> ## 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.

# Netherlands

> What Coverbase asks a supplier in the Netherlands 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 the Netherlands 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      | Optional    | up to 60 characters                                               |                                                                   |
| Bank code      | Optional    | no length limit, digits only                                      |                                                                   |
| Branch code    | Optional    | no length limit, digits only                                      |                                                                   |
| Account number | Required    | up to 10 characters, letters and digits, Dutch eleven-proof check |                                                                   |
| 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

An IBAN is required for the Netherlands. It is 18 characters and is checked against the ISO 7064 MOD-97 algorithm, which catches a mistyped or transposed digit before the details reach your finance system.

## Tax and company registrations

| Registration | Requirement | Format                                                    | Notes     |
| ------------ | ----------- | --------------------------------------------------------- | --------- |
| KvK number   | Required    | 8 characters, digits only                                 | 8 digits. |
| BTW-id       | Suggested   | 14 characters, letters and digits, Dutch VAT MOD-97 check |           |

After a registration is saved, Coverbase checks it against the EU VIES service in the background. That check never blocks the supplier: it annotates the record once it completes, and a reviewer can retry it.

## Country rules

* Postal codes are checked against the national format. A postal code that does not match produces a warning, not a rejection.

## Where these rules come from

Oracle Fusion Cash Management 26c NL validations.

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>