SEPA coverage · 🇧🇬 BG
Convert Bulgaria IBANs to their BIC
Every Bulgaria IBAN is 22 characters long and starts with BG. The bank identifier embedded inside it is what resolves to a BIC/SWIFT code, the bank's name and address, and its SEPA reachability.
The Bulgaria IBAN format
Example of a valid Bulgaria IBAN:
BG80 BNBG 9661 1020 3456 78
| Segment | Length | Example | Meaning |
|---|---|---|---|
| Country code | 2 | BG | Always BG |
| Check digits | 2 | 80 | ISO 7064 mod-97 checksum over the whole IBAN |
| Bank code (BIC prefix) | 4 | BNBG | First four letters of the bank’s BIC |
| Branch code | 4 | 9661 | Numeric code identifying the branch |
| Account type | 2 | 10 | Numeric account type indicator |
| Account number | 8 | 20345678 | Alphanumeric account identifier |
Bulgarian IBANs start the BBAN with the first four letters of the bank’s own BIC, which makes the institution directly readable from the IBAN. Bulgaria adopted the euro on 1 January 2026.
How to get the BIC from a Bulgaria IBAN
Validate the IBAN
Check the length (exactly 22 characters for BG) and the ISO 7064 mod-97 checksum. Both are local computations — no lookup needed yet.
Extract the bank identifier
The bank code (bic prefix) (4 characters) inside the BBAN identifies the institution holding the account.
Resolve it to a BIC
Map the bank identifier to the institution's BIC via registry data — or send the IBAN to the API and get BIC, bank details and SEPA flags in one response.
Resolve it with one API call
Send the IBAN to POST /v1/convert and get back the BIC, bank details and the four SEPA reachability flags. Invalid and not-found lookups are always free.
curl https://api.iban2bic.com/v1/convert \
-H "Authorization: Bearer ibk_live_xxx" \
-H "Content-Type: application/json" \
-d '{ "iban": "BG80BNBG96611020345678" }'Bulgaria IBAN — frequently asked
Other SEPA countries
Keep reading
Resolve Bulgaria IBANs programmatically
BIC, bank details and SEPA reachability for any BG IBAN — €0.009 per successful call, failures always free.