diff --git a/.changeset/nine-frogs-argue.md b/.changeset/nine-frogs-argue.md
new file mode 100644
index 00000000..ec0515b4
--- /dev/null
+++ b/.changeset/nine-frogs-argue.md
@@ -0,0 +1,19 @@
+---
+"@evolution-sdk/evolution": minor
+---
+
+Add `sendAll()` API to TxBuilder for draining wallet assets to a single address.
+
+This new method simplifies the common use case of transferring all wallet assets:
+- Automatically selects all wallet UTxOs as inputs
+- Creates a single output with all assets minus the transaction fee
+- Properly calculates minUTxO for the destination output
+- Validates incompatibility with other operations (payToAddress, collectFrom, mint, staking, governance)
+
+Usage:
+```typescript
+const tx = await client
+  .newTx()
+  .sendAll({ to: recipientAddress })
+  .build()
+```
diff --git a/docs/content/docs/modules/sdk/builders/operations/SendAll.mdx b/docs/content/docs/modules/sdk/builders/operations/SendAll.mdx
new file mode 100644
index 00000000..60dab2e7
--- /dev/null
+++ b/docs/content/docs/modules/sdk/builders/operations/SendAll.mdx
@@ -0,0 +1,61 @@
+---
+title: sdk/builders/operations/SendAll.ts
+nav_order: 131
+parent: Modules
+---
+
+## SendAll overview
+
+SendAll operation - sends all wallet assets to a recipient address.
+
+This operation marks the transaction as a "send all" transaction,
+which triggers special handling in the build phases:
+
+1. All wallet UTxOs are collected as inputs
+2. A single output is created with all assets minus fee
+3. No change output is created (everything goes to recipient)
+
+Added in v2.0.0
+
+---
+
+<h2 className="text-delta">Table of contents</h2>
+
+- [programs](#programs)
+  - [createSendAllProgram](#createsendallprogram)
+- [types](#types)
+  - [SendAllTarget (type alias)](#sendalltarget-type-alias)
+
+---
+
+# programs
+
+## createSendAllProgram
+
+Creates a ProgramStep for sendAll operation.
+
+This sets up the sendAll mode in the builder state, which is processed
+during the build phases. The actual UTxO collection and output creation
+happens during the build process when wallet UTxOs are available.
+
+**Signature**
+
+```ts
+export declare const createSendAllProgram: (params: SendAllParams) => Effect.Effect<void, never, TxContext>
+```
+
+Added in v2.0.0
+
+# types
+
+## SendAllTarget (type alias)
+
+Type representing the sendAll target address in builder state.
+
+**Signature**
+
+```ts
+export type SendAllTarget = CoreAddress.Address
+```
+
+Added in v2.0.0
diff --git a/packages/evolution/docs/modules/SingleHostAddr.ts.md b/packages/evolution/docs/modules/SingleHostAddr.ts.md
index 0ac1938f..e848b9cb 100644
--- a/packages/evolution/docs/modules/SingleHostAddr.ts.md
+++ b/packages/evolution/docs/modules/SingleHostAddr.ts.md
@@ -1,6 +1,6 @@
 ---
 title: SingleHostAddr.ts
-nav_order: 163
+nav_order: 164
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/SingleHostName.ts.md b/packages/evolution/docs/modules/SingleHostName.ts.md
index 0a1f83c8..cd06e214 100644
--- a/packages/evolution/docs/modules/SingleHostName.ts.md
+++ b/packages/evolution/docs/modules/SingleHostName.ts.md
@@ -1,6 +1,6 @@
 ---
 title: SingleHostName.ts
-nav_order: 164
+nav_order: 165
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/StakeReference.ts.md b/packages/evolution/docs/modules/StakeReference.ts.md
index 633455b2..326e77dd 100644
--- a/packages/evolution/docs/modules/StakeReference.ts.md
+++ b/packages/evolution/docs/modules/StakeReference.ts.md
@@ -1,6 +1,6 @@
 ---
 title: StakeReference.ts
-nav_order: 165
+nav_order: 166
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/TSchema.ts.md b/packages/evolution/docs/modules/TSchema.ts.md
index 7d39da47..57c6da05 100644
--- a/packages/evolution/docs/modules/TSchema.ts.md
+++ b/packages/evolution/docs/modules/TSchema.ts.md
@@ -1,6 +1,6 @@
 ---
 title: TSchema.ts
-nav_order: 180
+nav_order: 181
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/Text.ts.md b/packages/evolution/docs/modules/Text.ts.md
index 03dbed01..56f72a81 100644
--- a/packages/evolution/docs/modules/Text.ts.md
+++ b/packages/evolution/docs/modules/Text.ts.md
@@ -1,6 +1,6 @@
 ---
 title: Text.ts
-nav_order: 166
+nav_order: 167
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/Text128.ts.md b/packages/evolution/docs/modules/Text128.ts.md
index ebfc838c..74376949 100644
--- a/packages/evolution/docs/modules/Text128.ts.md
+++ b/packages/evolution/docs/modules/Text128.ts.md
@@ -1,6 +1,6 @@
 ---
 title: Text128.ts
-nav_order: 167
+nav_order: 168
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/Time/Slot.ts.md b/packages/evolution/docs/modules/Time/Slot.ts.md
index 23e3e3f0..7907f5ae 100644
--- a/packages/evolution/docs/modules/Time/Slot.ts.md
+++ b/packages/evolution/docs/modules/Time/Slot.ts.md
@@ -1,6 +1,6 @@
 ---
 title: Time/Slot.ts
-nav_order: 168
+nav_order: 169
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/Time/SlotConfig.ts.md b/packages/evolution/docs/modules/Time/SlotConfig.ts.md
index afcbc402..06a63609 100644
--- a/packages/evolution/docs/modules/Time/SlotConfig.ts.md
+++ b/packages/evolution/docs/modules/Time/SlotConfig.ts.md
@@ -1,6 +1,6 @@
 ---
 title: Time/SlotConfig.ts
-nav_order: 169
+nav_order: 170
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/Time/UnixTime.ts.md b/packages/evolution/docs/modules/Time/UnixTime.ts.md
index 7586b75c..6e6c90ae 100644
--- a/packages/evolution/docs/modules/Time/UnixTime.ts.md
+++ b/packages/evolution/docs/modules/Time/UnixTime.ts.md
@@ -1,6 +1,6 @@
 ---
 title: Time/UnixTime.ts
-nav_order: 170
+nav_order: 171
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/Transaction.ts.md b/packages/evolution/docs/modules/Transaction.ts.md
index f6e4da59..796ad00b 100644
--- a/packages/evolution/docs/modules/Transaction.ts.md
+++ b/packages/evolution/docs/modules/Transaction.ts.md
@@ -1,6 +1,6 @@
 ---
 title: Transaction.ts
-nav_order: 171
+nav_order: 172
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/TransactionBody.ts.md b/packages/evolution/docs/modules/TransactionBody.ts.md
index 5ef5f3b2..4b6fa74d 100644
--- a/packages/evolution/docs/modules/TransactionBody.ts.md
+++ b/packages/evolution/docs/modules/TransactionBody.ts.md
@@ -1,6 +1,6 @@
 ---
 title: TransactionBody.ts
-nav_order: 172
+nav_order: 173
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/TransactionHash.ts.md b/packages/evolution/docs/modules/TransactionHash.ts.md
index 1eb99833..5b6fae4f 100644
--- a/packages/evolution/docs/modules/TransactionHash.ts.md
+++ b/packages/evolution/docs/modules/TransactionHash.ts.md
@@ -1,6 +1,6 @@
