Saint Lucia IBAN validator

A Saint Lucia IBAN is 32 characters: “LC”, two check digits, a 4-letter bank code, and a 24-character alphanumeric account number — making it one of the longest IBAN formats covered on this site, well past the 20-something-character length typical of most European IBANs. That length comes almost entirely from the account block itself, which is more than double the size of a German or French account number. Saint Lucia’s banking system sits under the Eastern Caribbean Central Bank, a regional authority that also regulates banks across several neighboring island nations sharing the Eastern Caribbean dollar — yet each of those territories, Saint Lucia included, issues IBANs under its own two-letter country prefix rather than a shared one, so an “LC” IBAN specifically identifies a Saint Lucian account even though the currency and central bank extend well beyond the island.

How this validator works

This tool checks the “LC” prefix, confirms the bank code is exactly 4 letters, and confirms the account number is exactly 24 alphanumeric characters, then runs the mod-97 checksum (ISO 7064) a correctly generated Saint Lucia IBAN must satisfy — entirely in your browser, with nothing sent to a server.

What a pass doesn’t tell you

A pass confirms the 32 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 Eastern Caribbean Central Bank or any Saint Lucian bank. If a Saint Lucia IBAN fails, work through the 24-character account block in short groups rather than all at once — a single dropped or transposed character is easy to lose in a string that long.

Scope: Saint Lucia 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.