GSTInvoicePDF.com

Free GST Calculator

Easily calculate GST inclusive and exclusive prices. Perfect for Indian businesses, freelancers, and tax professionals.

₹
Net Amount (Base)₹0
GST Amount (18%)₹0
Total Amount₹0

Generate Professional GST Invoices

Stop calculating GST manually on spreadsheets! Use our free generator to instantly create PDF invoices with zero hassle.

Auto-calculates CGST/SGST/IGST
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Formula for GST Addition (Exclusive)

GST Amount = (Net Amount × GST Rate) / 100

Formula for GST Removal (Inclusive)

Net Amount = Total Amount / (1 + GST Rate / 100)

Understanding the GST Calculator

The Goods and Services Tax (GST) is a unified indirect tax system across India. Whether you are generating a bill for services or selling physical goods, accurately calculating GST is critical for compliance.

Difference Between GST Exclusive and Inclusive

  • GST Exclusive: The price of the product or service does not yet include tax. You use this calculator mode to figure out how much tax to add on top of your base price to get the final total for the invoice.
  • GST Inclusive: The final price charged to the customer already has the tax baked in. You use this calculator mode to reverse-engineer the base price and find out exactly how much of that total is going to the government.

Looking for HSN/SAC Codes?

When invoicing, knowing the rate is only half the battle; you also need the specific HSN or SAC code for the item. Check out our Free HSN/SAC Finder to ensure your invoices are fully compliant.