 ---
 title: TransactionHash.ts
-nav_order: 173
+nav_order: 174
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/TransactionIndex.ts.md b/packages/evolution/docs/modules/TransactionIndex.ts.md
index 51f19c8e..ebb07f33 100644
--- a/packages/evolution/docs/modules/TransactionIndex.ts.md
+++ b/packages/evolution/docs/modules/TransactionIndex.ts.md
@@ -1,6 +1,6 @@
 ---
 title: TransactionIndex.ts
-nav_order: 174
+nav_order: 175
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/TransactionInput.ts.md b/packages/evolution/docs/modules/TransactionInput.ts.md
index ef03efa7..f24adb53 100644
--- a/packages/evolution/docs/modules/TransactionInput.ts.md
+++ b/packages/evolution/docs/modules/TransactionInput.ts.md
@@ -1,6 +1,6 @@
 ---
 title: TransactionInput.ts
-nav_order: 175
+nav_order: 176
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/TransactionMetadatum.ts.md b/packages/evolution/docs/modules/TransactionMetadatum.ts.md
index daa21b67..a9a0a8ce 100644
--- a/packages/evolution/docs/modules/TransactionMetadatum.ts.md
+++ b/packages/evolution/docs/modules/TransactionMetadatum.ts.md
@@ -1,6 +1,6 @@
 ---
 title: TransactionMetadatum.ts
-nav_order: 176
+nav_order: 177
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/TransactionMetadatumLabels.ts.md b/packages/evolution/docs/modules/TransactionMetadatumLabels.ts.md
index ffa6a675..1c6a8d44 100644
--- a/packages/evolution/docs/modules/TransactionMetadatumLabels.ts.md
+++ b/packages/evolution/docs/modules/TransactionMetadatumLabels.ts.md
@@ -1,6 +1,6 @@
 ---
 title: TransactionMetadatumLabels.ts
-nav_order: 177
+nav_order: 178
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/TransactionOutput.ts.md b/packages/evolution/docs/modules/TransactionOutput.ts.md
index 88d44a39..fe35b6b3 100644
--- a/packages/evolution/docs/modules/TransactionOutput.ts.md
+++ b/packages/evolution/docs/modules/TransactionOutput.ts.md
@@ -1,6 +1,6 @@
 ---
 title: TransactionOutput.ts
-nav_order: 178
+nav_order: 179
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/TransactionWitnessSet.ts.md b/packages/evolution/docs/modules/TransactionWitnessSet.ts.md
index 566fcdc8..c2638d29 100644
--- a/packages/evolution/docs/modules/TransactionWitnessSet.ts.md
+++ b/packages/evolution/docs/modules/TransactionWitnessSet.ts.md
@@ -1,6 +1,6 @@
 ---
 title: TransactionWitnessSet.ts
-nav_order: 179
+nav_order: 180
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/TxOut.ts.md b/packages/evolution/docs/modules/TxOut.ts.md
index 2f3d62db..a9555688 100644
--- a/packages/evolution/docs/modules/TxOut.ts.md
+++ b/packages/evolution/docs/modules/TxOut.ts.md
@@ -1,6 +1,6 @@
 ---
 title: TxOut.ts
-nav_order: 181
+nav_order: 182
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/UTxO.ts.md b/packages/evolution/docs/modules/UTxO.ts.md
index 771e0d0c..1bdb7fb2 100644
--- a/packages/evolution/docs/modules/UTxO.ts.md
+++ b/packages/evolution/docs/modules/UTxO.ts.md
@@ -1,6 +1,6 @@
 ---
 title: UTxO.ts
-nav_order: 188
+nav_order: 189
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/UnitInterval.ts.md b/packages/evolution/docs/modules/UnitInterval.ts.md
index 68dc412f..9807a38f 100644
--- a/packages/evolution/docs/modules/UnitInterval.ts.md
+++ b/packages/evolution/docs/modules/UnitInterval.ts.md
@@ -1,6 +1,6 @@
 ---
 title: UnitInterval.ts
-nav_order: 182
+nav_order: 183
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/Url.ts.md b/packages/evolution/docs/modules/Url.ts.md
index c8b7ab22..7444b869 100644
--- a/packages/evolution/docs/modules/Url.ts.md
+++ b/packages/evolution/docs/modules/Url.ts.md
@@ -1,6 +1,6 @@
 ---
 title: Url.ts
-nav_order: 184
+nav_order: 185
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/VKey.ts.md b/packages/evolution/docs/modules/VKey.ts.md
index 2bb622f1..2d75ccfd 100644
--- a/packages/evolution/docs/modules/VKey.ts.md
+++ b/packages/evolution/docs/modules/VKey.ts.md
@@ -1,6 +1,6 @@
 ---
 title: VKey.ts
-nav_order: 190
+nav_order: 191
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/Value.ts.md b/packages/evolution/docs/modules/Value.ts.md
index d7886385..5c98cdd3 100644
--- a/packages/evolution/docs/modules/Value.ts.md
+++ b/packages/evolution/docs/modules/Value.ts.md
@@ -1,6 +1,6 @@
 ---
 title: Value.ts
-nav_order: 189
+nav_order: 190
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/VotingProcedures.ts.md b/packages/evolution/docs/modules/VotingProcedures.ts.md
index 2130d1b9..a3c11947 100644
--- a/packages/evolution/docs/modules/VotingProcedures.ts.md
+++ b/packages/evolution/docs/modules/VotingProcedures.ts.md
@@ -1,6 +1,6 @@
 ---
 title: VotingProcedures.ts
-nav_order: 191
+nav_order: 192
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/VrfCert.ts.md b/packages/evolution/docs/modules/VrfCert.ts.md
index ac6d7351..cf20cebe 100644
--- a/packages/evolution/docs/modules/VrfCert.ts.md
+++ b/packages/evolution/docs/modules/VrfCert.ts.md
@@ -1,6 +1,6 @@
 ---
 title: VrfCert.ts
-nav_order: 192
+nav_order: 193
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/VrfKeyHash.ts.md b/packages/evolution/docs/modules/VrfKeyHash.ts.md
index af94e807..ecdc77ea 100644
--- a/packages/evolution/docs/modules/VrfKeyHash.ts.md
+++ b/packages/evolution/docs/modules/VrfKeyHash.ts.md
@@ -1,6 +1,6 @@
 ---
 title: VrfKeyHash.ts
-nav_order: 193
+nav_order: 194
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/VrfVkey.ts.md b/packages/evolution/docs/modules/VrfVkey.ts.md
index 4e041555..eeb552e9 100644
--- a/packages/evolution/docs/modules/VrfVkey.ts.md
+++ b/packages/evolution/docs/modules/VrfVkey.ts.md
@@ -1,6 +1,6 @@
 ---
 title: VrfVkey.ts
-nav_order: 194
+nav_order: 195
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/Withdrawals.ts.md b/packages/evolution/docs/modules/Withdrawals.ts.md
index d81f2c51..bad6dd36 100644
--- a/packages/evolution/docs/modules/Withdrawals.ts.md
+++ b/packages/evolution/docs/modules/Withdrawals.ts.md
@@ -1,6 +1,6 @@
 ---
 title: Withdrawals.ts
-nav_order: 195
+nav_order: 196
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/EvalRedeemer.ts.md b/packages/evolution/docs/modules/sdk/EvalRedeemer.ts.md
index 64ad62ef..ca5821d1 100644
--- a/packages/evolution/docs/modules/sdk/EvalRedeemer.ts.md
+++ b/packages/evolution/docs/modules/sdk/EvalRedeemer.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/EvalRedeemer.ts
-nav_order: 154
+nav_order: 155
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/Type.ts.md b/packages/evolution/docs/modules/sdk/Type.ts.md
index 341ce317..48b5de33 100644
--- a/packages/evolution/docs/modules/sdk/Type.ts.md
