Seychelles IBAN validator

A Seychelles IBAN is 31 characters: “SC”, two check digits, a 4-letter bank code, 20 digits covering branch and account, and a 3-letter currency code at the end — USD in the example SC18SSCB11010000000000001497USD. It’s the same basic design as neighboring Mauritius’s IBAN — a letter bank code, a numeric branch/account block, and a trailing currency suffix for multi-currency accounts — but Seychelles’ combined branch/account block runs one digit longer at 20 digits against Mauritius’s 19, pushing the total length to 31 characters instead of 30. Like Mauritius, Seychelles built its banking sector around international and offshore financial services, so accounts denominated in US dollars or euros alongside the Seychellois rupee are common enough that the currency suffix earns its place in the IBAN itself. The Central Bank of Seychelles oversees the system domestically.

How this validator works

This tool checks the “SC” prefix, confirms the bank code is 4 letters, the combined branch/account block is exactly 20 digits, and the trailing currency code is 3 letters, then runs the mod-97 checksum (ISO 7064) a correctly generated Seychelles IBAN must satisfy — entirely in your browser, with nothing sent to a server.

What a pass doesn’t tell you

A pass confirms the 31 characters are correctly structured and internally consistent — not that the account is open, active, or belongs to whoever you expect. This tool does no lookup against the Central Bank of Seychelles or any commercial bank there. If a Seychelles IBAN fails, recount the 20-digit branch/account block carefully — at one digit longer than Mauritius’s equivalent block, it’s an easy place to drop a character without noticing.

Scope: Seychelles IBAN structure and mod-97 checksum validation only — not payment processing or confirmation an account is active. Use it to catch a typo before a transfer fails.

Content last reviewed 2026-07-23.