Burundi IBAN validator

A Burundian IBAN is 27 characters, entirely numeric: “BI”, two check digits, a 5-digit bank code, a 5-digit branch code, an 11-digit account number, and 2 national check digits folded into the end. That four-segment, 27-character structure is shared exactly with neighboring Djibouti’s IBAN — same digit counts in the same order — even though the two countries sit on opposite sides of East Africa and don’t share a currency or a coastline. Burundi is landlocked, bordered by Rwanda, Tanzania, and the Democratic Republic of the Congo, and is a member of the East African Community; its currency, the Burundian franc, is issued through the Bank of the Republic of Burundi, which oversees the domestic system this IBAN format sits on top of. Getting all four segments right matters more here than in most formats, simply because there are more separate blocks to get wrong than in a typical two- or three-part IBAN.

How this validator works

This tool checks the “BI” prefix and confirms all 25 remaining characters are digits, split into a 5-digit bank code, 5-digit branch code, 11-digit account number, and 2 national check digits, then runs the mod-97 checksum (ISO 7064) — entirely in your browser, nothing sent to a server.

What a pass doesn’t tell you

A pass confirms the 27 digits are correctly structured and internally consistent — not that the account is open or belongs to whoever you expect. This tool does no lookup against the Bank of the Republic of Burundi or any commercial bank there. If a Burundian IBAN fails, verify the 5-digit bank and 5-digit branch codes first — two equal-length blocks next to each other are the easiest place to swap digits by accident.

Scope: Burundian IBAN structure and mod-97 checksum validation only — not payment processing or confirmation an account is active. Use it to catch a typo before a transfer fails.

Content last reviewed 2026-07-23.