GST Calculator — Add or Remove GST (GST 2.0 Rates)

Add GST to a price or take it out of a GST-inclusive amount, with the CGST/SGST or IGST split — updated for the GST 2.0 rates in force since 22 September 2025.

Amount

₹

Amount is

GST rate

Or enter any rate (overrides the list)

Supply

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📘 Read the full guide: GST 2.0 — New Rates and How to Calculate GST →

How to use the GST Calculator — Add or Remove GST (GST 2.0 Rates)

Enter the amount.
Choose whether the amount already includes GST.
Pick the GST rate (or type any rate).
Choose same-state or inter-state supply to see the CGST/SGST or IGST split.

Formula used

Add GST: GST = Amount × rate, Total = Amount × (1 + rate)

Remove GST: Base = Total ÷ (1 + rate). ₹1,18,000 at 18% → ₹1,00,000 + ₹18,000 GST.

Split: same-state supply = half CGST + half SGST; inter-state = full IGST.

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GST Calculator — Add or Remove GST (GST 2.0 Rates) — FAQs

What are the GST rates after GST 2.0?▾

From 22 September 2025 most goods and services fall into two slabs, 5% and 18%, with a 40% rate for luxury and sin goods. The 12% and 28% slabs were removed for most items, and special rates such as 3% on gold remain.

What is the GST on cement now?▾

Cement moved from 28% to 18% on 22 September 2025. Steel and TMT bars stay at 18%, and sand-lime bricks fell from 12% to 5%.

What GST applies to construction works contracts?▾

Most works contracts and contractor services are taxed at 18%. Government and affordable-housing contracts have specific entries in the rate notification, so confirm the rate for your contract before billing.

How do I remove 18% GST from a price?▾

Divide by 1.18. ₹1,18,000 ÷ 1.18 = ₹1,00,000 before GST and ₹18,000 GST. Taking 18% of the total gives the wrong answer.

What is the difference between CGST, SGST and IGST?▾

For a sale within one state, GST is split equally into CGST (central) and SGST (state). For a sale to another state, the whole amount is IGST. The total tax is the same either way.

How to use the GST Calculator — Add or Remove GST (GST 2.0 Rates)

Formula used

GST Calculator — Add or Remove GST (GST 2.0 Rates) — FAQs

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