1. Normalize the input
Spaces are removed and the representation is normalized.
🇸🇲 IBAN COUNTRY PROFILE · San Marino
Check an IBAN from San Marino and understand its structure
An IBAN for San Marino always contains 27 characters. After SM and two IBAN check digits, the national BBAN contains 5-character bank identifier, 5-character branch identifier, 12-character account part and 1-character national check digit. The bank identifier is checked against the available bank directory; where available, the result also includes the institution, city and BIC.
27 charactersFixed total length
23 charactersNational BBAN
SMISO country code
Structure of an IBAN from San Marino
The reference example SM84 N030 3409 8000 0000 0270 100 shows the country-specific components. It is provided for explanation only and is not a request to make a payment.
SM 84 N 03034 09800 000000270100
SMCountry code
84IBAN check digits
NNational check digit
03034Bank identifier
09800Branch identifier
000000270100Account part
| Position | Length | Component | Format |
|---|---|---|---|
| 1–2 | 2 | Country code | Letters: SM |
| 3–4 | 2 | IBAN check digits | Digits |
| 5–5 | 1 | National check digit | Letters |
| 6–10 | 5 | Bank identifier | Digits |
| 11–15 | 5 | Branch identifier | Digits |
| 16–27 | 12 | Account part | Alphanumeric |
Validate an IBAN for San Marino
This validator accepts only IBANs from the selected country.
What IBAN-Test validates for San Marino
Validation covers normalization, country assignment, the fixed 27-character length, the country-specific segment structure and MOD-97. The bank identifier is also checked against the available bank directory. Account ownership and real-time account existence are not checked.
2. Country and structure
SM, the length and the segment sequence are checked.
3. MOD-97
The international checksum catches many typing errors.
4. Available depth
The bank identifier is checked and available bank details are returned.
| Validation step | Available | Details |
|---|---|---|
| Country, length and structure | Yes | SM, 27 characters; 5-character bank identifier, 5-character branch identifier, 12-character account part and 1-character national check digit. |
| MOD-97 checksum | Yes | Mathematical IBAN validation. |
| Known bank identifier | Yes | The bank identifier is checked against the available directory. |
| National account check | Yes | The national account checksum is validated using the country-specific method. |
| Bank details and BIC | Yes | Available institution details and BIC are returned from the directory. |
| IBAN name check | No | No comparison between an account holder’s name and the IBAN. |
| Account existence | No | No request is sent to the account-holding institution. |
Validate an IBAN from San Marino via API
The same validation is available through the REST API. The IBAN is sent in the request and is not placed in a public, indexable URL.
curl --get 'https://www.iban-test.eu/api/v2/iban/validate' \
--header 'Authorization: Bearer YOUR_API_TOKEN' \
--data-urlencode 'iban=SM84 N030 3409 8000 0000 0270 100'For this country, the response also checks the bank identifier against the available directory and returns bank details and BIC where published.
What a valid IBAN from San Marino does not prove
Formal validity is a strong signal against input errors, but it is not real-time confirmation of an account.
No existence confirmation
The account may be closed or unreachable.
No account-holder match
A person or company name is not compared with the IBAN.
No payment guarantee
A valid IBAN does not guarantee that a payment will be accepted.
Registry rules can change
Country formats may be updated when the official registry changes.
Privacy: The input is transmitted only for validation and is not placed in the page URL.