30% Withheld From Your US Dividends? One W-8BEN Form Cuts It to 10%

The short version: this form is worth real money

If you live in China and earn dividends through a US broker, the US default is to withhold 30% of your dividends. But the US–China tax treaty caps withholding for Chinese tax residents at 10% — and you claim it by signing a W-8BEN with your broker.

The math: $1,000 of annual dividends means $300 withheld without the form, $100 with it. You keep $200 a year.

Who you are	Which form	What your broker sends you at year-end
China resident, not a US tax resident	W-8BEN	1042-S
US citizen / green card holder / US tax resident	W-9	1099-DIV / 1099-B

One-line rule: file US taxes → W-9; live in China trading US stocks → W-8BEN.

Which form is yours: a 30-second check

Do you hold a US green card or US citizenship? → W-9.
Were you in the US at least 31 days this year, with 183+ days under the three-year weighted formula (all of this year + 1/3 of last year + 1/6 of the year before)? → You're likely a US tax resident → W-9.
None of the above, and you're a China tax resident trading US stocks from China → W-8BEN.

Note: US citizens file W-9 even if they live abroad — never W-8BEN.

How to fill out the W-8BEN: three moves that matter

The form's full name is "Certificate of Foreign Status of Beneficial Owner." It tells your broker two things: I'm not a US person; I'm a China tax resident — apply the treaty rate.

Move 1 — Identity (Part I): name and nationality as in your passport; permanent residence address must be a non-US address. A change of address to a US address counts as a "change in circumstances" — the IRS requires a new form within 30 days.

Move 2 — Treaty claim (Part II): the only step on this form that saves you money. Treaty country: China; article: Article 9 (Dividends); rate: 10%.

Move 3 — Sign (Part III): sign under penalties of perjury. Give the form to your broker — never mail it to the IRS.

How long does it last? The year you sign plus three calendar years. A form signed in 2026 stays valid through December 31, 2029. Renew on expiry, on moving, or on any change of tax status — otherwise your broker goes back to 30%.

Four mistakes to avoid

Mistake 1: Never filing, or letting it expire. No valid W-8BEN on file, 30% it is. Many brokers send reminders, but set your own calendar alert.

Mistake 2: Putting a US address on it. Even a mail-forwarding address counts — the IRS explicitly treats a change to a US address as a change in circumstances requiring a new form within 30 days. Keep your permanent address non-US.

Mistake 3: A US tax resident filing W-8BEN. Green card holders, citizens, and those meeting the 183-day rule should file W-9. Filing W-8BEN when you're a US person is a compliance risk.

Mistake 4: Thinking the W-8BEN is a tax return. It isn't — it's a withholding certificate telling your broker how much to withhold. With correct withholding, nonresidents generally don't need to file a US return. At year-end you'll get a 1042-S, not a 1099.

For US-based readers: the W-9 version

US citizens, green card holders, and US tax residents file W-9 and give the broker your SSN or ITIN. Your broker sends 1099-DIV / 1099-B at year-end and you file your own return. Dividends are taxed at your normal rates — the 10% treaty rate is for nonresidents only.

One note on capital gains

Nonresidents generally owe no US tax on capital gains from selling US stocks. So the 10% treaty benefit mainly matters for dividends, not trading profits. Consult a licensed tax professional for your situation.

Where to sign it at each broker

IBKR: signed electronically during the "confirm tax residency" step of account opening; most fields are pre-filled — verify them (follow the actual flow on the day you open the account).
Schwab International: W-8BEN is signed when opening a non-resident account and renewed every three years.
moomoo / Webull / Fidelity: all include an electronic W-8BEN step in the non-resident account-opening flow; follow each broker's current process.

One boundary to keep clear: IRAs are US-tax-resident products — W-8BEN holders can't open them.

Choosing a broker first? See our broker comparison: moomoo / Webull / IBKR / Schwab / Fidelity compared side by side.

Disclaimer: This article summarizes public tax information and is not tax advice. Consult a licensed tax professional for your situation.