E-9 Worker Year-End Tax Settlement Guide: Process, Documents, and How to Get Your Refund (2026)

Introduction

Every January and February, E-9 workers across Korea hear the same words from their workplace: "Bring the documents." For workers still building their Korean, year-end tax settlement is one of the most intimidating administrative tasks of the year. Many sign whatever the employer hands them without ever being told clearly why they have to file, how much they can get back, or what happens if they skip it.

Year-end tax settlement is the process of reconciling the taxes withheld from your paycheck during the year with what you actually owe. If too much was withheld, you get a refund. If too little, you pay the difference. Foreign workers with Korean wage income are subject to the same year-end settlement obligation as Korean nationals — and have the right to elect a foreigner-only 19% flat-rate scheme (Source: NTS, Year-End Tax Settlement Guide for Foreign Workers).

This article walks through five things in order: (1) whether you must file, (2) which rate is better for you, (3) the documents you need, (4) the step-by-step process, and (5) common questions. All figures reference the NTS and the Restriction of Special Taxation Act, based on the February 2026 filing for 2025 income.

This article is for informational purposes only and does not constitute legal or tax advice. For individual tax calculations and filing obligations, always confirm with the NTS (call 126), your local tax office, or a qualified tax professional.

1. Do E-9 Workers Have to File a Year-End Settlement?

Yes, as a rule. Any foreign national earning wage income in Korea is subject to year-end tax settlement, regardless of whether they are classified as a resident or non-resident for tax purposes (Source: NTS, 2025 Year-End Tax Settlement Guide for Foreign Workers).

• Resident vs. non-resident: A foreigner who maintains a domicile in Korea or has a place of residence in the country for 183 days or more during a tax year (January–December) is classified as a resident under Korean tax law (Source: Income Tax Act, Article 1-2; Enforcement Decree, Articles 2 and 4). A foreigner who holds a job that ordinarily requires continuous residence in Korea for 183 days or more is also treated as a resident. Because E-9 workers normally work continuously for at least a year under the Employment Permit System, most qualify as residents.
• Residents are subject to year-end settlement on all Korean wage income and may claim the same deductions as Korean nationals.
• Non-residents (short-term stayers) face limited deductions and a separate filing procedure.

The filing deadline is on or before the day February wages are paid in the following year (Source: Income Tax Act, Article 137). In other words, income earned in 2025 must be settled by the end of February 2026.

What if you don't file? If your employer fails to process your year-end settlement, you must file directly during the May comprehensive income tax season. Skipping the process can trigger penalty taxes, and any refund you were entitled to will simply not be paid (Source: NTS, comprehensive income tax guidance).

2. Standard Rates vs. the 19% Flat Rate: Which Is Better?

Foreign workers may choose one of two taxation methods. The choice can be made fresh each year at settlement time.

(A) Standard Progressive Rates (Same as Korean Nationals)

(Source: Income Tax Act, Article 55, applicable to 2025 income)

• Deductions apply: basic personal deduction, dependent deduction, National Pension and health insurance premiums, medical and education expenses — the full set available to Korean nationals.
• Usually advantageous when your income sits in a lower bracket and you have many deductible items.

(B) 19% Flat Rate (Foreigner-Only Special Provision)

Foreign workers may instead elect to be taxed at a flat 19% on wage income, with no exclusions, deductions, or reductions applied (Source: Restriction of Special Taxation Act, Article 18-2, Special Taxation for Foreign Workers). Adding the 1.9% local income tax brings the effective rate to roughly 20.9%.

• Eligibility period: Available through the tax year ending within 20 years from the date the worker first provided labor in Korea (expanded from the prior 5-year limit, effective January 1, 2023. Source: Restriction of Special Taxation Act, Article 18-2). It also applies to workers whose first day of work in Korea was less than 20 years before January 1, 2023 — so E-9 workers already employed at that time can still elect it for the remaining period.
• How to apply: Submit the Application for Flat Tax Rate for Foreign Workers (외국인 단일세율 적용 신청서 / oegugin danil-seyul jeogyong sincheongseo) to your employer at year-end settlement.

How to Decide Which Is Better

At the income level typical for E-9 workers (roughly KRW 24M–36M per year), the standard progressive rate is often more favorable when you have several deductions to claim. For example, if you have dependents in your home country (spouse, children) who meet the personal-deduction criteria, the standard rate usually wins.

