Question 1

How long is a São Tomé and Príncipe IBAN?

Accepted Answer

A São Tomé and Príncipe IBAN is always exactly 25 characters. It starts with ST followed by 2 check digits, then a 21-character BBAN. Example: ST23000200000289355710148.

Question 2

What does a São Tomé and Príncipe IBAN look like?

Accepted Answer

A São Tomé and Príncipe IBAN has the structure: 2-letter country code (ST), 2 check digits, and a 21-character BBAN with structure 4n+4n+11n+2n. Full example: ST23000200000289355710148.

Question 3

Is São Tomé and Príncipe part of SEPA?

Accepted Answer

No, São Tomé and Príncipe is not a SEPA member. Transfers to São Tomé and Príncipe are international wire transfers and may incur additional fees and longer processing times.

Question 4

Why would a valid São Tomé and Príncipe IBAN be rejected?

Accepted Answer

A São Tomé and Príncipe IBAN can be rejected even if technically valid if the account is closed, the bank doesn't accept that transfer type, the IBAN isn't in the official registry, or regulatory restrictions apply. Our validator checks the official bank registry.

Question 5

How do I validate a São Tomé and Príncipe IBAN?

Accepted Answer

Validating a São Tomé and Príncipe IBAN involves 3 steps: 1) Format check (25 characters, structure 4n+4n+11n+2n); 2) MOD 97-10 checksum; 3) Official bank registry lookup. Use our free validator at https://bankvalidor.com/en/validate/st for instant, reliable verification.

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IBAN Format for São Tomé and Príncipe

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