Taiwan's 183-Day Tax Residency Rule

At least 183 days in a taxable year is one route to Taiwanese tax residency if you have no domicile there. Here is exactly how the count works.

Last verified: August 2026

In short: if you have no domicile in Taiwan, staying an aggregate of 183 days or more in a taxable year makes you a resident for income tax purposes, so the line is crossed on day 183. Taiwan counts from passport entry and exit stamps, excluding the arrival day and including the departure day, which is the same as counting nights. People with household registration in Taiwan are covered by a different test with a much lower day count.

Threshold: 183 days or more, so day 183
Counting window: Taxable year, which is the calendar year
A day counts if: You stayed overnight; the arrival day is not counted
Other residence test: Household registration plus habitual residence
Applies to: Individuals with no domicile in Taiwan
Legal basis: Income Tax Act, Article 7

The rule

Taiwan's Income Tax Act defines a resident in two limbs, and the day count is the one that applies to people with no domicile in the country. Three points decide most real cases:

The threshold is inclusive. The Chinese text requires a stay aggregating to a full 183 days, and the tax authorities publish the test with an "at least" comparison, so day 183 crosses the line. The Ministry of Justice's English translation says "more than 183 days", which is a loose rendering of the binding Chinese and is one day out.
The arrival day does not count. The National Taxation Bureau computes a stay from passport entry and exit stamps, excluding the date of arrival and including the date of departure.
Multiple entries add up. If you enter and leave several times in a taxable year, the days accumulate. They do not need to be consecutive.

How to count it

Because the arrival day is excluded and the departure day is included, the count comes to the same thing as counting the nights you spent in Taiwan. The taxable year runs from 1 January to 31 December.

List every Taiwan trip with its entry and exit dates.
For each trip, count the days after your arrival day up to and including your departure day.
Add the trips together within a single taxable year.
If the year total reaches 183, the day-count test is met.

Example. You enter on 1 March and leave on 1 July, then enter again on 1 October and leave on 1 December.

The first trip counts 2 March to 1 July, which is 122 days. The second counts 2 October to 1 December, which is 61 days. The year total is 183, which meets the test exactly at the line.

Beyond the day count

This 183-day test is only one of the two limbs, and which limb applies to you depends on your domicile. If you have household registration in Taiwan, a Ministry of Finance ruling applies a much lower threshold instead: staying 31 days or more in the taxable year makes you a resident, and even a stay of 1 to 30 days can do so if your centre of life and economic interests is in Taiwan, judged on family, work, property and similar ties. Do not read the 183-day figure as applying to that situation. A separate 90-day rule is often confused with residency and is not a residency test at all: it decides whether a non-resident's pay from a foreign employer for work done in Taiwan is Taiwanese-source income, and it runs the other way, applying when a stay does not exceed 90 days. If another country also claims you, a double-tax treaty may decide residency through tie-breaker rules such as permanent home and centre of vital interests.

AtlasDays tracks Taiwan's 183-day rule automatically

Log your trips once. The Taiwan Tax Residency tracker counts the taxable year for you on the same basis Taiwan uses, leaving out the arrival day, privately on your iPhone, and warns you before you reach day 183.

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FAQ

How many days can you stay in Taiwan without becoming a tax resident?

Up to 182 counted days in a taxable year if you have no domicile there. Reaching 183 is enough, and because the arrival day is excluded, a stay of 183 nights is what takes you there.

Does the arrival day count in Taiwan?

No. The tax authorities compute a stay from entry and exit stamps, excluding the date of arrival and including the date of departure.

Is the 90-day rule a residency threshold?

No. It decides whether a non-resident's remuneration from a foreign employer for services performed in Taiwan counts as Taiwanese-source income. It does not make anyone a resident.

About this article: AtlasDays provides general information, not legal, tax, or immigration advice. Rules change and outcomes depend on your circumstances, so never rely on it alone: check the linked official source or ask a qualified professional.