The 19% flat rate, on the other hand, can be the better choice when:

• You have no dependents in Korea and few deductible items
• You receive little tax-exempt income (overtime allowance, night-shift allowance, etc.)
• Your salary is relatively high and pushes you into a higher progressive bracket

Always run a simulation with your employer or a tax professional before choosing. The NTS Hometax (홈택스) "Year-End Tax Settlement Calculator" lets you compare both methods side by side (Source: NTS Hometax guidance).

3. Documents Every Foreign Worker Should Prepare

Year-end settlement documents fall into two groups: (1) documents the employer already holds, and (2) documents you must obtain yourself.

Held by the Employer

• Wage and Salary Income Withholding Tax Receipt (근로소득 원천징수영수증 / geunlo sodeuk wonjeon-jingsu yeongsujeung)
• Four major social insurance payment records (National Pension, health insurance, employment insurance, industrial accident insurance)

You Must Obtain These Yourself

(Source: NTS, Document Guide for Foreign Worker Year-End Tax Settlement)

Additional Notes for Home-Country Dependent Deductions

To register a spouse, child, or other family member living in your home country as a dependent and claim the deduction, you must meet all of the following requirements (Source: Income Tax Act, Article 50 and Enforcement Decree):

1. Proof that you share a livelihood: You need evidence that you actually support the dependent (remittance records, etc.).
2. Income requirement: The dependent's annual income must be KRW 1 million or less (or, if the income is only wage income, KRW 5 million or less in gross salary).
3. Family relationship documentation: Family relationship certificates issued by your home country's government must be translated into Korean and submitted with either apostille certification or consular (embassy) authentication.

Preparing home-country family documents takes time. Start the process well before year-end settlement season.

If You Have Children Aged 8 or Older: The Child Tax Credit

If you are a resident E-9 worker, elect the standard rate, and register a child aged 8 or older in your home country as a dependent who meets the personal-deduction criteria above (income and family-relationship proof), you can also claim the child tax credit. For 2025 income, the credit is KRW 250,000 for one child, KRW 550,000 for two, and — for three or more — KRW 550,000 plus KRW 400,000 for each child beyond the second (Source: Income Tax Act, Article 59-2). These amounts were raised starting with 2024 income and apply equally to 2025 income (filed in February 2026).

The child tax credit does not apply if you elect the 19% flat rate. Children under 8 are not eligible, and to claim a home-country child you must satisfy both the personal-deduction criteria above and the family-relationship documentation requirements.

4. The Filing Process: Done Through Your Employer

Step by Step

1. Mid-January: NTS Hometax's "Year-End Tax Settlement Simplification Service" (연말정산 간소화 서비스) opens (Source: NTS annual notice). You can pull medical expenses, credit card spending, insurance premiums, and other data that have been automatically collected.
2. Mid-January to early February: Submit to your employer (1) the flat tax rate application (if elected), (2) the income and tax deduction declaration form, and (3) supporting documents.
3. During February: Your employer completes the year-end settlement calculation and determines the final settlement amount.
4. When February wages are paid: Refunds are paid out with your salary; underpayments are deducted from your salary (Source: Income Tax Act, Article 137).
5. By March 10: Your employer submits the payment statement to the local tax office.

Using Hometax's Foreign-Language Services

The NTS publishes year-end settlement guides in multiple languages — including English, Vietnamese, and Chinese — and runs foreign-language pages on Hometax (Source: NTS Hometax foreign-language site). If Korean is difficult for you, the following channels can help:

• NTS foreign-taxpayer hotline: Dial 126 (no area code), then choose the menu for English or other languages
• Immigration Contact Center: 1345 (for immigration-related questions)
• Foreign Worker Support Centers: Operated regionally under the Ministry of Employment and Labor

5. When and How Do You Receive the Refund?

• Timing: Refunds are typically paid into your account along with your February or March salary (Source: NTS year-end settlement general guidance).
• Method: Your employer deposits the refund into your salary account. No separate application is required.
• Confirming the amount: Check the "After-Withholding Tax Amount" (차감징수세액 / chagam-jingsu seak) line on the Wage and Salary Income Withholding Tax Receipt your employer issues. A negative value (△) means a refund of that amount; a positive value means you owe additional tax.

If Your Employer Does Not Pay the Refund

Under the Labor Standards Act, wages include year-end settlement refunds. If your employer withholds the refund without a legitimate reason, you can file a wage-arrears complaint with the Ministry of Employment and Labor (Source: Ministry of Employment and Labor wage-arrears guidance; dial 1350, no area code).

