TaxSmith - UK Tax Calculator
Self-Employed Tax Calculator
Free · Designed for iPad. Not verified for macOS.
TaxSmith is a free, simple UK tax calculator built for self-employed sole traders, freelancers and tradespeople.
Enter your annual income and business expenses, and TaxSmith instantly calculates:
- Income Tax (basic, higher and additional rates)
- Class 2 National Insurance
- Class 4 National Insurance
- Total tax bill
- Take-home pay (yearly, monthly and weekly)
- Your effective tax rate
Supports both the 2025/26 and 2026/27 UK tax years with up-to-date HMRC rates and thresholds including the personal allowance, basic rate band and NI limits.
KEY FEATURES
- Instant calculations with no internet required
- Works completely offline
- Supports 2025/26 and 2026/27 tax years
- Personal allowance tapering for high earners (over 100k)
- Class 2 and Class 4 NI calculated automatically
- Clean, dark-themed professional interface
- No ads, no tracking, no subscription
PERFECT FOR
- Sole traders calculating quarterly payments
- Freelancers estimating take-home pay
- Tradespeople (builders, plumbers, electricians)
- Self-employed workers preparing for Self Assessment
- Anyone considering going self-employed
TaxSmith provides estimates based on current UK tax rates for self-employed individuals. It does not constitute financial advice. Consult a qualified accountant for your specific situation.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Fresh new App Store images and behind-the-scenes improvements. Thanks for using TaxSmith.
The developer, John Hitchens, 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
- Provider
- John Hitchens
- Size
- 27.5 MB
- Category
- Finance
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 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 Hitchens Group