diff --git a/modules/abstract-utxo/src/abstractUtxoCoin.ts b/modules/abstract-utxo/src/abstractUtxoCoin.ts
index dccb1d666c..7eed62252e 100644
--- a/modules/abstract-utxo/src/abstractUtxoCoin.ts
+++ b/modules/abstract-utxo/src/abstractUtxoCoin.ts
@@ -55,7 +55,7 @@ import {
   v1Sweep,
   V1SweepParams,
 } from './recovery';
-import { isReplayProtectionUnspent } from './replayProtection';
+import { isReplayProtectionUnspent } from './transaction/fixedScript/replayProtection';
 import { supportedCrossChainRecoveries } from './config';
 import {
   assertValidTransactionRecipient,
diff --git a/modules/abstract-utxo/src/index.ts b/modules/abstract-utxo/src/index.ts
index 21e5287285..d045dd51e0 100644
--- a/modules/abstract-utxo/src/index.ts
+++ b/modules/abstract-utxo/src/index.ts
@@ -2,8 +2,8 @@ export * from './abstractUtxoCoin';
 export * from './address';
 export * from './config';
 export * from './recovery';
-export * from './replayProtection';
-export * from './sign';
+export * from './transaction/fixedScript/replayProtection';
+export * from './transaction/fixedScript/sign';
 
 export { UtxoWallet } from './wallet';
 export * as descriptor from './descriptor';
diff --git a/modules/abstract-utxo/src/recovery/backupKeyRecovery.ts b/modules/abstract-utxo/src/recovery/backupKeyRecovery.ts
index daaa2d0add..7a99b65760 100644
--- a/modules/abstract-utxo/src/recovery/backupKeyRecovery.ts
+++ b/modules/abstract-utxo/src/recovery/backupKeyRecovery.ts
@@ -16,7 +16,7 @@ import {
 import { getMainnet, networks } from '@bitgo/utxo-lib';
 
 import { AbstractUtxoCoin } from '../abstractUtxoCoin';
-import { signAndVerifyPsbt } from '../sign';
+import { signAndVerifyPsbt } from '../transaction/fixedScript/sign';
 import { generateAddressWithChainAndIndex } from '../address';
 
 import { forCoin, RecoveryProvider } from './RecoveryProvider';
diff --git a/modules/abstract-utxo/src/recovery/crossChainRecovery.ts b/modules/abstract-utxo/src/recovery/crossChainRecovery.ts
index a09eccebbc..957ca89a67 100644
--- a/modules/abstract-utxo/src/recovery/crossChainRecovery.ts
+++ b/modules/abstract-utxo/src/recovery/crossChainRecovery.ts
@@ -5,7 +5,7 @@ import { BitGoBase, IWallet, Keychain, Triple, Wallet } from '@bitgo/sdk-core';
 import { decrypt } from '@bitgo/sdk-api';
 
 import { AbstractUtxoCoin, TransactionInfo } from '../abstractUtxoCoin';
-import { signAndVerifyWalletTransaction } from '../sign';
+import { signAndVerifyWalletTransaction } from '../transaction/fixedScript/sign';
 
 const { unspentSum, scriptTypeForChain, outputScripts } = utxolib.bitgo;
 type RootWalletKeys = utxolib.bitgo.RootWalletKeys;
diff --git a/modules/abstract-utxo/src/transaction/explainTransaction.ts b/modules/abstract-utxo/src/transaction/explainTransaction.ts
index 18e083b5f1..57c3b0b14b 100644
--- a/modules/abstract-utxo/src/transaction/explainTransaction.ts
+++ b/modules/abstract-utxo/src/transaction/explainTransaction.ts
@@ -5,8 +5,8 @@ import { isTriple, IWallet, Triple } from '@bitgo/sdk-core';
 import { getDescriptorMapFromWallet, isDescriptorWallet } from '../descriptor';
 import { toBip32Triple } from '../keychains';
 import { getPolicyForEnv } from '../descriptor/validatePolicy';
-import { getReplayProtectionOutputScripts } from '../replayProtection';
 
