How Much Income Tax Do Foreigners Pay in Korea in 2026?

Aug 20

2 min read

How Much Income Tax Do Foreigners Pay in Korea in 2026?

If you are a foreigner working in Korea, you may have wondered:

“How much income tax do I have to pay in Korea?”

One important tax rule for foreign employees in 2026 is Korea’s 19% flat income tax rate.

The 19% Flat Tax Rate for Foreign Employees

Certain foreign employees who meet the requirements can choose a 19% flat tax rate instead of Korea’s progressive income tax rates.

This can be particularly beneficial for high-income foreign professionals.

However, 19% does not always mean lower taxes.

When the flat tax rate is applied, certain deductions and tax credits available under the regular tax system may not be available.

Therefore, it is important to compare the 19% flat tax rate with the regular progressive tax system based on your individual circumstances.

What About Income from Overseas?

If you live and work in Korea, you should also check whether you are considered a Korean tax resident.

If you are a Korean tax resident, you may have reporting obligations regarding certain foreign-source income, such as overseas salary, dividends, interest, or rental income.

Even if you have already paid tax in another country, this does not automatically mean that you have no tax reporting obligations in Korea.

Tax treaties and foreign tax credits may also need to be considered.

What Should Foreigners Check?

If you are working in Korea, check the following:

Are you a Korean tax resident?
Do you qualify for the 19% flat tax rate?
Do you have income from overseas?
Which is more beneficial for you: the 19% flat tax rate or the regular progressive tax system?

Tax obligations for foreigners can vary depending on your residency status, income type, length of stay, and the country where your income is generated.

If you want to make sure your Korean tax filing is accurate and understand which tax treatment is most beneficial for your situation, we recommend consulting a tax professional with experience in foreign taxpayer matters.

In particular, professional advice can be especially helpful if you have income from both Korea and overseas or are considering the 19% flat tax rate.