GST Calculator India 2026 — Add or Remove GST Instantly

Q: What is the difference between CGST, SGST and IGST?

CGST and SGST are charged together on intrastate supplies (same state), each half the GST rate. IGST is charged on interstate supplies and imports. A supply uses either CGST + SGST or IGST, never both.

Free online GST calculator with CGST + SGST / IGST split, updated for GST 2.0 (0%, 5%, 18%, 40%). Built by the chartered accountants at TAXAJ.

🧮 GST Calculator — add to a price or extract from MRP

Add GST

Remove GST

Amount (₹) — price before GST

GST rate

18%

40%

Supply type

Within state · CGST + SGST

Other state · IGST

Base price₹0.00

Total GST₹0.00

CGST₹0.00

SGST₹0.00

IGST₹0.00

Total price₹0.00

GST 2.0 slabs effective 22 Sep 2025. For the exact rate on a specific product, use the HSN / SAC rate finder.

How to use the GST calculator

Pick a mode

Choose Add GST to add tax on a base price, or Remove GST to extract the tax already inside an MRP.

Enter amount & rate

Type the amount and tap the applicable GST rate (0/3/5/18/40%).

Read the split

Pick within-state or inter-state and see the CGST + SGST or IGST breakdown and the total.

How GST is calculated

GST is a percentage of the taxable value of a good or service. There are two directions:

Adding GST (price before tax): GST = Base × Rate ÷ 100 → Total = Base + GST
Example: ₹10,000 at 18% → ₹1,800 GST, total ₹11,800.

Removing GST (from an MRP): Base = MRP ÷ (1 + Rate ÷ 100) → GST = MRP − Base
Example: MRP ₹11,800 at 18% → base ₹10,000, GST ₹1,800.

CGST, SGST and IGST — how the split works

For a supply within the same state (intra-state), the total GST is split equally into Central GST (CGST) and State GST (SGST) — so 18% becomes 9% CGST + 9% SGST. For a supply between two states (inter-state) or an import, the whole amount is charged as Integrated GST (IGST). A supply uses either CGST + SGST or IGST — never both. The calculator applies the correct split automatically.

GST 2.0 rate slabs (2026)

The GST 2.0 reforms (effective 22 September 2025) rationalised the old 12% and 28% slabs into four main rates, plus two special rates:

Slab	What it covers
0%	Fresh produce, life-saving drugs, health & life insurance, education
5%	Packaged foods, toothpaste, soap, medicines, electric vehicles
18%	Standard rate — mobiles, laptops, cars below 1200cc, AC, TV, restaurant, IT & financial services
40%	Sin & luxury — tobacco, pan masala, aerated drinks, luxury cars, online gaming
3% / 0.25%	Special rates — 3% on gold & silver, 0.25% on rough diamonds

GST rate on common purchases

Item	GST rate	Item	GST rate
Mobile phone / laptop	18%	Gold & silver	3%
Car below 1200cc	18%	Car above 1200cc / SUV	40%
Electric vehicle	5%	TV / AC / fridge	18%
Restaurant (non-AC / standalone)	5%	Tobacco / pan masala	40%
Medicines	5%	Health & life insurance	0%

Worked examples

Intra-state sale (same state)

A Delhi business sells consulting worth ₹50,000 to a Delhi client at 18%. GST = ₹9,000 → CGST ₹4,500 + SGST ₹4,500. Invoice total = ₹59,000.

Inter-state sale (different states)

The same ₹50,000 service billed to a Mumbai client is inter-state: the ₹9,000 appears as a single IGST line. Total is still ₹59,000.

Who is this GST calculator for?

E-commerce sellers pricing products for Amazon, Flipkart or Meesho; businesses & freelancers raising tax invoices; shoppers checking the tax inside an MRP; and accountants verifying CGST/SGST/IGST on the fly. Whatever your case, this tool gives the exact split in seconds — and TAXAJ can handle the registration and returns behind it.

GST Calculator — Frequently Asked Questions

What are the current GST rates in India 2026?

After GST 2.0 (effective 22 September 2025) India has four main slabs — 0% (fresh produce, life-saving drugs, insurance, education), 5% (packaged foods, medicines, EVs), 18% (mobiles, laptops, cars below 1200cc, AC, TV, restaurant and IT/financial services) and 40% (tobacco, pan masala, aerated drinks, luxury cars, online gaming) — plus special rates of 3% on gold/silver and 0.25% on rough diamonds. The old 12% and 28% slabs were removed.

How do I calculate GST on a price?

To add GST: GST = Base × rate ÷ 100; Total = Base + GST; for intra-state, CGST = SGST = GST ÷ 2. To remove GST from an MRP: Base = MRP ÷ (1 + rate ÷ 100); GST = MRP − Base. Example: MRP ₹11,800 at 18% → base ₹10,000, GST ₹1,800 (CGST ₹900 + SGST ₹900).

What is the difference between CGST, SGST and IGST?

CGST and SGST apply together on intra-state supplies (same state), each being half the GST rate. IGST applies on inter-state supplies and on imports. You never charge both CGST+SGST and IGST on the same supply.

Is GST registration mandatory for e-commerce sellers?

Yes. Sellers on Amazon, Flipkart, Meesho and similar platforms must register for GST regardless of turnover — the ₹40 lakh (goods) / ₹20 lakh (services) threshold does not apply to e-commerce sellers. Register before your first sale. TAXAJ can handle your GST registration.

What is TCS in GST for e-commerce sellers?

E-commerce operators collect TCS at 1% (0.5% CGST + 0.5% SGST, or 1% IGST inter-state) on the net taxable supplies made by registered sellers through their platform. It is deducted from payouts and claimed as credit in GSTR-3B once it appears in GSTR-2B.

Is GST calculated on the MRP or the base price?

MRP is already GST-inclusive, so to find the GST inside an MRP you "remove" GST using the reverse formula. When you quote a price before tax, you "add" GST on top. The calculator above does both.

Can I claim input tax credit (ITC) on the GST I pay?

A GST-registered business can claim input tax credit on GST paid on eligible business purchases, set off against the GST collected on sales, provided the supplier has filed and the invoice appears in your GSTR-2B. Personal purchases are not eligible.

What is the GST rate on mobile phones, gold and cars?

Mobile phones and laptops: 18%. Gold and silver: 3%. Cars below 1200cc: 18%; cars above 1200cc / SUVs: 40%. Electric vehicles: 5%. TVs, AC, washing machines and refrigerators: 18%.

Need more than a calculation?

TAXAJ handles GST registration, monthly returns (GSTR-1 & 3B), refunds, LUT and GST notices — end to end.

Talk to a TAXAJ GST expert →