Korean Tax Residency When You Move Abroad (2026)
Key takeaways
- Residents are taxed on worldwide income; non-residents only on Korean-source income.
- Residency turns on domicile (your base of living in Korea) or a place of abode of 183+ days in the tax year — not on your visa or nationality.
- From 1 January 2026, having a residence in Korea for 183 consecutive days across two tax years is an additional resident test.
- Progressive rates run 6% to 45%, plus a 10% local income tax surcharge; qualifying foreign employees may instead elect a 19% flat rate.
- On permanent departure you become a non-resident and must clear your Korean tax first, via year-end settlement or a final/global-income return.
- After you leave, Korean-source payments (some interest, dividends, Korean rental income) may still face non-resident withholding, subject to any tax treaty.
Resident or non-resident: how Korea decides
Korean income tax status is set by the Income Tax Act, not by immigration status. A resident is an individual who either has a domicile in Korea or has had a place of abode (residence) in Korea for 183 days or more in a tax year. A non-resident is simply anyone who is not a resident (PwC Worldwide Tax Summaries — Korea, Individual Residence).
Domicile is a facts-and-circumstances test: it looks at where the centre of your living arrangements is — your home, your family, your economic and personal ties. You can have a domicile in Korea even without hitting 183 days if Korea is genuinely your base of living. The 183-day test is a physical-presence count over the calendar-year tax period (1 January to 31 December). Days need not be consecutive; cumulative presence crossing 183 days makes you a resident for that year.
The 2026 change: 183 consecutive days over two years
For tax years beginning on or after 1 January 2026, Korea adds a further resident test: having a residence in Korea for 183 consecutive days spanning two tax years also establishes residency. This closes a gap for people who split a long single stay across a year-end without reaching 183 days in either calendar year individually (PwC — Korea, Individual Residence). If your Korean stay straddles New Year, count carefully.
Deemed residence and family ties
Some people are treated as residents even short of 183 physical days. Korea deems you a resident if your occupation would ordinarily require you to live in Korea for 183 days or more, or if you are deemed to reside in Korea by having family accompanying you there or by retaining substantial assets in Korea (PwC — Korea, Individual Residence). This matters on the way out: if you leave but your spouse, children or main assets stay behind in Korea, the tax authority may argue your domicile — and residency — continues. A clean break usually means the household and the economic centre of life move with you.
What each status pays
The consequences are significant. Residents are taxed on worldwide income — Korean and foreign salary, business income, interest, dividends, rent and capital gains — at progressive rates from 6% up to 45%, with a separate local income tax equal to 10% of the national tax (so the top marginal burden is about 49.5%). Non-residents are “subject to income tax only on income derived from sources within Korea,” and they forfeit most of the personal allowances and deductions that residents enjoy (PwC — Korea, Taxes on Personal Income).
Qualifying foreign employees may elect a flat 19% rate (about 20.9% with local tax) on employment income instead of the progressive scale, for up to 20 years from their Korean employment start date, subject to the start-date deadline set in law. The election is made through your employer at withholding or year-end settlement, or on your annual return (PwC — Korea, Taxes on Personal Income).
Leaving Korea: when residency ends
When you depart Korea permanently, you cease to be a resident from the point your domestic base of living ends — generally your departure. For the year of departure you are typically taxed as a resident for the part of the year you were based in Korea, and employment income earned after you leave is normally not Korean-taxable. The practical rule: wages for work done before you go remain Korean income; wages for work done abroad afterwards fall under your new country’s system. Because Korea’s tax year is the calendar year, the split point is your departure within that year.
Settling your Korean tax before you go
Most foreign employees have Korean tax withheld monthly and reconciled through year-end tax settlement (연말정산) run by the employer. If you leave mid-year, ask your employer to perform an early year-end settlement for the period up to departure so your final Korean liability is squared away before you go. If you had income the employer cannot settle — for example self-employment, multiple employers, or Korean rental or investment income — you may instead need to file a global income tax return with the National Tax Service, generally in May of the following year, for the prior year’s income (National Tax Service — English). The NTS publishes an English year-end settlement manual for foreigners each year (NTS — English resources).
