Vietnam’s 183-day rule divides foreign residents into two tax categories with very different obligations. Cross that threshold and you’re a Vietnamese tax resident — worldwide income taxed at progressive 5–35%. Stay under it and you pay a flat 20% only on Vietnam-sourced income. The line isn’t always obvious, but the math is.
I’ve been tracking expat visa and tax situations in Central Vietnam for several years. The 183-day question comes up constantly — especially among people who end up staying longer than their original plan.
| Tax Resident | Non-Resident | |
|---|---|---|
| Threshold | ≥183 days in Vietnam | <183 days |
| Income taxed | Worldwide income | Vietnam-sourced only |
| Rate | Progressive 5–35% | Flat 20% |
| Personal deduction (2026) | VND 15.5M/month | None |
| Annual PIT filing | Required by April 30 | Not required |
| DTA applies | Yes | Limited |
How Does Vietnam Count the 183 Days?
Vietnam uses two independent tests — you become a tax resident if you pass either one:
- Calendar year test: 183+ days present in Vietnam between January 1 and December 31.
- Rolling 12-month test: 183+ days in any consecutive 12-month period starting from your first arrival date.
Per PwC Vietnam Tax Summaries (March 2026), arrival day and departure day both count as full days of presence. Short trips abroad (a regional visa run, a weekend in Thailand) do not reset your counter; days accumulate across all entries.
The rolling 12-month test catches people who arrive in October and stay into the following year: even two months abroad in between may still leave 183 Vietnamese days in that window.
If you’re in Vietnam on a Work Permit or tracking days carefully, the calendar year count is usually simpler. The rolling window catches cross-year arrivals who don’t notice the clock running.
Who Else Qualifies as a Tax Resident?
The day count is the main path — but not the only one. Two other criteria apply independently:
TRC and PRC holders are tax residents from the moment their Temporary Residence Card is valid, regardless of how many days they’ve been in-country.
Long-term tenants who signed a lease of 183+ days during the tax year also qualify — unless they can prove tax residency in another country for that year.
Most nomads and short-term expats qualify through the day count. TRC-based residency usually applies to people already committed to a longer stay and holding a proper immigration document.
Before registering for Vietnamese taxes, your immigration status needs to be current — visa, work permit, or residence card. Sorting out the visa side while tracking tax obligations is where most Danang-based expats ask me for help. I run e-visa applications and visa runs under one roof, so that piece doesn’t hold up the paperwork side — the full rundown is on our services page.
2026 PIT Brackets: What Tax Residents Pay
Vietnam’s Law 109/2025/QH15 cut the progressive scale from 7 brackets to 5, effective January 1, 2026 for employment income.
| Monthly Income (VND) | Annual Equivalent (VND) | Tax Rate |
|---|---|---|
| Up to 10M | Up to 120M | 5% |
| 10M–30M | 120M–360M | 10% |
| 30M–60M | 360M–720M | 20% |
| 60M–100M | 720M–1,200M | 30% |
| Over 100M | Over 1,200M | 35% |
Source: PwC Vietnam Tax Summaries 2026; KPMG GMS Flash Alert 2026-040
From 2026, every resident gets a personal deduction of VND 15.5 million per month (VND 186M/year), raised from VND 11M. Add VND 6.2M/month per dependent (up from VND 4.4M). Deductions reduce taxable income before the brackets apply.
Worked example: resident earning VND 50M/month deducts VND 15.5M → taxable income VND 34.5M → first VND 10M at 5% (VND 500K) + next VND 20M at 10% (VND 2M) + remaining VND 4.5M at 20% (VND 900K) = VND 3.4M tax (~6.8% effective rate). Compare this with salary data for Vietnam in 2026 to gauge how most expat incomes fall on this scale.
What Do Non-Residents Pay?
Non-residents pay a flat 20% on Vietnam-sourced income only. Income earned and paid by a foreign employer, freelance contracts for foreign clients, or investment returns outside Vietnam is not taxed by Vietnam at all.
There’s no personal deduction and no progressive scale for non-residents. No annual PIT finalization filing is required: the employer withholds 20% at source, and that clears the annual obligation.
For short-stay workers this is often cleaner. The effective burden depends entirely on whether income comes from inside or outside Vietnam — and at lower income levels, a resident’s 5–10% rate with the VND 15.5M deduction can actually be lighter than the flat 20%.
Does Your Country Have a Vietnam Tax Treaty?
