If you are a Ukrainian resident buying US stocks or ETFs through Interactive Brokers, Freedom Finance or another broker, the first tax document you meet is not Ukrainian at all. It is the US Form W-8BEN. Fill it in correctly and US tax on your dividends drops from 30% to 15%; skip it or make a mistake and the broker withholds the full 30%. This guide explains what the form does, how to complete each line as a Ukrainian resident, what the US–Ukraine tax treaty says about dividends, interest and capital gains, and how it all connects to your Ukrainian declaration.
This article is general information, not tax advice. Rules are summarized from the IRS instructions and the treaty text linked below; for complex situations, consult a tax adviser.
What W-8BEN is and why brokers ask for it
Form W-8BEN, "Certificate of Foreign Status of Beneficial Owner for United States Tax Withholding and Reporting (Individuals)", tells the US withholding agent — your broker — that you are not a US person and, optionally, that you claim benefits under a tax treaty (IRS: About Form W-8BEN). Without it, a broker must treat you as a non-documented foreign person and withhold at the default 30% rate on US-source dividends.
You give the form to the broker, not to the IRS. Most brokers, including Interactive Brokers, collect it electronically during account opening.
How long it is valid
A W-8BEN remains valid from the date it is signed until the last day of the third succeeding calendar year, unless a change in circumstances makes information on it incorrect (IRS: Instructions for Form W-8BEN). A form signed on March 10, 2026 is valid until December 31, 2029. If something changes — you move to another country, change citizenship or address — you must notify the broker within 30 days and submit a new form.
Brokers usually remind you before expiry. If the form lapses, withholding goes back to 30% until you renew.
Filling in the form line by line
The current version of the form has three parts (Form W-8BEN, PDF). For a typical Ukrainian resident individual:
| Line | What to enter |
|---|---|
| 1. Name | Your full name in Latin letters, as in your passport and broker account |
| 2. Country of citizenship | Ukraine |
| 3. Permanent residence address | Your actual address in Ukraine; not a PO box or "in care of" address |
| 4. Mailing address | Only if different from line 3 |
| 5. US TIN | Usually leave empty; not needed for dividend treaty benefits on brokerage accounts |
| 6a. Foreign TIN | Your Ukrainian taxpayer number (RNOKPP, the 10-digit individual tax number) |
| 6b. FTIN not legally required | Leave unchecked if you entered line 6a |
| 7. Reference number | Usually empty; the broker may fill in your account number |
| 8. Date of birth | MM-DD-YYYY format |
| 9. Treaty country | Ukraine — this claims residence for treaty purposes |
| 10. Special rates and conditions | Usually empty for ordinary dividends and interest |
| Part III | Sign, date, and confirm capacity |
Common mistakes that get forms rejected or lead to 30% withholding: a permanent address outside Ukraine while claiming the Ukrainian treaty, a missing foreign TIN, a name that doesn't match the account, or using a W-8BEN when you are actually a US person (for example a green card holder), who must use Form W-9 instead.
What the US–Ukraine treaty gives you
The Convention between Ukraine and the United States on the avoidance of double taxation (treaty text) sets maximum US tax rates for Ukrainian residents:
| Income | US tax with a valid W-8BEN | Treaty article |
|---|---|---|
| Dividends on US stocks and ETFs (portfolio holdings) | 15% | Article 10 (5% only for companies with at least 10% of voting stock) |
| Interest (bonds, broker interest) | Taxable only in Ukraine, so generally 0% US withholding | Article 11 |
| Capital gains on shares (not real-estate companies) | Not taxed in the US | Article 13 |
Without the form, dividends suffer 30% US withholding. So for $1,000 of dividends, a valid W-8BEN leaves you $850 instead of $700 before Ukrainian tax.
What happens in Ukraine
The treaty limits US tax; it does not remove your Ukrainian obligations. As a Ukrainian resident you declare worldwide income (Tax Code of Ukraine):
- Dividends from foreign companies: personal income tax at 9% (subparagraph 167.5.4) plus military levy at 5%.
- Capital gains (investment profit): 18% personal income tax plus 5% military levy on the annual net result, with losses offset within the year and carried forward.
