Free UK Tax & Financial Calculators
Instantly estimate your tax liabilities, plan your payroll, and stay compliant with HMRC. Select a smart tool below to get started.
Income Tax Calculator
Calculate your UK PAYE Income Tax, take-home pay, student loan, and pension deductions instantly.
National Insurance
Estimate Class 1, Class 2, and Class 4 National Insurance Contributions for employees and self-employed.
Corporation Tax
Optimize director salary vs. dividends and calculate your company’s Corporation Tax exposure with marginal relief.
Dividend Tax
Estimate dividend tax bands and compare tax years to find the most efficient limited company withdrawal strategy.
Capital Gains Tax (CGT)
Calculate UK CGT liabilities, check your Annual Exempt Amount, and apply Business Asset Disposal Relief.
Self-Assessment Tax
Estimate your upcoming self-assessment tax bill, check allowances, and prepare for your HMRC return.
Self-Assessment Summary
Full comprehensive summary of your SA liabilities, view Payments on Account, and estimate late penalties.
VAT Registration Checker
Track your rolling 12-month turnover against the £90k VAT threshold to see exactly when you must register.
VAT Calculator
Add or remove Standard VAT, and calculate liabilities easily under the Flat Rate Scheme (FRS).