What Is Form W-8BEN? A Guide for Non-US Investors in the EU, UK and Worldwide (2026)

If you live outside the United States and you buy US stocks through a broker, sooner or later a screen will ask you to complete Form W-8BEN. It looks like paperwork, but it decides how much of every US dividend you keep. This guide explains what the form is, who needs it, how to fill it in line by line, what is different in each country, how long it lasts, and what rate applies to investors in each treaty country.

Facts checked on 12 October 2026 against the dated sources listed at the end. Tax rules change, so always confirm the current rate and your own situation before acting.

Key takeaways:

• Form W-8BEN is a certificate in which a non-US individual confirms their foreign status. You give it to your broker or other payer of US income, and it is also where you claim a tax-treaty rate.
• Without a valid form, the payer may withhold the default 30% on US dividends. With a valid treaty claim, the rate drops to your country’s treaty rate: 15% for most EU countries, the UK and many others, 10% for a handful (for example Bulgaria, Romania, China and Japan), and higher for a few such as India (25%).
• A form is generally valid from the date you sign it until the end of the third calendar year after that, and you must replace it if your circumstances change.
• The US rate is only half the story. Your home country taxes the dividend too, and whether the US tax is credited depends on local rules. Where your home rate is lower than the US rate, part of the US tax can be a pure cost.
• The form does not change US estate tax exposure. A non-US resident who holds US stocks can face US estate tax rules above a $60,000 threshold.

Watch the video summary

A short silent video with music that covers the same points: the 30% default, the treaty rates by country, the line-by-line basics and what the form does not fix.

What Form W-8BEN is

The full name is Certificate of Foreign Status of Beneficial Owner for United States Tax Withholding and Reporting (Individuals). It is an IRS form that foreign individuals who receive income from US sources give to the withholding agent, which in practice is usually your broker. You provide it whenever the payer asks for it, whether or not you are claiming a reduced rate. The current version is dated October 2021, and the IRS page was last reviewed on 2 October 2026. The instructions say plainly not to send the form to the IRS; you give it to the person who requested it.

The form does two jobs at once. It tells the payer you are not a US person, and it tells the payer which country you are tax resident in, so the payer can apply the tax treaty between that country and the US.

Who needs it, and who does not

The IRS instructions say the form is for nonresident aliens who are the beneficial owners of income subject to US withholding, and for foreign individuals who hold accounts with foreign financial institutions. In everyday terms: if you are an individual investor living outside the US, and you are not a US citizen or green card holder, your broker will ask for a W-8BEN before paying you US dividends.

The form is not the right one in these cases:

• You are a US citizen or US resident. The instructions say US persons should not use it.
• You are a company or other foreign entity. Entities use a separate form, W-8BEN-E.
• The income is connected to a US trade or business. That case uses Form W-8ECI.

Interactive Brokers, for example, asks non-US individual customers to complete a W-8BEN when they open an account, and treats F-1 visa students who are not citizens or green card holders the same way.

What it changes: the 30% default and the treaty rate

US-source dividends paid to a nonresident alien are subject to withholding at 30%, or at a lower treaty rate. The IRS says dividends are reportable for any amount. If you do not give the payer a form, the instructions state it may withhold at 30%.

The treaty rate is a ceiling that the broker applies when your form claims it correctly. On a $100 dividend, 30% leaves you $70 before any home-country tax. At a 15% treaty rate you receive $85, and at 10% you receive $90.

Other kinds of income are treated differently. The IRS says interest from US bank deposits is generally not taxable for nonresident aliens, portfolio interest is reported but not taxed, and capital gains are generally not taxed for a nonresident alien who spends fewer than 183 days in the US in a year. Brokers can still apply their own procedures when a form is missing or has expired, which is covered below.

How to fill it in, line by line

Most brokers present this as an online questionnaire and generate the form for you, so you rarely handle the PDF. It still helps to know what each answer means. This follows the IRS instructions for the October 2021 version.

Part III is the certification. You sign and date it under penalty of perjury. The instructions say electronic signatures are accepted when the form records that it was signed electronically, for example with a timestamp and statement, and that simply typing your name into the signature line is not an electronic signature. Both you and anyone who signs on your behalf can be liable for penalties if the form is wrong or false.

Country-specific points when filling it in

Three lines cause most of the country-specific questions: line 6a (your tax number), line 9 (the treaty country) and line 3 (the address). Line 9 follows tax residence, not citizenship. A citizen of one country who lives and pays tax in another claims the treaty of the country where they live, and a change of country is a change in circumstances that requires a new form. The table lists the countries where we could confirm the tax number from an official or OECD source, in alphabetical order.

