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Discount Calculator
Find the price after a discount — and after an extra discount on top — with the total saving.
- Instant results
- No signup
- Remembers your inputs
- Rates checked Oct 2026
How the discount calculator works
Final = Price × (1 − d) × (1 − e). Two discounts don't simply add up: 20% + 10% is a 28% total discount.
How to use it
- Move the sliders or type exact figures — results update as you go.
- Read the highlighted result first, then the breakdown and chart.
- Open the year-by-year table to plan ahead, or copy the result into your notes.
Frequently asked questions
Is 20% + 10% the same as 30% off?
No. The second discount applies to the already-reduced price, so the total is 28%.
Results are estimates for planning, not financial, tax or investment advice. Rates and rules change — confirm with your bank, the scheme's official notice or a CA. Last reviewed 13 October 2026.