How to Buy International Shares from Australia (US Shares and Beyond)
How to buy international shares from Australia: choosing a broker, converting AUD, the W-8BEN form, US withholding tax, and whether an ETF is simpler.
10 min read
This builds on how to buy shares in Australia. If you're already comfortable with the ASX basics and want to know what changes when you buy shares listed overseas, this is that guide. It's written to be platform-agnostic, none of this depends on which broker you use, the mechanics are the same everywhere.
Quick answer
You need a broker that offers international trading, since not every Australian broker does. Your AUD gets converted to the local currency (usually USD), which typically costs 0.5-1.0% each way. If you're buying US shares, you'll want a W-8BEN form on file to avoid 30% dividend withholding tax instead of the treaty rate of 15%. International shares sit in a custodial structure rather than CHESS, which matters if your broker goes under. If you'd rather skip all of that, an ASX-listed ETF tracking a global index is a genuinely reasonable alternative.
In this guide
- โWhy Australians bother buying international shares at all
- โThe extra steps involved compared to buying on the ASX
- โCHESS-sponsored vs custodial holdings, and why it matters if your broker fails
- โCurrency conversion, FX fees, and how exchange rates affect your return
- โT+1 settlement for US shares vs T+2 on the ASX
- โWhat a W-8BEN form is and why you need one
- โWhether an ASX-listed ETF is simpler than buying direct
๐ Why Australians buy international shares
The ASX is a fine market, but a small one, it represents roughly 2% of global share market capitalisation. Investing only locally means missing the other 98%, including entire industries with no real ASX equivalent, think Apple, Amazon, Nvidia, LVMH. International shares open up different industries, different economic cycles, and a lot more scale.
There's a diversification argument too. When the Australian economy struggles, whether that's commodity prices or the property market, international markets don't necessarily move the same way. Spreading across geographies can smooth out some of that volatility, though it doesn't eliminate it.
๐งญ How it actually works: the basics
๐ฏ The essential: Same core steps as buying ASX shares, just with a few extra layers bolted on.
The process looks familiar if you've bought ASX shares before:
- Open a broker account that supports international markets (not all Australian brokers offer this).
- Fund the account in AUD.
- Convert to the relevant currency, usually USD for US shares.
- Place the order during that market's trading hours.
- Wait for settlement.
The extra layers compared to an ASX trade: currency conversion, a different settlement timeline, a different ownership structure, and additional tax paperwork. None of it is complicated on its own, but it's worth understanding each piece before you place your first order.
๐๏ธ CHESS-sponsored vs custodial holdings: what's different
CHESS (Clearing House Electronic Subregister System) is the ASX's settlement and registry system. When you buy through a CHESS-sponsored broker, you get a HIN (Holder Identification Number) and your shares are registered directly in your name, owned outright, independent of your broker. CHESS only covers ASX-listed securities.
Buy shares on the NYSE or NASDAQ and there's no Australian equivalent to fall back on. Instead, your shares are held in a custodial or nominee structure. The broker, or a third-party custodian, is the registered legal holder, and you hold a beneficial interest. That still entitles you to the economic benefits, dividends and capital gains, but not direct registration in your own name.
This matters for counterparty risk. If your broker goes bust, recovering shares held in a custodial structure is more complicated than with a CHESS-sponsored holding, though reputable brokers segregate client assets to provide some protection. For US-listed shares specifically, the Securities Investor Protection Corporation (SIPC) covers up to $500,000 in securities and cash combined per customer (with a $250,000 sub-limit on cash) if a US broker becomes insolvent. That protects against the broker itself failing, not against your shares losing value, and it applies to US broker insolvency specifically, not an Australian broker's.
One clean workaround exists: ASX-listed ETFs tracking international indices are CHESS-sponsored, just like any other ASX share. That sidesteps the custodial structure entirely. See our beginner's guide to ETFs if that sounds appealing.
๐ฑ Currency conversion and FX fees
Buying US shares means buying in USD, and converting AUD to USD isn't free. Most Australian brokers charge an FX spread, the difference between the mid-market exchange rate and the rate they actually give you, typically 0.5-1.0% each way. On a $10,000 trade that's roughly $50-100 to convert, and you pay it again converting back when you sell, so budget something like 1-2% round-trip on currency alone, before brokerage.