Two practical tips. First, enter the number exactly as your tax authority issued it, including any letters. Second, if your broker rejects the number, the most common cause is entering a different kind of number, such as a VAT number or a company number, instead of your personal tax number.

How long it lasts, and what happens when it expires

A form is generally valid from the date you sign it through the last day of the third calendar year after that. The IRS example is a form signed on 30 September 2015, which is valid through 31 December 2018. Under some conditions, it stays valid indefinitely until your circumstances change.

If any information on the form becomes incorrect, the instructions tell you to notify the payer within 30 days and provide a new form. Moving to the US, becoming a US citizen or resident, or moving to a different country than the one you claimed treaty benefits for all count as a change. A move within the same country generally does not.

Brokers enforce this strictly. Interactive Brokers says it emails you when a new form is due. If a form lapses, it treats you as a non-US person without a treaty claim and applies 30% withholding on interest and dividends, and the page also warns that failing to update the form can lead to withholding on gross proceeds from securities sales. XTB, whose help-centre article (updated 12 March 2026) is written for its UK clients, says the form is available online through the Client Office. Put the expiry year in your calendar when you sign.

US dividend withholding by country

The charts below show the standard withholding rate on US-company dividends paid to portfolio investors, taken from IRS Treaty Table 1 (revised May 2023; the IRS treaty-tables page was last reviewed on 23 February 2026). The first chart covers all 27 EU member states, and the second covers the UK, the rest of Europe and the rest of the world. The dashed line marks the 30% default that applies without a valid claim. Hover over a bar for the exact value, or use the tables below each chart.

A few cautions about these numbers. They are the general rate for portfolio dividends; some countries have lower rates for companies that own a large stake, and some rates carry footnoted conditions in the IRS table. The table reflects the May 2023 revision, and treaties change. Hungary’s treaty ended on 1 January 2024, so US-source dividends to Hungarian residents are withheld at 30% (RSM Hungary, 26 September 2023). IRS Publication 515 for 2026 also notes that treaty benefits are not accepted at the reduced rate for some recipients in Russia from 16 August 2024 and for certain Belarus interest payments from 17 December 2024. A country not listed in the IRS table is treated at the 30% rate. Check the current table before relying on any rate.

What happens after the US takes its share

The US withholding is only the first step. Your home country usually taxes the same dividend again, and whether it gives you credit for the US tax depends on its rules and on the treaty. The chart below puts the two rates side by side for the EU countries and the UK where we found a dated, checkable source.

Read the chart like this. Where the orange bar is longer than the blue one, as in France, Germany, Poland, Romania, Sweden and for a UK higher-rate taxpayer, the home country charges more than the US withheld, so you usually top up the difference. Where the orange bar is shorter, as in Bulgaria and for a UK basic-rate taxpayer, the US takes more than your home country would, and you may not be able to recover the excess at home.

A simplified example with hypothetical countries, for a $100 US dividend. It assumes the home country credits the US tax up to its own tax on that dividend. Real rules differ, and some countries limit the credit to the treaty amount, which can make the no-form column worse.

The pattern is the same everywhere: a valid form pulls the US rate down to the treaty rate, and what you pay in total is then the higher of the US rate and your home rate in this simplified model. Without the form you pay at least the 30% default. The snapshots below, in alphabetical order, give the home-country details we could verify.

Bulgaria

Bulgaria taxes dividends at a 5% final tax. According to an April 2026 article by a Bulgarian advisory firm, the 10% withheld in the US under the treaty fully covers the Bulgarian liability through the foreign tax credit, so no extra Bulgarian tax is due, but the credit cannot exceed the Bulgarian tax on the same income, so the extra 5% withheld in the US is not refundable in Bulgaria. A US refund route exists through Form 1040-NR, which the article describes as slow and requiring an ITIN. Dividends are reported in the annual return (form 2001), due by 30 April of the following year, and the article says foreign dividends go in Annex 8 with the credit claimed in Annex 9, with proof of the foreign tax such as the US Form 1042-S attached (Innovires, 21 April 2026).

France

Dividends fall under the flat tax by default: 12.8% income tax plus 17.2% social levies, 30% in total. Taxpayers can opt for the progressive income tax scale instead, which brings a 40% allowance in some cases (Legifiscal, updated March 2024). We could not verify the French treatment of foreign withholding tax from a dated official source for this article, so check the current guidance from the French tax administration before claiming a credit.

