Opening a US Brokerage Account as a Non-Resident Alien

Buying US shares from Lagos, Manila or Dubai is far more ordinary than it was ten years ago. What still trips people up is not the investing. It is the paperwork: proving who you are to a US broker, filling in a tax form most people have never heard of, and moving money across a border without losing a chunk of it to currency spread.

This guide walks through that process in order, then sets out the criteria worth comparing brokers on. It is general information, not investment or tax advice. We are not licensed advisers, we do not recommend any share, fund or firm, and anything involving your own tax position deserves a professional who knows both countries.

Who counts as a non-resident alien

The label comes from US tax law, not immigration law. The IRS defines a non-resident alien as someone who is not a US citizen or national and who has passed neither the green card test nor the substantial presence test. Fail both tests, and you are a non-resident alien for tax purposes even if you hold a valid US visa.

That means the category covers several very different people:

• Someone living entirely outside the US who wants exposure to US markets.
• A student or short-term worker on a temporary visa who has not yet met the substantial presence test.
• A former resident who has left and no longer meets either test.

Step by step: opening the account

The mechanics are similar across firms, even though the details differ.

1. Check that the broker serves your country. This is the real gate. Nothing in US law stops a foreign investor from owning US shares, but each firm chooses its own markets, and sanctions screening applies. Ask the firm directly rather than relying on a list you found online.
2. Gather identity documents. Expect a passport, sometimes a second photo ID, and proof of your residential address such as a utility bill or bank statement in your own name. Scans usually need to be clear, unedited and recent.
3. Complete the account application. You will be asked about your employment, source of funds, investment experience and tax residence. Answer accurately: mismatches between your stated country and your documents are a common cause of rejection.
4. Submit Form W-8BEN. The broker will provide it, often as a digital form inside the application. This is where a treaty claim is made, if you have one.
5. Get a taxpayer identification number if you need one. Non-residents without a Social Security number apply for an ITIN on Form W-7. The IRS asks you to allow roughly seven weeks for a response, and nine to eleven weeks during filing season or from abroad.
6. Fund the account. Usually an international wire, sometimes a local transfer to a partner bank. Check both the sending fee and the exchange rate.
7. Keep the file. Store copies of the W-8BEN you signed, your ITIN notice and every year-end tax statement the broker issues.

The W-8BEN form and why it matters

Form W-8BEN establishes that you are a foreign person and the beneficial owner of the income. The IRS is explicit that you should give it to the withholding agent or payer whether or not you are claiming a reduced rate of withholding.

Skipping it is expensive. Without valid documentation, the broker has to treat the payment under the default rules, and the default for US-source dividends paid to a foreign person is a flat 30%.

The form also expires. Brokers will normally prompt you to re-certify, but the responsibility to keep your details current, including a change of address or country, sits with you.

Dividend withholding and treaty rates

The IRS explains that where a non-resident alien is not carrying on a US trade or business, US-source income that is fixed, determinable, annual or periodical is taxed at a flat 30%, or a lower treaty rate, with no deductions allowed against it. Dividends fall squarely in that category.

A tax treaty between the US and your country of residence may reduce the rate. The IRS publishes treaty tables for exactly this purpose: Table 1 lists withholding rates on dividends, interest, royalties and similar income, country by country, with the treaty article referenced.

Two practical points. First, check your own country in the IRS tables rather than trusting a figure quoted in a forum. Second, treaties contain limitation-on-benefits rules designed to stop residents of third countries claiming benefits never meant for them, so being tax-resident in a treaty country is the thing that counts, not your nationality.

The estate tax point almost nobody mentions

This is the part that catches families out. US estate tax can reach the US-situated property of someone who was neither a US citizen nor domiciled in the US. The IRS says an estate tax return, Form 706-NA, is required where the date-of-death value of those US-situated assets, together with certain lifetime gifts and the gift tax exemption, exceeds $60,000 — a threshold the IRS notes is not indexed for inflation. The return is generally due within nine months of death.

US-situated property can include securities, not just real estate. So a modest portfolio of US shares held directly by a non-resident may sit above that threshold.

Estate and gift tax treaties exist with some countries and can change the result significantly, and so can how the investment is held. This is genuinely specialist territory. If your US holdings are meaningful, it is worth paid advice before, not after, the fact. Some investors abroad look at non-US-domiciled funds partly for this reason, but whether that suits you is a question for an adviser, not an article.

What to compare when choosing a broker

We are not going to rank firms or quote their fees. Those change constantly, vary by country, and go out of date faster than any article can be updated. What does not change is the list of things worth asking about.

Use this as a checklist and get the answers from the firm in writing:

• Eligibility. Does the firm accept residents of your country, and residents on your visa status? Any minimum deposit?
• Documentation. Exactly which documents, in which language, and will certified translations be needed?
• Tax forms. Does the firm collect the W-8BEN itself, apply treaty rates automatically once accepted, and issue you an annual statement of US tax withheld?
• Custody protection. Is the entity you are contracting with a SIPC member, or a non-US affiliate under a different regime? Get the legal name of the entity.
• Funding and FX. What are the wire fees at both ends, what currencies are accepted, and what margin is applied to the exchange rate? The FX spread is often the largest hidden cost.
• Withdrawals. Can money return to a bank account in your own name in your country, and how long does it take?
• Products and access. Whole shares or fractions, the exchanges covered, and whether the funds you want are actually available to non-residents.
• Support and inheritance. Time zones, languages, and what happens to the account if you die or lose capacity.

On protection, be precise. SIPC covers cash and securities held at a financially troubled member firm up to $500,000, including a $250,000 limit for cash, and it states that there is no requirement for a customer to live in or be a citizen of the US. It does not protect against a fall in the value of your investments. Different protection entirely.

If you are weighing up US markets as part of a bigger move, our guides on how to live and work in the USA and the legal routes to a US green card cover the immigration side, and top-paying jobs in the USA looks at earnings.

Mistakes worth avoiding

• Assuming your treaty rate applies automatically. It has to be claimed.
• Letting a W-8BEN lapse, or leaving a stale address on the account after you move country.
• Ignoring your home country's rules. A US withholding outcome says nothing about what you owe where you live, and many countries give credit for foreign tax paid only if you declare it properly.
• Treating a broker's marketing page as tax guidance.
• Leaving estate planning until it is somebody else's problem.

Everything above reflects IRS and SIPC guidance as it stood when this guide was written, in late September 2026. Verify anything that matters against the official source, and take professional advice on your own position before you invest.