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Income tax & VAT reference
Free · Designed for iPad. Not verified for macOS.
See how the income tax estimate changes with the expense you assume. Reference only; not a filing amount. Korean interface.
The app's interface is in Korean only.
A reference calculator for sole proprietors and freelancers in Korea. Enter your annual revenue and an expense amount you assume, and the app shows a national income tax estimate based on the law as checked on October 19, 2026, plus a simple 1/12 split of that estimate. When you change the expense, it shows how the estimate changed from the previous result.
Every figure is a reference estimate, not an amount to file or pay. The app does not file returns or replace tax advice, and it is not a government app.
Income tax reference
- Tax year 2026 by default; 2025 can be selected
- Uses the expense you enter; no industry code is required
- 2025 simple expense rates only for two verified industry codes (552101, 525101)
- Assumes only the basic personal deduction for one person
- Local income tax figures are hidden until the source table is re-verified
- Items not included (other income, credits, prepaid or withheld tax, penalties, refunds) are listed with each result
VAT reference
- General taxpayer: supply value x 10%
- Simplified taxpayer: total x industry value-added rate (15-40%) x 10%
- Same-total comparison between the two, without deductions or eligibility judgment
Pension, health and long-term care (income-based examples)
- Monthly examples only for the verified period July-December 2026
- Employment and industrial accident insurance are not included
Filing schedule
- 2026 VAT and income tax dates; dates not verified against the source are marked as needing confirmation
Privacy
- No account, sign-in or permissions
- Inputs stay in memory and are not saved after the app closes
- No server, analytics, ads or tracking; content leaves the device only when you share it after a preview
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Rebuilt the income tax screen: revenue and your assumed expense give a 2026 national income tax estimate and a 1/12 split, with the change from the previous result. Results and shared text include the base year, check date, excluded items and sources, with a preview before sharing. The schedule separates preliminary returns from preliminary notices. No review prompt during calculation; still no ads, tracking or account.
The developer, HeungYeol Kim, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HeungYeol Kim
- Size
- 30.8 MB
- Category
- Finance
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 ddojai