- Foreign interest: 18% plus 5%.
Can the 15% US tax reduce your Ukrainian 9%? The Tax Code allows crediting foreign tax under a treaty (subparagraph 170.11.2), but only with a certificate from the foreign tax authority confirming the tax paid, legalized as required (paragraph 13.5). A broker's 1042-S or statement is not such a certificate. In practice, many investors therefore pay the full Ukrainian tax on dividends in addition to the US withholding. The credit, where available, applies to personal income tax; military levy is paid in full.
We compare foreign stocks with Ukrainian government bonds, including a worked tax calculation, in Government bonds vs foreign stocks: how investors are taxed in Ukraine. To turn Interactive Brokers or Freedom Finance reports into a ready tax calculation, you can use our free tool Taxered.
ETFs domiciled outside the US
Many European investors hold UCITS ETFs domiciled in Ireland or Luxembourg instead of US-listed ETFs. US dividends inside such a fund are taxed at the fund level under the fund country's treaty with the US, and distributions from the fund to you are generally not subject to US withholding, so W-8BEN matters less. Your Ukrainian tax treatment then depends on the fund's country and legal form; check it before choosing between accumulating and distributing share classes.
A note on US estate tax
The treaty covers income tax, not estate tax. The IRS states that nonresidents who are not US citizens may have to file a US estate tax return if their US-situs assets, such as shares of US companies, exceed $60,000 at death (IRS: nonresidents with US assets). For larger portfolios, this is a reason to look at non-US-domiciled funds or professional advice on estate planning.
Checklist
- W-8BEN submitted with a Ukrainian permanent address and RNOKPP on line 6a
- Line 9 claims Ukraine as the treaty country
- Dividend statements show 15% withholding, not 30%
- Renewal date noted (end of the third calendar year after signing)
- Broker notified within 30 days of any change of residence or address
- Ukrainian declaration filed by May 1 and tax paid by August 1 of the following year
Submitting and renewing the form with your broker
Most brokers handle W-8BEN entirely online: you fill in a web form during account opening, sign it electronically and the broker stores it. Later, the current form and its expiry date are usually visible in the account or tax settings section of the client portal, where you can also submit an updated version.
Practical habits that avoid surprises:
- Check your first dividend. The broker statement should show 15% US withholding. If you see 30%, contact support immediately — the form may be missing, rejected or expired.
- Keep a copy of the signed form and the confirmation for your records.
- Update promptly after moving. If you relocate during the war and become tax resident in another country, your treaty position changes; a W-8BEN claiming Ukraine would no longer be correct.
- One form per broker. Each withholding agent needs its own W-8BEN; a form at one broker doesn't cover accounts at another.
FAQ
Do I need a US tax number (SSN or ITIN)? Not for claiming the treaty dividend rate on a brokerage account; your Ukrainian tax number on line 6a is used instead.
I live abroad temporarily. Which country do I put on line 9? The country where you are a tax resident under that country's law and the treaty. If you have become tax resident elsewhere, the Ukrainian treaty may no longer apply; get advice before signing.
My broker withheld 30% on dividends. Can I get it back? Brokers sometimes correct withholding within the same year once a valid form is in place. Otherwise, reclaiming over-withheld tax requires filing a US tax return, which is often not worth it for small amounts.
Does W-8BEN affect taxes on selling stocks? Under the treaty, capital gains on ordinary shares are taxed only in Ukraine. The form documents your foreign status so the broker doesn't apply US reporting meant for US persons.
Is W-8BEN needed for ETFs listed in Europe? Generally not for funds domiciled outside the US, since their distributions are not US-source income, but brokers often request the form anyway for any account holding US securities.
Sources
- IRS. About Form W-8BEN, Instructions for Form W-8BEN, Form W-8BEN (PDF).
- Convention between the Government of Ukraine and the Government of the USA on the avoidance of double taxation.
- Verkhovna Rada of Ukraine. Tax Code of Ukraine: paragraph 13.5, subparagraphs 167.5.4 and 170.11.2.
- IRS. Tax treaty tables and Some nonresidents with US assets must file estate tax returns.