About Ledgerlight
Ledgerlight is a library of 445 financial calculators built around one idea: the answer is only useful if you can see the assumptions that produced it. Every tool shows its inputs, its result, and the reasoning underneath in plain language.
The method
- · Growth projections compound monthly unless a tool says otherwise, adding contributions at the end of each period.
- · Loans and mortgages use the standard amortizing payment formula, with interest charged on the remaining balance each month.
- · Debt payoff plans simulate month by month, applying minimums to every balance and the extra payment to whichever debt the chosen strategy targets.
- · Take-home pay applies progressive bands in order, so each slice of income is taxed at its own rate.
Privacy
There is no account system and no server-side calculation. Your figures live in the page and, if you choose to share a result link, in the URL you copy. Recently used tools are remembered in your own browser storage and never sent anywhere.
Limits
Inflation, tax law, fees and market returns all vary by country and by year. Ledgerlight models the shape of a decision, not your exact circumstances. Treat every output as an estimate and check important decisions with a qualified professional.