What causes "Invalid Characters in IBAN"?

Lowercase letters in the IBAN. Special characters like hyphens or slashes. Spaces not removed before validation. Accented or unicode characters

How do I fix "Invalid Characters in IBAN"?

Remove all spaces and special characters. Convert lowercase to uppercase letters. Only use A-Z letters and 0-9 digits. Re-enter the IBAN without formatting

Invalid Characters in IBAN

The IBAN contains characters that are not allowed. IBANs can only contain uppercase letters (A-Z) and digits (0-9).

Common Causes

Lowercase letters in the IBAN
Special characters like hyphens or slashes
Spaces not removed before validation
Accented or unicode characters

How to Fix It

1 Remove all spaces and special characters
2 Convert lowercase to uppercase letters
3 Only use A-Z letters and 0-9 digits
4 Re-enter the IBAN without formatting

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Other IBAN Errors

Invalid IBAN Checksum Wrong IBAN Length Invalid Country Code Invalid Bank Code IBAN Rejected by Bank