+++ b/packages/evolution/docs/modules/sdk/Type.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/Type.ts
-nav_order: 160
+nav_order: 161
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/RedeemerBuilder.ts.md b/packages/evolution/docs/modules/sdk/builders/RedeemerBuilder.ts.md
index 7634c19c..bd1137f0 100644
--- a/packages/evolution/docs/modules/sdk/builders/RedeemerBuilder.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/RedeemerBuilder.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/RedeemerBuilder.ts
-nav_order: 143
+nav_order: 144
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/SignBuilder.ts.md b/packages/evolution/docs/modules/sdk/builders/SignBuilder.ts.md
index 20a75ab3..66083bb9 100644
--- a/packages/evolution/docs/modules/sdk/builders/SignBuilder.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/SignBuilder.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/SignBuilder.ts
-nav_order: 144
+nav_order: 145
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/SignBuilderImpl.ts.md b/packages/evolution/docs/modules/sdk/builders/SignBuilderImpl.ts.md
index e5038e3a..a56275fb 100644
--- a/packages/evolution/docs/modules/sdk/builders/SignBuilderImpl.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/SignBuilderImpl.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/SignBuilderImpl.ts
-nav_order: 145
+nav_order: 146
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/SubmitBuilder.ts.md b/packages/evolution/docs/modules/sdk/builders/SubmitBuilder.ts.md
index d65e8727..f7479644 100644
--- a/packages/evolution/docs/modules/sdk/builders/SubmitBuilder.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/SubmitBuilder.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/SubmitBuilder.ts
-nav_order: 146
+nav_order: 147
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/SubmitBuilderImpl.ts.md b/packages/evolution/docs/modules/sdk/builders/SubmitBuilderImpl.ts.md
index 7a72fa6e..a7cac2b3 100644
--- a/packages/evolution/docs/modules/sdk/builders/SubmitBuilderImpl.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/SubmitBuilderImpl.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/SubmitBuilderImpl.ts
-nav_order: 147
+nav_order: 148
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/TransactionBuilder.ts.md b/packages/evolution/docs/modules/sdk/builders/TransactionBuilder.ts.md
index a78cfa46..7e86d0c2 100644
--- a/packages/evolution/docs/modules/sdk/builders/TransactionBuilder.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/TransactionBuilder.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/TransactionBuilder.ts
-nav_order: 148
+nav_order: 149
 parent: Modules
 ---
 
@@ -256,6 +256,39 @@ export interface TransactionBuilderBase {
    */
   readonly collectFrom: (params: CollectFromParams) => this
 
+  /**
+   * Send all wallet assets to a recipient address.
+   *
+   * This operation collects all wallet UTxOs and creates a single output
+   * containing all assets minus the transaction fee. No change output is created.
+   *
+   * Use cases:
+   * - Draining a wallet completely
+   * - Consolidating all UTxOs into a single output
+   * - Migrating funds to a new address
+   *
+   * **Important**: This operation is mutually exclusive with `payToAddress` and `collectFrom`.
+   * When `sendAll` is used, all wallet UTxOs are automatically collected and the output
+   * is automatically created. Any existing outputs or inputs will cause an error.
+   *
+   * Queues a deferred operation that will be executed when build() is called.
+   * Returns the same builder for method chaining.
+   *
+   * @example
+   * ```typescript
+   * import { Address } from "@evolution-sdk/evolution"
+   *
+   * const tx = await client
+   *   .newTx()
+   *   .sendAll({ to: Address.fromBech32("addr1...") })
+   *   .build()
+   * ```
+   *
+   * @since 2.0.0
+   * @category builder-methods
+   */
+  readonly sendAll: (params: SendAllParams) => this
+
   /**
    * Attach a script to the transaction.
    *
@@ -1439,6 +1472,7 @@ export interface TxBuilderState {
   }
   readonly requiredSigners: ReadonlyArray<KeyHash.KeyHash> // Extra signers required (for script validation)
   readonly auxiliaryData?: AuxiliaryData.AuxiliaryData // Auxiliary data (metadata, scripts, etc.)
+  readonly sendAllTo?: CoreAddress.Address // Target address for sendAll operation
 }
 ```
 
diff --git a/packages/evolution/docs/modules/sdk/builders/TransactionResult.ts.md b/packages/evolution/docs/modules/sdk/builders/TransactionResult.ts.md
index 725985bc..142047bc 100644
--- a/packages/evolution/docs/modules/sdk/builders/TransactionResult.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/TransactionResult.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/TransactionResult.ts
-nav_order: 149
+nav_order: 150
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/TxBuilderImpl.ts.md b/packages/evolution/docs/modules/sdk/builders/TxBuilderImpl.ts.md
index e768027d..fb500d0c 100644
--- a/packages/evolution/docs/modules/sdk/builders/TxBuilderImpl.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/TxBuilderImpl.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/TxBuilderImpl.ts
-nav_order: 150
+nav_order: 151
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/Unfrack.ts.md b/packages/evolution/docs/modules/sdk/builders/Unfrack.ts.md
index ce9a37e5..7fc3b8a9 100644
--- a/packages/evolution/docs/modules/sdk/builders/Unfrack.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/Unfrack.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/Unfrack.ts
-nav_order: 151
+nav_order: 152
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/operations/Operations.ts.md b/packages/evolution/docs/modules/sdk/builders/operations/Operations.ts.md
index 7df5bb76..6da1c98b 100644
--- a/packages/evolution/docs/modules/sdk/builders/operations/Operations.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/operations/Operations.ts.md
@@ -20,6 +20,8 @@ parent: Modules
   - [VoteParams (interface)](#voteparams-interface)
 - [metadata](#metadata)
   - [AttachMetadataParams (interface)](#attachmetadataparams-interface)
+- [payment](#payment)
+  - [SendAllParams (interface)](#sendallparams-interface)
 - [pool](#pool)
   - [RegisterPoolParams (interface)](#registerpoolparams-interface)
   - [RetirePoolParams (interface)](#retirepoolparams-interface)
@@ -238,6 +240,30 @@ export interface AttachMetadataParams {
 
 Added in v2.0.0
 
+# payment
+
+## SendAllParams (interface)
+
+Parameters for sending all wallet assets to a recipient address.
