Add or remove GST from any amount. Covers 5%, 18% and 40%, plus the older 12% and 28% rates for past invoices. Get CGST, SGST & IGST breakdown instantly.
| Original Amount | — |
| GST Rate | — |
| GST Amount | — |
| CGST (—) | — |
| SGST (—) | — |
| Total Amount | — |
GST was simplified to two main slabs from 22 September 2025. The Government of India announced the change as "next-generation GST reforms" (PIB press note on the 56th GST Council meeting: standard rate 18%, merit rate 5%, 40% for a select few goods and services). Always confirm the rate for your specific item in the official notification.
| GST Rate | What it means |
| Nil | Exempt or nil-rated items |
| 5% | Lower slab, including many goods that were earlier at 12% |
| 18% | Standard slab, including many goods that were earlier at 28% |
| 40% | A small set of specified demerit and luxury goods |
For intra-state supply (within same state), GST is split equally between Central (CGST) and State (SGST). For inter-state supply, the full GST is collected as IGST by the Centre. Example: 18% GST on intra-state = 9% CGST + 9% SGST.
Adding GST: Total = Original × (1 + GST%/100). For ₹10,000 + 18% GST = ₹11,800.
Removing GST: Original = Total ÷ (1 + GST%/100). From ₹11,800 inclusive of 18% GST: ₹11,800 ÷ 1.18 = ₹10,000.
Q: Is GST applicable on exports?
A: No. Exports are zero-rated under GST. Exporters can claim a refund of input tax credit.
Q: Who needs to register for GST?
A: Registration depends on your annual turnover, the type of supply and your state, and some suppliers must register whatever their turnover. Check the current rules on the official GST portal (gst.gov.in) or with a tax professional.
Q: When did GST come into effect?
A: GST was implemented in India on 1 July 2017, replacing several earlier indirect taxes.
Calculatr