6. Frequently Asked Questions

Q1. I changed workplaces during the year. Where do I file? A. You file a consolidated year-end settlement at the workplace where you are employed as of December 31. Obtain the Wage and Salary Income Withholding Tax Receipt from your previous employer and submit it to your current one (Source: Income Tax Act, Article 137).

Q2. What if I leave Korea mid-year? A. The year-end settlement is processed when wages are paid in the month of your departure. Inform your employer in advance and prepare the documents before you leave (Source: Income Tax Act, Article 137(1)).

Q3. Is the money I send to my home country deductible? A. The remittance itself is not deductible, but it can serve as supporting evidence for the personal deduction for dependents in your home country (provided you also satisfy the family relationship proof and livelihood support requirements).

Q4. I chose the 19% flat rate this year. Can I switch back to the standard rate next year? A. Yes. The choice can be made anew at each year-end settlement (Source: Restriction of Special Taxation Act, Article 18-2).

Q5. How is tax-exempt income handled? A. Under the standard rate, exemptions such as the meal allowance (up to KRW 200,000 per month, for income earned from 2023 onward) and the overtime/night-shift/holiday allowance for production workers (up to KRW 2.4M per year, for those whose monthly fixed wage is KRW 2.1M or less) apply (Source: Income Tax Act, Article 12 and Enforcement Decree). E-9 workers in manufacturing often meet the production-worker night-shift exemption criteria. If you elect the flat rate, no exemptions apply.

Wrapping Up

For E-9 workers, three things sit at the core of year-end tax settlement: (1) it is a mandatory obligation, (2) you can choose between the standard progressive rate and the 19% flat rate each year, and (3) home-country dependent deductions hinge on preparing the paperwork in advance.

What you can do next:

1. Ask your HR or general-affairs contact for the settlement schedule and the list of documents you need to submit.
2. Start the family relationship certificate issuance and apostille process in your home country by December.
3. Download the NTS Hometax foreign-language guide in your own language.
4. Ask your employer or a Foreign Worker Support Center to run a flat-rate vs. standard-rate simulation for you.
5. If your refund is not paid as expected, contact NTS at 126 or the Ministry of Employment and Labor at 1350.

Practice with SEDA

If the year-end settlement paperwork ever left you feeling lost, it was often not because you didn't understand the rules — it was because the Korean-language instructions didn't come together at a glance. Terms like chagam-jingsu seak (after-withholding tax), injeok gongje (personal deduction), and wonjeon-jingsu yeongsujeung (withholding tax receipt) can feel unfamiliar even after years of working in Korea. And it isn't just taxes. Employment contracts, hospital reception, the bank counter, instructions on the work site — almost every moment of life in Korea comes down to how much Korean you can follow.

That ability is built back when you were preparing for EPS-TOPIK, before you ever arrived. The more you practice catching a single sentence in a listening broadcast or a work instruction in a reading passage, the less intimidating the administrative procedures you meet in Korea become. The challenge is time. Sitting at a desk for long stretches while juggling work and study is hard, and studying alone makes it difficult to see which question types you're weak on. That's why SEDA breaks learning into sets of five questions by type (2–3 minutes each). In a short gap before work, at lunch, or before bed, you can finish one listening set and one reading set, and the questions you get wrong are saved automatically to your Review Notes, resurfacing at D+3, D+7, and D+30 intervals. Sign-up and native-language explanations in 11 languages are all free — so if you're preparing to come to Korea, or someone close to you is, start with SEDA.

References

1. National Tax Service (NTS), 2025 Year-End Tax Settlement Guide for Foreign Workers, 2025.
2. Restriction of Special Taxation Act, Article 18-2 (Special Taxation for Foreign Workers).
3. Income Tax Act: Article 1-2 (definition of resident), Article 12 (tax-exempt income), Article 50 (personal deduction), Article 55 (tax rates), Article 59-2 (child tax credit), Article 137 (year-end settlement of wage income); and Enforcement Decree Articles 2 and 4 (resident determination).
4. NTS Hometax foreign-language guidance pages (English, Vietnamese, Chinese, etc.).
5. NTS foreign-taxpayer hotline 126.
6. Ministry of Employment and Labor, wage-arrears reporting hotline 1350.
7. Korea Immigration Service, Guide to Issuance of the Certificate of Alien Registration.