U.S. Taxes in Taiwan: The Treaty Gap, Territorial Rules, and How to Avoid Double Tax

Americans in Taiwan must file a U.S. federal tax return every year, no matter how long they have lived in Taipei, Kaohsiung, or Taichung, because the United States taxes citizens on worldwide income regardless of where they live. The good news is that most expats in Taiwan owe little or nothing to the IRS once they apply the Foreign Earned Income Exclusion (up to $130,000 for the 2025 tax year) or the Foreign Tax Credit. Taiwan taxes residents on a largely territorial basis, and there is no U.S.-Taiwan tax treaty, so the way you offset the two systems matters more here than almost anywhere else.

You likely have a U.S. filing obligation in Taiwan if any of the following apply:

You earn income in Taiwan above the standard filing threshold for your status.
You hold foreign bank accounts that together topped $10,000 at any point in the year, which triggers an FBAR.
You are self-employed or run a business, where the threshold is just $400 of net profit.
You hold specified foreign financial assets above the FATCA reporting limits.

Living in Taiwan and not sure where your U.S. taxes stand?

Greenback helps Americans abroad file accurately and on time.

This guide covers what you owe on both sides, how to bring your U.S. bill to zero, and what life in Taiwan looks like for Americans who move there.

Taiwan at a Glance for U.S. Expats

Item	Detail
Primary local form	Individual Income Tax Return (National Taxation Bureau)
Tax year	Calendar year (January 1 to December 31)
Filing period for 2025 income	May 1 to June 1, 2026
Currency	New Taiwan Dollar (NT$ / TWD)
Tax system	Largely territorial for residents; worldwide income reached only through the Income Basic Tax
Residency threshold	183 days in Taiwan in a calendar year
Resident rates	Progressive, 5% to 40%
Standard VAT rate	5%
U.S. tax treaty	None
Totalization agreement	None

Like the United States, Taiwan files its income tax in arrears, so the return covering your 2025 income is filed in 2026 during the May 1 to June 1 window.

U.S. Citizens in Taiwan Still File a U.S. Return Every Year

U.S. citizens and green card holders in Taiwan file Form 1040 every year whenever their income exceeds the standard thresholds, the same as taxpayers inside the United States. Living abroad does not end your filing duty; it only changes which forms and exclusions you use.

Filing status (2025 tax year)	File a U.S. return if gross income is at least
Single	$14,600
Married filing jointly	$29,200
Married filing separately	$5
Self-employed (any status)	$400 net self-employment income

Living abroad gives you an automatic extension to June 15, with a further extension available to October 15 on request.

How Americans in Taiwan Can Reduce Their U.S. Tax Bill

Americans in Taiwan reduce their U.S. tax bill with two main tools: the Foreign Earned Income Exclusion and the Foreign Tax Credit. Because Taiwan’s headline rates can sit below comparable U.S. rates at lower income levels, the exclusion is often the simplest tool, while higher earners may prefer the credit.

The Foreign Earned Income Exclusion lets you exclude up to $130,000 of earned income for 2025 ($132,900 for 2026) on Form 2555. To claim it, you qualify through either the Physical Presence Test (330 full days abroad in a 12-month period) or the Bona Fide Residence Test (a full tax year of genuine residence in Taiwan).
The Foreign Tax Credit gives you a dollar-for-dollar credit on Form 1116 for income tax you pay to Taiwan. It is the stronger choice for higher earners, for income above the exclusion cap, and for passive income that the exclusion does not cover. Unused credits carry forward up to 10 years.

Consider Mei, an American English teacher in Taipei earning the equivalent of $48,000. Her income falls entirely under the FEIE, so she excludes it all and owes $0 in U.S. income tax. She still files Form 1040 and Form 2555 to claim the exclusion, because it is never automatic.

Taiwan Taxes Residents on a Largely Territorial Basis

Taiwan taxes residents mainly on Taiwan-source income, reaching foreign-source income only through a separate alternative tax. You become a Taiwan tax resident when you spend 183 days or more in the country during a calendar year, after which your Taiwan-source income is taxed at progressive rates. Non-residents (under 183 days) instead pay a flat 18% on Taiwan salary income.

This territorial design is why many expats find their Taiwan tax bill lower than expected on income earned outside Taiwan, and why correctly coordinating the FEIE and Foreign Tax Credit makes the difference between owing nothing and overpaying.

Taiwan Income Tax Rates Run From 5% to 40%

Resident individuals in Taiwan pay progressive income tax, ranging from 5% on the first NT$590,000 of taxable income to 40% on income above NT$4,980,000, across five brackets for the 2025 tax year.

Taxable income (NT$)	Rate
0 to 590,000	5%
590,001 to 1,330,000	12%
1,330,001 to 2,660,000	20%
2,660,001 to 4,980,000	30%
Above 4,980,000	40%

Non-residents are taxed differently:

Non-resident income	Rate
Salary income	18% flat
Most other Taiwan-source income	20% (varies by type)

How Taiwan Income Tax Is Calculated on a Salary

Taiwan income tax on a salary is calculated on your taxable income after deductions, not your gross pay, so the effective rate most employees pay is well below the headline bracket. A resident first subtracts a personal exemption, a standard deduction, and a salary special deduction before the progressive rates apply.

