GST Calculator

Add or remove GST at 5%, 12%, 18% or 28%. See CGST/SGST split instantly — free India GST calculator.

Part of ContentVerse India Tools — free daily-use checkers for Indian users.

GST calculator

Amount before GST (₹)

GST rate (%)

Taxable value

₹10,000

GST amount

₹1,800

CGST

₹900

SGST

₹900

Total

₹11,800

For interstate supply, IGST equals full GST (CGST+SGST split is for intra-state). Confirm HSN rate on the GST portal.

How to use GST Calculator

GST calculator helps Indian businesses and freelancers split GST amount from invoice totals at common rates (5%, 12%, 18%, 28%). Useful for quotes and invoice checks.

Exclusive vs inclusive GST

Exclusive: tax is added on top of the base amount. Inclusive: the total already contains GST and you reverse-calculate the base. Know which mode your invoice uses.

This tool does not file GST returns. Use the GST portal for registration, GSTR filing, and official computations.

Worked examples

Example — ₹10,000 + 18% GST (exclusive)

Base ₹10,000 at 18% adds ₹1,800 tax → invoice total ₹11,800. Inclusive mode does the reverse: from a ₹11,800 total, recover base and tax components.

Related tools & hubs

In this topic: Salary & income tax

Compare old vs new tax regimes for planning — always verify on the official portal before filing.

Frequently asked questions

Is the GST Calculator free on ContentVerse India?

Yes. All India utility tools on ContentVerse India are free to use with no sign-up required.

Is this an official government website?

No. ContentVerse India is an independent platform. We use public datasets and open APIs. For official records, use government portals like Parivahan, GST, FoSCoS, or ECI.