Business & Tax Calculators
Practical calculators for UK sole traders, freelancers, contractors and limited companies. Use them to estimate tax, VAT, pricing, mileage, break-even points and business costs.
Choose a tool below or jump straight to one of the most-used calculators.
Choose your calculator
Pick the tool that matches the question you are trying to answer.
Sole Trader Tax Calculator 2026/27
Estimate Income Tax and Class 4 National Insurance from your annual self-employed profit.
Use calculatorCorporation Tax Calculator
Estimate Corporation Tax from taxable company profits using the current rate structure.
Use calculatorVAT Calculator
Add VAT to a net amount or remove VAT from a VAT-inclusive price.
Use calculatorSalary vs Dividend Calculator
Explore a simplified salary and dividend extraction scenario for a limited company.
Use calculatorBusiness Mileage Calculator
Estimate a business mileage allowance from your annual business journeys.
Use calculatorBreak-Even Calculator
Work out the sales or units needed to cover your fixed and variable costs.
Use calculatorFreelancer Hourly Rate Calculator
Turn your income target, overheads and billable hours into a practical commercial rate.
Use calculatorMaking Tax Digital Checker
Check the staged qualifying-income thresholds for Making Tax Digital for Income Tax.
Use calculatorAccountant Cost Calculator
Turn monthly accounting fees and one-off charges into an estimated annual budget.
Use calculatorUse the results as a planning guide
These calculators provide estimates and illustrations. They are not a substitute for a tax return, statutory accounts or personalised professional advice.
Tax rules can change
Rates, thresholds and reporting requirements can change. Check the latest HMRC guidance and your own circumstances before making financial decisions.