VT vs VOO: Tax and Estate Tax for Non-U.S. Investors (30% Dividend Withholding, the US$60,000 U.S. Estate Tax Threshold, and Irish UCITS ETFs Compared)

VT covers the global stock market and VOO the 500 largest U.S. companies, and comparisons usually focus on returns and diversification. For Taiwanese and other non-U.S. investors, there is a difference between VT and VOO that often gets skipped: dividends are withheld at 30% by the U.S., and the non-U.S. dividends inside VT are taxed once before that. Both funds also count as U.S.-situated property, so holdings above US$60,000 at death fall within the scope of U.S. estate tax.

The short answer: as of 14 October 2026, there is no tax treaty or substitute legislation in force between Taiwan and the U.S., so VOO and VT distributions are withheld at 30%. Under this post’s assumptions, a year’s costs plus dividend tax per US$100,000 come to about US$342 for VOO and about US$616 for VT; Irish-domiciled UCITS ETFs tracking the same S&P 500 and global markets come to about US$230 and US$340. This is a comparison of rules and calculations. Which fund to buy, or whether to switch, still depends on your status, the size of your assets, your broker and your inheritance arrangements.

This post summarizes rules and regulations. It is not investment, tax or legal advice and does not recommend any ETF. Fund figures were read from Vanguard’s official website on 14 October 2026 (the date of each figure is noted in the text), and the laws and the progress of legislation were checked with the IRS, the U.S. Congress, Taiwan’s Ministry of Finance and the Laws & Regulations Database of Taiwan on the same day. The returns, yields and foreign withholding rates in the calculations are assumptions, not forecasts or guarantees; distributions, expense ratios and tax law all change.

VT and VOO at a glance

Both are Vanguard ETFs registered in the U.S. that pay dividends quarterly. The difference is what they track: VOO holds only large U.S. companies, while VT covers the global stock market, with the U.S. at about 60%.

Sources: Vanguard’s VT page and VOO page, read on 14 October 2026. The last 4 quarters are the four distributions from December 2025 to September 2026. All of the 6 most recent distributions Vanguard lists are dividends, with no capital gains distributions. The distribution yield is my own calculation, the four quarters’ total divided by NAV, not a yield published by Vanguard.

VT’s country weights (31 August 2026): U.S. 62.0%, Japan 5.9%, Taiwan 3.3%, U.K. 3.2%, Canada 3.1%, with the rest spread across other countries. For why global diversification matters, see 10 Principles of Index Investing.

VT and VOO dividend tax: 30% withholding for non-U.S. investors

Still 30% for Taiwanese investors, even with a W-8BEN

The IRS rule for U.S.-source income paid to nonresident aliens is that U.S.-source dividends are withheld at 30% or a lower treaty rate, and the beneficial owner must give the withholding agent a Form W-8BEN to claim a treaty rate.

VT and VOO are both U.S.-registered funds, so the distributions they pay you are U.S.-source dividends, even if part of VT’s distribution comes from Japanese or British companies. For Taiwanese investors, the W-8BEN certifies non-U.S. status; since Taiwan has no treaty rate to claim, the withholding rate is still 30%.

U.S.-Taiwan double taxation relief: not in effect as of 14 October 2026

The U.S. Congress’s United States-Taiwan Expedited Double-Tax Relief Act is meant to address this. According to the record of H.R.33 in the U.S. Congress, the House passed it 423 to 1 on 15 January 2025, and on 16 January it went to the Senate and was referred to the Finance Committee; the Senate’s own version, S.199, was introduced on 23 January 2025 and also referred to the Finance Committee. A check of the congressional database on 14 October 2026 showed that the latest action on both bills was still at that point, and neither has become law.

The text of H.R.33 as passed by the House states that the tax rate on dividends received by qualified residents of Taiwan is 15% (10% for companies in which they hold 10% or more, which does not apply to fund distributions). It also provides that these benefits apply only after the U.S. Treasury confirms that Taiwan provides reciprocal benefits to U.S. persons. A 12 March 2025 statement from Taiwan’s Ministry of Finance also notes that the bill must pass the Senate and be signed by the President to take effect in the U.S., and that a follow-up agreement must complete the procedures of Taiwan’s Treaty Act.

Until those steps are done, the calculations here use 30% throughout.

VT dividends are taxed twice: foreign withholding plus U.S. withholding

VOO holds only U.S. companies, so dividends are not withheld when they reach the fund; 30% is withheld once, when the fund pays you.

VT’s non-U.S. portion has an extra layer. When Japanese, British, Taiwanese and other companies pay dividends to VT, each country first withholds tax under its own law and its tax treaty with the U.S., and VT receives the amount after withholding; this tax is reflected in the fund’s NAV. When VT then pays dividends to you, the U.S. withholds 30% again, no matter which country the money originally came from.

