What are the GST rates in India in 2026?

Following the GST 2.0 reform effective 22 September 2025, the main slabs are 5% and 18%, with 0% for essentials and a 40% rate for luxury and sin goods. A few niche rates such as 3% (gold) and 0.25% (rough diamonds) also apply.

How do I add GST to an amount?

GST amount = base amount x GST rate / 100. The total price = base amount + GST amount. For example, on Rs 10,000 at 18%, GST is Rs 1,800 and the total is Rs 11,800.

How do I remove GST from a total price?

Base amount = total / (1 + GST rate/100). For example, if Rs 11,800 includes 18% GST, the base amount is 11,800 / 1.18 = Rs 10,000 and the GST is Rs 1,800.

What is the difference between CGST, SGST and IGST?

For a sale within the same state, GST is split equally into CGST (central) and SGST (state). For an inter-state sale, the same total is charged as a single IGST instead.

GST Calculator

Add GST to a base amount or remove GST from a total price. Get the GST amount and the CGST and SGST split instantly, using the latest GST 2.0 rates.

Calculation Type

Add GST on top of a base (GST-exclusive) amount.

Amount (before GST)

₹

₹100₹1,00,00,000

Ten Thousand Rupees

GST Rate

GST 2.0 (since Sept 2025) uses mainly 5% and 18%, with 40% for luxury and sin goods.

Base Amount

₹10,000

GST (18%)

₹1,800

Total Amount

₹11,800

CGST

₹900

9% central GST

SGST

₹900

9% state GST

GST is split equally into CGST and SGST for intra-state sales, or charged as IGST for inter-state sales. Rates shown follow the GST 2.0 structure effective 22 September 2025.

What is GST?

Goods and Services Tax (GST) is India's unified indirect tax on supply of goods and services. The 2026 framework simplifies the slabs: a 5% essentials rate, an 18% standard rate, and a 40% luxury/sin-goods rate replace the older 12% and 28% slabs (verify the latest GST Council notifications for sector-specific changes). GST has two components for intra-state supply: CGST (Central) and SGST (State), each equal to half the total GST. For inter-state supply, a single IGST equal to the full GST rate applies. This calculator handles both adding GST to a base price and removing GST from a GST-inclusive price.

How to use the GST Calculator

Choose add or remove GST. Add: price is exclusive of GST. Remove: price is inclusive of GST.
Enter the amount. The base price (add mode) or the inclusive price (remove mode).
Select the GST rate. 5%, 18% or 40% (the 2026 simplified slabs).
Review the breakdown. Base amount, GST amount, CGST/SGST split and total.
Use for invoicing. Especially handy for freelancers, traders and consultants.

Formula and method

Add GST: GST = Base × Rate / 100, Total = Base + GST Remove GST: Base = Total × 100 / (100 + Rate), GST = Total − Base CGST = SGST = GST / 2 (intra-state)

Adding GST inflates the base; removing extracts the base from a GST-inclusive price. CGST and SGST are equal halves of the GST for intra-state transactions; for inter-state, IGST replaces the split.

When this calculator is useful

Invoicing. Quickly split a quoted price into base + CGST + SGST.
Buying decisions. Know the real price before tax.
Reverse calculation. Restaurant or retail bill is GST-inclusive? Extract the base.
Quoting clients. Toggle between exclusive and inclusive prices when quoting.
Cross-check vendor invoices. Make sure CGST and SGST add up correctly.

GST Calculator

What is GST?

How to use the GST Calculator

Formula and method

When this calculator is useful

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