FinanceToolz.co.uk
Free UK Financial Calculators
Professional calculators for UK mortgages, taxes, pensions, ISAs, and stamp duty. Make informed financial decisions with tools built for the United Kingdom.
UK Tax Calculators
Calculate Income Tax, National Insurance, and more
Income Tax Calculator
Calculate PAYE, National Insurance, and take-home pay
Launch CalculatorDividend Tax Calculator
Calculate tax on dividend income
Launch CalculatorStudent Loan Calculator
Calculate repayments for Plan 1, 2, 4, 5 & Postgraduate
Launch CalculatorSelf Assessment Calculator
Estimate your self-employment tax bill
Launch CalculatorProperty & Mortgages
UK mortgage and property purchase calculators
UK Mortgage Calculator
Calculate monthly payments with UK rates and terms
Launch CalculatorStamp Duty Calculator
Calculate SDLT with surcharges for additional properties
Launch CalculatorBuy-to-Let Calculator
Analyse rental yield and buy-to-let profitability
Launch CalculatorMortgage Overpayment Calculator
See how overpayments reduce your mortgage term
Launch CalculatorSavings & ISAs
Maximise your tax-free savings allowances
Pensions & Retirement
Plan for a secure retirement with UK pension tools
Basic Financial Tools
Essential calculators for everyday financial planning
Interest Calculator
Calculate simple and compound interest
Launch CalculatorInflation Calculator
Adjust values for UK inflation over time
Launch CalculatorFuture Value Calculator
Calculate investment growth over time
Launch CalculatorPresent Value Calculator
Calculate current value of future cash flows
Launch CalculatorBond Calculator
Calculate bond yields and values
Launch CalculatorLoan Payment Calculator
Calculate monthly loan payments
Launch CalculatorBudgeting & Planning
Track and manage your personal finances
UK Financial Planning Blog
Learn about UK mortgages, tax planning, ISAs, pensions, and smart money management
Explore ArticlesWhy Choose FinanceToolz.co.uk?
100% Free
All calculators are completely free to use
Built for the UK
Accurate HMRC tax rates, NI bands, and UK regulations
Private
Your data stays in your browser - we don't store anything
Instant Results
Get immediate calculations with detailed breakdowns
Tax calculations based on 2025/26 tax year rates. Rates are updated annually in April.