The tax picture for Singapore residents buying US stocks is lopsided. At home there is usually little to pay, because individuals are generally not taxed on foreign dividends they receive or on gains from shares held as investments. The US side is heavier: with no income tax treaty between the two countries, dividends lose 30% at source, and US estate tax can reach US shares above a modest threshold. That combination makes Irish-domiciled ETFs worth understanding before you buy anything. This guide covers both tax systems, how to buy and who actually holds the shares, and a worked example comparing three ways to own the same index. Singapore law and MAS rules decide which firms may serve you and how your income is treated, so if your situation is unusual, check it with a Singapore tax professional. The invest-from-abroad hub sets out the rules common to every country.
Why do Singapore residents pay 30% on US dividends?
Because Singapore is not on the list of US income tax treaty partners, so dividends paid to its residents are withheld at the statutory rate.
The statutory rule is 30% on US-source dividends, unless a tax treaty sets a lower rate. With no treaty, nothing lowers it, and the IRS treaty table gives the same figure in every column:
| Country | Tax treaty | Dividends (most investors) | Dividends (10%+ corporate owners) | Interest |
|---|---|---|---|---|
| Singapore | No | 30% | 30% | 30% |
The interest column overstates the cost. Most interest that individual investors earn from the US, including interest on Treasury bills, notes and bonds, is exempt from withholding under US law as long as your broker holds a valid Form W-8BEN. That form certifies you are not a US person, so it still matters without a treaty; the W-8BEN guide explains it line by line, and the guide to Treasury bills for non-US investors covers how bills can be bought from abroad.
Capital gains are the other half of the picture, and here the US generally takes nothing from nonresidents. A Singapore investor in US shares therefore pays US tax mainly through dividends, which is why the yield of a holding, and the fund structure around it, matter more than they would for a treaty country. The overview of US dividend withholding by country shows how far Singapore's rate sits from the treaty rates.
What does IRAS tax on US investments?
For most individuals, nothing: foreign dividends received in Singapore are exempt, and gains on shares held as investments are generally not taxed.
IRAS states that foreign-sourced income received by individuals is not taxable and does not need to be declared in the income tax return, with exceptions such as income received through a partnership in Singapore. The exemption has applied since 2004 and covers dividends from US companies and US-domiciled funds. Because Singapore charges no tax on the dividend, there is nothing for the US withholding to be credited against, and the 30% is a final cost.
Gains follow a similar rule. IRAS generally views profits from buying and selling shares and other financial instruments as personal investments, so they are not taxed and do not go in the return. The exception is trading. IRAS judges property traders by how often they deal, why they buy and sell, whether they can afford to hold long term and how long they hold, and someone who deals in shares in a similar way can be treated as carrying on a trade, with the profits taxed as income. Holding through a company changes the picture too, because companies are taxed under different rules.
Singapore also does not restrict where your money goes. Exchange controls were abolished in 1978, and Singapore dollars can be moved abroad freely, so funding a broker in the US is a question of cost rather than permission. The guide to reporting US investments at home compares Singapore's light reporting with other countries'.
Irish-domiciled ETFs: the main alternative
An Irish-domiciled ETF that tracks a US index cuts the dividend withholding in half and sits outside the US estate tax.
The saving comes from the US-Ireland tax treaty. A fund resident in Ireland generally has 15% withheld on the US dividends it receives, against the 30% a Singapore resident pays on a US-listed fund. Many Irish funds also accumulate, reinvesting dividends instead of paying them out, which suits investors who have no use for the cash.
Estate tax is the second advantage. Shares of a company organized outside the US are not US property for a nonresident's estate, and an Irish fund is an Irish entity, so it falls outside the US estate tax regardless of what it owns.
The trade-offs are practical rather than legal. Irish funds list on European exchanges such as London and trade in European hours, so the spread you pay and the time you can deal differ from a US-listed fund, and fees vary from fund to fund. Check the total cost of each fund against the withholding it saves. The comparison of US and Irish-domiciled ETFs works through the numbers, and the guide to what an ETF is covers how index funds work.
How do Singapore residents buy US stocks?
Through a broker or bank regulated in Singapore, which buys the shares on a US exchange, or through an account opened directly with a broker abroad.
Firms that deal in capital markets products, or provide custody for them, need a capital markets services licence from MAS; banks and certain other institutions are exempt from the licence but remain regulated by MAS. Before opening an account, search the firm in the MAS Financial Institutions Directory and check that it is not on the MAS Investor Alert List, which names unregulated entities that may have been wrongly perceived as licensed by MAS. For more complex listed products, which MAS calls Specified Investment Products, the firm must first assess your knowledge or experience in a Customer Account Review; ordinary shares do not need one.
An account directly with a broker outside Singapore gives a wider choice of markets but takes you outside MAS supervision, so check the firm's home regulator and its investor protection rules. The guide to opening a US brokerage account as a nonresident covers documents and account types, the checklist for choosing a brokerage account explains what to compare, and FDIC and SIPC protection explains how US investor protection works for customers of US firms.
CDP or custodian account: who holds your shares?
It depends on where the shares are listed: SGX-listed securities can sit in your own CDP account, while US shares are usually held by a custodian on your behalf.