Some brokers let you hold a USD cash balance, which is useful for frequent traders, since you can convert a lump sum once rather than paying the spread on every individual trade.
Currency risk cuts both ways too. Even if US shares rise 10% in USD terms, if the AUD strengthens 10% against the USD over the same period, your return in AUD terms is roughly zero. Exchange rate movements can amplify or erode your returns entirely independent of how the underlying shares perform.
โฑ๏ธ Settlement: T+1 vs T+2
| Market | Settlement cycle |
|---|---|
| ASX | T+2 (two business days) |
| US markets (NYSE, NASDAQ) | T+1 (one business day), since 28 May 2024 |
| Europe (EU, UK, Switzerland) | Still T+2, targeting a move to T+1 around October 2027 |
The practical implication is that converted USD needs to be ready before you trade US shares, there's less buffer than you get on the ASX. Europe has been moving toward T+1 as well, though as of publication it hadn't fully implemented the change, treat any specific European settlement date as indicative rather than locked in, and check the current status before relying on it.
๐ The W-8BEN form: what it is and why you need one
๐ฏ The essential: Without a valid W-8BEN, the US withholds 30% of your dividends by default. With one on file, the tax treaty drops that to 15% for almost every retail investor.
W-8BEN is an IRS form, "Certificate of Foreign Status of Beneficial Owner for United States Tax Withholding and Reporting." It tells the US that you're not a US person. Without a valid one on file, the US defaults to withholding 30% of dividends from US companies.
With a valid W-8BEN, the Australia-US tax treaty applies instead. For Australian residents holding under 10% of a company's voting shares, essentially all retail investors, withholding drops to 15%. A 5% treaty rate does exist, but only for substantial corporate holdings of 10%+ voting power, not something that applies to ordinary retail investors.
Validity. The form stays valid through the end of the third calendar year after you sign it. Sign it in 2026, and it's valid through 31 December 2029, then it needs renewing. If your circumstances change, for example you move to the US, notify your broker within 30 days and submit a new form.
Most brokers collect the W-8BEN during account opening for international trading, but don't just assume it's there, confirm it's actually on file. If it's missing or expired, you're hit with the 30% default rate on every dividend until it's sorted.
What it doesn't do. The W-8BEN reduces US withholding tax only, it has no bearing on your Australian tax obligations. US dividends still need to be declared as income in your Australian tax return, the gross amount, including the US tax withheld, goes in as income. You then claim a foreign income tax offset for the US tax withheld, which reduces your Australian tax bill dollar-for-dollar, up to certain limits.
๐ How this differs from buying ASX shares
| ASX shares | International shares | |
|---|---|---|
| Currency | AUD | USD, EUR, GBP or other, depending on the market |
| Settlement | T+2 | T+1 for US shares, varies elsewhere |
| Ownership structure | CHESS-sponsored, HIN in your name | Custodial or nominee, broker is the registered holder |
| Tax paperwork | Dividends and CGT, relatively simple | W-8BEN, plus foreign income declaration and foreign tax offset |
| Trading hours (AEST) | 10am-4pm, Monday to Friday | Roughly 11:30pm-6am AEST, shifting an hour or so either side with daylight saving in each country |
You can place orders in advance using limit orders so you don't have to stay up watching a market on the other side of the world, but you can't realistically monitor a live US market during normal Australian business hours the way you can with the ASX.
๐งฉ Alternatives to buying international shares directly
ASX-listed ETFs tracking international indices are a genuinely compelling alternative, especially for beginners:
- CHESS-sponsored, you get a HIN, no custodial structure to worry about.
- No W-8BEN needed, the ETF provider handles the US tax paperwork, you just receive distributions and declare them in your own return.
- Lower FX friction, the ETF manager converts currency in bulk, often at better rates than an individual retail investor gets.
- Instant diversification, one ETF tracking a global or US index gives you exposure to hundreds or thousands of companies in a single trade.
- No individual position management, nothing to track company by company.
The trade-off is a management fee, typically 0.03-0.30% p.a. for index ETFs, and you give up the ability to pick individual stocks. ETFs have their own tax considerations around how distributions are taxed, but they're generally simpler than managing a spread of individual international shares for most beginners. Our beginner's guide to ETFs and index funds vs ETFs breakdown both cover this in more depth.
