diff --git a/src/app-gocardless/bank-factory.js b/src/app-gocardless/bank-factory.js
index aaa4f9304..d45879a2d 100644
--- a/src/app-gocardless/bank-factory.js
+++ b/src/app-gocardless/bank-factory.js
@@ -14,6 +14,7 @@ import IngIngbrobu from './banks/ing-ingbrobu.js';
 import IngIngddeff from './banks/ing-ingddeff.js';
 import IngPlIngbplpw from './banks/ing-pl-ingbplpw.js';
 import IntegrationBank from './banks/integration-bank.js';
+import IsyBankItbbitmm from './banks/isybank-itbbitmm.js';
 import KBCkredbebb from './banks/kbc_kredbebb.js';
 import MbankRetailBrexplpw from './banks/mbank-retail-brexplpw.js';
 import NationwideNaiaGB21 from './banks/nationwide-naiagb21.js';
@@ -46,6 +47,7 @@ export const banks = [
   IngIngbrobu,
   IngIngddeff,
   IngPlIngbplpw,
+  IsyBankItbbitmm,
   KBCkredbebb,
   MbankRetailBrexplpw,
   NationwideNaiaGB21,
diff --git a/src/app-gocardless/banks/isybank-itbbitmm.js b/src/app-gocardless/banks/isybank-itbbitmm.js
new file mode 100644
index 000000000..a6685ccae
--- /dev/null
+++ b/src/app-gocardless/banks/isybank-itbbitmm.js
@@ -0,0 +1,16 @@
+import Fallback from './integration-bank.js';
+
+/** @type {import('./bank.interface.js').IBank} */
+export default {
+  ...Fallback,
+
+  institutionIds: ['ISYBANK_ITBBITMM'],
+
+  // It has been reported that valueDate is more accurate than booking date
+  // when it is provided
+  normalizeTransaction(transaction, booked) {
+    transaction.bookingDate = transaction.valueDate ?? transaction.bookingDate;
+
+    return Fallback.normalizeTransaction(transaction, booked);
+  },
+};
diff --git a/upcoming-release-notes/510.md b/upcoming-release-notes/510.md
new file mode 100644
index 000000000..9f91704e4
--- /dev/null
+++ b/upcoming-release-notes/510.md
@@ -0,0 +1,6 @@
+---
+category: Enhancements
+authors: [matt-fidd]
+---
+
+GoCardless: `ISYBANK_ITBBITMM` should prefer valueDate over bookingDate