U.S. tax law has a mechanism that lets a fund pass foreign taxes paid through to shareholders for a credit, but under Section 853 of the Internal Revenue Code, a fund can elect it only if more than 50% of its assets at the close of the tax year are stock or securities of foreign corporations. VT’s non-U.S. share is 37.7% (31 August 2026), so by inference from this threshold VT cannot make the election. The mechanism is also for people who file U.S. tax returns; non-U.S. investors only have tax withheld on distributions and do not file U.S. returns, so it would not help them anyway.

How much dividend tax drags on every US$100,000 a year

To turn the two layers of tax into numbers that can be compared, I worked through the following with US$100,000 held for one year.

Assumptions

• Distribution yields are the last-four-quarter yields from the table above: VOO 1.04%, VT 1.52%. Fund distributions are already net of expenses, so the “pre-tax dividend yield” of U.S. stocks is VOO’s 1.04% plus its 0.03% expense ratio, about 1.07%.
• VT’s U.S. portion (62.0%) has the same dividend yield as VOO; after subtracting the U.S. portion, the rest of the distribution is treated as coming from non-U.S. stocks.
• The average source-country withholding rate on VT’s non-U.S. stocks is assumed to be 10%. The actual rate depends on each country’s tax law, its tax treaty with the U.S. and whether the fund can reclaim tax. This is a figure I set for the calculation, not data published by Vanguard.
• For Irish-domiciled UCITS ETFs, Vanguard’s VUAA (S&P 500, accumulating) and VWRA (FTSE All-World, accumulating) are used as examples. U.S. dividends are withheld at 15% at the fund level under the U.S.-Ireland tax treaty, and non-U.S. withholding is assumed to be 10%, as for VT. VWRA’s U.S. weight is 61.7% (31 August 2026).
• Trading fees, bid-ask spreads, currency conversion, tracking error and Taiwanese tax are not included.

Results (per US$100,000, one year)

What the calculation shows:

1. Of VT’s US$455 in U.S. withholding, about US$274 is levied on non-U.S. dividends (non-U.S. distributions of about US$912 × 30%). These dividends were already taxed once in their source country; that is the cost of the “two layers”.
2. Tracking the same S&P 500, VOO and VUAA differ by about US$112; tracking the same global market, VT and VWRA differ by about US$276. The U.S.-registered fund has the lower expense ratio in each pair, but dividend tax reverses the gap.
3. The roughly US$274 gap between VT and VOO cannot simply be read as “VT is more expensive”: VT holds different assets and has a higher dividend yield, and part of the gap comes from tax on the extra dividends VT pays out. Compare funds that track the same kind of assets.
4. The higher the distribution yield, the bigger the effect of dividend tax. The yields used above are from the last four quarters and will change with the market.

At US$100,000, a gap of a few hundred dollars a year is not large relative to overall returns; it becomes noticeable as assets grow and the holding period lengthens. For large positions, estate tax, covered next, may matter more.

U.S. estate tax: VT and VOO are both U.S. assets

The US$60,000 threshold and tax rates

The IRS guidance on estate tax for nonresidents who are not U.S. citizens says estate tax applies to the transfer of property situated in the U.S. If the value of U.S.-situated property exceeds the US$60,000 filing threshold, the executor must file Form 706-NA, and this threshold is not indexed to inflation.

Which shares count as U.S.-situated property? The Instructions for Form 706-NA (September 2025 revision) say that stock of a corporation organized under U.S. law is property situated in the U.S., while stock of other corporations is situated outside the U.S., regardless of where the certificates are kept. VOO and VT are both U.S.-registered funds, so they are U.S.-situated property. The instructions do mention that shares of regulated investment companies (RICs) could be partly treated as property outside the U.S., but this applies only to deaths after 2004 and before 2012.

Rates follow Table A in the Instructions for Form 706 (July 2026 revision), starting at 18% and reaching 40% on the portion above US$1 million. The Form 706-NA instructions state that the unified credit is generally at most US$13,000, exactly the tax on US$60,000.

This table is my rough estimate calculated directly from Table A. It does not deduct debts, expenses or other deductible items, and it does not consider other U.S.-situated property. The actual tax must be calculated under the rules in force at filing.

Credit for foreign estate tax in Taiwan

Under Article 1 of Taiwan’s Estate and Gift Tax Act, when a national who habitually resides in Taiwan dies, the entire estate inside and outside Taiwan is subject to estate tax. Article 11 of the Estate and Gift Tax Act provides that estate tax already paid on foreign property under the law of the country where it is located can be credited against the estate tax payable in Taiwan, if you present a tax payment certificate issued by that country’s tax authority and have it authenticated; the credit cannot exceed the increase in Taiwanese tax caused by including that foreign property. So paying U.S. estate tax does not mean no tax is due in Taiwan; the rate difference between the two and the paperwork both need to be considered.