Germany

The federal tax office says capital income is subject to a 25% withholding tax plus a 5.5% solidarity surcharge on that tax, and is generally taxed at a flat 25% as a final tax (BZSt, undated page). Church tax may apply on top. We confirmed the format of the German tax number, but we could not verify the rules for crediting foreign withholding tax against German tax from an official source for this article, so we do not describe them here.

Poland

Poland applies a flat 19% on dividends. Polish tax residents report foreign dividends in their annual return, and tax paid abroad can be deducted from the Polish tax only within the limits set by the regulations (Getsix, 28 August 2025). With a US treaty rate of 15%, the Polish rate is higher, so you would normally owe the difference.

Romania

Dividends distributed from 1 January 2026 are taxed at 16%, up from 10% (PwC Romania, 28 July 2025; also Capital.ro, 3 August 2026, citing the tax authority). Foreign dividends are declared in the single declaration (D212), in the section for income obtained abroad, and foreign income must be declared even when a treaty means no extra tax is due. Romania credits foreign tax only if there is a tax convention with the source country, and only up to the amount of the Romanian tax due on that income (Fiscalitatea.ro, 23 February 2026). The health contribution (CASS) applies only above thresholds of 6, 12 or 24 minimum salaries, with a 10% rate on the band’s base.

Spain

Spanish tax residents declare dividends from any country in Spain. With a treaty, the treaty sets the limit on the tax of the source country, and Spain normally allows a deduction for tax paid abroad up to the treaty limit; without a treaty, a deduction for international double taxation may apply under article 80 of the personal income tax law. If your shares are held with a Spanish custodian, the custodian withholds Spanish tax on the dividend net of the foreign withholding (Spanish Tax Agency, updated 7 November 2024). We did not verify Spain’s rate scale for this article.

Sweden

Dividends on shares and fund units are taxed at 30%. Foreign dividends are reported before foreign tax is deducted, and in some cases the foreign tax can be credited against Swedish tax by applying in your tax return (Skatteverket, last modified 23 January 2026).

United Kingdom

For the 2026 to 2027 tax year, the first £500 of dividends falls within the dividend allowance, and dividends above it are taxed at 10.75% (basic rate), 35.75% (higher rate) or 39.35% (additional rate), according to GOV.UK. The UK relief for foreign tax is claimed on your tax return and depends on the UK’s tax treaty with the source country; GOV.UK warns that you may get back less than the full foreign tax if the treaty sets a smaller amount, or if the income would be taxed at a lower UK rate (GOV.UK, last updated 1 October 2026). For a basic-rate taxpayer, the 15% US withholding is higher than the UK rate on the dividend, so part of it may not be recoverable.

Other countries

The US side of the picture, the treaty rate in the charts, is the same for everyone in the same country. The home side depends on your country’s rules, and we only cover the countries above. For any other country, check your tax authority’s guidance or ask an adviser, and look for how foreign tax credits are limited.

Is a W-8BEN needed for ETFs?

It depends on what you hold. If you buy a US stock directly, the dividends flow to you and the treaty claim on your form applies. If you hold a European UCITS ETF that owns US shares, the US withholding is taken at fund level, and your own treaty status does not change it. According to a July 2026 article by a US CPA firm, Irish-domiciled funds generally pay 15% on US dividends under the Ireland–US treaty, while Luxembourg-domiciled funds typically face 30%. That is why the fund’s domicile is worth checking when you compare ETFs, as we do in our guide to low-cost world, S&P 500 and Europe trackers. For US-domiciled ETFs, your broker applies the same form, though how each part of a fund’s distribution is taxed can vary, so check with your broker.

US estate tax: the part the form does not fix

The W-8BEN has no effect on estate tax. The IRS says the executor of a deceased nonresident who was not a US citizen must file Form 706-NA if the value of US-situated assets at death exceeds $60,000. US-situated assets include stock of US-organized corporations, even if the certificates are held abroad or registered in a nominee’s name. Estate tax treaties can narrow what counts as US-situated, so the answer depends on your country. The same July 2026 article says shares of UCITS ETFs are generally not US-situated for a nonresident alien, while shares of US-domiciled ETFs are, with estate tax rates up to 40%. If you hold more than a small amount of US stocks directly, ask a tax adviser about this rule.

