GST Calculator with Discount

GST and Discount Calculator

This GST and discount calculator is useful when a product or invoice has both discount and GST. Enter the original price, discount percentage and GST percentage to calculate the final amount.

Many businesses first apply discount and then calculate GST on the discounted amount. This tool follows that common calculation method.

How to Calculate Price After Discount and GST

• Calculate discount on the original price
• Subtract the discount from original price
• Calculate GST on the discounted price
• Add GST amount to get the final price

Discount and GST Calculator Formula

Discount Amount = Original Price × Discount Percentage ÷ 100

Discounted Price = Original Price - Discount Amount

GST Amount = Discounted Price × GST Percentage ÷ 100

Final Price = Discounted Price + GST Amount

10% Discount on ₹2000 Example

If the original price is ₹2000 and discount is 10%, the discount amount is ₹200.

Price after discount = ₹2000 - ₹200 = ₹1800.

If GST is 18%, GST amount = ₹1800 × 18% = ₹324.

Final price after discount and GST = ₹1800 + ₹324 = ₹2124.

GST Discount Calculator Example

Price Before GST Calculator

A price before GST calculator helps find the original value before GST was added. If you know the final amount including GST, you can remove GST to estimate the base price.

Formula: Price Before GST = Final Price × 100 ÷ (100 + GST Rate)

GST Less Calculator

A GST less calculator helps remove GST from a total amount. This is useful when you know the final price including GST and want to calculate the amount before GST.

Why Use This Calculator?

• Instant final price calculation
• Shows discount amount separately
• Shows GST amount separately
• Useful for shopping, billing and invoices
• Works as GST discount calculator

Related Tools

Try our Discount Calculator, GST Calculator and Percentage Calculator.