+import { getReplayProtectionOutputScripts } from './fixedScript/replayProtection';
 import type {
   TransactionExplanationUtxolibLegacy,
   TransactionExplanationUtxolibPsbt,
diff --git a/modules/abstract-utxo/src/transaction/fixedScript/index.ts b/modules/abstract-utxo/src/transaction/fixedScript/index.ts
index a1290e62a2..a4a5348e7f 100644
--- a/modules/abstract-utxo/src/transaction/fixedScript/index.ts
+++ b/modules/abstract-utxo/src/transaction/fixedScript/index.ts
@@ -4,3 +4,5 @@ export { parseTransaction } from './parseTransaction';
 export { CustomChangeOptions } from './parseOutput';
 export { verifyTransaction } from './verifyTransaction';
 export { signTransaction } from './signTransaction';
+export * from './sign';
+export * from './replayProtection';
diff --git a/modules/abstract-utxo/src/replayProtection.ts b/modules/abstract-utxo/src/transaction/fixedScript/replayProtection.ts
similarity index 100%
rename from modules/abstract-utxo/src/replayProtection.ts
rename to modules/abstract-utxo/src/transaction/fixedScript/replayProtection.ts
diff --git a/modules/abstract-utxo/src/sign.ts b/modules/abstract-utxo/src/transaction/fixedScript/sign.ts
similarity index 93%
rename from modules/abstract-utxo/src/sign.ts
rename to modules/abstract-utxo/src/transaction/fixedScript/sign.ts
index e81a574821..ddba7bc73e 100644
--- a/modules/abstract-utxo/src/sign.ts
+++ b/modules/abstract-utxo/src/transaction/fixedScript/sign.ts
@@ -1,7 +1,7 @@
 import * as utxolib from '@bitgo/utxo-lib';
 import debugLib from 'debug';
 
-import { isReplayProtectionUnspent } from './replayProtection';
+import { getReplayProtectionAddresses } from './replayProtection';
 
 const debug = debugLib('bitgo:v2:utxo');
 
@@ -139,14 +139,24 @@ export function signAndVerifyPsbt(
  * @param unspents - transaction unspents
  * @param walletSigner - signing parameters
  * @param isLastSignature - Returns full-signed transaction when true. Builds half-signed when false.
+ * @param replayProtectionAddresses - List of replay protection addresses to skip signing
  */
 export function signAndVerifyWalletTransaction<TNumber extends number | bigint>(
   transaction: utxolib.bitgo.UtxoTransaction<TNumber> | utxolib.bitgo.UtxoTransactionBuilder<TNumber>,
   unspents: Unspent<TNumber>[],
   walletSigner: utxolib.bitgo.WalletUnspentSigner<RootWalletKeys>,
-  { isLastSignature }: { isLastSignature: boolean }
+  {
+    isLastSignature,
+    replayProtectionAddresses,
+  }: {
+    isLastSignature: boolean;
+    replayProtectionAddresses?: string[];
+  }
 ): utxolib.bitgo.UtxoTransaction<TNumber> {
   const network = transaction.network as utxolib.Network;
+  if (replayProtectionAddresses === undefined) {
+    replayProtectionAddresses = getReplayProtectionAddresses(network);
+  }
   const prevOutputs = unspents.map((u) => toOutput(u, network));
 
   let txBuilder: utxolib.bitgo.UtxoTransactionBuilder<TNumber>;
@@ -163,7 +173,7 @@ export function signAndVerifyWalletTransaction<TNumber extends number | bigint>(
 
   const signErrors: InputSigningError<TNumber>[] = unspents
     .map((unspent: Unspent<TNumber>, inputIndex: number) => {
-      if (isReplayProtectionUnspent<TNumber>(unspent, network)) {
+      if (replayProtectionAddresses.includes(unspent.address)) {
         debug('Skipping signature for input %d of %d (RP input?)', inputIndex + 1, unspents.length);
         return;
       }
@@ -184,7 +194,7 @@ export function signAndVerifyWalletTransaction<TNumber extends number | bigint>(
   const verifyErrors: InputSigningError<TNumber>[] = signedTransaction.ins
     .map((input, inputIndex) => {
       const unspent = unspents[inputIndex] as Unspent<TNumber>;
-      if (isReplayProtectionUnspent<TNumber>(unspent, network)) {
+      if (replayProtectionAddresses.includes(unspent.address)) {
         debug(
           'Skipping input signature %d of %d (unspent from replay protection address which is platform signed only)',
           inputIndex + 1,
diff --git a/modules/abstract-utxo/src/transaction/fixedScript/signTransaction.ts b/modules/abstract-utxo/src/transaction/fixedScript/signTransaction.ts
index 823fe68be8..27c6854a21 100644
--- a/modules/abstract-utxo/src/transaction/fixedScript/signTransaction.ts
+++ b/modules/abstract-utxo/src/transaction/fixedScript/signTransaction.ts
@@ -6,9 +6,10 @@ import { bitgo } from '@bitgo/utxo-lib';
 import * as utxolib from '@bitgo/utxo-lib';
 import { isTriple, Triple } from '@bitgo/sdk-core';
 
-import { signAndVerifyPsbt, signAndVerifyWalletTransaction } from '../../sign';
 import { AbstractUtxoCoin, DecodedTransaction, RootWalletKeys } from '../../abstractUtxoCoin';
 
+import { signAndVerifyPsbt, signAndVerifyWalletTransaction } from './sign';
+
 /**
  * Key Value: Unsigned tx id => PSBT
  * It is used to cache PSBTs with taproot key path (MuSig2) inputs during external express signer is activated.