Common mistakes to avoid

• Letting the form expire. A lapsed form can turn a 15% rate into 30%, and some brokers withhold more broadly until you update it.
• Using the wrong country on line 9. The treaty rate follows the country where you are tax resident, not your citizenship.
• Entering a PO box or a mailing address on line 3. The instructions require a permanent residence address.
• Entering the wrong kind of number on line 6a. Use your personal tax number, not a VAT or company number.
• Not telling the broker you moved. A change of country of residence requires a new form within 30 days.
• Typing your name as a signature. The IRS says that on its own this is not an electronic signature.
• Assuming it covers everything. The form only reduces US withholding. It does not remove home-country tax, estate tax exposure or reporting duties.

Checklist before you sign

1. Confirm the country where you are tax resident today.
2. Find the exact tax number your country issued to you personally.
3. Use your permanent residence address, not a PO box.
4. Check your country’s treaty rate in the charts above, and confirm it on the current IRS table.
5. Sign and date it properly, and note the expiry year (the last day of the third year after signing).
6. Set a reminder for the 30-day rule if you plan to move.

Quick answers

Do I send the form to the IRS? No. You give it to your broker or other payer of US income, who relies on it when withholding.

Do I need a US tax number? Usually not. For most treaty claims, a foreign tax number on line 6a is accepted instead of an ITIN or SSN, according to the IRS instructions.

Does it apply to capital gains? Capital gains are generally not taxed for a nonresident alien present in the US for fewer than 183 days in a year, whether or not you have a form. The form matters mainly for dividends and interest.

What if my country is not in the tables? The IRS table treats countries without a treaty at the 30% rate. Check whether a newer treaty has taken effect.

Sources

• IRS, Form W-8BEN page (Rev. October 2021), reviewed 2 October 2026: irs.gov
• IRS, Instructions for Form W-8BEN (Rev. October 2021): irs.gov/instructions/iw8ben
• IRS, Tax treaty tables, reviewed 23 February 2026; Table 1 (Rev. May 2023): irs.gov
• IRS, list of jurisdictions that do not issue foreign TINs, reviewed 17 August 2026: irs.gov
• IRS, withholding and reporting on other kinds of US-source income paid to nonresident aliens, reviewed 23 July 2026: irs.gov
• IRS, Some nonresidents with US assets must file estate tax returns, reviewed 27 June 2026: irs.gov
• IRS, Publication 515 (2026): irs.gov/publications/p515
• Interactive Brokers, Tax information and reporting for non-US customers (undated page, read 12 October 2026): interactivebrokers.com
• XTB help centre, What is the W8-BEN form and how does it work (updated 12 March 2026): xtb.com
• OECD, Tax identification numbers (UK sheet, undated): oecd.org and the country portal
• ANAF, material on tax registration of individuals (undated; cites an order of 9 December 2022): static.anaf.ro
• BZSt, Identifikationsnummer: bzst.de
• BZSt, Kapitalerträge (undated): bzst.de
• DGFiP, creating your personal account (02/2026): impots.gouv.fr
• RSM Hungary, termination of the US-Hungarian tax treaty, 26 September 2023: rsm.hu
• PwC Romania, Law no. 141/2025, 28 July 2025: pwc.ro
• Capital.ro, 3 August 2026, on the tax authority’s list of 2026 changes: capital.ro
• Fiscalitatea.ro, foreign dividends and Romanian tax, 23 February 2026: fiscalitatea.ro
• Skatteverket, rules for interest and dividends (last modified 23 January 2026): skatteverket.se
• Agencia Tributaria, dividends from another country (updated 7 November 2024): agenciatributaria.es
• Innovires, income from the US and other non-EU countries for Bulgarian tax residents, 21 April 2026 (advisory firm): innovires.com
• Getsix, dividend tax in Poland, 28 August 2025 (advisory firm): getsix.eu
• Legifiscal, dividends and the flat tax (updated 5 March 2024): legifiscal.fr
• GOV.UK, Tax on dividends (rates for 2026 to 2027): gov.uk; Tax on foreign income: if you’re taxed twice (updated 1 October 2026): gov.uk
• Taxes for Expats, UCITS ETF withholding tax, PFIC rules and US estate tax, updated 15 July 2026 (commercial tax-preparation firm): taxesforexpats.com

This article is for general information only and is not tax or legal advice. Rates, treaties and thresholds change, and treaty claims can have conditions that depend on your situation. Confirm the current rules with your broker, your tax authority or a qualified adviser. This page contains no affiliate links.