Free tool

India GST calculator

Add or remove GST from any amount, in INR. Instant, free, and no signup required.

Net (before GST)INR 0.00
GST (5%)INR 0.00
Total (incl. GST)INR 0.00

Get a free India GST & filing checklist by email

Optional — the tool works without it.

Tallium adds GST automatically on every sale and builds your CBIC return summary as you trade.

See plans

GST in India, in plain English

India runs a multi-rate GST (5/12/18/28%) filed as GSTR-1 and GSTR-3B on the GSTN portal, with IRP e-invoicing for larger businesses.

Registration threshold: ₹40 lakh turnover for goods (₹20 lakh for services; lower in special-category states). Returns are filed as the GSTR-1 (outward) and GSTR-3B (summary & payment), and India uses the Invoice Registration Portal (IRP), which returns an IRN and QR code. This tool is for quick estimates — always confirm the exact rate and treatment of your supplies with Central Board of Indirect Taxes and Customs (CBIC) or a qualified local tax professional.

Questions