Every May, many workers and business owners prepare to apply for the Earned Income Tax Credit (EITC). The EITC is a national program that provides practical income support to households that work hard but struggle to make ends meet due to low income. Simply having a low income does not automatically make you eligible; you must meet all the complex requirements set by the National Tax Service (NTS). This article provides a thorough review of EITC eligibility requirements and a practical guide to help you avoid errors during the application process. Since financial and tax regulations can change annually due to tax law revisions, please be sure to check the official announcements on the NTS Hometax website before applying.
1. Basic Concept and Purpose of the EITC

The EITC is a system designed to encourage employment and support the actual income of low-income worker households, combining tax and welfare systems. Because it is designed to encourage self-reliance through work, it prioritizes households with a certain level of earned income rather than those with no income at all. Its purpose is not merely charitable welfare, but to support the stable living of households that continue to engage in economic activities.
The core of the system is that the subsidy is calculated based on household composition, total income, and the total value of assets held. Since the income of all household members is aggregated during this process, it is important to accurately understand the economic situation of all members. If eligible, the amount is paid on a sliding scale based on income levels within the maximum limit set for each household type.
2. Detailed Analysis of Income Requirements by Household Type

The first thing to check is your 'household type.' The EITC is categorized into single-person households, single-earner households, and dual-earner households. A single-person household is one without a spouse, dependent children, or lineal ascendants aged 70 or older. A single-earner household is one where the spouse's total salary, etc., is less than 3 million KRW, while a dual-earner household is one where the spouse's total salary, etc., is 3 million KRW or more.
The annual total income threshold for the couple varies based on this classification. To be eligible, a single-person household must have less than 22 million KRW, a single-earner household less than 32 million KRW, and a dual-earner household less than 38 million KRW. 'Total income' here includes not only earned income but also business income, interest, dividends, pensions, and other income, so you should not calculate based on monthly salary alone. This income aggregation section is where most mistakes occur when determining EITC eligibility.
Checkpoint: While non-taxable income is excluded when calculating income, unreported cash income may lead to penalties later if omitted. Freelancers, in particular, should note that the income amount after deducting necessary expenses is the standard.
3. Asset Requirements: Understanding the 240 Million KRW Threshold

