What Is a W-8BEN Form?

Key takeaways

• W-8BEN form defined: The W-8BEN form is used by non-U.S. residents to certify their status and ensure correct tax withholding on U.S.-sourced income.
• Purpose of the W-8BEN: It verifies status, determines eligibility for tax treaty benefits, and identifies individuals subject to a 30% tax on U.S. income.
• Ensuring tax compliance: Correctly using Form W-8BEN is important for U.S. companies when documenting the foreign status of non-U.S. individual payees and applying IRS withholding and reporting rules for certain non-wage payments, including some payments to non-U.S. independent contractors. 
• Tax treaty benefits: Individuals from countries that have a tax treaty with the U.S. can be eligible for tax reductions or exemptions on U.S.-sourced income.

Global hiring continues to grow as companies look beyond their borders for talent, and many professionals are equally interested in working for international employers. According to G-P research, the majority of employees prefer to work for a global company. As businesses expand internationally, they take on extra tax and compliance responsibilities.

One of those responsibilities can involve collecting Form W-8BEN from eligible non-U.S. individuals to make sure the correct U.S. tax withholding is applied. Whether you're expanding your workforce with the help of an employer of record (EOR) or hiring international talent directly, understanding how Form W-8BEN works is important. This guide explains who completes the form, when it's needed, and what employers need to know.

What is a Form W-8BEN?

Form W-8BEN is an IRS form used by non-U.S. individuals to certify their non-U.S. status and, where applicable, claim a reduced withholding rate or exemption under an income tax treaty for certain U.S.-source income.

Non-U.S. individuals, including some international independent contractors and freelancers getting U.S.-source payments, can be asked to provide Form W-8BEN to the U.S. company paying them. The correct documentation can depend on the type and source of income and whether a treaty benefit is being claimed.

What is Form W-8BEN used for?

Under U.S. tax sourcing rules, compensation for services performed entirely outside the U.S. is foreign-source income and isn’t subject to U.S. federal income tax withholding. Collecting a valid Form W-8BEN helps document the contractor’s foreign status in the company’s records.

If services are performed in the U.S., or if the source of the income is unclear, the withholding analysis changes. U.S.-source payments to foreign persons can be subject to withholding, often at a 30% rate unless an exemption or reduced treaty rate applies and the appropriate documentation is provided.

Form W-8BEN commonly applies to certain types of U.S.-sourced income, including:

1. Interest
2. Dividends
3. Royalties
4. Rents and annuities
5. Premiums
6. Substitute payments, if applicable

What are tax treaties?

Tax treaties are agreements between two countries that:

• help allocate taxing rights
• reduce double taxation
• provide clearer rules for cross-border income, residency, and withholding obligations.

For example, under U.S. domestic tax rules, income that’s connected with a U.S. trade or business is taxed on a net basis at standard graduated U.S. tax rates. Tax treaties can then affect how certain types of cross-border income are taxed, depending on the treaty and the taxpayer’s eligibility.

Under the U.S.–Canada tax treaty, Canada-based tax residents getting eligible U.S.-source income can claim a reduced U.S. withholding rate or exemption by providing the appropriate IRS documentation to the U.S. payer. These treaty mechanisms help reduce or relieve double taxation, often by limiting source-country withholding or allowing tax credits in the country of residence. 

When an individual qualifies as a tax resident of both the U.S. and another country under each country’s domestic law, the applicable income tax treaty can provide “tie-breaker” rules to determine the individual’s residence for treaty purposes. These rules consider factors such as:

• where the individual has a permanent home
• where their personal and economic relations are closer
• where they have a habitual abode. 

Establishing treaty residence in one country can allow eligible individuals to claim treaty benefits and reduce double taxation, subject to the specific treaty terms and any limitations, such as the U.S. treaty saving clause. 

Countries with U.S. income tax treaties

The U.S. maintains income tax treaties with many countries, including trading partners like Canada, the UK, Germany, Japan, France, Australia, India, and Mexico.

Because treaty status directly affects withholding obligations, U.S. payers need to consult the official IRS United States Income Tax Treaties A to Z list and work with an international tax or employment specialist to confirm:

• current treaty availability
• documentation requirements
• applicable rates.

Tax treaties can change over time. For employers hiring internationally, it’s important to stay informed about evolving laws in their target country. AI-powered tools like G-P Gia™ — G-P’s AI-based global HR agent — can give expert guidance on global employment laws in 50 countries and all 50 U.S. states, reducing the cost and time of compliance by up to 95%.

Who provides the W-8BEN form?

