> ## Documentation Index
> Fetch the complete documentation index at: https://docs.coverbase.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Nigeria

> What Coverbase asks a supplier in Nigeria for, and which of those rules block a submission.

[User guides](/user-guides/overview) / [Supplier countries](/user-guides/supplier-countries/overview)

A supplier whose bank account is held in Nigeria sees the fields below. The country is chosen on the form, and changing it changes the fields, so a supplier is never asked for a detail their country does not use.

## Bank details

| Field          | Requirement | Format                                        | Notes                                                             |
| -------------- | ----------- | --------------------------------------------- | ----------------------------------------------------------------- |
| Bank name      | Required    | up to 60 characters                           |                                                                   |
| Bank code      | Required    | 3 characters, digits only                     | 3-digit CBN institution code.                                     |
| Branch code    | Suggested   | 5 characters, digits only                     |                                                                   |
| Account number | Required    | 10 characters, digits only, NUBAN check digit | 10-digit NUBAN.                                                   |
| Check digit    | Optional    | no length limit, digits only                  |                                                                   |
| SWIFT/BIC      | Optional    | 8 to 11 characters, letters and digits        | 8 or 11 characters, e.g. BOFAUS3N. Needed for a payment by wire.  |
| Account type   | Optional    | no length limit, one of: checking, savings    | Checking unless the bank issued the account as a savings account. |

### IBAN

Nigeria does not use IBANs. Accounts are identified by the fields above.

## Tax and company registrations

| Registration | Requirement | Format             | Notes |
| ------------ | ----------- | ------------------ | ----- |
| TIN          | Suggested   | 8 to 17 characters |       |

## Where these rules come from

CBN NUBAN specification (weights 3,7,3 over bank code + serial).

The rules on this page are confirmed against a primary source, so they are enforced strictly.

Configuration version `2026.09.1`. Your organization can override any of these rules for its own suppliers.

## Related

<CardGroup cols={2}>
  <Card title="Supplier countries" icon="globe" href="/user-guides/supplier-countries/overview">
    Every country Coverbase validates, side by side.
  </Card>

  <Card title="Supplier information guide" icon="building-columns" href="/user-guides/supplier-information">
    How these details are collected, reviewed, and handed to your finance system.
  </Card>
</CardGroup>