San Marino IBAN Validator & Format Checker
Validate and decode any San Marino International Bank Account Number (IBAN). Test the structure against the official format mask, check digits, and run an offline bank lookup.
San Marino IBAN Structure Rules
Every International Bank Account Number in San Marino follows a standardized format registry layout:
| Country Code | SM (San Marino) |
| Total Length | 27 characters |
| SEPA Member | Yes (SEPA Member) |
| Structure Format Mask | SM29 A123 4567 8901 2345 6789 012 |
| BBAN Regex Pattern | ^[A-Z]{1}[0-9]{10}[A-Z0-9]{12}$ |
| Branch Code Range | Characters 11 to 15 (5 digits) |
| Account Number Range | Characters 16 to 27 (12 digits) |
Frequently Asked Questions
How long is a San Marino IBAN?
A San Marino IBAN consists of exactly 27 characters. It starts with the country code 'SM', followed by two check digits, and then the Basic Bank Account Number (BBAN).
What is the format of a San Marino IBAN?
The official format mask for a San Marino IBAN is 'SM29 A123 4567 8901 2345 6789 012'. The BBAN component matches the structure pattern '^[A-Z]{1}[0-9]{10}[A-Z0-9]{12}{{FAQ_ACCORDION}}#039;.
Does San Marino participate in SEPA?
San Marino is a member of the Single Euro Payments Area (SEPA). Euro payments can be processed under SEPA rules.
How do I decode a San Marino IBAN?
A San Marino IBAN can be decoded into: the country code 'SM' (characters 1-2), check digits (characters 3-4), and the domestic bank account identifier containing the branch code (characters 11-15), and account number (characters 16-27).