Do I need an ITIN to file Form W-8BEN?

An ITIN is required on Form W-8BEN whenever the form claims treaty benefits or certain types of US-source income. Without an ITIN, the form is incomplete for treaty purposes, and the US payer must default to 30 percent withholding. The ITIN goes on line 5 of Form W-8BEN.

How long is a Form W-8BEN valid?

Form W-8BEN is valid for the calendar year signed plus the next three full calendar years. After that, the non-resident must submit a new W-8BEN. The form also becomes invalid sooner if any information changes - country of residence, treaty status, or ITIN expiration.

Can I use Form W-8BEN as a business?

No. Form W-8BEN is for individuals only. Foreign businesses and entities use Form W-8BEN-E. Sole proprietors generally use the individual W-8BEN; LLCs and corporations use W-8BEN-E. The forms differ significantly in length and complexity.

Where do I submit Form W-8BEN?

Form W-8BEN is given to the US withholding agent - the broker, bank, employer, publisher, or other party making the payment. The withholding agent retains the form. Do not mail Form W-8BEN to the IRS unless specifically instructed to do so.

Updated June 25, 2026

ITIN and Form W-8BEN: Claiming Treaty Benefits as a Non-Resident

Why Do Non-Residents Need to File Form W-8BEN?

US payers (brokers, employers, publishers, royalty payers) are required by law to withhold tax on payments to non-residents. Without a Form W-8BEN, the payer must apply the default 30 percent rate. The W-8BEN tells the payer two things: (1) the recipient is foreign and (2) the recipient qualifies for a specific treaty benefit that lowers the rate.

Non-residents working with US-source income should see the ITIN for non-residents guide for the broader compliance picture.

What Does Each Part of Form W-8BEN Require?

Part	What to Enter
Part I: Identification of Beneficial Owner	Name, country of citizenship, permanent residence, mailing address, ITIN on line 5, foreign tax ID, date of birth
Part II: Claim of Tax Treaty Benefits	Country of treaty residence, article number, withholding rate claimed, type of income, reason for qualifying
Part III: Certification	Signature in wet or digital ink, date, capacity in which acting (if different from individual)

How Do You Complete Line 5 With Your ITIN?

Locate line 5of Form W-8BEN, labeled "U.S. taxpayer identification number (SSN or ITIN), if required."
Enter your 9-digit ITIN in the format 9XX-XX-XXXX.
Verify the ITIN is active. An expired ITIN voids the form for treaty purposes.
Match the name on line 1 exactly to the IRS assignment letter (CP565).
Sign and date Part III in wet ink or with a valid digital signature accepted by the payer.

What Common Mistakes Should You Avoid on Form W-8BEN?

Missing ITIN. Form is incomplete for treaty claims; payer applies 30 percent.
Wrong treaty article. Confirm the specific article (e.g., Article 10 for dividends).
Country mismatch. Country of citizenship and country of tax residence may differ; both must be accurate.
Stale form. Form expired after three years; payer reverts to 30 percent withholding.
Using W-8BEN-E instead of W-8BEN. Individuals use W-8BEN; entities use W-8BEN-E.

How Does Form W-8BEN Connect to Withholding Tax Reduction?

Form W-8BEN is the operational mechanism for treaty benefits. The treaty is the law; the W-8BEN is how the non-resident invokes it. The ITIN is the identifier that ties the W-8BEN to a real taxpayer the IRS can audit if needed. For the broader system, see the withholding tax page and the tax treaty guide.

When Does Form W-8BEN Need to Be Renewed?

Form W-8BEN remains valid through December 31 of the third calendar year after signing. Most US brokers send renewal prompts in the fourth quarter of the expiring year. Non-residents who change country of residence, lose treaty eligibility, or whose ITIN expires must submit a new W-8BEN immediately.

Frequently Asked Questions

Form W-8BEN is the IRS certificate non-resident individuals provide to US payers to certify their foreign status and, when applicable, claim tax treaty benefits. The form is not filed with the IRS directly. It is given to the US withholding agent (broker, employer, publisher) who keeps it on file and applies the reduced rate.

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