You have a pot figure in mind and a retirement age on the calendar. The harder question is what actually lands in your bank each year, and whether it lasts. Most UK calculators stop the moment you retire, or quote gross numbers you cannot spend. caniretire.uk lets you plan in net income: the take-home pay you want. We work out the draw from your pot, the tax, and when state pension chips in. Then we keep modelling through drawdown, lump-sum vs phased tax-free cash, and inflation in today's money, year by year.