연말정산 2026-세모

※ This app is a private year-end tax settlement calculator unrelated to government agencies such as the National Tax Service or other tax services.

Calculating taxes is no longer difficult.

'Semo-Yeongnyeongjeongsan' is a year-end tax settlement calculator app where the calculation logic was personally created and reviewed by a practicing tax accountant with 15 years of experience. It reflects tax laws that change every year in real-time, incorporating all the latest revised tax laws applicable to the 2026 year-end tax settlement.

✨ What you can do

■ This app is for:

· Those who want to know in advance how much they will receive back (or pay) from their February salary next year

· Those wondering what additional preparations they can make by the end of the year to save on taxes

· Dual-income couples concerned about whose name to list their parents or children under to maximize tax benefits

■ Features available for free

① Year-end tax settlement calculation

Enter income deductions and tax credits by category to calculate the final tax amount and estimated refund. The more favorable option between special tax credits and standard tax credits is automatically applied. All amounts are displayed with their Korean reading (e.g., 70 million won).

② Tax-Saving Guide

By entering amounts into categories that can be adjusted until the end of the year, such as pension savings, insurance premiums, and credit card usage, you can immediately see how much your taxes will decrease.

③ Family Member Management

If you register parents, children, or siblings, the system calculates basic deductions along with medical expenses and insurance premiums spent for the family.

④ Child Allocation Recommendation for Dual-Income Families

If your spouse also has income, we compare who should be assigned the children—you or your spouse—to minimize your combined tax liability.

■ One-Click Consulting (Paid, One-time Payment)

We summarize your year-end tax settlement results into a single sheet based on the information you just entered.

· Overall Evaluation: We show you how well you are claiming your deductions in A, B, or C grades.

· Deduction Status by Category: We compare current amounts with deduction limits in a table for each category with fixed limits, such as pension savings, insurance premiums, credit cards, and monthly rent. · Maximum Refund: Calculates how much your refund can increase when all items are filled to the legal limits.

· Preparation Methods and Documents for Company Submission: Organizes preparation methods for items with remaining limits and a checklist of supporting documents to submit to your company.

Payment results are saved in your archive so you can view them again at any time. If the input is the same, it will open again without additional payment; you will only pay again when you change the input to receive a new result.

■ Calculation Logic Designed by a Tax Accountant

It reflects the revised tax laws for the tax year 2026, and the calculation structure was designed directly by a tax accountant.

■ Your Information Only on Your Mobile Phone

There is no membership registration, and the information you enter is stored only on your device, not sent to a server. You can delete all data at any time in the settings. (If you delete the app or reset the data, the results in your archive will also be deleted.)

■ Notice

· The calculation results in this app are for reference purposes based on the amounts you enter and do not constitute tax agency services under the Tax Accountant Act.

· This service does not represent a government agency or is affiliated with the government. Please file accurately through the National Tax Service Hometax (www.hometax.go.kr) or a tax professional.

· The actual refund amount may vary depending on your company's year-end tax settlement results.

Inquiries: App Settings > Creators