Irish-domiciled UCITS ETFs: how the rules differ

Many non-U.S. investors compare Irish-domiciled UCITS ETFs with VT and VOO. The table below compares only the rules and does not imply that either is better.

Some further notes:

• The 15% U.S.-Ireland dividend rate comes from the IRS tax treaty rate table. Whether a fund actually gets it depends on whether the fund itself qualifies under the treaty; this post infers it from Vanguard’s factsheets and common practice and did not check each fund’s tax documents.
• Irish Revenue’s Tax and Duty Manual on investment funds (updated January 2026) states that funds do not need to deduct “exit tax” on units traded through a recognised clearing system (such as ETFs), nor for non-resident holders who meet the declaration requirements.
• That Irish ETF shares are not U.S.-situated property is an inference from the Form 706-NA instructions’ rule that “stock of other corporations is situated outside the U.S.” They may still fall under other countries’ estate tax rules, and Taiwanese estate tax still applies.
• VWRA data come from Vanguard’s FTSE All-World UCITS ETF factsheet and VUAA data from the S&P 500 UCITS ETF factsheet, both dated 31 August 2026; both funds are domiciled in Ireland.
• To trade London-listed ETFs, your broker must be able to place orders on the London Stock Exchange. For details such as fees and idle cash when holding Irish ETFs at IBKR, see IB01 vs SGOV.
• If you later become a U.S. tax resident, Irish funds may become PFICs and reporting gets much more complicated; IB01 vs SGOV also covers this.

On the Taiwan side: overseas income and the Alternative Minimum Tax

After U.S. withholding, there is also the Taiwan side to consider. For Taiwanese tax residents, VT and VOO distributions are overseas income under the Alternative Minimum Tax: if a household’s total overseas income for the year is under NT$1 million, it is not added to basic income. The threshold and the calculation are explained in full in the Taiwan tax section of IB01 vs SGOV.

Article 13 of the Income Basic Tax Act provides that income tax already paid on overseas income under the tax law of the source country can be credited against the basic tax. The credit cannot exceed the increase in basic tax caused by including that income, and you must present a tax payment certificate for the same year issued by the source country’s tax authority, with authentication. The 30% U.S. withholding may be creditable here; but if your overseas income does not reach the threshold, or the calculation produces no basic tax, there is no Taiwanese tax for that withholding to be credited against.

Accumulating Irish ETFs do not distribute; returns are reflected in NAV and only become overseas income when you sell and realize them, so you have more control over the timing. That does not make them tax-free.

FAQ

How much U.S. tax is withheld on VOO or VT dividends for Taiwanese investors?

Generally 30%. The IRS requires U.S.-source dividends paid to nonresident aliens to be withheld at 30% or a lower treaty rate. There is no tax treaty or substitute legislation in force between Taiwan and the U.S., so there is no lower rate to claim.

Has the U.S.-Taiwan double taxation relief taken effect?

Not as of 14 October 2026. The U.S. House passed H.R.33 on 15 January 2025; the Senate received it and referred it to the Finance Committee, and the Senate's own version, S.199, is also still in committee. The bill states that the dividend tax rate for Taiwanese residents would fall to 15%, but it needs to pass the Senate and be signed by the President, and the U.S. Treasury must also confirm that Taiwan provides reciprocal benefits.

Why is the dividend tax burden heavier on VT than on VOO?

About 38% of VT is non-U.S. stocks. Dividends from these stocks are first withheld once in their source country, and when the fund pays out what remains to you, the U.S. withholds 30% again. Under this post's assumptions, a year's costs plus dividend tax per US$100,000 come to about US$616 for VT and about US$342 for VOO, but the two hold different assets, so this number alone is not a fair comparison.

Do non-U.S. investors holding VOO or VT need to worry about U.S. estate tax?

Yes. VOO and VT are both funds organized under U.S. law, and the IRS treats shares of U.S. corporations as U.S.-situated property. When a nonresident who is not a U.S. citizen dies with U.S.-situated property worth more than US$60,000, a Form 706-NA must be filed; rates run from 18% to 40%, and the tax due is what remains after a US$13,000 credit.

How are Irish-domiciled UCITS ETFs different for tax?

The U.S.-Ireland tax treaty lowers the withholding rate on U.S. dividends to 15%, borne at the fund level; Irish funds generally do not deduct Irish tax for non-Irish residents. Under the IRS rules on where shares are situated, shares of corporations not organized under U.S. law are not U.S.-situated property. The trade-off is higher expense ratios, such as 0.14% for VWRA and 0.07% for VUAA, and you need a broker that can trade on the London Stock Exchange.

Are VT and VOO dividends taxed in Taiwan?

For Taiwanese tax residents, VT and VOO distributions are overseas income under the Alternative Minimum Tax: if a household's total overseas income for the year is under NT$1 million, it is not added to basic income. U.S. tax already withheld can be credited against the basic tax when the rules are met, but the credit is capped and requires tax payment certificates and authentication.