GST Calculator 2026
Add GST to a price or remove GST from an inclusive amount at the current GST 2.0 slab rates (5%, 18%, 40%, and 3% for gold), with the CGST/SGST or IGST breakdown.
Total price with GST
₹1,180
- Base amount
- ₹1,000
- CGST (9%)
- ₹90
- SGST (9%)
- ₹90
- Total GST
- ₹180
- Total price
- ₹1,180
How this GST calculator works
Pick a mode, enter the amount, and choose the GST rate. Add GST takes a price before tax and adds GST on top, which is what you need when raising an invoice or quoting a price. Remove GST takes a GST-inclusive price (an MRP, a bill total) and works backwards to the base amount and the tax portion, which is what you need for expense claims, input tax credit entries or checking a bill.
The calculator also shows how the tax splits between CGST and SGST for a sale within one state, or as IGST for an inter-state sale. The split never changes the total: an 18% rate is either 9% + 9% or a single 18%.
The formulas in plain language
Adding GST: GST amount = base price x rate / 100, and total = base + GST. Removing GST: base price = inclusive price / (1 + rate / 100), and the GST amount is the difference. The common mistake is subtracting the rate percentage from the inclusive price directly; that overstates the tax because the percentage applies to the base, not the total.
Worked examples
Adding: a service invoice of ₹2,500 at 18% GST attracts ₹450 of tax (CGST ₹225 + SGST ₹225), so the invoice total is ₹2,950.
Removing: a grocery item with an MRP of ₹599 in the 5% slab has a base price of ₹570.48 and ₹28.52 of GST built into the printed price.
GST 2.0 slab structure (effective 22 September 2025)
| Rate | What it covers |
|---|---|
| 0% (exempt) | Many essentials: UHT milk, paneer, Indian breads, life and health insurance premiums, most education and healthcare services |
| 3% | Gold, silver, platinum and jewellery (5% on making charges) |
| 5% | Merit and daily-use goods: packaged foods, butter and ghee, namkeen, footwear and apparel in the mass segment, bicycles, umbrellas, most former 12% items |
| 18% | Standard rate: most services, electronics, ACs, TVs, washing machines, cement, small cars, most former 28% items |
| 40% | Special rate for sin and luxury goods: pan masala, tobacco products, aerated and sugary drinks, luxury cars, yachts, private aircraft, betting and casinos |
What changed under GST 2.0
The reform of 22 September 2025 collapsed the old four-slab structure (5%, 12%, 18%, 28%) into two main slabs plus a special rate. In broad strokes: the 12% slab merged down into 5%, the 28% slab merged down into 18%, and a new 40% rate took over the demerit goods that previously paid 28% plus compensation cess. For the full item-by-item list, see our guide to the new GST rates in 2026. If you are new to the tax itself, start with GST full form and basics or the complete GST rates list 2026.
Frequently Asked Questions
What are the GST slabs in 2026?
Since the GST 2.0 reform took effect on 22 September 2025, there are two main slabs: 5% (merit and daily-use goods) and 18% (the standard rate for most goods and services). A special 40% rate applies to sin and luxury goods such as pan masala, tobacco, aerated drinks and luxury cars. Gold, silver and jewellery stay at 3%, and many essentials are exempt (0%).
How do I calculate GST on a price?
Multiply the base price by the GST rate: GST = price x rate / 100. For example, 18% GST on ₹1,000 is ₹180, so the total is ₹1,180. This calculator does it instantly and also splits the GST into CGST and SGST for sales within a state.
How do I remove GST from an MRP or GST-inclusive price?
Divide the inclusive price by (1 + rate/100). For an item priced ₹1,180 with 18% GST: 1180 / 1.18 = ₹1,000 base price, so the GST portion is ₹180. Use the Remove GST mode above to do this automatically.
What is the difference between CGST, SGST and IGST?
On a sale within one state, GST is split equally between the Centre (CGST) and the state (SGST): an 18% rate becomes 9% CGST + 9% SGST. On an inter-state sale, the full amount is charged as IGST (18% in the same example). The total tax is identical either way.
Which items moved to new rates under GST 2.0?
The old 12% and 28% slabs were abolished. Most 12% items (butter, ghee, namkeen, umbrellas, bicycles and more) moved down to 5%, and most 28% items (ACs, TVs, washing machines, cement, small cars) moved down to 18%. Sin goods such as pan masala, tobacco and sugary drinks, and luxury items such as high-end cars and yachts, moved to the 40% special rate.
What is the GST rate on gold in 2026?
Gold, silver, platinum and jewellery attract 3% GST on the metal value. Jewellery making charges are taxed separately at 5%. Use the 3% (gold) button above for the metal value.