Year-end tax settlement is one of the essential tasks for office workers at the beginning of each year. Thorough preparation is necessary to receive a large year-end tax settlement refund, which is the 13th month’s salary. That’s why the National Tax Service Hometax provides a ‘Year-end Tax Settlement Preview’ service. This service is useful because you can check the expected tax deductions and refunds this year in advance. Today, I will tell you in detail how to use the year-end tax settlement preview and how to check the refund amount.
How to use the 2025 year-end tax settlement preview, usage period, and refund amount
How to use the 2025 year-end tax settlement preview, usage period, and refund amount
What is the year-end tax settlement preview?
Year-end tax settlement preview is a service provided by the National Tax Service Hometax, and it is a function that allows you to calculate the expected tax amount based on the year-end tax settlement results from last year and the expenditure data up to September of this year and the expected expenditure amount from October to December. Through this, you can check the refund amount you will receive or the additional tax you need to pay in advance and get a chance to fill in the missing deduction items. The year-end tax settlement preview is mainly provided from late October to early December, and can be used after logging in to Hometax.
Year-end tax settlement preview service usage period
The 2025 year-end tax settlement preview service officially opened on November 15, and is scheduled to operate until December 31.
How to use the year-end tax settlement preview
You can use the year-end tax settlement preview in the following ways.
1. Hometax access and login
First, access the National Tax Service Hometax and log in using a joint certificate or simple authentication (Naver, Kakao, PASS, etc.). Click the button below to go directly to the National Tax Service Hometax.
Use the year-end settlement preview
2. Click the year-end settlement preview menu
After logging in, click the “Encouragement and Year-end Settlement Electronic Donation” menu on the top menu, and then click “(For Employees) Year-end Settlement Preview” under “Convenient Year-end Settlement” on the screen that appears as shown below
Year-end Settlement Preview Menu
Year-end Settlement Preview Menu
3. Check the year-end settlement preview usage procedure and income data
You can check the usage procedure below through the year-end settlement preview page.
Year-end Settlement Preview Usage Procedure
Year-end Settlement Preview Usage Procedure
3-1. Calculating Credit Card Income Deduction
The usage procedure for “Calculating Credit Card Income Deduction” is as follows.
Load the previous year’s payment statement
Modify the period of employment and total salary
Select dependents’ credit card information
Enter the expected usage amount from October to December
Calculate
First, click the Load Previous Year’s Payment Statement button as shown below to load the previous year’s year-end settlement data. Then, enter the total salary amount expected for this year in the Total Salary column below. Then, check whether to add/delete dependents below, and click the “Load Credit Card Data” button to load credit card usage history from January to September of this year.
Use the year-end tax settlement preview
Load credit card income deduction payment statement
Load credit card income deduction payment statement
As shown in the image below, if you enter the expected credit card, debit card, and cash usage amount after October and click the “Calculate” button, you can check the credit card income deduction amount. In my case, I have filled the credit card income deduction limit of 2.5 million won, and I can see that I can receive an additional deduction of about 685,000 won.
Check credit card usage amount and simulate calculation
Check credit card usage amount and simulate calculation
Use the year-end tax settlement preview
3-2. Check additional income deduction
If you enter the deduction items below, you can find out a more accurate refund amount.
Basic deduction: Check the basic deduction for yourself, your spouse, and dependents.
Additional deduction: Carefully enter additional items such as disabled persons, senior citizens, and single-parent deductions.
Special deduction: You can add expenses such as insurance premiums, education expenses, medical expenses, and donations.
3-3. Check the results
If you enter all the data and click the calculate button, you can check the expected tax amount, refund amount, and additional payment amount for this year.
How to check the refund amount in advance for year-end tax settlement
You can check the expected refund amount for year-end tax settlement as shown below through the year-end tax settlement preview usage procedure as above. For reference, if the value of the expected tax amount for deduction and collection (refund) is displayed as a minus, it means that you can receive the corresponding amount later.
Check the refund amount in advance for year-end tax settlement
Check the refund amount in advance for year-end tax settlement
Use the year-end tax settlement preview
In conclusion…
The year-end tax settlement preview is a very useful service that allows you to check your income and tax deductions in advance in preparation for the upcoming year-end tax settlement season and predict the refund or additional payment amount. In particular, it is a great advantage that you can review deduction items in advance and fill in any gaps to reduce your tax burden. If you make good use of the year-end tax settlement preview, you can prepare for the year-end tax settlement, which can seem complicated, a little more easily.