Extract the pre-tax base amount and GST component from an all-inclusive price.
Use this free GST reverse calculator to extract the original base price and GST component from any GST-inclusive price.
A GST reverse calculator works backwards from a GST-inclusive price to find the original base price and the tax amount. For example, if a product costs 1180 rupees inclusive of 18% GST, this calculator tells you that the base price is 1000 rupees and the GST is 180 rupees.
This is also called back-calculation, reverse GST, or removing GST from a price.
You need a GST reverse calculator when you have received a bill that includes GST but you want to know the base price before tax. This is common when reconciling accounts, splitting costs for expense reporting, or checking whether a vendor charged the correct tax.
It is also used by businesses that purchase goods at MRP (which includes tax) and need to record the base cost and tax separately in their accounts.
Enter the GST-inclusive price in the input field. Then select the GST rate that was applied to the transaction. The calculator instantly shows the base price and the GST amount that makes up the total.
You can use these figures to record the correct amounts in your accounting software or to verify a vendor's invoice.
A GST-inclusive price has the tax already built in. When you pay 1180 rupees at a shop, the price is GST-inclusive. A GST-exclusive price is the base price before adding tax, which is what you typically show on B2B invoices.
This reverse calculator is for GST-inclusive prices. For adding GST to a base price, use the standard GST calculator on Tez Invoice.
Recording the wrong base price in your accounts leads to errors in GST returns, input tax credit claims, and profit calculations. Using a reverse GST calculator ensures you always record the correct base amount and tax separately.
This is especially important for businesses that claim input tax credit on their purchases under GST.
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Common questions about GST Reverse Calculator: Find Base Price from GST-Inclusive Amount on Tez Invoice.
A GST reverse calculator extracts the base price and GST amount from a GST-inclusive total. You enter the total amount and the GST rate, and it shows you the original price before tax and the tax portion.
Enter the GST-inclusive price and select the GST rate in the reverse calculator. It will instantly show the base price and the GST amount.
It supports all main GST slabs: 5%, 12%, 18%, and 28%.
Yes. It is completely free with no sign up required.
Use it when you have a GST-inclusive bill and need to know the base cost, when reconciling accounts, or when checking whether a vendor charged the correct tax.
Regular GST calculation adds tax to a base price. Reverse GST removes tax from an inclusive price to find the original base price.
Yes. Enter the IGST-inclusive amount and select the applicable IGST rate to get the base price and IGST separately.
Yes. The tool is fully responsive and works on any device.
Yes. A GST-inclusive calculator and a GST reverse calculator perform the same function: finding the base price from an inclusive total.
Use the free Invoice Generator on Tez Invoice to create a professional GST invoice with correct tax breakdowns and download it as a PDF.