diff --git a/packages/transaction-pay-controller/CHANGELOG.md b/packages/transaction-pay-controller/CHANGELOG.md
index 86b9cb40baa..904b34f0358 100644
--- a/packages/transaction-pay-controller/CHANGELOG.md
+++ b/packages/transaction-pay-controller/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- Fix relay quote `user` field for post-quote same-chain same-token transfers with an account override ([#9187](https://github.com/MetaMask/core/pull/9187))
+
 ## [23.10.0]
 
 ### Fixed
diff --git a/packages/transaction-pay-controller/src/strategy/relay/relay-quotes.test.ts b/packages/transaction-pay-controller/src/strategy/relay/relay-quotes.test.ts
index 2485154ce6d..f0342488b10 100644
--- a/packages/transaction-pay-controller/src/strategy/relay/relay-quotes.test.ts
+++ b/packages/transaction-pay-controller/src/strategy/relay/relay-quotes.test.ts
@@ -1411,6 +1411,45 @@ describe('Relay Quotes Utils', () => {
       expect(body.user).toBe(txParamsFrom);
     });
 
+    it('keeps user as from when same token and chain with accountOverride and isPostQuote', async () => {
+      const txParamsFrom = '0xOriginalSender000000000000000000000000' as Hex;
+      const accountOverride =
+        '0xOverrideAccount0000000000000000000000000' as Hex;
+      const tokenAddress = '0xTokenAddress00000000000000000000000000' as Hex;
+      const chainId = '0x89' as Hex;
+
+      successfulFetchMock.mockResolvedValue({
+        ok: true,
+        json: async () => QUOTE_MOCK,
+      } as never);
+
+      await getRelayQuotes({
+        accountSupports7702: true,
+        messenger,
+        requests: [
+          {
+            ...QUOTE_REQUEST_MOCK,
+            from: accountOverride,
+            isPostQuote: true,
+            sourceChainId: chainId,
+            sourceTokenAddress: tokenAddress,
+            targetChainId: chainId,
+            targetTokenAddress: tokenAddress,
+          },
+        ],
+        transaction: {
+          ...TRANSACTION_META_MOCK,
+          txParams: { from: txParamsFrom },
+        } as TransactionMeta,
+      });
+
+      const body = JSON.parse(
+        successfulFetchMock.mock.calls[0][1]?.body as string,
+      );
+
+      expect(body.user).toBe(accountOverride);
+    });
+
     it('keeps user as from when same token and chain with accountOverride but recipient differs', async () => {
       const txParamsFrom = '0xOriginalSender000000000000000000000000' as Hex;
       const accountOverride =
diff --git a/packages/transaction-pay-controller/src/strategy/relay/relay-quotes.ts b/packages/transaction-pay-controller/src/strategy/relay/relay-quotes.ts
index 48af7c57f3c..0f38149afa6 100644
--- a/packages/transaction-pay-controller/src/strategy/relay/relay-quotes.ts
+++ b/packages/transaction-pay-controller/src/strategy/relay/relay-quotes.ts
@@ -1221,7 +1221,8 @@ function getQuoteUser(
 
   return isSameSourceAndTarget &&
     hasAccountOverride &&
-    isRecipientAccountOverride
+    isRecipientAccountOverride &&
+    !request.isPostQuote
     ? txParamsFrom
     : from;
 }