Discount Calculator
Compute final price after one or two discounts, with optional VAT.
Last updated: 2026-05-31
This calculator uses generic assumptions. Use advanced mode to override them for a more accurate result.
Inputs
Formula transparency
Source: defaultFinal = Price · (1 − d1) · (1 − d2) · (1 + VAT)
Frequently asked
- Are stacked discounts additive?
- They compound — the second applies to the post-first price, so the result is less than the sum.
- Is VAT before or after discount?
- After discount — the standard behavior in most POS systems.
- Does it include shipping?
- No, add shipping separately for a full comparison.
- Advertised vs effective discount?
- Advertised sums percentages; effective is the actual compound.
- Is 100% possible?
- Only theoretically — final price would be zero.
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Results are estimates and not professional advice. Verify important decisions with a qualified professional.