+
+This operation collects all wallet UTxOs and creates a single output
+containing all assets minus the transaction fee. It's commonly used for:
+
+- Draining a wallet completely
+- Consolidating all UTxOs into a single output
+- Migrating funds to a new address
+
+**Signature**
+
+```ts
+export interface SendAllParams {
+  /** The recipient address to receive all assets */
+  readonly to: CoreAddress.Address
+}
+```
+
+Added in v2.0.0
+
 # pool
 
 ## RegisterPoolParams (interface)
diff --git a/packages/evolution/docs/modules/sdk/builders/operations/SendAll.ts.md b/packages/evolution/docs/modules/sdk/builders/operations/SendAll.ts.md
new file mode 100644
index 00000000..b80224a7
--- /dev/null
+++ b/packages/evolution/docs/modules/sdk/builders/operations/SendAll.ts.md
@@ -0,0 +1,61 @@
+---
+title: sdk/builders/operations/SendAll.ts
+nav_order: 131
+parent: Modules
+---
+
+## SendAll overview
+
+SendAll operation - sends all wallet assets to a recipient address.
+
+This operation marks the transaction as a "send all" transaction,
+which triggers special handling in the build phases:
+
+1. All wallet UTxOs are collected as inputs
+2. A single output is created with all assets minus fee
+3. No change output is created (everything goes to recipient)
+
+Added in v2.0.0
+
+---
+
+<h2 class="text-delta">Table of contents</h2>
+
+- [programs](#programs)
+  - [createSendAllProgram](#createsendallprogram)
+- [types](#types)
+  - [SendAllTarget (type alias)](#sendalltarget-type-alias)
+
+---
+
+# programs
+
+## createSendAllProgram
+
+Creates a ProgramStep for sendAll operation.
+
+This sets up the sendAll mode in the builder state, which is processed
+during the build phases. The actual UTxO collection and output creation
+happens during the build process when wallet UTxOs are available.
+
+**Signature**
+
+```ts
+export declare const createSendAllProgram: (params: SendAllParams) => Effect.Effect<void, never, TxContext>
+```
+
+Added in v2.0.0
+
+# types
+
+## SendAllTarget (type alias)
+
+Type representing the sendAll target address in builder state.
+
+**Signature**
+
+```ts
+export type SendAllTarget = CoreAddress.Address
+```
+
+Added in v2.0.0
diff --git a/packages/evolution/docs/modules/sdk/builders/operations/Stake.ts.md b/packages/evolution/docs/modules/sdk/builders/operations/Stake.ts.md
index 0f321370..7b30d15f 100644
--- a/packages/evolution/docs/modules/sdk/builders/operations/Stake.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/operations/Stake.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/operations/Stake.ts
-nav_order: 131
+nav_order: 132
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/operations/Validity.ts.md b/packages/evolution/docs/modules/sdk/builders/operations/Validity.ts.md
index eab23593..6f7e4cff 100644
--- a/packages/evolution/docs/modules/sdk/builders/operations/Validity.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/operations/Validity.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/operations/Validity.ts
-nav_order: 132
+nav_order: 133
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/operations/Vote.ts.md b/packages/evolution/docs/modules/sdk/builders/operations/Vote.ts.md
index 0072444e..1b211873 100644
--- a/packages/evolution/docs/modules/sdk/builders/operations/Vote.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/operations/Vote.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/operations/Vote.ts
-nav_order: 133
+nav_order: 134
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/phases/Balance.ts.md b/packages/evolution/docs/modules/sdk/builders/phases/Balance.ts.md
index 1ba66089..b71cbade 100644
--- a/packages/evolution/docs/modules/sdk/builders/phases/Balance.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/phases/Balance.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/phases/Balance.ts
-nav_order: 134
+nav_order: 135
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/phases/ChangeCreation.ts.md b/packages/evolution/docs/modules/sdk/builders/phases/ChangeCreation.ts.md
index aa9ba558..5e9efb07 100644
--- a/packages/evolution/docs/modules/sdk/builders/phases/ChangeCreation.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/phases/ChangeCreation.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/phases/ChangeCreation.ts
-nav_order: 135
+nav_order: 136
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/phases/Collateral.ts.md b/packages/evolution/docs/modules/sdk/builders/phases/Collateral.ts.md
index 5c8dea67..fee962f2 100644
--- a/packages/evolution/docs/modules/sdk/builders/phases/Collateral.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/phases/Collateral.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/phases/Collateral.ts
-nav_order: 136
+nav_order: 137
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/phases/Evaluation.ts.md b/packages/evolution/docs/modules/sdk/builders/phases/Evaluation.ts.md
index f6dee331..88054055 100644
--- a/packages/evolution/docs/modules/sdk/builders/phases/Evaluation.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/phases/Evaluation.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/phases/Evaluation.ts
-nav_order: 137
+nav_order: 138
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/phases/Fallback.ts.md b/packages/evolution/docs/modules/sdk/builders/phases/Fallback.ts.md
index 3a369852..e0f9ca71 100644
--- a/packages/evolution/docs/modules/sdk/builders/phases/Fallback.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/phases/Fallback.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/phases/Fallback.ts
-nav_order: 138
+nav_order: 139
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/phases/FeeCalculation.ts.md b/packages/evolution/docs/modules/sdk/builders/phases/FeeCalculation.ts.md
index a5433a33..cc1f1e71 100644
--- a/packages/evolution/docs/modules/sdk/builders/phases/FeeCalculation.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/phases/FeeCalculation.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/phases/FeeCalculation.ts
-nav_order: 139
+nav_order: 140
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/phases/Phases.ts.md b/packages/evolution/docs/modules/sdk/builders/phases/Phases.ts.md
index a2b2e3dc..5f3e2333 100644
--- a/packages/evolution/docs/modules/sdk/builders/phases/Phases.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/phases/Phases.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/phases/Phases.ts
-nav_order: 140
+nav_order: 141
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/phases/Selection.ts.md b/packages/evolution/docs/modules/sdk/builders/phases/Selection.ts.md
index 12df981d..d2d8978b 100644
--- a/packages/evolution/docs/modules/sdk/builders/phases/Selection.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/phases/Selection.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/phases/Selection.ts
-nav_order: 141
+nav_order: 142
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/builders/phases/utils.ts.md b/packages/evolution/docs/modules/sdk/builders/phases/utils.ts.md
index 4e6904a4..87bb1386 100644
--- a/packages/evolution/docs/modules/sdk/builders/phases/utils.ts.md
+++ b/packages/evolution/docs/modules/sdk/builders/phases/utils.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/builders/phases/utils.ts
