Credit Card Year-End Tax Settlement in Korea: Deduction Rates, Limits & Tax-Saving Strategies
Credit Card Year-End Tax Settlement: Know the Rules and Pay Less Tax
Every January and February, year-end tax settlement (연말정산) becomes the biggest concern for salaried workers in Korea. Among all the items involved, the credit card income deduction (신용카드 소득공제) applies to the vast majority of employees — yet many workers end up claiming less than half of what they are entitled to simply because they do not understand the structure. Here is a concise summary of the key points as of 2026.
What Is the Credit Card Income Deduction?
The credit card income deduction is based on Article 126-2 of the Restriction of Special Taxation Act (조세특례제한법 제126조의2). When the total amount a worker spends in a year using credit cards, check cards, cash receipts, and similar methods exceeds 25% of their total annual salary, a set percentage of that excess amount is deducted from taxable income.
The deduction rate varies by payment method:
- Credit cards: 15% of the amount spent
- Check cards · cash receipts: 30% of the amount spent
- Traditional market · public transportation spending: 40% each
- Books, performances, museums, art galleries, and movie tickets: 30% (for workers with a total annual salary of 70 million won or less)
What Are the Deduction Limits?
The basic deduction limit differs by total annual salary bracket:
| Total Annual Salary | Basic Limit |
|---|---|
| 70 million won or less | 3 million won per year |
| Above 70 million won ~ up to 120 million won | 2.5 million won per year |
| Above 120 million won | 2 million won per year |
On top of these basic limits, an additional 1 million won for traditional market spending, 1 million won for public transportation spending, and 1 million won for books and performances each apply as separate additional limits. If all conditions are met, the total deduction can reach up to 6 million won.
Note for foreign workers: The limits above are statutory minimums/maximums set by law. Your actual deduction depends on your spending patterns and total salary; contractual terms with your employer do not affect these statutory figures.
Tax-Saving Strategy: Use the 25% Threshold to Your Advantage
The deduction only kicks in on spending that exceeds 25% of your total annual salary. For example, if your total annual salary is 40 million won, you must spend at least 10 million won (40 million won × 25%) in a year before any deduction applies.
Practical strategies:
- Use a credit card up to the 25% threshold. Since spending below this threshold generates no deduction regardless, it makes sense to use a credit card that offers points and discounts during this phase.
- Switch to a check card or cash receipts once you exceed the 25% threshold. The deduction rate doubles to 30%, making these payment methods significantly more advantageous for the excess portion.
- Traditional markets and public transportation carry the highest deduction rate of 40% and have their own separate limits. If you incur these expenses, always keep a cash receipt or card payment record as proof.
Check Which Items Are Not Eligible for Deduction
Not all credit card spending qualifies for the deduction. Insurance premiums, education expenses (school tuition), taxes and public charges, apartment management fees, and overseas spending are excluded from the deduction. On the other hand, medical expenses paid by credit card are eligible for both the medical expense tax credit and the credit card income deduction simultaneously, providing a double benefit.
Use Hometax to Check in Advance
The National Tax Service (NTS) Hometax (홈택스) offers a "Year-End Tax Settlement Preview" service that lets you simulate your expected deduction amount based on spending data from September and October. Checking this before year-end allows you to adjust your remaining spending strategy in time.
If you want to see exactly how much your take-home pay changes after taxes, try the salary take-home pay calculator at workbear.kr, which reflects national health/pension/employment insurance contributions and income tax.
This article is for informational purposes only and does not constitute legal advice. For specific cases, consult a certified labor attorney (노무사) or lawyer.
Frequently Asked Questions
Which is better to use more — a credit card or a check card?
The deduction rate for credit cards is 15%, while check cards and cash receipts receive 30%. However, the deduction only applies to spending that exceeds 25% of your total annual salary. A common strategy is to use a credit card to earn points and discounts up to the 25% threshold, then switch to a check card or cash receipts for any spending beyond that threshold, since the higher 30% deduction rate applies to that portion.
What is the annual limit for the credit card income deduction in year-end tax settlement?
The basic deduction limit varies by total annual salary. For a total salary of 70 million won or less, the limit is 3 million won per year; for a total salary above 70 million won up to 120 million won, it is 2.5 million won; and for a total salary above 120 million won, it is 2 million won. Additional separate limits apply to spending at traditional markets, on public transportation, and on books and performances.
Can spending on a family member's card also be included in my deduction?
Yes. Card spending by a spouse or lineal ascendant or descendant whose annual income is 1 million won or less or whose total salary from employment income only is 5 million won or less can be combined with the worker's own deduction. However, spending by siblings is not included.
Can I receive both the credit card income deduction and the tax credit for medical or education expenses paid by credit card?
Medical expenses and education expenses are tax credit items, so even if paid by credit card, you can receive both the medical/education expense tax credit and the credit card income deduction simultaneously. However, double application may be restricted for certain items such as insurance premiums and private tutoring fees, so check the National Tax Service NTS Hometax guidance for details.