How to use the Discount & Sales Tax Calculator
- Pick discount, add tax or remove tax.
- Enter the price and the percentage.
- See the final price and exactly how much you save or pay in tax.
About this tool
Check what a “40% off” deal really costs, work out the price including GST before sending a quote, or find out how much tax is hidden in a price that already includes it. The tax rate starts at 18%, Pakistan’s standard sales tax rate at the time of writing — change it to whatever rate applies to you.
Frequently asked questions
How do I remove tax from a price?
Divide the price by 1 plus the tax rate. A price of 1,180 with 18% tax included is 1,180 ÷ 1.18 = 1,000 before tax.
Are two discounts the same as adding them up?
No. 20% off and then another 10% off is 28% off in total, not 30%, because the second discount applies to the already-reduced price.
Is the tax rate always 18%?
No — rates differ by country, province, product and service, and they change over time. Always enter the rate that applies to your sale.