-nav_order: 142
+nav_order: 143
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/client/Client.ts.md b/packages/evolution/docs/modules/sdk/client/Client.ts.md
index 06d927b1..aa59ded6 100644
--- a/packages/evolution/docs/modules/sdk/client/Client.ts.md
+++ b/packages/evolution/docs/modules/sdk/client/Client.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/client/Client.ts
-nav_order: 152
+nav_order: 153
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/client/ClientImpl.ts.md b/packages/evolution/docs/modules/sdk/client/ClientImpl.ts.md
index 50d352e9..4e7cd1bc 100644
--- a/packages/evolution/docs/modules/sdk/client/ClientImpl.ts.md
+++ b/packages/evolution/docs/modules/sdk/client/ClientImpl.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/client/ClientImpl.ts
-nav_order: 153
+nav_order: 154
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/provider/Blockfrost.ts.md b/packages/evolution/docs/modules/sdk/provider/Blockfrost.ts.md
index 17483962..4f4f009b 100644
--- a/packages/evolution/docs/modules/sdk/provider/Blockfrost.ts.md
+++ b/packages/evolution/docs/modules/sdk/provider/Blockfrost.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/provider/Blockfrost.ts
-nav_order: 155
+nav_order: 156
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/provider/Koios.ts.md b/packages/evolution/docs/modules/sdk/provider/Koios.ts.md
index 70046841..b4d286c5 100644
--- a/packages/evolution/docs/modules/sdk/provider/Koios.ts.md
+++ b/packages/evolution/docs/modules/sdk/provider/Koios.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/provider/Koios.ts
-nav_order: 156
+nav_order: 157
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/provider/Kupmios.ts.md b/packages/evolution/docs/modules/sdk/provider/Kupmios.ts.md
index 9e132cc3..46357ba7 100644
--- a/packages/evolution/docs/modules/sdk/provider/Kupmios.ts.md
+++ b/packages/evolution/docs/modules/sdk/provider/Kupmios.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/provider/Kupmios.ts
-nav_order: 157
+nav_order: 158
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/provider/Maestro.ts.md b/packages/evolution/docs/modules/sdk/provider/Maestro.ts.md
index 6ea7b9c3..a38d8b24 100644
--- a/packages/evolution/docs/modules/sdk/provider/Maestro.ts.md
+++ b/packages/evolution/docs/modules/sdk/provider/Maestro.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/provider/Maestro.ts
-nav_order: 158
+nav_order: 159
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/provider/Provider.ts.md b/packages/evolution/docs/modules/sdk/provider/Provider.ts.md
index fbf51d0c..88b30035 100644
--- a/packages/evolution/docs/modules/sdk/provider/Provider.ts.md
+++ b/packages/evolution/docs/modules/sdk/provider/Provider.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/provider/Provider.ts
-nav_order: 159
+nav_order: 160
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/wallet/Derivation.ts.md b/packages/evolution/docs/modules/sdk/wallet/Derivation.ts.md
index 33408eeb..7f4e02bb 100644
--- a/packages/evolution/docs/modules/sdk/wallet/Derivation.ts.md
+++ b/packages/evolution/docs/modules/sdk/wallet/Derivation.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/wallet/Derivation.ts
-nav_order: 161
+nav_order: 162
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/sdk/wallet/WalletNew.ts.md b/packages/evolution/docs/modules/sdk/wallet/WalletNew.ts.md
index e28b39f1..e6db77df 100644
--- a/packages/evolution/docs/modules/sdk/wallet/WalletNew.ts.md
+++ b/packages/evolution/docs/modules/sdk/wallet/WalletNew.ts.md
@@ -1,6 +1,6 @@
 ---
 title: sdk/wallet/WalletNew.ts
-nav_order: 162
+nav_order: 163
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/uplc/UPLC.ts.md b/packages/evolution/docs/modules/uplc/UPLC.ts.md
index e8e54aac..4e24ac39 100644
--- a/packages/evolution/docs/modules/uplc/UPLC.ts.md
+++ b/packages/evolution/docs/modules/uplc/UPLC.ts.md
@@ -1,6 +1,6 @@
 ---
 title: uplc/UPLC.ts
-nav_order: 183
+nav_order: 184
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/utils/FeeValidation.ts.md b/packages/evolution/docs/modules/utils/FeeValidation.ts.md
index 8ddb1f06..25973f4e 100644
--- a/packages/evolution/docs/modules/utils/FeeValidation.ts.md
+++ b/packages/evolution/docs/modules/utils/FeeValidation.ts.md
@@ -1,6 +1,6 @@
 ---
 title: utils/FeeValidation.ts
-nav_order: 186
+nav_order: 187
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/utils/Hash.ts.md b/packages/evolution/docs/modules/utils/Hash.ts.md
index 34ad8387..f4f98f92 100644
--- a/packages/evolution/docs/modules/utils/Hash.ts.md
+++ b/packages/evolution/docs/modules/utils/Hash.ts.md
@@ -1,6 +1,6 @@
 ---
 title: utils/Hash.ts
-nav_order: 187
+nav_order: 188
 parent: Modules
 ---
 
diff --git a/packages/evolution/docs/modules/utils/effect-runtime.ts.md b/packages/evolution/docs/modules/utils/effect-runtime.ts.md
index 74ce2c2e..1967b2cf 100644
--- a/packages/evolution/docs/modules/utils/effect-runtime.ts.md
+++ b/packages/evolution/docs/modules/utils/effect-runtime.ts.md
@@ -1,6 +1,6 @@
 ---
 title: utils/effect-runtime.ts
-nav_order: 185
+nav_order: 186
 parent: Modules
 ---
 
diff --git a/packages/evolution/src/sdk/builders/TransactionBuilder.ts b/packages/evolution/src/sdk/builders/TransactionBuilder.ts
index 5d21993a..8092d0cd 100644
--- a/packages/evolution/src/sdk/builders/TransactionBuilder.ts
+++ b/packages/evolution/src/sdk/builders/TransactionBuilder.ts
@@ -84,6 +84,7 @@ import type {
   RegisterStakeParams,
   ResignCommitteeColdParams,
   RetirePoolParams,
+  SendAllParams,
   UpdateDRepParams,
   ValidityParams,
   VoteParams,
@@ -93,6 +94,7 @@ import { createPayToAddressProgram } from "./operations/Pay.js"
 import { createRegisterPoolProgram, createRetirePoolProgram } from "./operations/Pool.js"
 import { createProposeProgram } from "./operations/Propose.js"
 import { createReadFromProgram } from "./operations/ReadFrom.js"
+import { createSendAllProgram } from "./operations/SendAll.js"
 import {
   createDelegateToDRepProgram,
   createDelegateToPoolAndDRepProgram,
@@ -1345,6 +1347,7 @@ export interface TxBuilderState {
   }
   readonly requiredSigners: ReadonlyArray<KeyHash.KeyHash> // Extra signers required (for script validation)
   readonly auxiliaryData?: AuxiliaryData.AuxiliaryData // Auxiliary data (metadata, scripts, etc.)
+  readonly sendAllTo?: CoreAddress.Address // Target address for sendAll operation
 }
 
 /**
@@ -1600,6 +1603,39 @@ export interface TransactionBuilderBase {
    */
   readonly collectFrom: (params: CollectFromParams) => this
 
+  /**
+   * Send all wallet assets to a recipient address.
+   *
+   * This operation collects all wallet UTxOs and creates a single output
+   * containing all assets minus the transaction fee. No change output is created.
+   *
+   * Use cases:
+   * - Draining a wallet completely
+   * - Consolidating all UTxOs into a single output
+   * - Migrating funds to a new address
+   *
+   * **Important**: This operation is mutually exclusive with `payToAddress` and `collectFrom`.
+   * When `sendAll` is used, all wallet UTxOs are automatically collected and the output
+   * is automatically created. Any existing outputs or inputs will cause an error.
