Work out donation deduction instantly with clear inputs, formula shown and shareable results.
Charitable relief usually applies a percentage — often 50% or 100% — to a donation that itself cannot exceed a share of adjusted income. Two limits therefore apply in sequence, and the net cost of giving is the donation less the tax saved.
Donation relief
Qualifying = min(donation, 10% of adjusted income); deduction = qualifying × allowed rate
Tax figures are estimates based on the rates, caps and thresholds you enter. Real rules differ by jurisdiction and change every year, and personal circumstances alter the outcome. This is not tax or financial advice — confirm with a qualified adviser.
To stop deductions being used to eliminate a tax liability entirely through giving.
Above a small threshold cash donations are generally disallowed; use a traceable payment method.