Tax Atlas

Am I a tax resident of Vietnam?

Short answer: usually yes once you cross 183 daysNational Assembly of Vietnam, Personal Income Tax Law No. 109/2025/QH15 (Official Gazette no. 37, 22 January 2026)“Có mặt tại Việt Nam từ 183 ngày trở lên tính trong 01 năm dương lịch hoặc tính theo 12 tháng liên tục kể từ ngày đầu tiên có mặt tại Việt Nam”View source · accessed 2026-10-24 in a year. But a day count is only the headline test — a home, family, or economic ties can pull you in sooner, and staying under it does not automatically keep you out.

Verified October 24, 2026 by Henning Stanger, Authorized Accountant (Autorisert regnskapsfører) · not tax advice

The residency test in Vietnam

The number that decides it: 183 daysNational Assembly of Vietnam, Personal Income Tax Law No. 109/2025/QH15 (Official Gazette no. 37, 22 January 2026)“Có mặt tại Việt Nam từ 183 ngày trở lên tính trong 01 năm dương lịch hoặc tính theo 12 tháng liên tục kể từ ngày đầu tiên có mặt tại Việt Nam”View source · accessed 2026-10-24. Cross that in a year, and Vietnam counts you as tax resident. A person present in Vietnam for 183 days or more in a calendar year is a tax resident, and arrival and departure days each count as one day. A second presence test, 183 days within the 12 consecutive months from first arrival, is recorded under residency_test.

Tax year period
1 January to 31 December (as of 2026)PwC Worldwide Tax Summaries, Vietnam individual: Tax administration (last reviewed 23 September 2026)“The Vietnamese tax year is the calendar year.”View source · accessed 2026-10-24 — The Vietnamese tax year is the calendar year for resident salary and business income. Capital income, capital and real estate transfers, prizes, royalties and inheritances are taxed each time the income arises.
First tax period on arrival
A new arrival with under 183 days in the arrival calendar year but 183 days within 12 months of arrival gets a first tax period of those 12 months. From the second year the calendar year applies and tax already counted on overlapping months is deducted. [source]PwC Worldwide Tax Summaries, Vietnam individual: Tax administration (last reviewed 23 September 2026)“However, where in the calendar year of first arrival, an individual is present in Vietnam for less than 183 days, one's first tax year is the 12-month period from the date of arrival. Subsequently, the tax year is the calendar year.”View source · accessed 2026-10-24
Residency test
Residence in Vietnam is established by presence for 183 days, either in the calendar year or in 12 consecutive months from first arrival, or by having a regular home there. Someone with a regular home but under 183 days who cannot show residence elsewhere is still treated as resident. [source]National Assembly of Vietnam, Personal Income Tax Law No. 109/2025/QH15 (Official Gazette no. 37, 22 January 2026)“Có nơi ở thường xuyên tại Việt Nam, bao gồm có nơi ở đăng ký thường trú hoặc có nhà thuê để ở tại Việt Nam theo hợp đồng thuê có thời hạn”View source · accessed 2026-10-24

If you're close to the line

A day count only helps if the count is right. Travel that crosses midnight, short trips home, and which end of a stay counts as arrival or departure all change the total — and get miscounted constantly.

The free 183 Days residency tracker logs your actual travel and checks it against Vietnam’sverified threshold, so you are working from a real count instead of a guess.

What residency actually changes

Once you are tax resident, Vietnam generally taxes your worldwide income, topping out at 35%KPMG GMS Flash Alert 2026-040, Vietnam new Personal Income Tax Law (24 February 2026)“Monthly thresholds are increased, with the lowest bracket now up to VND 10 million (5 percent), and the top bracket for monthly income above VND 100 million (35 percent).”View source · accessed 2026-10-24. For the 2026 tax year the top marginal rate on resident salary is 35% on taxable income above VND 100 million a month, under a five-band scale that replaced the seven-band scale. The Law applies only the scale to salary with no surtax or local add-on, and non-residents pay a flat 20% instead. Stay a non-resident, and Vietnam typically taxes only income sourced there.

Full picture: Vietnam tax guide.

Frequently asked questions

How many days can I spend in Vietnam before becoming a tax resident?

183 days. A person present in Vietnam for 183 days or more in a calendar year is a tax resident, and arrival and departure days each count as one day. A second presence test, 183 days within the 12 consecutive months from first arrival, is recorded under residency_test. Arrival and departure days are counted according to Vietnam’s own rule, not a universal convention — check the source below for the exact method.

Can I become a tax resident of Vietnam even under the day count?

Yes, in some cases. Vietnam also has rules beyond the simple day count — see the detail below. A permanent home, family, or economic ties can trigger residency independent of days spent.

What does tax residency in Vietnam actually cost me?

Vietnam’s income tax tops out at 35%. For the 2026 tax year the top marginal rate on resident salary is 35% on taxable income above VND 100 million a month, under a five-band scale that replaced the seven-band scale. The Law applies only the scale to salary with no surtax or local add-on, and non-residents pay a flat 20% instead. Residency is what makes you liable for it in the first place — non-residents are typically taxed only on Vietnam-source income, not worldwide income.

Sources

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When to talk to an advisor

This page maps Vietnam’s general residency test. It cannot weigh your treaty position, your specific ties, or the timing of a move. If meaningful money depends on the answer, have a qualified advisor in Vietnam (and in your home country) review your situation before you act.