+   *
+   * Queues a deferred operation that will be executed when build() is called.
+   * Returns the same builder for method chaining.
+   *
+   * @example
+   * ```typescript
+   * import { Address } from "@evolution-sdk/evolution"
+   *
+   * const tx = await client
+   *   .newTx()
+   *   .sendAll({ to: Address.fromBech32("addr1...") })
+   *   .build()
+   * ```
+   *
+   * @since 2.0.0
+   * @category builder-methods
+   */
+  readonly sendAll: (params: SendAllParams) => this
+
   /**
    * Attach a script to the transaction.
    *
@@ -2458,6 +2494,13 @@ export function makeTxBuilder(config: TxBuilderConfig) {
       return txBuilder // Return same instance for chaining
     },
 
+    sendAll: (params: SendAllParams) => {
+      // Create ProgramStep for deferred execution
+      const program = createSendAllProgram(params)
+      programs.push(program)
+      return txBuilder // Return same instance for chaining
+    },
+
     mintAssets: (params: MintTokensParams) => {
       // Create ProgramStep for deferred execution
       const program = createMintAssetsProgram(params)
diff --git a/packages/evolution/src/sdk/builders/operations/Operations.ts b/packages/evolution/src/sdk/builders/operations/Operations.ts
index 1fb51271..026aa94f 100644
--- a/packages/evolution/src/sdk/builders/operations/Operations.ts
+++ b/packages/evolution/src/sdk/builders/operations/Operations.ts
@@ -485,4 +485,25 @@ export interface ProposeParams {
   readonly rewardAccount: RewardAccount.RewardAccount
   /** Optional anchor with metadata URL and hash */
   readonly anchor: Anchor.Anchor | null
+}
+
+// ============================================================================
+// Send All Operation
+// ============================================================================
+
+/**
+ * Parameters for sending all wallet assets to a recipient address.
+ *
+ * This operation collects all wallet UTxOs and creates a single output
+ * containing all assets minus the transaction fee. It's commonly used for:
+ * - Draining a wallet completely
+ * - Consolidating all UTxOs into a single output
+ * - Migrating funds to a new address
+ *
+ * @since 2.0.0
+ * @category payment
+ */
+export interface SendAllParams {
+  /** The recipient address to receive all assets */
+  readonly to: CoreAddress.Address
 }
\ No newline at end of file
diff --git a/packages/evolution/src/sdk/builders/operations/SendAll.ts b/packages/evolution/src/sdk/builders/operations/SendAll.ts
new file mode 100644
index 00000000..19afbfc7
--- /dev/null
+++ b/packages/evolution/src/sdk/builders/operations/SendAll.ts
@@ -0,0 +1,51 @@
+/**
+ * SendAll operation - sends all wallet assets to a recipient address.
+ *
+ * This operation marks the transaction as a "send all" transaction,
+ * which triggers special handling in the build phases:
+ * 1. All wallet UTxOs are collected as inputs
+ * 2. A single output is created with all assets minus fee to the recipient
+ *
+ * Note: Internally the output is stored in `changeOutputs` (the standard mechanism
+ * for phase-created outputs), but semantically it represents the full transfer to
+ * the recipient - not traditional "change" that returns to the sender.
+ *
+ * @module operations/SendAll
+ * @since 2.0.0
+ */
+
+import { Effect, Ref } from "effect"
+
+import type * as CoreAddress from "../../../Address.js"
+import { TxContext } from "../TransactionBuilder.js"
+import type { SendAllParams } from "./Operations.js"
+
+/**
+ * Creates a ProgramStep for sendAll operation.
+ *
+ * This sets up the sendAll mode in the builder state, which is processed
+ * during the build phases. The actual UTxO collection and output creation
+ * happens during the build process when wallet UTxOs are available.
+ *
+ * @since 2.0.0
+ * @category programs
+ */
+export const createSendAllProgram = (params: SendAllParams) =>
+  Effect.gen(function* () {
+    const ctx = yield* TxContext
+
+    yield* Ref.update(ctx, (state) => ({
+      ...state,
+      sendAllTo: params.to
+    }))
+
+    yield* Effect.logDebug(`[SendAll] Configured to send all assets to ${params.to}`)
+  })
+
+/**
+ * Type representing the sendAll target address in builder state.
+ *
+ * @since 2.0.0
+ * @category types
+ */
+export type SendAllTarget = CoreAddress.Address
diff --git a/packages/evolution/src/sdk/builders/operations/index.ts b/packages/evolution/src/sdk/builders/operations/index.ts
index 4beee1f0..44dab63e 100644
--- a/packages/evolution/src/sdk/builders/operations/index.ts
+++ b/packages/evolution/src/sdk/builders/operations/index.ts
@@ -9,6 +9,7 @@ export * from "./Pay.js"
 export * from "./Pool.js"
 export * from "./Propose.js"
 export * from "./ReadFrom.js"
+export * from "./SendAll.js"
 export * from "./Stake.js"
 export * from "./Validity.js"
 export * from "./Vote.js"
diff --git a/packages/evolution/src/sdk/builders/phases/ChangeCreation.ts b/packages/evolution/src/sdk/builders/phases/ChangeCreation.ts
index f9607075..5081d8d6 100644
--- a/packages/evolution/src/sdk/builders/phases/ChangeCreation.ts
+++ b/packages/evolution/src/sdk/builders/phases/ChangeCreation.ts
@@ -197,6 +197,57 @@ export const executeChangeCreation = (): Effect.Effect<
     const rawLeftover = CoreAssets.subtractLovelace(leftoverBeforeFee, buildCtx.calculatedFee)
     const tentativeLeftover = CoreAssets.filter(rawLeftover, (_unit, amount) => amount > 0n)
 
+    // === SendAll Mode ===
+    // If sendAllTo is set, create a single output with all remaining assets to the target address
+    if (state.sendAllTo !== undefined) {
+      yield* Effect.logDebug(
+        `[ChangeCreation] SendAll mode: Creating output to ${state.sendAllTo} with ` +
+          `${formatAssetsForLog(tentativeLeftover)}`
+      )
+
+      const leftoverLovelace = CoreAssets.lovelaceOf(tentativeLeftover)
+
+      // Validate that we have enough for minUTxO
+      const protocolParams = yield* ProtocolParametersTag
+      const sendAllMinUtxo = yield* calculateMinimumUtxoLovelace({
+        address: state.sendAllTo,
+        assets: tentativeLeftover,
+        coinsPerUtxoByte: protocolParams.coinsPerUtxoByte
+      })
+
+      if (leftoverLovelace < sendAllMinUtxo) {
+        return yield* Effect.fail(
+          new TransactionBuilderError({
+            message:
+              `sendAll() failed: Insufficient funds to create valid output. ` +
+              `Available: ${leftoverLovelace} lovelace, Required: ${sendAllMinUtxo} lovelace (minUTxO). ` +
+              `The wallet balance after fees is too low to create a valid UTxO.`
+          })
+        )
+      }
+
+      // Create the sendAll output using the txOutputToTransactionOutput helper
+      const sendAllOutput = yield* txOutputToTransactionOutput({
+        address: state.sendAllTo,
+        assets: tentativeLeftover
+      })
+
+      // Store sendAll output in changeOutputs (the standard pattern for outputs created during phases).
