Free GST Tools & Calculators for Indian Businesses

Free GST tools & calculatorsEverything here is free, works without an account, and finishes the job on the page. Built for Indian businesses, shopkeepers and accountants who need one answer quickly.

GST calculator — Free GST calculator for India. Work out GST-inclusive and GST-exclusive prices at 0%, 5%, 12%, 18% and 28%, with the CGST, SGST and IGST split shown separately.

GSTIN validator — Check any 15-digit GSTIN free. Validates the checksum, decodes the state and the PAN inside it, and tells you which character is wrong.

HSN & SAC code finder — Search HSN codes for goods and SAC codes for services, with the GST rate for each. Free, no sign-up, covering what small Indian businesses bill most.

GST late fee calculator — Work out the late fee and 18% interest on a delayed GSTR-1 or GSTR-3B. Free calculator covering nil returns, the daily fee and the maximum cap.

E-way bill validity calculator — Enter the distance and see how many days an e-way bill stays valid, including over-dimensional cargo. Free, with the ₹50,000 threshold explained.

Free invoice generator — Create a GST-compliant invoice free, in the browser. Automatic CGST, SGST and IGST, HSN per line, amount in words, and print or save as PDF. No sign-up needed.

Margin & MRP calculator — Work back from an MRP to your selling price and margin, or forward from cost to MRP. Free calculator that keeps GST out of your profit figure.

Number to words converter — Convert any amount into words in the Indian system — thousand, lakh, crore — with paise. Free, instant, and formatted the way an invoice needs it.