Deduction (2025, single filer)	Amount (NT$)
Personal exemption	97,000
Standard deduction	131,000
Salary special deduction (cap)	218,000
Total subtracted before tax	446,000

Consider Alex, a single American earning NT$1,200,000 in Taipei. After subtracting NT$446,000 in deductions, the taxable income is NT$754,000. The first NT$590,000 is taxed at 5% (NT$29,500) and the remaining NT$164,000 at 12% (NT$19,680), for about NT$49,180 in Taiwan tax, an effective rate near 4% of gross pay. Many expats receive a Taiwan tax refund if their employer withheld more than this final figure.

The Income Basic Tax Can Pull Your Foreign Income Into Taiwan’s Net

Taiwan’s Income Basic Tax (IBT) is a 20% alternative minimum tax that can bring your foreign-source income into Taiwan’s tax net once it crosses set thresholds. It is the trap most expat guides miss, because day-to-day salary planning ignores it.

Foreign income is added to your IBT base only when two conditions are met: your household’s total foreign-source income reaches NT$1 million in the year, and your overall basic income exceeds the NT$7.5 million exemption. Below either threshold, your foreign income is not subject to Taiwan’s tax.

Consider David, a U.S. tech executive in Hsinchu with NT$6 million of Taiwan salary and NT$2 million of U.S. dividend income. His foreign income clears the NT$1 million test, but his total basic income (NT$8 million) only modestly exceeds the NT$7.5 million exemption, so only the excess is exposed to the 20% IBT. He claims a credit in Taiwan for U.S. tax already paid on those dividends, and on the U.S. side, he reports the same dividends on Form 1040 and offsets them with his own Foreign Tax Credit. Coordinating both directions is what prevents true double taxation.

There Is No U.S.-Taiwan Tax Treaty, but Relief Legislation Is Moving

The United States and Taiwan do not have a comprehensive income tax treaty because the two do not have formal diplomatic relations. That absence has real consequences: no treaty-reduced withholding rates, no treaty tie-breaker rules, and no Social Security totalization agreement to prevent double social tax for the self-employed.

Relief is in progress. In January 2025, the U.S. House passed the United States-Taiwan Expedited Double-Tax Relief Act by a vote of 423 to 1, which would deliver treaty-like benefits on wages, dividends, interest, and pensions. A Senate companion bill (S. 199) is pending in the Senate Finance Committee, and as of mid-2026, it has not been enacted into law, so the FEIE and Foreign Tax Credit remain your tools for avoiding double taxation today.

Self-employed Americans should plan carefully. Without a totalization agreement, you generally owe U.S. self-employment tax of 15.3% on net profit, even while contributing to Taiwan’s labor and health insurance, and no foreign income exclusion erases self-employment tax.

Taiwan’s Other Taxes Include a 5% VAT and Estate and Gift Tax

Beyond income tax, Taiwan applies a 5% value-added tax on most goods and services, one of the lowest rates in Asia, which is built into the prices you pay rather than added at checkout. Two other taxes matter for Americans building a life or a family legacy in Taiwan.

Estate tax: progressive at 10% to 20%, with a per-decedent exemption of around NT$13.33 million for 2025.
Gift tax: progressive starting at 10%, with an annual donor exemption of around NT$2.44 million for 2025.

There is no U.S.-Taiwan estate tax treaty, so Americans with assets in both countries should plan their cross-border estates carefully, as the U.S. and Taiwan estate taxes can apply to overlapping assets.

U.S. Social Security and retirement income are taxable by the United States while you live in Taiwan, and Taiwan generally does not tax that foreign-source income unless it triggers the Income Basic Tax. Because there is no treaty, none of your U.S. retirement income gets special rate relief in Taiwan, and Taiwan cannot reduce U.S. tax on a U.S. pension.

If you retire in Taiwan and draw a U.S. pension, IRA, or 401(k), you report that income on your U.S. return as usual. Roth and traditional accounts keep their U.S. treatment. Coordinate withdrawals with the NT$1 million foreign-income and NT$7.5 million basic-income IBT thresholds so a large distribution year does not create an unexpected Taiwan liability.

Filing Deadlines for Americans in Taiwan

Obligation	Deadline
Taiwan income tax (2025 income)	May 1 to June 1, 2026
U.S. Form 1040 (standard)	April 15, 2026
U.S. Form 1040 (automatic expat extension)	June 15, 2026
U.S. Form 1040 (extension on request)	October 15, 2026
FBAR (FinCEN Form 114)	April 15, 2026, automatic extension to October 15

U.S. Tax Forms Americans in Taiwan Need to File

The core U.S. forms for Americans in Taiwan are Form 1040 and either Form 2555 or Form 1116 to remove double taxation, and FBAR or Form 8938 when foreign accounts and assets exceed reporting thresholds.

