RS · ISO 13616

Serbia IBAN — format, length, example & validator

IBANs issued in Serbia are 22 characters long and begin with the country code RS. Validate a Serbia IBAN below, or read on for the full structure, an example, and how the MOD 97 check digits work.

Valid RS IBAN — passes all checks

Free · client-side · no data uploaded

Country code
RS
Total length
22 chars
Check-digit algo
MOD 97-10
ISO 13616 pattern
3!n13!n2!n
3 digits (digits (0–9)), then 13 digits (digits (0–9)), then 2 digits (digits (0–9))

How a Serbia IBAN is structured

A Serbia IBAN is read left to right: a 2-letter ISO 3166 country code (RS), 2 MOD 97 check digits, then a 18-character BBAN. The BBAN is split into 3 fields: 3 digits, 13 digits, 2 digits.

Country code
ISO 3166 — Serbia
RS
Check digits
MOD 97-10 checksum
02
BBAN field 1
3 digits · digits (0–9)
012
BBAN field 2
13 digits · digits (0–9)
0123456789012
BBAN field 3
2 digits · digits (0–9)
01

Serbia IBAN example

A sample Serbia IBAN that passes all checks (format, length, MOD 97):

Formatted
RS02 0120 1234 5678 9012 01
RS02012012345678901201

How Serbia IBAN check digits work

The two digits at positions 3–4 are a MOD 97-10 checksum computed from the country code and the BBAN. To verify it, the IBAN is rearranged (BBAN first, country code and check digits last), letters are converted to numbers (A = 10, B = 11, …), and the whole integer is taken mod 97. A valid IBAN has a remainder of 1. This catches any single-digit typo and most transposition errors — which is why a one-character mistake is enough to make a Serbia IBAN fail validation instantly.

Serbia IBAN FAQ

How long is a Serbia IBAN?
A Serbia IBAN is always 22 characters long: 2 letters for the country code (RS), 2 check digits, and a 18-character BBAN. Any Serbia IBAN that is shorter or longer than 22 characters is invalid.
What country code does a Serbia IBAN start with?
A Serbia IBAN starts with the ISO 3166 country code RS. The first two characters are always RS, followed by two MOD 97 check digits, then the country-specific BBAN.
How do I validate a Serbia IBAN?
Paste the IBAN into the validator on this page — it checks the character set, the 22-character length, and the MOD 97 check digits, all in your browser. You can also open the full IBAN validator with a Serbia example pre-filled.
Does a valid Serbia IBAN mean the account exists?
No. Validation only confirms the IBAN is structurally well-formed and the check digits are correct per ISO 13616. It does not verify the account exists, is open, or belongs to anyone. Always confirm with the recipient or their bank before sending money.
Serbia IBAN format →Serbia IBAN example →Open full validator

⚠️ Validation only checks structure and check digits against ISO 13616. A valid Serbia IBAN does not guarantee the account exists or is open. Always confirm with the recipient or their bank before initiating a transfer.