Is sales tax calculated before discount?

No. Tax is calculated on the post-discount taxable amount in this calculator.

Can discount and coupon together exceed 100%?

Each percentage is clamped between 0 and 100. Sequential discounts reduce the remaining price and do not create a negative price.

Yes. Select GST 5%, 12%, 18%, or 28% to add tax after the discount and coupon are applied.

ଗଣିତ

Calculate final price after discount percentage, extra seasonal coupon, and optional sales tax or GST.

Key terms

Original price

INR

110000000

Discount

0100

Extra coupon

0100

Sales tax / GST

Final price = price x (1 - discount%) x (1 - coupon%) x (1 + tax%)

The discount is applied first, the coupon is applied to the discounted price, and tax is calculated on the post-discount taxable price.

1Multiply original price by discount percentage to calculate first discount savings.
2Subtract discount from original price to get the discounted price.
3Apply the coupon percentage to the discounted price, not the original price.
4Add selected tax or GST on the post-coupon price to get final payable amount.

Reference

Compare common scenarios quickly. Scroll horizontally on smaller screens.

Reference 1

Reference 2

Reference 3

Original	Discount	Coupon	Tax	Final price
INR 5,000	20%	10%	18%	INR 4,248
INR 10,000	30%	5%	12%	INR 7,448
INR 25,000	40%	0%	18%	INR 17,700

This calculator applies the main discount first, then applies the coupon to the discounted price.

Final price

₹4,248.00