Form	Purpose	When it applies
Form 1040	Annual federal return	Income above the filing threshold
Form 2555	Foreign Earned Income Exclusion	Claiming the FEIE
Form 1116	Foreign Tax Credit	Offsetting Taiwan income tax
FinCEN 114	Foreign account report/FBAR	Foreign accounts over $10,000 combined
Form 8938	FATCA asset report	Foreign assets above the FATCA thresholds

If you have missed past returns, the Streamlined Filing Compliance Procedures let eligible expats catch up on prior years without penalties by certifying the lapse was non-willful.

Life in Taiwan for Americans

Taiwan pairs a low cost of living, world-class healthcare, and strong personal safety with one of Asia’s most welcoming environments for U.S. expats. Whether you are teaching, working in tech around Hsinchu, or retiring, the practical building blocks below shape daily life.

Visas and Residency for Americans

U.S. citizens can enter Taiwan visa-free for up to 90 days for tourism or business, but living or working there requires a permit. Many professionals use the Taiwan Employment Gold Card, a combined open work permit, residence visa, and Alien Resident Certificate (ARC) valid for up to three years, with talent-act reforms in 2026 widening eligibility and shortening the path to permanent residence. Once you hold an ARC and pass 183 days, you become a Taiwan tax resident.

Cost of Living in Taiwan

A comfortable single-person lifestyle in Taipei runs around $1,400 a month, and costs drop further in Taichung, Tainan, and Kaohsiung. A one-bedroom apartment in Taipei typically rents for $500 to $1,500 a month, depending on the neighborhood, while groceries, public transit, and eating out are inexpensive by U.S. standards. The low 5% VAT keeps everyday prices down.

Healthcare and National Health Insurance

Taiwan’s National Health Insurance (NHI) is a single-payer system covering roughly 99.9% of residents at a low cost. Legally employed foreigners enroll from their first day of work through their employer, while ARC holders without an employer, including Gold Card holders and retirees, enroll after six continuous months of residence. NHI premiums and most U.S. medical costs are personal expenses, not deductions against your Taiwan tax.

Best Places for Americans to Live in Taiwan

Taipei: the capital, with the largest expat community, best transit, and most English-friendly services.
Hsinchu: Taiwan’s tech hub, popular with engineers and corporate assignees near the Science Park.
Taichung: central, lower-cost, with a mild climate and a growing international scene.
Tainan: historic, affordable, and known for food and a slower pace.
Kaohsiung: a warm southern port city with lower rents and a relaxed lifestyle.

Safety and Daily Life

Taiwan is consistently rated one of the safest places in Asia for foreigners, with low violent crime, reliable infrastructure, and a high quality of life. English is common in major cities and workplaces, public transit is excellent, and the expat community is well established, which makes the transition smoother than in many destinations.

Frequently Asked Questions for Americans in Taiwan

Do I have to keep filing U.S. taxes if I live in Taiwan permanently?

Yes. U.S. citizens file every year on worldwide income regardless of how long they stay abroad. The obligation ends only if you renounce citizenship.

Will I be double-taxed in Taiwan with no treaty?

No, the FEIE and the Foreign Tax Credit together offset most or all of the U.S. tax on income that is already taxed in Taiwan, even though no treaty exists.

Do I report my Taiwan bank accounts to the U.S.?

Yes, if your foreign accounts combined exceeded $10,000 at any point during the year, you file an FBAR, and possibly Form 8938 if your assets are larger.

Is my foreign income taxed in Taiwan?

Only through the Income Basic Tax, and only when your household’s foreign income reaches NT$1 million, and your basic income exceeds the NT$7.5 million exemption.

How much income tax will I pay in Taiwan?

After the personal exemption, standard deduction, and salary special deduction, most salaried expats pay an effective rate well under 10%, with rates running from 5% to 40% on taxable income.

Do Americans need a visa to live in Taiwan?

No visa is needed to visit for up to 90 days, but living or working there requires a residence permit, such as the Employment Gold Card or an employer-sponsored ARC.

Is U.S. Social Security taxed if I retire in Taiwan?

Your U.S. Social Security and pension income is still taxable by the United States, and Taiwan generally will not tax that foreign income unless it triggers the Income Basic Tax.

File With Confidence, Move Forward With Peace of Mind

Taiwan’s no-treaty status and Income Basic Tax make coordination between the two tax systems genuinely tricky, and getting the FEIE-versus-credit decision right can save you thousands. Our team of expert CPAs and IRS Enrolled Agents handles expat returns at a clear, flat fee, so you know your taxes are done right.

Get Your U.S. Taxes in Taiwan Done Right.

Greenback helps Americans in Taiwan file with a dedicated CPA or IRS Enrolled Agent at a clear, flat fee.

This article is for informational purposes only and does not constitute tax or legal advice. Tax rules change, and individual situations vary, so consult a qualified tax professional about your specific circumstances.