Cyprus IBAN validator

A Cypriot IBAN is 28 characters long, one of the longest formats in this set: “CY”, two check digits, a 3-digit bank code, a 5-digit branch code, and a 16-character alphanumeric account number, written with no spaces in the form banking systems actually process. That extended 16-character account block is what pushes the total length well past shorter formats like Belgium’s 16-character IBAN — Cyprus needs nearly double the characters just to encode the account number itself. Anyone paying a Cypriot business, receiving rental income from a Cyprus-based property, or completing an international transfer form that asks for an IBAN rather than local account details needs all 28 characters correct and in order.

How this validator works

This tool checks the “CY” prefix, confirms the bank code block is 3 digits, the branch code block is 5 digits, and the account block is 16 alphanumeric characters, then runs the real mod-97 checksum (ISO 7064) Cypriot banks use to generate a valid IBAN — entirely client-side in your browser, no signup, nothing sent to a server.

What a pass doesn’t tell you

A pass confirms the IBAN is correctly formed and internally consistent — not that the account exists, is active, or belongs to the person you expect. This tool does no lookup from the bank or branch code to an institution name and never contacts any bank or clearing system. With 28 characters to copy correctly, the most common failure is a single transposed or dropped character somewhere in the long account block — worth re-checking character by character against the original source before assuming the IBAN itself is invalid.

Scope: Cypriot IBAN structure and mod-97 checksum validation only — not payment processing, bank-name resolution, or confirming an account is active, none of which a client-side check can establish. Use this validator to catch a typo before a transfer fails; use your bank to confirm the account itself.

Content last reviewed 2026-07-07.