£Take-Home Pay / Salary CalculatorNet pay after income tax, NI, pension and student loan.› £Stamp Duty CalculatorSDLT on any residential property with first-time buyer relief.› ◈Compound Interest CalculatorProject savings growth with regular deposits or withdrawals.› ◈Savings Goal CalculatorMonthly contribution needed to reach a target by a given date.› ◈ISA CalculatorTax-free savings growth with annual allowance tracking.› ↗FIRE CalculatorFinancial independence number and years to reach it.› ↗Retirement Drawdown SimulatorStress-test your pot against every historical S&P 500 period.› ↗Investment Returns SimulatorWhat your investment would have grown to across any historical period.› ↗Personal Investment Return (XIRR)Annualised return on any investment with irregular cash flows.› ⌂Mortgage Repayment CalculatorMonthly cost, total interest and full amortisation schedule.› ⌂Mortgage Overpayment CalculatorInterest and term savings from regular or lump-sum overpayments.› ⌂Invest or Overpay CalculatorCompare long-term wealth impact of overpaying vs investing.› ❄Debt Snowball CalculatorPay smallest debts first — payoff schedule and total interest.› ❄Debt Avalanche CalculatorHighest-interest-first strategy — minimises total interest paid.› ⏳Pension Deferral CalculatorCost of delaying pension contributions by months or years.›