Vietnam has Double Tax Agreements (DTAs) with 80+ countries, including Russia, Germany, the UK, France, Japan, Australia, Singapore, South Korea, China, Belarus, Kazakhstan, and Uzbekistan — complete list via Evershine CPA Vietnam.
A DTA means you can credit tax paid in one country against liability in the other, avoiding being taxed twice on the same income.
For US passport holders: the US and Vietnam signed a DTA on July 7, 2015, and Vietnam ratified it. However, the US Senate has not ratified it, so the treaty is not in force. Americans use the Foreign Tax Credit (FTC) or Foreign Earned Income Exclusion (FEIE) instead.
If you’re a resident in both your home country and Vietnam, the tie-breaker rules in the treaty determine which country gets primary taxing rights. This varies significantly by treaty — worth a conversation with a cross-border tax advisor before your first filing year.
Resident or Non-Resident: Which Costs More?
At lower incomes (below VND 30M/month), a resident paying 5–10% on income above the VND 15.5M deduction often ends up paying less than a non-resident’s flat 20%. At higher incomes, the progressive scale catches up. ASEAN Briefing estimates that at VND 200M/month, a non-resident pays VND 40M (20%) while a resident pays roughly VND 57M (~28.5% effective).
The real issue is that status isn’t a choice once you’ve crossed 183 days — you’re a resident, filing or not. Most expats working under a Vietnamese employment contract have withholding handled by their employer. Freelancers and remote workers may need to file independently and register for a personal tax ID (MST) themselves.
For anyone still navigating the visa question while building toward the 183-day mark, whether visa run, e-visa extension, or a longer-stay option, danangvisarun.com is where I handle that piece. Immigration in order first, then the tax situation takes care of itself.
Methodology: Where These Numbers Come From
Tax rates, brackets, and deductions in this article are sourced from:
- PwC Vietnam Individual Tax Summary (reviewed March 2026) — residence rules, worldwide income definition
- KPMG Vietnam GMS Flash Alert 2026-040 — Law 109/2025/QH15 bracket confirmation
- Vietnam Briefing (2026) — new PIT law analysis, personal deduction update
- InCorp Vietnam (July 2026) — PIT finalization deadlines, penalties, MST procedures
- Acclime Vietnam (January 2026) — PIT expatriate guide
- ASEAN Briefing (July 2026) — 183-day rule and worked income examples
- Evershine CPA Vietnam (July 2026) — DTA country list
All figures reflect employment income from January 1, 2026. The business/freelance income threshold changed July 1, 2026 (VND 500M/year, up from VND 100M). Freelancers and sole traders should verify their specific filing obligations with a registered Vietnam tax advisor.
Frequently asked questions
Does Vietnam count the 183 days from my arrival date or from January 1?
Vietnam runs two tests at the same time. The calendar year test resets on January 1 each year. The 12-month rolling test starts from your first arrival date and counts any 12-month stretch. You need to pass only one. If you arrived in June, you can cross 183 days in December under the calendar test and also be building toward the rolling test at the same time.
What if I leave Vietnam before December 31 after crossing 183 days?
You remain a tax resident for that calendar year. You must file a final PIT return within 45 days of your departure date. Filing after 90 days can trigger penalties of VND 15–25 million for individuals under Decree 125/2020/ND-CP, plus 0.03% per day in late-payment interest on any unpaid tax.
Do I pay Vietnam tax on salary paid by a foreign company into an overseas bank account?
If you’re a Vietnamese tax resident, yes. Vietnam taxes worldwide income regardless of where it’s paid or which account it goes to. Your country’s DTA with Vietnam may allow you to credit taxes paid at home against Vietnamese liability. Non-residents only pay on Vietnam-sourced income, so a foreign employer paying into a foreign account creates no Vietnamese obligation.
Does holding a Vietnam long-stay visa (DN, LĐ) automatically make me a tax resident?
No — the visa type doesn’t determine tax residency. What matters is the number of days physically present in Vietnam, or holding a TRC/PRC, or signing a lease of 183+ days. A long-stay visa makes extended presence possible but doesn’t by itself create a tax obligation.
What is the penalty for missing the April 30 PIT filing deadline?
Under Decree 125/2020/ND-CP, late filing penalties for individuals run from VND 2–5 million (1–5 days late) up to VND 15–25 million for delays beyond 90 days. If tax remains unpaid for 90+ days, the case can be classified as tax evasion, carrying a penalty of 1–3 times the unpaid amount.
