Form W-8 BEN is an Internal Revenue Service (IRS) tax form that non-US individuals use to certify their foreign status when they receive certain types of US-sourced income. It allows payers to apply the correct withholding tax rate and, if eligible, reduce withholding under an income tax treaty between the US and the individual's country of residence.

Without a valid Form W-8 BEN on file, a payer might be required to withhold tax at the default statutory rate. For foreign contractors, investors, and other non-US payees, submitting this form ensures proper tax treatment and compliance with US regulations.

Below, we’ll explain what Form W-8 BEN is, who needs to file it, how it works, and how businesses can manage W-8 BEN documentation efficiently.

What’s in this article?

• What is Form W-8 BEN?
  
• W-8 BEN vs. W-9 vs. W-8 BEN-E
  
• Types of W-8 forms
  
• Who needs to file a W-8 form?
  
• Common W-8 BEN mistakes to avoid
  
• Manage W-8 BEN collection and withholding compliance with Stripe
  

What is Form W-8 BEN?

Form W-8 BEN is a US tax form used to certify that a person is a non-US resident and is the beneficial owner of income received from a US source. It establishes eligibility for a reduced rate of, or exemption from, US withholding tax under an applicable tax treaty. The form is completed by foreign individuals—not entities—who earn US-sourced income (e.g., dividends, interest, royalties).

IRS revisions can change. Always reference the current revision.

W-8 BEN vs. W-9 vs. W-8 BEN-E

Here’s how these three forms compare.

Form W-8 BEN

Non-US individuals use Form W-8 BEN to certify their foreign status and claim any applicable tax treaty benefits on US-sourced income. Foreign freelancers, investors, and contractors typically submit this form to their US-based payers before they receive payment.

Form W-9

US individuals—including citizens, non-US residents, and domestic businesses—use Form W-9 to provide their taxpayer identification numbers (TINs) to payers. Payers use the information on this form to report income to the IRS and determine the correct withholding rate.

Form W-8 BEN-E

Foreign entities such as corporations, partnerships, and limited liability companies (LLCs) use Form W-8 BEN-E to certify their foreign status and classification under the Foreign Account Tax Compliance Act (FATCA). Like the W-8 BEN, this form allows eligible entities to claim reduced withholding rates under an applicable tax treaty.

Types of W-8 forms

The W-8 form is a series of forms designed to cater to different situations, from foreign individuals who earn income in the US to international organizations or foreign governments that have US-based financial dealings. There are several versions of Form W-8 and each serves a different purpose:

• Form W-8 BEN: This document is used by foreign individuals (e.g., a freelancer in Germany who provides services to a US company) to confirm their non-US status. It helps them take advantage of tax treaty benefits that could reduce their US tax liabilities. Additionally, they use this form to affirm that they are the rightful recipients of the income they’re receiving, which is especially relevant when it comes to income such as dividends, royalties, and interest.
  

• Form W-8 BEN-E: This serves a similar purpose but is intended for foreign entities, not individuals.

• Form W-8 IMY: This is for intermediaries, which could be entities or individuals who fill out a Form W-8 on behalf of another.

• Form W-8 EXP: Foreign governments, international organizations, and similar entities use this form.

• Form W-8 ECI: This is for foreign individuals or entities that claim that their income is directly connected with a US trade or business.

The IRS website offers more detailed explanations of each form and provides guidance on when to use them.

Who needs to file a W-8 BEN form?

Non-US individuals who earn income from US sources must file Form W-8 BEN. The form helps payers determine the correct amount of tax to withhold and allows eligible filers to claim benefits under a US tax treaty. Here’s who needs to file one:

• Non-US individuals who receive US-sourced income: Non-US individuals who receive interest, dividends, rents, royalties, or similar types of US-sourced income need to complete Form W-8 BEN. The form verifies that the individual isn’t a US resident for tax purposes and establishes their eligibility for any applicable tax treaty benefits.

• Foreign freelancers and contractors: Foreign individuals who perform services for US-based clients or businesses should submit Form W-8 BEN before they receive payment. Filing the form ensures their payers withhold tax at the correct rate rather than the default statutory rate.

• Foreign investors: Non-US individuals who hold US investments (e.g., stocks, bonds, mutual funds) and earn income through dividends or interest payments should file Form W-8 BEN with their brokers or financial institutions.

US tax laws are complex and subject to change so the situations above might not cover every case where a non-US individual needs to file Form W-8 BEN. If you're unsure whether the form applies to your situation, consult a tax professional with expertise in US tax law.

What happens if you don’t file a W-8 BEN form?

If you're a non-US individual who receives certain types of US-sourced income and you don't provide a valid Form W-8 BEN, the payer might be required to withhold tax at the default statutory rate (often 30%). Without a properly completed and signed W-8 BEN on file, the withholding agent cannot apply treaty benefits—even if you’re eligible.

In practical terms, this can mean higher tax withholding on payments such as interest, dividends, royalties, and certain service income until a valid form is submitted.

Common W-8 BEN mistakes to avoid

Small errors on Form W-8 BEN can trigger backup withholding or cause your payer to reject the form entirely. Here's what to watch for.

Leaving treaty claims blank when you're eligible

Many non-US individuals skip this step without realizing their countries have tax treaties with the US. This means their payers withhold tax at the default 30% rate instead of the reduced rate they qualify for. Before you submit the form, check whether your country of residence has an active tax treaty with the US and whether your income type falls within its scope.

Using inconsistent country information

Your country of citizenship, country of permanent residence, and country of tax residence should all align logically. Entering conflicting information across these fields raises warning signs with payers and the IRS, and can result in the form’s rejection.

Submitting the form without a signature or date

An unsigned or undated Form W-8 BEN is invalid, full stop. Payers cannot accept it, which means they must withhold tax at the default statutory rate until you submit a valid, completed form.

Using the wrong form

Form W-8 BEN applies only to non-US individuals. Foreign businesses and entities need to use Form W-8 BEN-E instead. Submitting the wrong form causes processing delays and might result in incorrect withholding.

Leaving your TIN blank when it's required

If you're claiming tax treaty benefits, you must include a valid TIN—either a US TIN or a foreign TIN. Without one, your payer cannot honor the treaty claim and will withhold tax at the default rate.

Using a PO Box as your permanent address

The permanent address field requires your actual residential address. Entering a PO Box, a bank's address, or a temporary address can invalidate the form. If your mailing address differs from your permanent one, use the separate mailing address field for that.

Forgetting that the form expires

Form W-8 BEN isn’t a one-time submission. Generally, the form expires after three calendar years, although certain circumstances can trigger earlier expiration (e.g., a change in your country of residence). Resubmit an updated form before it expires to avoid your payer’s reverting to the default withholding rate.

Manage W-8 BEN collection and withholding compliance with Stripe

Stripe Tax helps businesses and platforms securely collect W-8 forms during onboarding, validate required information, store documentation centrally, and track expiration timelines, so you can reduce manual paperwork and minimize compliance risk.

Learn how Stripe supports tax documentation and withholding workflows.