diff --git a/src/app/actions/ibanToBic.ts b/src/app/actions/ibanToBic.ts
index bcfbde4d6..830182065 100644
--- a/src/app/actions/ibanToBic.ts
+++ b/src/app/actions/ibanToBic.ts
@@ -9,7 +9,7 @@ import { ibanToBic } from 'iban-to-bic'
  */
 export async function getBicFromIban(iban: string): Promise<string> {
     try {
-        return ibanToBic(iban)
+        return ibanToBic(iban.replace(/\s+/g, '').trim())
     } catch (err) {
         console.error('IBAN→BIC conversion failed', err)
         throw new Error('Unable to derive BIC from IBAN')