Tax residency in Vietnam

Are you a Vietnamese tax resident?

You are a Vietnamese tax resident if you meet either test: you are present in Vietnam for 183 days or more in a calendar year or in any 12 consecutive months from your first arrival; or you keep a registered permanent residence, or a lease of 183 days or more, in Vietnam and cannot prove you are tax-resident elsewhere. Meet neither and you are a non-resident.21

The distinction matters because the two statuses are taxed in completely different ways. A tax resident pays personal income tax on worldwide employment income at progressive rates running from 5% to 35%. A non-resident pays a flat 20% on Vietnam-source employment income only, with no personal or dependant deductions.1

Residency is tested individually and can change from year to year as your days in the country change. It is purely a tax concept — separate from your visa, your work permit and your social-insurance position, each of which follows its own rule. This page explains the test, shows what each status costs at the same salary, and sets out how a double-tax treaty can step in when two countries both call you resident. For the full resident rate schedule and deductions, see Vietnam personal income tax for 2026.

The residency test: 183 days or a qualifying home

Vietnamese law gives two independent ways to become a tax resident. Satisfying either one makes you resident for the period in question; you do not need both.2

The second limb catches people who do not clock 183 days but clearly live in Vietnam — for example, someone who keeps a long-term apartment here and travels frequently. It applies only when you cannot show that you are tax-resident somewhere else, so having a home and a residency certificate in another country generally keeps you out of it. The day-count limb is the one most people rely on, which is why "the 183-day rule" is the common shorthand for the whole test.2

Resident vs non-resident taxation

Once status is settled, two different tax regimes apply. A resident is taxed on worldwide employment income using the 2026 five-band progressive scale, after a monthly personal deduction of ₫15,500,000 and ₫6,200,000 for each dependant. A non-resident is taxed only on Vietnam-source employment income, at a flat 20%, with no family deductions at all.1

The practical upshot: at ordinary salary levels a non-resident almost always pays more tax, because the flat 20% starts from the first dong and there is no ₫15,500,000 personal deduction and no low 5% or 10% band to cushion it. Only at very high incomes, where the resident 35% top band bites above ₫100,000,000 of monthly assessable income, can a resident bill overtake the flat 20%. The worked example below shows the gap at a typical professional salary. For the band thresholds behind it, see personal income tax; for the insurance deducted first, see social insurance for foreign employees.

Worked example: same salary, resident vs non-resident

Take a foreign professional on a gross ₫80,000,000 a month in Region I, single with no dependants — the kind of hire whose status genuinely hangs on their day count. The resident column follows the 2026 five-band scale after the personal deduction; the non-resident column applies the flat 20%. Figures are illustrative and current as of October 2026.

Change nothing but residency and the monthly tax moves from ₫8,438,600 to ₫16,000,000 — on the same job, at the same pay. That is why getting status right from the first payslip matters, rather than correcting it at the annual finalisation. For the full employer-cost picture around this salary, see Vietnam payroll and employer costs.

Split-year and first-arrival timing

The trickiest period is the year someone arrives. If you reach 183 days within the calendar year of arrival, you are resident for that calendar year and the question is simple. If you do not, the second measure applies: residency is tested over the 12 consecutive months from the date you first arrived, which can straddle two calendar years.2

In that first-arrival case your first Vietnamese tax period runs for those 12 months from arrival rather than the calendar year; from the second year onward residency and filing follow the ordinary calendar year. Because the detail of how the first period is computed is set by regulation and can change, confirm the current rules before relying on a specific cut-off date.21

Day counting is about physical presence in Vietnam, so frequent regional travel, home leave and weekends abroad all reduce the count. Someone who splits the year across several countries can therefore end up a non-resident in each — which is exactly where a treaty tie-breaker, below, becomes useful. Status also interacts with the visa and permit timeline; see Vietnam work permits for how long a foreign hire can be sponsored to stay.

Treaty tie-breakers where dual residence arises

Domestic residency tests overlap between countries, so you can be resident in Vietnam and in your home country for the same period. Vietnam has signed double-taxation-avoidance agreements (DTAs) with more than 80 countries and territories, mostly based on the OECD model, and these treaties decide which country may tax a given type of income and relieve double taxation.4

When both countries claim you as resident, the treaty's tie-breaker tests settle it, applied in order: your permanent home, then your centre of vital interests, then your habitual abode, then your nationality, and finally mutual agreement between the two tax authorities. Employment income then typically follows the treaty's dependent-personal-services article. Because each treaty's wording governs, treat the ladder as the usual pattern rather than a fixed rule.3

Relief is never automatic. Since Circular 95/2026/TT-BTC took effect on 1 July 2026, a treaty benefit must be claimed with a tax-residency certificate and supporting evidence, and Vietnam's tax authority can look past the paperwork to the real substance before granting it.3 For the mechanics, see Vietnam's double-tax treaties.

One major exception catches many people: the United States and Vietnam signed an income-tax treaty in 2015, and Vietnam ratified it, but the US Senate never did — so it has never entered into force. As of October 2026 there is no operative US–Vietnam tax treaty, which means US taxpayers in Vietnam have no tie-breaker to fall back on and rely instead on domestic Vietnamese rules and the US foreign tax credit.5 We cover this in EOR Vietnam for US companies. Dual residence can also raise a separate corporate question — a permanent establishment — which turns on what the worker does, not where they are resident.

How EOR Vietnam applies the correct status to payroll

When EOR Vietnam is the legal employer, residency is not something the employee has to work out alone at year-end. We establish each employee's likely status at onboarding from their nationality, contract length and expected days in Vietnam, withhold personal income tax at the matching rate — the five-band progressive scale for a resident, the flat 20% for a non-resident — and reflect it on every payslip. Withheld tax is then declared quarterly to the tax authority and reconciled at the annual finalisation — a single quarterly rule that has applied to all employers since 1 July 2026 under Decree 252/2026/ND-CP, as of October 2026 — so a status that becomes clearer over the year is corrected in the ordinary filings rather than left as a surprise.7

Where a double-tax treaty applies and the employee can supply a residency certificate, we handle the treaty-relief claim under the current rules. Pricing is unaffected by any of this: EOR Vietnam's service fee is a flat US$149 per employee per month for a Vietnamese national (as of October 2026), with no setup, onboarding, offboarding, contract or payslip fees and no hidden fees — salary, statutory contributions and agreed employment payments are passed through at cost. A foreign national who needs a Vietnamese work permit, the case where residency questions most often arise, is quoted separately. A refundable security deposit equal to two months of the employee's employment cost is held for the duration of the engagement and returned at the end, less any unpaid amounts.

See how our employer-of-record service in Vietnam works end to end, or to get a costed quote with the right tax position built in, contact EOR Vietnam.

For the full set, browse all Vietnam employer guides.