Liechtenstein IBAN validator
How the IBAN format works
- Format
- LI + 2 check digits + 5-digit bank code + 12-char account number (21 chars)
- Example
- LI21088100002324013AA
Things to watch for
- 21 characters total
- Checks structure and checksum only, not that the account exists
^LI[0-9]{2}[0-9]{5}[0-9A-Z]{12}$A Liechtenstein IBAN is 21 characters: “LI”, two check digits, a 5-digit bank code, and a 12-character alphanumeric account number. Liechtenstein is a microstate that uses the Swiss franc and leans on Swiss-adjacent banking infrastructure, but it runs its own financial regulator and its own IBAN country code — “LI” is entirely distinct from Switzerland’s “CH”, even though the two formats share the same character count and bank-code length by coincidence of how each country’s numbering evolved. Given how much private and wealth-management banking the country handles relative to its population, getting the bank code and account block right matters as much for a small transfer as a large one.
How this validator works
This tool confirms the “LI” prefix, checks that the bank-code block is exactly 5 digits and the account block is 12 alphanumeric characters, then runs the mod-97 (ISO 7064) checksum every correctly generated Liechtenstein IBAN satisfies — entirely client-side, with nothing sent to a server and no signup involved.
What a pass doesn’t tell you
A pass means the 21 characters are structurally sound and internally consistent, not that the account is open or belongs to a specific person or entity. This validator has no connection to any Liechtenstein bank and performs no name-matching or existence lookup — those checks sit with the bank itself. If a Liechtenstein IBAN fails here, look first at whether the bank code and the start of the account number were split in the wrong place, since the boundary between the two blocks is easy to miscount by hand.
Scope: Liechtenstein IBAN structure and mod-97 checksum validation only — not account-holder verification or payment processing. Use it to catch a formatting error before you send funds, not to confirm who’s on the other end.
Content last reviewed 2026-07-09.
IBAN FAQ
What does a Liechtenstein IBAN look like?
21 characters: 'LI', two check digits, a 5-digit bank code, and a 12-character account number that can include letters — for example LI21088100002324013AA. That's the same total length as a Swiss IBAN, since both countries built their formats around a matching structure.
Why is Liechtenstein's IBAN the same length as Switzerland's?
Liechtenstein uses the Swiss franc and its banks clear payments through the same regional infrastructure Swiss banks use, so the two countries independently arrived at a 21-character, 5-digit-bank-code format — they're separate national IBANs with separate country codes, not a shared one.
Does a successful check confirm the account belongs to who I think?
No. This is a structure and checksum check only — it confirms the 21 characters are well-formed and pass mod-97, nothing more. It doesn't contact any Liechtenstein bank or verify the account holder's name, which is worth double-checking directly given the country's private-banking sector.