GST calculator

Work out tax and invoice total for inclusive or exclusive amounts — intra-state or inter-state.

Rates for FY 2026–27

Estimate for guidance only. For advice on your situation, talk to us.

FAQ

GST calculator questions

What is the difference between CGST/SGST and IGST?

Intra-state supplies split GST equally into CGST and SGST. Inter-state supplies use IGST at the full rate.

Can I reverse-calculate from an inclusive price?

Yes — choose “Inclusive of GST” and we back out the taxable value and tax.

Which GST rate should I use?

It depends on the HSN/SAC of your supply. Common rates are 0, 5, 12, 18 and 28%. When unsure, ask us.

Does this file my GSTR-1 or GSTR-3B?

No. It only splits amounts. We file returns monthly from ₹2,999.

Related tools

Pair this with our due-date calendar and a free estimate for hands-on filing.

Starting prices are on our service pages. Book a free call — we confirm a fixed fee before any work starts.