Qatar IBAN validator
How the IBAN format works
- Format
- QA + 2 check digits + 4-letter bank code + 21-char account number (29 chars)
- Example
- QA58DOHB00001234567890ABCDEFG
Things to watch for
- 29 characters total
- Checks structure and checksum only, not that the account exists
^QA[0-9]{2}[A-Z]{4}[0-9A-Z]{21}$A Qatar IBAN runs 29 characters — among the longest IBANs in use anywhere — built from “QA”, two check digits, a 4-letter bank code, and a 21-character account-number block that can hold both digits and letters. That 21-character account segment is the main reason the number is so long: it’s wide enough to encode branch, account type, and account-number detail in a single block, well beyond what a European domestic account number typically needs. Anyone remitting funds to Qatar, invoicing a Qatari counterparty, or completing an international transfer form that asks for an IBAN rather than a local account number needs every one of those 29 characters right.
How this validator works
The check confirms the “QA” prefix, verifies the bank-code block is exactly 4 letters and the account block is exactly 21 alphanumeric characters, then runs the real mod-97 checksum (ISO 7064) used to generate valid Qatari IBANs. Everything happens locally in your browser; nothing is transmitted anywhere and there’s no signup. Because the account block is both long and alphanumeric, it’s the segment most likely to hide a single mistyped character — which is precisely what the checksum step is designed to surface.
What a pass doesn’t tell you
Passing this check only tells you the IBAN is correctly formed and internally consistent — not that the underlying account is open, active, or belongs to the person or business you expect. This tool performs no bank-name resolution against the 4-letter code and never contacts Qatar Central Bank or any clearing system. If a Qatar IBAN you’ve been given fails, re-check the 21-character account block character by character against the original source before assuming the whole number is wrong.
Scope: Qatar IBAN structure and mod-97 checksum validation only — not payment processing, bank verification, or confirmation that an account is active. This catches typos before a transfer fails; your bank confirms the account itself.
Content last reviewed 2026-07-09.
IBAN FAQ
Why is a Qatari IBAN so much longer than a UK or German one?
At 29 characters, a Qatar IBAN carries a 21-character alphanumeric account-number block after its 4-letter bank code — nearly three times the account-block width of a UK IBAN, which is a big part of why it runs so much longer overall.
What do the four letters after the check digits mean?
They're the bank code — the same identifier your bank uses in SWIFT/BIC messaging, immediately followed by a 21-character account number. Example: QA58DOHB00001234567890ABCDEFG, where DOHB is the bank code.
Can this tool confirm my Qatar IBAN belongs to a real, open account?
No. It checks structure and the mod-97 checksum only. Confirming an account is active or matches a specific payee requires your bank or Qatar Central Bank — this validator never contacts either.