GST Invoice Calculator

Add line items with quantities, prices and GST rates and get subtotal, GST and invoice total.

How it works

  • Enter one item per line as `qty, price, rate` (for example `2, 500, 18`).
  • Intra-state sales split GST into CGST and SGST; inter-state sales use IGST.
  • The invoice total is the amount the customer pays.