The Central Depository (CDP) is SGX's depository for securities listed in Singapore. With a direct CDP account, the shares are recorded in your own name, and CDP's rules treat the direct account holder as the absolute owner of the securities in it. Each person can have only one direct account, which is linked to the brokers you trade through.
US shares bought on a US exchange do not go into CDP. A Singapore broker usually holds them through a custodian in a nominee arrangement: the custodian is the registered holder, and the broker's records show that you are the owner. This is normal, but it means your protection depends on how the broker and custodian segregate client assets, so read the account terms and ask where the shares are held.
The one exception is a US fund listed on SGX. The SPDR S&P 500 ETF Trust trades on SGX's main board in US dollars, in one-unit lots, and units bought there can go into CDP. It is still the same US-domiciled trust that trades on NYSE Arca, so its dividends lose 30% and it remains US property for estate tax.
Rules for Singapore residents at a glance
This summary covers an individual resident in Singapore who holds US shares or US-domiciled ETFs directly.
| Rule | What applies |
|---|---|
| US withholding on dividends | 30%; Singapore has no US income tax treaty |
| US withholding on interest | Most portfolio, Treasury and bank interest is exempt with a W-8BEN |
| US tax on gains | Generally none for nonresidents |
| US estate tax | On US assets above $60,000, at 18% to 40%, with a $13,000 credit; no estate tax treaty |
| Singapore tax on foreign dividends | Generally exempt for individuals; no need to declare |
| Singapore tax on gains | Generally not taxed unless you are trading |
| Singapore estate duty | Abolished for deaths on or after February 15, 2008 |
| Exchange controls | None since 1978 |
| Who holds the shares | Your CDP account for SGX-listed securities; a custodian or nominee for US-listed ones |
Worked example: $10,000 in an S&P 500 fund, three ways
The example compares the same index exposure held through three structures.
Worked example: $10,000 tracking the S&P 500 with a 1.3% dividend yield
Assumptions: $130 of dividends a year from the index, no Singapore tax on any of the three, and US tax as set out above.
- US-listed S&P 500 ETF: $130 × 30% = $39 withheld, $91 received
- SPDR S&P 500 units bought on SGX: the same US trust, so $39 withheld and $91 received
- Irish-domiciled accumulating S&P 500 ETF: about $130 × 15% = $19.50 withheld inside the fund, $110.50 reinvested
- Difference in tax: $39 − $19.50 = $19.50 a year in favour of the Irish fund, before fees and spreads
- Estate position: the first two count as US property; the Irish fund does not
The $19.50 looks modest, but it scales with the portfolio and repeats every year. On $200,000, the same yield would mean about $390 of extra withholding a year in a US-listed fund. Run the result through the compound interest calculator or the DCA calculator to see the effect over decades, and compare it with any difference in fees, which can absorb part of the saving. The SPY page shows the US-listed fund's price and recent moves.
How big is the US estate tax risk for Singapore investors?
Large enough to plan for, because there is no treaty relief and the exemption for nonresidents is small.
The US can tax a nonresident's estate that includes more than $60,000 of US-situated assets, at rates rising to 40%, and the estate receives a credit of only $13,000, which offsets the tax on the first $60,000 of US assets. Shares of US companies are US property wherever the certificates are held, so a custodian in Singapore does not change the answer, and US-domiciled ETFs count too.
Worked example: US estate tax on $300,000 of US shares
- Tentative tax from the IRS rate schedule: $70,800 on the first $250,000, plus 34% of the next $50,000 = $87,800
- Less the nonresident credit: $87,800 − $13,000 = $74,800
- Filed on Form 706-NA, due nine months after death unless extended
Singapore abolished its own estate duty for deaths on or after February 15, 2008, so there is no Singapore tax to set the US bill against, and no treaty to reduce it. Heirs also face delays, since a US custodian generally waits for evidence that the US estate tax has been dealt with before releasing the assets.
The common responses are to hold US exposure through funds domiciled outside the US, such as Irish ETFs, or to keep US-domiciled holdings below the threshold. Which suits you depends on the size of the portfolio and your family situation, and the guide to US estate tax for nonresidents explains the filing process and other options.
What other risks should Singapore investors weigh?
Currency, custody and platform risk, alongside the ordinary risk that US share prices fall.
For reference, the live rate is 1 USD = 1.2795 SGD (Nov 2, 2026). A US holding is also a position in the US dollar, so a stronger Singapore dollar shrinks its value in Singapore terms even when the share price has not moved. The USD to SGD converter shows today's rate, the guide to currency risk on US assets explains how exchange rates feed into returns, and holding US dollars abroad covers where cash can sit between trades.
- Custody and nominee risk. Shares held in a nominee name depend on the broker's and custodian's record-keeping and asset segregation.
- Unlicensed platforms. A firm that is neither licensed nor exempt in Singapore, and not supervised elsewhere, leaves you with little recourse; check the MAS directory and alert list.
- Estate exposure. US-domiciled holdings above $60,000 can create a large bill and freeze the account for heirs.
- Trading treatment. Frequent, short-term dealing can turn tax-free gains into taxable trading income.
- Market falls. US shares can drop sharply and take years to recover; the guide to types of investment risk sets out the main kinds.