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
Dividend Tax Calculator
Calculate tax on dividend income
Student Loan Calculator
Calculate repayments for Plan 1, 2, 4, 5 & Postgraduate
Self Assessment Calculator
Estimate your self-employment tax bill
Property & Mortgages
UK mortgage and property purchase calculators
UK Mortgage Calculator
Calculate monthly payments with UK rates and terms
Stamp Duty Calculator
Calculate SDLT with surcharges for additional properties
Buy-to-Let Calculator
Analyse rental yield and buy-to-let profitability
Mortgage Overpayment Calculator
See how overpayments reduce your mortgage term
Savings & ISAs
Maximise your tax-free savings allowances
ISA Calculator
Calculate growth in Cash or Stocks & Shares ISAs
Lifetime ISA Calculator
Calculate LISA growth with 25% government bonus
Pensions & Retirement
Plan for a secure retirement with UK pension tools
Pension Calculator
Workplace auto-enrolment & SIPP/personal pension planning
State Pension Calculator
Estimate your UK State Pension amount
Annuity Calculator
Calculate guaranteed retirement income from your pension pot
Basic Financial Tools
Essential calculators for everyday financial planning
Interest Calculator
Calculate simple and compound interest
Inflation Calculator
Adjust values for UK inflation over time
Future Value Calculator
Calculate investment growth over time
Present Value Calculator
Calculate current value of future cash flows
Bond Calculator
Calculate bond yields and values
Loan Payment Calculator
Calculate monthly loan payments
Budgeting & Planning
Track and manage your personal finances
Budget Calculator
Track income and expenses with smart budgeting rules
UK Financial Planning Blog
Learn about UK mortgages, tax planning, ISAs, pensions, and smart money management
Why 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.