diff --git a/src/features/transactions/components/dialogs/transaction-dialog/transaction-dialog.tsx b/src/features/transactions/components/dialogs/transaction-dialog/transaction-dialog.tsx
index dab8cc9..5ef8127 100644
--- a/src/features/transactions/components/dialogs/transaction-dialog/transaction-dialog.tsx
+++ b/src/features/transactions/components/dialogs/transaction-dialog/transaction-dialog.tsx
@@ -116,8 +116,9 @@ export function TransactionDialog({
 				},
 			);
 
-			// Derive credit card period on open when cardId is pre-filled
+			// Derive credit card period on open when cardId is pre-filled (create only)
 			if (
+				mode !== "update" &&
 				initial.paymentMethod === "Cartão de crédito" &&
 				initial.cardId &&
 				initial.purchaseDate