Discount & Tax Calculator — Final Price with Tax

In most US states and countries, the discount is applied to the pre-tax price. The sales tax is then calculated on the discounted price. For example: $100 item, 20% discount, 8% tax → $80 after discount → $86.40 after tax. This calculator follows this standard practice.

Original Price = Discounted Price / (1 - Discount%/100). For example, if you paid $80 after a 20% discount: Original = $80 / 0.80 = $100. This calculator can work backwards from a final price to find the original.

Sales tax is charged only on the final sale to the consumer. VAT (Value Added Tax) is charged at each stage of production. In the US, sales tax varies by state (0-10%+). In the UK/EU, VAT is typically 15-25%. This calculator handles both.

To stack discounts, apply them sequentially. For a 20% coupon on a 10% sale: $100 × 0.90 = $90, then $90 × 0.80 = $72. This is a 28% total discount, not 30%. This calculator applies a single discount — for stacked discounts, calculate the combined percentage first.