> ## 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.

# United States

> What Coverbase asks a supplier in the United States 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 United States 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                    |                                                                   |
| Routing Transit Number | Required    | 9 characters, digits only, ABA routing checksum | 9 digits, e.g. 076401251.                                         |
| Account number         | Required    | up to 17 characters                             |                                                                   |
| 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           | Required    | no length limit, one of: checking, savings      | Checking unless the bank issued the account as a savings account. |

### IBAN

An IBAN is optional for the United States. It is up to 34 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                      |
| ------------ | ----------- | ------------------------- | -------------------------- |
| EIN          | Required    | 9 characters, digits only | 9 digits, e.g. 12-3456789. |

After a registration is saved, Coverbase checks it against the IRS TIN matching 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 US validations; IRS EIN prefix list.

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>