Taxwizy

GST Calculator

Work out CGST, SGST, or IGST on any amount under the current GST 2.0 rate slabs — in seconds, no sign-up.

Order details

Estimates only — not professional tax advice. Actual liability may vary based on your specific circumstances. Talk to a CA before filing.

Frequently asked questions

What are the GST 2.0 rate slabs?+

GST 2.0 (effective September 2025) simplified GST into four main slabs: 0% (essentials), 5% (most everyday items), 18% (standard rate), and 40% (sin/luxury goods), with 3% retained for bullion and precious stones.

When do I charge CGST+SGST vs IGST?+

If the supplier and the place of supply are in the same state, you charge CGST+SGST (split equally). If they're in different states, you charge IGST at the full rate instead.

How do I calculate GST on a price that already includes tax?+

Select 'Including GST' for the amount type. The calculator divides by (1 + rate) to back out the taxable value, then computes tax on that.

Does this calculator file my GST return?+

No — it's a quick estimator. Taxwizy's CA-reviewed filing service computes your full GSTR-1 and GSTR-3B from your actual sales data.