Quickly calculate Goods and Services Tax (GST). Add GST to a base amount or remove GST from a tax-inclusive total.
Use this free GST exclusive calculator to add GST to a base price and find the total amount payable.
A GST exclusive price is the base price of a product or service before GST is added. GST is calculated on this base and then added on top to arrive at the total amount the buyer pays.
B2B invoices typically show prices exclusive of GST so the buyer can claim input tax credit on the GST portion.
GST amount = Base price multiplied by the GST rate. Total = Base price plus GST amount.
For a base price of 1,000 rupees at 18% GST: GST is 180 rupees and total is 1,180 rupees. This calculator computes this instantly for any GST slab.
India has four main GST rates: 5%, 12%, 18%, and 28%. Some goods are exempt (0%). The rate depends on the HSN code of the product or SAC code of the service.
This calculator supports all GST slabs. Select the correct rate for your product or service before calculating.
For intra-state sales (within the same state), the GST total is split equally into CGST and SGST. For 18% GST: 9% CGST + 9% SGST.
For inter-state sales, the full GST applies as IGST. Use this calculator to get the total GST, then apply the correct split based on the transaction type.
A GST tax invoice must show the base price, GST rate, CGST/SGST or IGST amounts, and the total separately. Use the Tez Invoice free invoice generator to create GST-compliant invoices with the correct format.
The invoice generator calculates GST automatically based on the rate you select for each line item.
Tez Invoice is our free online invoice generator. No sign up. No watermark. Download clean PDF or JPEG invoices in seconds, right from your browser.
Common questions about GST Exclusive Calculator on Tez Invoice.
A base price that does not include GST. GST is calculated separately and added on top to arrive at the final total.
Multiply the base price by the GST rate. For 18% on 1000: 1000 times 0.18 equals 180 rupees GST. Total is 1180.
All standard Indian GST slabs: 0%, 5%, 12%, 18%, and 28%.
CGST and SGST are applied on intra-state sales, split equally. IGST applies to inter-state sales at the full GST rate.
Yes. Free with no sign up.
Yes. Fully responsive on all devices.
No. All calculations happen in your browser only.
Yes. Designed for small businesses, freelancers, and anyone raising GST invoices in India.
GST exclusive: GST is added on top of the base price. GST inclusive: GST is already built into the quoted price.
Use the free Invoice Generator on Tez Invoice to create compliant GST tax invoices instantly.