W-8BEN vs W-9: What's the Difference and Which Do You File?

The one question that decides the form

Strip away the complexity and there is a single test: is the beneficial owner of the income a US person? If yes, the payer wants a W-9. If no, the payer wants a form from the W-8 series. Everything else is detail.

A US person means a US citizen, a US resident for tax purposes, or an entity formed in the United States - broadly speaking. A foreign person is anyone else. The forms exist because the payer needs to know whether to report the payment as US-source income to a US taxpayer, or to apply non-resident withholding rules.

Within the W-8 series the split is individual versus entity. An individual foreign contractor files W-8BEN. A foreign company files W-8BEN-E, which is longer because entity classification and treaty positions are more involved. Using the individual form for a company, or vice versa, is one of the commonest reasons a form gets rejected and payment gets delayed.

The foreign-owned LLC trap

This is where the neat rule collides with reality, and it is the single most confusing situation for the founders this site serves. You are a non-resident. You formed a US LLC. A US client or platform asks for a tax form. Which one?

The instinct is to file a W-9, because the LLC is a US entity with a US EIN. But a single-member LLC owned by a foreign person is generally a disregarded entity for federal tax purposes, meaning the IRS looks through the company to its owner. Since the beneficial owner is a foreign individual, the appropriate form is usually from the W-8 series - completed by reference to the owner - not a W-9.

That answer routinely breaks platform onboarding flows. Some systems see a US entity name and a US EIN and only offer a W-9. Others insist on a W-8BEN but then reject it because the account is registered to a US company. Freelance marketplaces are particularly prone to this, and founders end up stuck between two forms that both look wrong.

When that happens, do not simply pick whichever form the system will accept. Signing a W-9 certifying you are a US person when you are not is a false certification. Contact the payer's support, explain that the entity is a foreign-owned disregarded LLC, and ask how they handle it - and get the classification confirmed by a tax professional, because the answer can turn on facts specific to you.

• A US EIN does not make a foreign owner a US person.
• Foreign-owned single-member LLCs are commonly disregarded to the owner.
• Never sign a W-9 certifying US status you do not have.

What each form actually does

The W-9 collects a US person's name, classification and taxpayer identification number so the payer can report payments correctly, typically on an information return. It carries a certification of US status, signed under penalty of perjury.

The W-8BEN establishes that an individual is not a US person, and lets them claim a reduced rate of withholding under an income-tax treaty between their country and the United States. Without a valid form, a payer may apply the statutory 30% withholding rate to certain US-source payments - which is exactly why founders suddenly notice a large deduction on a royalty or platform payout.

The W-8BEN-E does the same job for entities, with additional sections for the entity's classification and, where relevant, treaty position. Both W-8 forms have a validity period and generally need refreshing, so a form filed years ago may no longer be current with a payer.

None of these forms are filed with the IRS by you. They go to the person or platform paying you, who keeps them on file and relies on them when applying withholding and reporting rules.

Treaty claims and the 30% withholding problem

The most valuable part of the W-8 series is the treaty claim, and it is also the part most often left blank. Where a treaty exists between your country and the US, it may reduce or eliminate withholding on certain payment types such as royalties. If you do not complete that part correctly, the payer applies the default rate.

This is the mechanism behind a very common complaint: a self-published author or app developer outside the US sees roughly 30% withheld from royalties and assumes it is unavoidable. Frequently it is a treaty benefit that was never claimed, or a form completed without the required identifying number.

Which identifying number is needed depends on the payment type and the payer's requirements, and for some treaty claims an individual taxpayer number is expected. That is a separate application with its own timeline, so if a treaty claim matters to your income, start on it early rather than discovering the requirement when a payout is already reduced.

Not every country has a treaty with the United States, and treaty articles differ by income type - a rate that applies to royalties may not apply to services. Check the specific treaty and article rather than assuming a single blanket rate.

Getting it right without over-thinking it

For most readers the practical sequence is short. Identify the beneficial owner of the income. Decide whether that owner is a US person. Choose W-9 for a US person, W-8BEN for a foreign individual, W-8BEN-E for a foreign entity. Complete the treaty section if a treaty applies to your income type.

Keep a copy of every form you send, note when you sent it, and diarise the refresh. Payers do not always warn you that a form has expired; you find out when withholding changes.

Where the position is genuinely unclear - most often the foreign-owned disregarded LLC case, or where you have both US and foreign elements - take advice rather than guessing. These forms are signed certifications, and the cost of a professional opinion is small compared with getting a certification wrong.