The correct IRS form depends on: 

• the payee type
• income type
• where services are performed
• whether treaty relief is being claimed.

According to the IRS, an employee has to give Form W-8BEN to the withholding agent or payer if they’re a nonresident alien who is the beneficial owner of an amount subject to withholding. They have to submit Form W-8BEN when requested by the withholding agent, whether or not they’re claiming a reduced rate of, or exemption from, withholding. A W8BEN can be completed and provided to the grantor’s withholding agent or equity administrator.

When hiring foreign individual contractors, U.S. companies request Form W-8BEN during onboarding or before paying the first invoice. 

Companies have to collect and verify the accuracy and legitimacy of the forms they get. The W-8 form can still be valid with minor errors. If the date is missing from the signature, the employer can add the date upon receipt and consider it valid from that point forward.

Who needs to fill out form W-8BEN?

Form W-8BEN is completed by nonresident aliens (NRAs). U.S. businesses paying non-U.S. individuals need to collect Form W-8BEN from international contractors or individual payees who meet the following criteria:

1. They’re non-U.S. citizens or residents (NRA).
2. They work for a U.S. company or earn U.S.-sourced income.
3. They claim tax treaty benefits or reduced withholding.
4. They earn fixed or periodic income from the U.S.

Who is responsible for withholding the income tax?

Companies paying income to non-U.S. tax residents, known as U.S. withholding agents, are responsible for withholding taxes at the source before paying the individual. Failure to properly withhold can result in noncompliance penalties or fines. If multiple withholding agents are involved, the tax only needs to be withheld once from the owners of the income.

If the employer is withholding income tax on behalf of the individual, don’t send the form to the IRS upon receipt. They need to securely store the form in their records for as long as necessary to determine their liability.

If information changes and makes the W-8BEN incorrect, the U.S. withholding agent needs to provide a new form. It's best practice to keep your W-8BEN forms current and to respond promptly when the payer requests an updated form.

How to fill out Form W-8BEN

When completing Form W-8BEN, individuals need to follow the IRS instructions. The form includes three main parts: 

• Identification of Beneficial Owner
• Claim of Tax Treaty Benefits
• Certification.

In Part I, the individual gives identifying information such as:

• full legal name
• country of citizenship
• permanent residence address
• mailing address if different
• foreign tax identifying number where required, 
• U.S. taxpayer identification number where required
• date of birth in MM-DD-YYYY format. 

The permanent residence address has to be the individual’s permanent residence address in the country where they claim to be resident for income tax purposes. It can’t be a P.O. box or in-care-of address.

If applicable, the individual completes Part II to claim treaty benefits by identifying:

• their country of tax residence
• the relevant treaty article
• the applicable reduced withholding rate or exemption. 

The individual has to complete Part III by certifying and signing the form.

Form W-8BEN doesn’t ask for: 

• income history
• bank details
• payment records
• prior tax return information.

Are there other W-8 forms?

Yes. The IRS has several W-8 forms for different types of non-U.S. tax-withholding scenarios. They include:

• Form W-8BEN-E for non-U.S. entities or international entities, instead of individuals
• Form W-8IMY: Used by foreign intermediaries, foreign flow-through entities, and certain U.S. branches to certify their status when getting payments on behalf of other persons or as intermediaries, rather than as the beneficial owner of the income  
• Form W-8EXP: Used by certain qualifying foreign entities — including foreign governments, foreign central banks of issue, international organizations, foreign tax-exempt organizations, foreign private foundations, and governments of U.S. possessions — to certify their status and claim an exemption from, or reduction of, U.S. tax withholding where applicable  
• Form W-8ECI: Used by non-U.S. individuals or entities to certify that income they get is effectively connected with trade or business in the U.S. When a valid Form W-8ECI is given, the withholding agent doesn’t withhold the standard 30% tax at source on that effectively connected income, because ECI is reported on a U.S. tax return and taxed on a net basis at applicable U.S. rates.   

Forms W-8 vs. Forms W-9: What’s the difference?

W-8 forms are used by non-U.S. individuals and entities to certify non-U.S. status and, where applicable, claim treaty benefits or other withholding exemptions for certain U.S.-source payments. Form W-9 is used by U.S. persons, including U.S. citizens, resident aliens, and domestic entities, to provide a taxpayer identification number and certification to the requester.

Both W-8 and W-9 forms are given to the requester or payer for recordkeeping, withholding, and tax reporting purposes. They aren’t filed directly with the IRS by the payee. Form W-9 generally doesn’t expire but the payee has to give an updated form if their name, tax classification, taxpayer identification number, FATCA status, or other certified information changes. 

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