diff --git a/kapital_bank/bank_api.py b/kapital_bank/bank_api.py
index b670053..b1eabe0 100644
--- a/kapital_bank/bank_api.py
+++ b/kapital_bank/bank_api.py
@@ -2124,8 +2124,9 @@ def _import_one_bank_transaction(txn_data, settings, voen_to_party, name_to_part
         }
 
     # Use the bank account's own currency to avoid mismatch errors in Frappe
-    ba_currency = frappe.db.get_value("Bank Account", bank_account, "account_currency") or currency
-    currency = ba_currency
+    gl_account = frappe.db.get_value("Bank Account", bank_account, "account")
+    if gl_account:
+        currency = frappe.db.get_value("Account", gl_account, "account_currency") or currency
 
     # Optional party mapping: VÖEN → name → None
     # C (credit, money in) → prefer Customer; D (debit, money out) → prefer Supplier