Taxes in Korea for Foreigners – What to Know in May
If you live or work in Korea, there is one phrase you will almost certainly hear in May: comprehensive income tax filing. If the filing season is already underway, it might be a good time to take a moment and check whether it applies to your situation.
⚡ What You Need to Know
In Korea, May is the main filing season for individual comprehensive income tax, generally from May 1 to May 31. This applies not only to Korean citizens but also to foreigners who earn income in Korea. Since the rules can vary depending on income type, length of stay, and personal circumstances, checking official guidance is always the safest approach.
A simple example of preparing tax documents during Korea’s tax filing season.
Why Is May Important for Taxes in Korea?
In Korea, May is often called Family Month because it includes several family-related celebrations. At the same time, however, it is also one of the most important months for taxes. People who are self-employed, work as freelancers, run small businesses, or have additional income may need to report their earnings during this period. This entire process is what is known as comprehensive income tax filing.
What Types of Income May Be Included?
Comprehensive income tax combines several types of income into a single filing. While the exact details depend on each individual, common examples include interest income, dividends, business income such as freelance work, employment income that was not fully settled at year-end, pension income, and other miscellaneous income. Because everyone’s situation is slightly different, the final requirement may vary from person to person.
Do Foreigners Need to File Taxes in Korea?
This is one of the most common questions among foreigners living in Korea. Tax obligations here are not determined simply by nationality. In many cases, foreigners may also need to file taxes if they live in Korea, work here, or earn income from Korean sources.
One important concept is whether a person is considered a resident or a non-resident for tax purposes. In general, staying in Korea for around 183 days or more can influence how this classification is made. For example, you may need to review your situation if you work for a Korean company, earn freelance income, run a business, or have income that was not fully handled through year-end tax settlement. However, the exact rules can differ depending on factors such as visa status, income type, and tax treaties between countries.
How Do People File Taxes in Korea?
Tax matters in Korea are handled by the National Tax Service (NTS). Most people use online systems to manage the process. The two most common options are Hometax, which is the main web-based system, and Sontax, the mobile app version. Through these platforms, users can check income records, submit tax returns, and make payments. While some English support is available, the process may still feel unfamiliar if it is your first time.
Where Can Foreigners Get Help?
If the process feels confusing, it is always better to rely on official support rather than informal advice. The National Tax Service provides a helpline specifically for foreigners:
📌 NTS Helpline for Foreigners
☎ 1588-0560
This can be one of the most reliable starting points if you need guidance related to taxes in Korea.
One Important Thing to Remember
Tax rules can vary significantly depending on personal circumstances. For foreigners in particular, factors such as length of stay, type of income, employment conditions, and tax agreements between countries can all play a role. Because of this, it is always important to confirm your situation through the National Tax Service or a qualified tax professional rather than relying on general information alone.
Final Thoughts
May in Korea is not only a month filled with family events and social activities, but also a time when many people take care of important financial responsibilities. For foreigners, the system may feel unfamiliar at first, but understanding the basic structure can make daily life in Korea much smoother and less stressful.
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Read the Three Kingdoms Overview →This post is for general informational purposes only and does not replace individual tax advice. For accurate filing guidance, please check with the National Tax Service or a qualified tax professional.