After you leave: non-resident withholding and treaties
Even as a non-resident you can still have Korean-source income — for example rent from a Korean property, Korean dividends or interest, or a pension. Korea generally collects tax on such income through withholding at source, at rates set by the Income Tax Act and capped by any applicable tax treaty. Korea maintains a wide treaty network — around 97 income tax treaties as of 2026 — which allocate taxing rights and reduce or eliminate double taxation (PwC — Korea, Foreign Tax Relief and Tax Treaties). To claim a reduced treaty rate, you or the Korean payer usually file an application for entitlement to reduced tax rate with the NTS. Your new country of residence will typically tax your worldwide income and give a credit for Korean tax paid — check its rules with its tax authority.
Dual residence and tie-breakers
In the year you move, both Korea and your destination may each consider you a resident under their own domestic tests — you could hit 183 days in Korea and still establish a home abroad in the same year. This is where the tax treaty tie-breaker comes in. Most Korean treaties resolve dual residence in a fixed order: permanent home available to you, then centre of vital interests (personal and economic ties), then habitual abode, then nationality, and finally mutual agreement between the two authorities. The treaty decides which country treats you as resident for treaty purposes, and the other then taxes you only as a non-resident on its source income (PwC — Korea, Foreign Tax Relief and Tax Treaties). Keep evidence of when your Korean home ended and your new home began — lease end dates, the shipment of your household goods, and your new address registration all help establish the switch.
Common mistakes when leaving
- Leaving family or a home behind in Korea and assuming you are automatically a non-resident — Korea may still treat you as domiciled there.
- Skipping the early year-end settlement, then finding withheld tax unreconciled and a refund stuck in a closed account.
- Ignoring Korean-source income after departure — rent, dividends or a pension can still be taxed at source.
- Not claiming a treaty rate, so Korean withholding is higher than it needs to be.
How Flyto can help
Flyto moves households from South Korea to Europe and worldwide, door-to-door; get a quote. We help you sequence your departure, tax settlement and shipment so nothing is left dangling, and point you to the correct NTS channels for your final filing.
Frequently asked questions
Does my visa decide whether I’m a Korean tax resident?
No. Residency is based on domicile or 183+ days of abode in the tax year, not on visa type or nationality. See PwC — Korea, Individual Residence.
I was in Korea only 150 days this year but my family lives here. Am I a resident?
Possibly yes — Korea can deem you resident where family accompanies you or you retain substantial Korean assets. Confirm your facts with the National Tax Service.
Is my foreign salary taxed in Korea after I leave?
Once you are a non-resident, only Korean-source income is taxed; foreign salary earned after departure is generally outside Korea’s scope, per PwC — Korea, Taxes on Personal Income.
What do I need to file before leaving?
Ask your employer for an early year-end settlement, and file a global income return with the National Tax Service if you have income the employer cannot settle.
What is the 2026 residency change?
From 1 January 2026, 183 consecutive days of residence spanning two tax years also makes you a resident. See PwC — Korea, Individual Residence.
Will I be taxed twice on Korean rental income after I move?
Korea withholds on Korean-source income, but a tax treaty usually gives your new country a credit. See PwC — Korea, Tax Treaties.
Sources
- National Tax Service — English (year-end settlement, filing, non-resident guidance)
- Hometax — NTS online filing portal
- PwC Worldwide Tax Summaries — Korea, Individual Residence (domicile, 183-day and 2026 tests)
- PwC — Korea, Taxes on Personal Income (resident vs non-resident, 6–45% rates, 19% flat)
- PwC — Korea, Foreign Tax Relief and Tax Treaties
- National Pension Service — Lump-sum Refund for Foreigners (related pension exit)