Honest take: direct international shares give you more control, no management fee drag, and the ability to be selective. ETFs give you simplicity, diversification, and a cleaner ownership structure. Neither is universally better, it depends on what you're trying to do and how hands-on you actually want to be.
๐ฆ What Is an ETF? A Beginner's Guide
If the custodial structure and W-8BEN paperwork sound like more than you want, start here.
What I actually use
Pearler
This is the broker I personally use. Do your own research and form your own opinion, but I genuinely recommend it, it's built for long-term investors rather than day traders, and makes it easy to automate regular investing. Sign up through my link or with the code TIMOTHY269825 and you'll both get a $20 cash bonus once you make your first investment (Pearler's current offer, T&Cs apply).
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โ Frequently asked questions
Do I need to fill in a W-8BEN form to buy US shares?
+
Technically you can buy without one, but you'll be hit with 30% US withholding tax on dividends. With a valid W-8BEN on file, the Australia-US tax treaty reduces that to 15% for most retail investors. Most brokers collect the form during account setup, but confirm yours actually has it on file and that it hasn't expired.
How much tax is withheld on US dividends for Australian investors?
+
The default is 30%. With a valid W-8BEN and the tax treaty applied, it drops to 15% for portfolio investors holding under 10% of a company's voting shares, which covers virtually every retail investor. You can then claim a foreign income tax offset in your Australian tax return for the US tax withheld. Confirm current rates with the ATO or a tax adviser before relying on them.
Can I buy international shares through a regular Australian broker?
+
Some Australian brokers offer international trading, others don't, it's not standard across the board. Check whether your broker supports the specific markets you want. US shares are the most commonly available, access to European, Asian or other markets varies significantly between brokers.
What is the difference between CHESS-sponsored and custodial shares?
+
CHESS-sponsored means your shares are registered directly in your name on the ASX's settlement system, linked to your HIN. Custodial means a broker or third-party custodian holds the shares on your behalf, you have the economic rights but not direct registration. International shares are almost always custodial, since CHESS only covers ASX-listed securities.
Do I need to declare international shares on my Australian tax return?
+
Yes. Australian tax residents must declare foreign dividends as income and report capital gains or losses when selling, converting all amounts to AUD. You can generally claim a foreign income tax offset for foreign tax withheld, such as US dividend withholding tax. Talk to a tax professional if you're unsure how this applies to your situation.
Is it better to buy international ETFs or individual international shares?
+
It depends. Individual shares give you control, no management fee, and the ability to be selective. ASX-listed international ETFs give you simplicity, CHESS sponsorship, no W-8BEN requirement, and instant diversification. For most beginners, ETFs are the lower-friction path. For investors who want specific companies, direct shares make sense, but with more moving parts.
โ ๏ธ Before you rely on this
This article is general information only. It is not financial advice and not tax advice. Tax rules and treaty withholding rates can and do change, and every situation is different. Always verify current rates and rules with the ATO, the IRS, or a qualified tax professional before acting on anything here.
๐ Recommended reading

The Psychology of Money
Morgan Housel
19 short stories on how people actually think and feel about money, not just the maths of it.

The Barefoot Investor
Scott Pape
Australia's best-selling money book ever. A simple system for accounts, budgeting, debt and a real emergency fund in one.
Some links above are affiliate links. If you buy through them, Snowball Invest may earn a small commission at no extra cost to you. We only recommend books we'd suggest anyway.
Sources
- 1. About Form W-8BEN, Internal Revenue Service
- 2. Instructions for Form W-8BEN, Internal Revenue Service
- 3. United States income tax treaty documents, Internal Revenue Service
- 4. Claiming a foreign income tax offset, Australian Taxation Office
- 5. Income tax treaties, Australian Taxation Office
- 6. What SIPC Protects, Securities Investor Protection Corporation
- 7. Settlement services and CHESS, Australian Securities Exchange
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Timothy Hirou Gaschereau
Founder of Snowball Invest, not a financial adviser.
I write about what I'm learning myself, because nobody ever taught us how to take control of our own money. It's a skill, not a mystery, and it's never too late to learn it. The best day to start was yesterday, the second best is today.
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