+      // This follows the same convention as normal change outputs - outputs created during the
+      // phase loop go in changeOutputs, while state.outputs contains user-specified outputs.
+      yield* Ref.update(buildCtxRef, (ctx) => ({
+        ...ctx,
+        changeOutputs: [sendAllOutput]
+      }))
+
+      yield* Effect.logDebug(
+        `[ChangeCreation] SendAll: Created output with ${formatAssetsForLog(tentativeLeftover)}`
+      )
+
+      return { next: "feeCalculation" as const }
+    }
+
+    // === Normal Change Creation ===
     // Step 3: Check if negative - return to selection immediately
     const leftoverLovelace = CoreAssets.lovelaceOf(tentativeLeftover)
     if (leftoverLovelace < 0n) {
diff --git a/packages/evolution/src/sdk/builders/phases/Selection.ts b/packages/evolution/src/sdk/builders/phases/Selection.ts
index 32868ae5..b2084a8f 100644
--- a/packages/evolution/src/sdk/builders/phases/Selection.ts
+++ b/packages/evolution/src/sdk/builders/phases/Selection.ts
@@ -210,6 +210,104 @@ export const executeSelection = (): Effect.Effect<PhaseResult, TransactionBuilde
     const buildCtx = yield* Ref.get(buildCtxRef)
 
     const state = yield* Ref.get(ctx)
+
+    // === SendAll Mode ===
+    // If sendAllTo is set, collect ALL available UTxOs and skip normal selection
+    if (state.sendAllTo !== undefined) {
+      yield* Effect.logDebug("[Selection] SendAll mode detected - collecting all available UTxOs")
+
+      // Validation: sendAll is mutually exclusive with other builder operations
+      if (state.outputs.length > 0) {
+        return yield* Effect.fail(
+          new TransactionBuilderError({
+            message:
+              "sendAll() cannot be used with payToAddress(). " +
+              "sendAll automatically creates the output with all wallet assets."
+          })
+        )
+      }
+
+      if (state.selectedUtxos.length > 0) {
+        return yield* Effect.fail(
+          new TransactionBuilderError({
+            message:
+              "sendAll() cannot be used with collectFrom(). " +
+              "sendAll automatically collects all wallet UTxOs."
+          })
+        )
+      }
+
+      if (state.mint !== undefined) {
+        return yield* Effect.fail(
+          new TransactionBuilderError({
+            message:
+              "sendAll() cannot be used with mintAssets(). " +
+              "sendAll is designed for draining a wallet, not minting operations."
+          })
+        )
+      }
+
+      if (state.certificates.length > 0) {
+        return yield* Effect.fail(
+          new TransactionBuilderError({
+            message:
+              "sendAll() cannot be used with staking operations (registerStake, deregisterStake, delegateTo, etc.). " +
+              "sendAll is designed for simple wallet drain operations only."
+          })
+        )
+      }
+
+      if (state.withdrawals.size > 0) {
+        return yield* Effect.fail(
+          new TransactionBuilderError({
+            message:
+              "sendAll() cannot be used with withdraw(). " +
+              "sendAll is designed for simple wallet drain operations only."
+          })
+        )
+      }
+
+      if (state.votingProcedures !== undefined || state.proposalProcedures !== undefined) {
+        return yield* Effect.fail(
+          new TransactionBuilderError({
+            message:
+              "sendAll() cannot be used with governance operations (vote, propose). " +
+              "sendAll is designed for simple wallet drain operations only."
+          })
+        )
+      }
+
+      // Get all available UTxOs
+      const allAvailableUtxos = yield* AvailableUtxosTag
+
+      if (allAvailableUtxos.length === 0) {
+        return yield* Effect.fail(
+          new TransactionBuilderError({
+            message: "sendAll() failed: Wallet has no UTxOs to send."
+          })
+        )
+      }
+
+      // Select ALL UTxOs
+      yield* addUtxosToState(allAvailableUtxos)
+
+      const stateAfterSelection = yield* Ref.get(ctx)
+      const totalInputAssets = stateAfterSelection.totalInputAssets
+
+      yield* Effect.logDebug(
+        `[Selection] SendAll: Collected ${allAvailableUtxos.length} UTxO(s) with ` +
+          `${formatAssetsForLog(totalInputAssets)}`
+      )
+
+      // Update attempt counter
+      yield* Ref.update(buildCtxRef, (ctx) => ({ ...ctx, attempt: ctx.attempt + 1, shortfall: 0n }))
+
+      // sendAll is always a simple payment transaction (no scripts)
+      // All script operations (collectFrom, mint, staking, governance) are blocked above
+      return { next: "changeCreation" as const }
+    }
+
+    // === Normal Selection Mode ===
     const inputAssets = state.totalInputAssets
     const outputAssets = state.totalOutputAssets
 
diff --git a/packages/evolution/test/TxBuilder.SendAll.test.ts b/packages/evolution/test/TxBuilder.SendAll.test.ts
new file mode 100644
index 00000000..5241e7ca
--- /dev/null
+++ b/packages/evolution/test/TxBuilder.SendAll.test.ts
@@ -0,0 +1,227 @@
+import { describe, expect, it } from "@effect/vitest"
+
+import * as Address from "../src/Address.js"
+import * as CoreAssets from "../src/Assets/index.js"
+import type { TxBuilderConfig } from "../src/sdk/builders/TransactionBuilder.js"
+import { makeTxBuilder } from "../src/sdk/builders/TransactionBuilder.js"
+import type * as CoreUTxO from "../src/UTxO.js"
+import { createCoreTestUtxo } from "./utils/utxo-helpers.js"
+
+const PROTOCOL_PARAMS = {
+  minFeeCoefficient: 44n,
+  minFeeConstant: 155_381n,
+  coinsPerUtxoByte: 4_310n,
+  maxTxSize: 16_384
+}
+
+const SOURCE_ADDRESS =
+  "addr_test1qz2fxv2umyhttkxyxp8x0dlpdt3k6cwng5pxj3jhsydzer3n0d3vllmyqwsx5wktcd8cc3sq835lu7drv2xwl2wywfgs68faae"
+const DESTINATION_ADDRESS =
+  "addr_test1qpw0djgj0x59ngrjvqthn7enhvruxnsavsw5th63la3mjel3tkc974sr23jmlzgq5zda4gtv8k9cy38756r9y3qgmkqqjz6aa7"
+
+// Policy IDs for test tokens (56 hex chars)
+const FUNGIBLE_POLICY = "a".repeat(56)
+const NFT_POLICY = "c".repeat(56)
+
+// Asset name in hex
+const HOSKY_NAME_HEX = "484f534b59" // "HOSKY" in hex
+const NFT_NAME_HEX = "4e4654303031" // "NFT001" in hex
+
+const baseConfig: TxBuilderConfig = {}
+
+describe("TxBuilder SendAll", () => {
+  describe("Basic SendAll Operation", () => {
+    it("should send all ADA from wallet to recipient", async () => {
+      const utxos: Array<CoreUTxO.UTxO> = [
+        createCoreTestUtxo({
