Financial Tools
Free calculators and tools to help you plan your path to financial independence.
Compound Interest Calculator
See how your investments grow over time with regular contributions. Supports daily, monthly, and yearly compounding with CSV export.
Use calculatorFI Number Calculator
Find the exact portfolio size you need to be financially independent, and how long it will take to get there. Includes reverse mode to plan by retirement age.
Use calculatorNet Worth Tracker
Track every asset and liability over time. Independent category updates, interest rate tracking, and net worth charts.
Open trackerUK Net Worth Comparison
See how your net worth stacks up against the UK median for your age group, using ONS Wealth and Assets Survey data.
Compare nowMortgage Overpayment Calculator
See how regular overpayments can cut years off your mortgage and save thousands in interest.
Use calculatorPension Match Calculator
Your employer is offering free money. Find out how much you leave on the table by rejecting the pension match.
Use calculatorTake-Home Pay Calculator
See your actual take-home pay after income tax, National Insurance, student loan, and pension deductions. Uses 2025/26 UK tax rates.
Use calculatorCoast FIRE Calculator
Find out if you can stop saving and let compound growth carry you to financial independence. Calculate your Coast FIRE number.
Use calculatorDrawdown Calculator
Model how long your retirement pot will last with withdrawals, investment returns, inflation, and state pension income.
Use calculatorStamp Duty Calculator
Calculate UK stamp duty (SDLT) on a property purchase. Includes first-time buyer relief and additional property surcharge.
Use calculatorDebt Payoff Calculator
Compare snowball vs avalanche strategies for paying off multiple debts. See which saves more interest and time.
Use calculatorFinancial Literacy Quiz
Test your knowledge across pensions, ISAs, tax, budgeting, and investing. An adaptive quiz from Beginner to Expert.
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