Even if you meet the income requirements, many are disqualified due to asset requirements. The total assets owned by all household members must be less than 240 million KRW. Assets include land, buildings, passenger cars, jeonse (lump-sum) deposits, financial assets, and securities. Note that jeonse deposits are calculated based on the actual rental amount.
If the total assets are between 170 million KRW and 240 million KRW, only 50% of the subsidy is paid. As a rule, liabilities are not deducted when evaluating assets, so even if you have significant debt, you may be excluded if your total assets exceed the threshold. You can check your asset status through the Hometax inquiry system, and remember that assets are evaluated based on what you hold as of June 1st of each year.
Precautions: If you live in a house under a jeonse contract, the deposit is counted as an asset, but for monthly rent, only the deposit is included. It is advisable to check the difference between the standard market price and the actual transaction price in advance.
4. Checking Exclusion Criteria
Even if you meet all requirements, you cannot apply for the EITC in the following cases: First, if you do not hold South Korean citizenship. However, exceptions apply if you are married to a South Korean citizen or have a dependent child who is a South Korean citizen. Second, if the resident is registered as a dependent child of another resident during the application period.
Additionally, professional business owners with business income are excluded, as they are considered likely to have a high income level. Furthermore, if you or your spouse have not registered as a business owner, it is difficult to verify business income rather than earned income, making the submission of supporting documents mandatory. Being aware of these exclusion reasons in advance is the best way to avoid administrative waste.
5. EITC Calculation Method and Payment Amount
The EITC is paid according to a calculation table set for each household type. It is not structured to pay more as income decreases; rather, it follows an 'inverted U-shape' where the subsidy increases as income rises up to a certain point, then decreases once a specific income threshold is exceeded. This is designed to maximize work incentives for low-income earners.
Single-person households can receive up to 1.65 million KRW, single-earner households up to 2.85 million KRW, and dual-earner households up to 3.3 million KRW. The exact amount received depends on how closely the applicant's income information matches the data reported to the NTS. Sometimes, applicants over-apply because their reported income is lower than their actual income, which can lead to penalties later, so accurate income reporting is fundamental.
6. How to Apply: Using Hometax and Mobile
Applications are processed during the regular period every May. The easiest way is to use the NTS Hometax website or the mobile app 'Sontax.' If you have received an application notice, you can complete the process very quickly by entering the individual authentication number provided on the notice. Even if you did not receive a notice, you can apply directly if you believe you meet the requirements.
When accessing Hometax, log in using a digital certificate or simple authentication, then select the 'Apply for Earned/Child Income Tax Credit' menu. On the application screen, verify your household information, income, and asset details, and enter any corrections. Finally, ensure your bank account number and contact information are accurate to avoid issues during the payment process. Seniors or those who have difficulty using digital devices can use the Automated Response System (ARS) phone application.
Action Plan: If you did not receive a notice, log in to Hometax, click 'Apply for EITC' under the 'Application/Submission' menu, and try entering your income information. The system will automatically notify you if you do not meet the requirements, which can be used to gauge your eligibility before applying.
7. Common Mistakes and Precautions When Applying
The most common mistake applicants make is miscalculating the total household income. If there are household members working part-time or as freelancers, you must verify the exact annual income through withholding tax receipts or income certificates. Also, if you own a house or car jointly, you need to check whether the asset value is calculated based on your ownership percentage.
Another precaution is how to handle a 'payment exclusion' notice. If the NTS's decision differs from your expectations, you can file an objection or request for review within 90 days of the notification date. At this time, you can submit additional income supporting documents to clarify your situation. It is key to prepare objective supporting documents rather than appealing to emotion.
Comparison Criteria: When applying for the EITC, you should compare your income certificate with the actual salary received. If your company has under-reported your income, you must correct and report your income yourself when applying for the subsidy to prevent future disadvantages.
8. Preparing and Managing Income Supporting Documents
If you are an earned income earner and have completed your year-end tax settlement, you rarely need to submit separate documents. However, if you have business income or work as a freelancer, you must have materials that can prove your total revenue, such as tax invoices, cash receipts, and sales ledgers. You should manage these materials consistently so you are not caught off guard when applying for the subsidy.
For freelancers, even if you are not registered as a business, your income details with 3.3% withholding tax must be reported to the NTS. If your income is not properly reported, it becomes very difficult to prove your actual income when applying for the EITC. Therefore, the habit of accurately reporting your income during the comprehensive income tax filing period in May is the first step toward receiving the subsidy.
9. Post-Management and Prevention of Improper Receipt
Even after receiving the subsidy, the NTS may conduct post-verification. If it is confirmed that the information submitted during the application was incorrect, the subsidy will be recovered, and if improper receipt is evident, it will be collected including penalties. Intentionally under-reporting income or hiding assets is strictly prohibited.
Honest application is in your best interest. The NTS tracks income and asset information in real-time through computer networks linked with financial and other institutions. Therefore, omitting or distorting information is highly likely to be detected. Please keep in mind that only households that work legitimately and report taxes correctly can fully enjoy the benefits of the system.
The EITC is a program that provides great strength to households during economically difficult times. Please check the criteria summarized today step-by-step to see if you are eligible. If you miss the application period, you must file a 'late application,' which results in a 10% reduction in the subsidy, so it is advantageous to apply within the designated period. If you find it difficult to judge based on complex tax laws or personal circumstances, seeking expert help through the NTS consultation center (126) is also a good method.
Frequently Asked Questions
Where can I apply for the EITC?
You can apply via the NTS Hometax website, the mobile app 'Sontax,' or by calling the ARS phone number.
What is included in the 240 million KRW asset requirement?
It refers to the total assets of all household members, including land, buildings, passenger cars, jeonse deposits, financial assets, and securities.
Can freelancers receive the EITC?
Yes, you can receive it if you meet the income and asset requirements. However, your 3.3% withholding tax details must be reported to the NTS.
What should I do if the application period has passed?
You can file a 'late application' after the regular May period, but 10% of the final calculated subsidy will be deducted.
How do I check the couple's combined income threshold?
It is based on the total annual income, which combines the earned, business, and other income of both spouses. Please refer to Hometax guidance as the specific criteria vary by household type.