---
title: "Korea 3.3% Tax Calculator — App Overview"
url: https://marlvel.ai/apps/korea-3-3-tax-calculator
category: Finance
developer: sosone
platforms: android
rating: N/A (0 ratings)
pricing: free
report_level: overview
generated: 2026-05-08
last_verified: "2026-05-08T14:31:00.055Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This app functions as a specialized calculator and ledger for Korean workers to manage 3.3% tax deductions without manual spreadsheet entry.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Finance |
| Rating | N/A ★ (0) |
| Pricing | free |
| Platforms | Android |
| Latest Version (Android) | 1.1.0 |
| Developer | sosone |

<!-- SECTION: Summary -->
## What is Korea 3.3% Tax Calculator?

Korea 3.3% Tax Calculator is a financial utility designed to simplify tax math for South Korean freelancers and gig workers. The app provides automated calculations for the standard 3.3% business income tax and includes integrated tools for tracking income and expenses via a visual calendar.

<!-- SECTION: Key Features -->
## Key Features

- **Two-Way Instant Calculation**: Allows users to calculate net pay from gross pay or reverse-calculate gross pay from a desired net amount.
- **Income & Expense Calendar**: Provides a visual interface to log daily financial transactions and manage settlement schedules.
- **History & Favorites**: Automatically saves recent calculation results and allows users to bookmark specific entries for quick retrieval.
- **Data Backup**: Enables users to securely back up and restore their calculation history and calendar data.

<!-- SECTION: Target Audience -->
## Who is it for?

Freelancers, part-timers, and solo entrepreneurs in South Korea subject to 3.3% business income tax.

<!-- SECTION: Links -->
## Links

- [Google Play](https://play.google.com/store/apps/details?id=kr.sosone.tax33&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/apps/korea-3-3-tax-calculator)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/korea-3-3-tax-calculator).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*