+          transactionId: "a".repeat(64),
+          index: 0,
+          address: SOURCE_ADDRESS,
+          lovelace: 200_000_000n
+        }),
+        createCoreTestUtxo({
+          transactionId: "b".repeat(64),
+          index: 0,
+          address: SOURCE_ADDRESS,
+          lovelace: 150_000_000n
+        })
+      ]
+      const totalLovelace = 350_000_000n
+
+      const signBuilder = await makeTxBuilder(baseConfig)
+        .sendAll({ to: Address.fromBech32(DESTINATION_ADDRESS) })
+        .build({
+          changeAddress: Address.fromBech32(SOURCE_ADDRESS),
+          availableUtxos: utxos,
+          protocolParameters: PROTOCOL_PARAMS
+        })
+
+      const tx = await signBuilder.toTransaction()
+
+      // Should have all UTxOs as inputs
+      expect(tx.body.inputs.length).toBe(2)
+
+      // Should have exactly one output (to recipient)
+      expect(tx.body.outputs.length).toBe(1)
+      expect(Address.toBech32(tx.body.outputs[0].address)).toBe(DESTINATION_ADDRESS)
+
+      // Output should contain total ADA minus fee
+      const outputLovelace = tx.body.outputs[0].assets.lovelace
+      const fee = tx.body.fee
+      expect(outputLovelace + fee).toBe(totalLovelace)
+    })
+
+    it("should send all assets including tokens from multi-asset wallet", async () => {
+      // Unit format: policyId + assetNameHex (no separator)
+      const hoskyUnit = `${FUNGIBLE_POLICY}${HOSKY_NAME_HEX}`
+      const nftUnit = `${NFT_POLICY}${NFT_NAME_HEX}`
+
+      const utxos: Array<CoreUTxO.UTxO> = [
+        createCoreTestUtxo({
+          transactionId: "1".repeat(64),
+          index: 0,
+          address: SOURCE_ADDRESS,
+          lovelace: 100_000_000n,
+          nativeAssets: { [hoskyUnit]: 500_000n }
+        }),
+        createCoreTestUtxo({
+          transactionId: "2".repeat(64),
+          index: 0,
+          address: SOURCE_ADDRESS,
+          lovelace: 50_000_000n,
+          nativeAssets: { [nftUnit]: 1n }
+        }),
+        createCoreTestUtxo({
+          transactionId: "3".repeat(64),
+          index: 0,
+          address: SOURCE_ADDRESS,
+          lovelace: 25_000_000n
+        })
+      ]
+      const totalLovelace = 175_000_000n
+
+      const signBuilder = await makeTxBuilder(baseConfig)
+        .sendAll({ to: Address.fromBech32(DESTINATION_ADDRESS) })
+        .build({
+          changeAddress: Address.fromBech32(SOURCE_ADDRESS),
+          availableUtxos: utxos,
+          protocolParameters: PROTOCOL_PARAMS
+        })
+
+      const tx = await signBuilder.toTransaction()
+
+      // Should have all UTxOs as inputs
+      expect(tx.body.inputs.length).toBe(3)
+
+      // Should have exactly one output
+      expect(tx.body.outputs.length).toBe(1)
+
+      const output = tx.body.outputs[0]
+      expect(Address.toBech32(output.address)).toBe(DESTINATION_ADDRESS)
+
+      // Output should contain all tokens
+      expect(CoreAssets.getByUnit(output.assets, hoskyUnit)).toBe(500_000n)
+      expect(CoreAssets.getByUnit(output.assets, nftUnit)).toBe(1n)
+
+      // Output should contain total ADA minus fee
+      const outputLovelace = output.assets.lovelace
+      const fee = tx.body.fee
+      expect(outputLovelace + fee).toBe(totalLovelace)
+    })
+  })
+
+  describe("Mutual Exclusivity Validation", () => {
+    it("should fail when used with payToAddress", async () => {
+      const utxos: Array<CoreUTxO.UTxO> = [
+        createCoreTestUtxo({
+          transactionId: "a".repeat(64),
+          index: 0,
+          address: SOURCE_ADDRESS,
+          lovelace: 100_000_000n
+        })
+      ]
+
+      await expect(
+        makeTxBuilder(baseConfig)
+          .payToAddress({
+            address: Address.fromBech32(DESTINATION_ADDRESS),
+            assets: CoreAssets.fromLovelace(1_000_000n)
+          })
+          .sendAll({ to: Address.fromBech32(DESTINATION_ADDRESS) })
+          .build({
+            changeAddress: Address.fromBech32(SOURCE_ADDRESS),
+            availableUtxos: utxos,
+            protocolParameters: PROTOCOL_PARAMS
+          })
+      ).rejects.toThrow("sendAll() cannot be used with payToAddress()")
+    })
+
+    it("should fail when used with collectFrom", async () => {
+      const utxos: Array<CoreUTxO.UTxO> = [
+        createCoreTestUtxo({
+          transactionId: "a".repeat(64),
+          index: 0,
+          address: SOURCE_ADDRESS,
+          lovelace: 100_000_000n
+        })
+      ]
+
+      await expect(
+        makeTxBuilder(baseConfig)
+          .collectFrom({ inputs: [utxos[0]] })
+          .sendAll({ to: Address.fromBech32(DESTINATION_ADDRESS) })
+          .build({
+            changeAddress: Address.fromBech32(SOURCE_ADDRESS),
+            availableUtxos: utxos,
+            protocolParameters: PROTOCOL_PARAMS
+          })
+      ).rejects.toThrow("sendAll() cannot be used with collectFrom()")
+    })
+  })
+
+  describe("Insufficient Funds Handling", () => {
+    it("should fail when wallet is empty", async () => {
+      await expect(
+        makeTxBuilder(baseConfig)
+          .sendAll({ to: Address.fromBech32(DESTINATION_ADDRESS) })
+          .build({
+            changeAddress: Address.fromBech32(SOURCE_ADDRESS),
+            availableUtxos: [],
+            protocolParameters: PROTOCOL_PARAMS
+          })
+      ).rejects.toThrow("sendAll() failed: Wallet has no UTxOs to send.")
+    })
+  })
+
+  describe("Fee Calculation", () => {
+    it("should calculate fee correctly based on transaction size", async () => {
+      const utxos: Array<CoreUTxO.UTxO> = [
+        createCoreTestUtxo({
+          transactionId: "a".repeat(64),
+          index: 0,
+          address: SOURCE_ADDRESS,
+          lovelace: 200_000_000n
+        }),
+        createCoreTestUtxo({
+          transactionId: "b".repeat(64),
+          index: 0,
+          address: SOURCE_ADDRESS,
+          lovelace: 150_000_000n
+        })
+      ]
+
+      const signBuilder = await makeTxBuilder(baseConfig)
+        .sendAll({ to: Address.fromBech32(DESTINATION_ADDRESS) })
+        .build({
+          changeAddress: Address.fromBech32(SOURCE_ADDRESS),
+          availableUtxos: utxos,
+          protocolParameters: PROTOCOL_PARAMS
+        })
+
+      const tx = await signBuilder.toTransaction()
+
+      // Fee is deterministic for a 2-input, 1-output transaction
+      expect(tx.body.fee).toBe(166_865n)
+    })
+  })
+})