Our foreign vendor's W-8 expired before payment. Can we keep using last year's withholding treatment?

An expired W-8 cannot automatically support the same treatment indefinitely. Validity periods, changes in circumstances and specific certificate exceptions must be checked. Without reliable documentation, the payer may need to apply presumption rules and withholding rather than simply retaining the prior year's exemption.

A specific business-owner situation

A vendor's certificate supported treaty treatment, but the next payment arrives after its validity period. The accounts-payable system still marks the account exempt.

Illustrative example, not a client result.

What to establish before filing

1. Check the actual form type and validity rule.
2. Request renewed documentation and change confirmation.
3. Apply required treatment if documentation remains missing.

Which fact changes the answer?

Some documentation can remain valid under particular conditions, while a change in circumstances can invalidate a certificate sooner. The form and facts control.

A mistake to avoid

Do not treat every W-8 as having identical expiration rules.

Records that support the decision

• Prior and renewed certificates.
• Payment dates.
• Withholding decision record.

The decision to document

Resolve documentation before payment and record the withholding treatment used during any gap.

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Related questions

• We promised a foreign vendor a net payment. Who bears any U.S. withholding tax?
• A foreign supplier uses a U.S. bank account. Does that make it a U.S. payee for tax forms?

Sources and editorial context

• IRS Publication 515: foreign-person withholding

General educational information prepared with AI assistance. No individual professional review is claimed. Apply the relevant tax-year rules to the actual records. Editorial policy · AI disclosure.