South Korea vs Thailand: Tax Comparison
South Korea residents earning $400k face ~44.1% effective tax. Moving to Thailand (17% flat (LTR)) could save you $108,554 per year.
Best for: remote professionals earning $80k+ who want a tropical lifestyle with a large expat community and significantly lower cost of living
Tax Savings at Every Income Level
Side-by-side comparison of annual tax paid in South Korea vs Thailand (all amounts in USD).
| Annual Income | South Korea Tax | Thailand Tax | Annual Savings |
|---|---|---|---|
| $100,000 | $31,567 (31.6%) | $17,000 (17%) | +$14,567 |
| $150,000 | $54,702 (36.5%) | $25,500 (17%) | +$29,202 |
| $200,000 | $78,051 (39%) | $34,000 (17%) | +$44,051 |
| $300,000 | $126,664 (42.2%) | $51,000 (17%) | +$75,664 |
| $400,000 | $176,554 (44.1%) | $68,000 (17%) | +$108,554 |
Side-by-Side Comparison
| Category | South Korea | Thailand |
|---|---|---|
| Tax System | Progressive | 17% flat (LTR) |
| Effective Rate ($400k) | 44.1% | 17% |
| Capital Gains Tax | Yes | None |
| Monthly CoL (mid-tier) | $2,900 | $2,200 |
| Min Residency Stay | — | 180 days/yr |
| Visa Complexity | — | 5/10 |
| English Literacy | — | 4/10 |
Why People Move from South Korea to Thailand
At $400,000 annual income, South Korea residents pay approximately $176,554 in taxes. Relocating to Thailand reduces this to $68,000, a saving of $108,554 per year.
Cost of living is also lower: Thailand costs approximately $2,200/month compared to $2,900/month in Seoul, saving an additional $8,400 per year.
English accessibility in Thailand is moderate (4/10). Learning the local language (Thai) will improve your experience.
Leaving South Korea: What to Know
Tax Departure Rules for South Korea
South Korea does not impose a formal departure or exit tax on individuals. However, unrealised gains on certain overseas financial accounts may be scrutinised under FBAR-style reporting obligations. You must file a final year tax return covering income up to your departure date.
Capital gains considerations: South Korea taxes capital gains on Korean real estate and shares in Korean companies. Non-residents are still liable for Korean-source capital gains at rates from 20-25%. Shares in listed Korean companies held by non-residents are generally exempt if the holding is below 25%.
Practical steps when leaving: Deregister from your local district office (dong/myeon), file a final income tax return with the NTS, and appoint a tax agent if you have ongoing Korean-source income. Cancel your National Health Insurance enrolment upon departure.
Living and Working in Thailand
Thailand Tax System
The Long-Term Resident (LTR) Visa offers a flat 17% tax rate for qualifying professionals earning $80,000+/year. This replaces Thailand's progressive rates that go up to 35%.
Lifestyle in Thailand
Thailand offers an exceptional quality of life with tropical beaches, vibrant cities, world-renowned cuisine, and a massive digital nomad community centred around Bangkok, Chiang Mai, and the islands.
Getting started: The LTR Visa requires proof of $80,000+ annual income and either work experience in a target industry or $250,000+ in assets. Standard tourist visas do not provide work rights or tax benefits.
South Korea to Thailand: What You Need to Know
Thailand's LTR Visa is growing in popularity with Korean digital nomads and retirees. The Korea-Thailand DTA covers most income types. Bangkok and Chiang Mai have growing Korean communities.
Net financial benefit: After accounting for both tax savings ($108,554/yr) and cost of living differences (+$8,400/yr), relocating from South Korea to Thailand produces a net annual benefit of approximately $116,954 at $400,000 income.
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Frequently Asked Questions
How much tax would I save moving from South Korea to Thailand?
At a $400,000 USD annual income, moving from South Korea to Thailand could save approximately $109k per year in taxes. South Korea has an effective tax rate of ~44.1% at this income level, while Thailand charges 17% flat (LTR). Actual savings depend on your income type, deductions, and residency status.
What is the tax rate in Thailand?
Long-Term Resident (LTR) Visa: 17% flat rate. Requires $80k/yr income. 2024 rule change: foreign income remitted to Thailand may be taxable for standard residents.
What is the cost of living in Thailand compared to South Korea?
A mid-tier lifestyle in Thailand costs approximately $2,200/month, compared to $2,900/month in Seoul. That's $700 cheaper per month, or $8,400 savings per year.
Do I need a visa to live in Thailand?
LTR Visa requires $80k+ annual income. Standard tourist/ED visa has no work rights. 180 days for tax residency. LTR provides 10-year visa.
What are the steps to leave South Korea for tax purposes?
Deregister from your local district office (dong/myeon), file a final income tax return with the NTS, and appoint a tax agent if you have ongoing Korean-source income. Cancel your National Health Insurance enrolment upon departure. South Korea has bilateral social security agreements with over 30 countries including the US, UK, Australia, Canada, Germany, and Japan. These prevent double contributions and allow pension aggregation.
What happens to my South Korea pension if I move to Thailand?
Korean National Pension (NPS) contributions can be refunded as a lump-sum when a foreigner leaves Korea permanently, or preserved for future pension payments. Korean nationals can receive their NPS pension overseas if they have at least 10 years of contributions.
Will I pay capital gains tax when leaving South Korea?
South Korea taxes capital gains on Korean real estate and shares in Korean companies. Non-residents are still liable for Korean-source capital gains at rates from 20-25%. Shares in listed Korean companies held by non-residents are generally exempt if the holding is below 25%. South Korea does not impose a formal departure or exit tax on individuals. However, unrealised gains on certain overseas financial accounts may be scrutinised under FBAR-style reporting obligations. You must file a final year tax return covering income up to your departure date.
How do I set up banking in Thailand as an expat from South Korea?
Opening a Thai bank account as a non-resident is possible with a long-term visa. Bangkok Bank, Kasikorn Bank, and SCB all serve expats. Wise is widely used for international transfers.
Who is the South Korea to Thailand move best suited for?
This relocation route is ideal for remote professionals earning $80k+ who want a tropical lifestyle with a large expat community and significantly lower cost of living. At a $400,000 annual income, the tax savings alone amount to $108,554 per year compared to staying in South Korea.