The paperwork is shorter than you think. The expensive part is not opening the account: it is three things that happen afterwards and that nobody explains.
Published on August 22, 2026 · by Alex · Guide · Getting started · US market
Yes, you can invest in the US stock market from outside the country. You need an account with a broker that accepts clients from your country, an ID document, proof of address, and the W-8BEN form declaring you are not a US tax resident. No visa, no US address and no large minimum deposit are required.
The full list is below and the whole process fits in an afternoon. But there is one part of it that costs almost everyone money without them ever noticing, because it never shows up as a fee. We will get there in order.
| Requirement | What for |
|---|---|
| ID document or passport | Identity verification |
| Recent proof of address | A utility bill or a bank statement |
| A bank account in your name | To send and receive money. It has to be yours: almost no broker accepts third-party transfers |
| W-8BEN form | Declaring you are not a US tax resident |
| A suitability questionnaire | Experience, income and objective. Required by regulation |
What you do not need, contrary to what many people believe: a US social security number, a US address, a visa, or a large minimum deposit.
Four of those five requirements are paperwork. The fourth decides how much money you lose every year without noticing.
It is the single most important piece of paper in the process and the one most people sign without reading. With it you declare one thing to the US tax authority: that you are not a US tax resident.
That has two concrete consequences. First, it keeps you outside the general US tax system, which is what you want. Second, if your country has a double taxation treaty with the United States, this form is what lets you claim the reduced withholding rate that treaty sets on dividends.
And here is the trap: it expires. If it lapses and you do not renew it, withholding goes back to the maximum with no warning at all. No email, no alert in the app: you simply start receiving smaller dividends and do not know why.
It is the most common administrative mistake among people investing from abroad. And it is not the most expensive one. The most expensive one is in the next step.
This is the cost we mentioned at the start, the one that never shows up as a fee anywhere.
The route is always the same: your local currency is converted into dollars and those dollars are transferred to the investment account. It can happen at your bank, at a currency exchange, or inside the broker itself.
And here is what costs beginners the most: the cost that matters is not the stated commission, it is the spread. The spread is the gap between the rate you are given and the one visible in the market. A broker can advertise “no FX commission” and charge you 2% hidden in the rate, which is worse than a visible 0.3% fee.
How to check it in thirty seconds: look up the market rate at that moment, look at how many dollars you would actually receive for your amount, and work out the percentage difference. That number is what you are being charged, whatever it is called.
The second question worth asking: what it costs to take the money back out. Many brokers charge little to receive and a fair amount to withdraw, and you only find out the day you need it.
Less than people think. Most brokers dropped account minimums and allow fractional shares: instead of buying a whole share, you buy a slice for whatever amount you choose. A 900 dollar share stops being a barrier.
The real limit is not the minimum but fixed costs. If you pay a flat commission per trade, investing tiny amounts makes that commission an absurd percentage. With a flat fee it pays to batch and trade less often; without one, contributing little and often works well.
With the how much settled, what is left is what the United States takes. And there is one fact there that surprises almost everyone — including people who have been investing for years.
There are two categories and they are treated very differently. Worth getting straight, because intuition misleads here.
When a US company pays a dividend to a non-resident, the United States applies withholding at source — the general rate is 30% — which the broker deducts automatically before the money reaches your account. If your country has a double taxation treaty with the United States, that rate can be lower, and a current W-8BEN is what gives you access to the reduction.
This is the part that surprises people. If you buy a share at 100 and sell it at 160, the United States generally does not tax that gain when the person making it is a non-resident who does not spend long stretches in the country. The gain from selling shares is not treated as US-source income for these purposes.
Careful: the US not taxing it does not mean it is untaxed. It means your country decides.
The United States applies an estate tax to assets situated in its territory — and shares in US companies count — when the holder dies, with an exemption for non-residents that is far lower than a resident's. It is not an issue for a small account, and it is worth being aware of as a position grows. It is an estate planning matter, not an investing one, and it is resolved with formal advice.
This guide stops here on purpose, and it is worth saying why.
Every country treats foreign income differently: what gets declared, on which form, at what rate, from what threshold, and how the tax already withheld in the US is credited. The right answer for one country is the wrong answer for its neighbour, and it changes with every tax reform.
What does apply everywhere: keep everything. The annual reports your broker issues, the detail of every trade, and the dividend withholding statement, which in many countries is what lets you credit tax already paid abroad. With that, any accountant in your country settles it in one meeting.
Not a recommendation — every situation differs and this site does not give financial advice — but a description of a pattern that repeats.
Most people start with an ETF tracking a broad index, usually the S&P 500, rather than with individual stocks. The reason is not returns: it is that a single position forces you to have an opinion about a specific company, and someone just starting does not yet have the tools to form one.
Later, once you can read a quarterly report and know what a P/E means, individual positions start to appear. That order — index first, company second — is the one that most often survives the first falling market.
The paperwork is short: account, ID, W-8BEN, transfer. What deserves care is the currency conversion cost, keeping the W-8BEN current, and understanding that the United States withholds on dividends but normally does not tax a non-resident's capital gains — and that what you owe in your own country is a separate matter to settle with someone who knows your law.
And a warning that belongs here: none of the above is financial or tax advice. It is an explanation of the mechanism, which is exactly what you need in order to ask the right questions.
Source on US tax treatment: the IRS publication on withholding for non-resident aliens (Publication 515). Rates and exemption amounts change; check what is current before acting.
The next guide: What an ETF is and how to choose one
Yes. US markets are open to foreign investors and no residency, visa or citizenship is required. What you need is an account with a broker that accepts clients from your country, plus the W-8BEN form declaring that you are not a US tax resident.
Most brokers today have no minimum deposit and allow fractional shares, meaning you can buy part of a share. That makes it possible to start with small amounts. The practical limit is not the account minimum but fixed costs: if you pay a flat commission per trade, very small amounts make that commission weigh too much.
As a general rule the United States withholds 30% on dividends paid by a US company to a non-resident, a rate that can be lower where a double taxation treaty exists between that country and the United States. Capital gains from selling shares, by contrast, are normally not taxed by the United States for a non-resident. Separately, each country taxes this income under its own rules.
It is the declaration confirming to the US tax authority that you are not a US tax resident. Your broker asks for it when you open the account, it takes a couple of minutes online, and it has to be renewed periodically. If it is not current, the maximum withholding applies to your dividends even where a treaty would allow a lower rate.
It depends and it is worth comparing, but the cost that matters is almost never the stated commission: it is the gap between the exchange rate you are given and the market rate. That gap is called the spread, and for moderate amounts it is usually the largest cost in the whole process.
