Calculator

GST CALCULATOR

Calculate GST with all slabs, currency conversion, slab info, invoice preview & ITC check.

Private by design No signup · Free

GST Calculator

Amount (₹)

Mode

GST Slab

Transaction Type

Estimates for education only — not financial, tax, or investment advice. Verify with a qualified professional. Disclaimer

Base Amount

₹1,000.00

Total GST

₹180.00

Total Amount

₹1,180.00

CGST (9%)

₹90.00

SGST (9%)

₹90.00

One Thousand One Hundred and Eighty Rupees Only.

ITC Eligibility Check

Invoice Itemizer

Description	Price (₹)	Qty	GST	Net (₹)
			Taxable:	₹0.00
			Total GST:	₹0.00
			Grand Total:	₹0.00

History

Frequently Asked Questions

How does the GST Calculator work?

Enter amount, select 5/12/18/28% slab and inclusive vs exclusive mode. The tool splits CGST+SGST vs IGST locally, shows base, tax and total, and handles Indian round-off for invoice-ready totals.

Is the Gst Calculator free to use?

Yes, it is completely free with no hidden fees, subscriptions, or usage limits. No sign-up or account required. With GST Calculator, re-run with your own inputs before deciding.

How accurate are the results?

Tax splits use slab arithmetic with invoice round-off to 2 decimals. Confirm HSN-linked slab and e-invoice rules before filing, since exemptions shift CGST/SGST vs IGST treatment.

Is my data safe when using Gst Calculator?

Absolutely. All calculations happen locally in your browser. Your data never touches any server and is never stored or tracked. With GST Calculator, re-run with your own inputs before deciding.

What is the difference between exclusive and inclusive GST?

Exclusive GST means the amount entered is before tax — GST is added on top. Inclusive GST means the amount entered already includes tax — GST is extracted to find the base price.

What is the difference between CGST+SGST and IGST?

CGST (Central GST) and SGST (State GST) apply to intra-state transactions (within the same state), split equally. IGST (Integrated GST) applies to inter-state transactions (across states), collected as a single tax.

What GST slabs are available in India?

India has six main GST slabs: 0% (essential goods), 3% (gold/diamond), 5% (basic necessities), 12% (standard goods), 18% (majority of goods/services), and 28% (luxury/demerit goods).

Can I use a custom GST rate?

Yes, click the Custom button and enter any rate. This is useful for special rates or non-Indian GST calculations.

How does the Invoice Itemizer work?

Add multiple items with different prices, quantities, and GST rates. The itemizer calculates the taxable value, total GST, and grand total for the entire invoice.

How to Use

Enter Amount

Type the amount and select exclusive (add GST) or inclusive (remove GST) mode using the toggle.

Pick GST Rate

Choose a slab (0-28%) or enter a custom rate. Results update instantly with CGST/SGST or IGST breakdown.

Itemize Invoice

Use the invoice itemizer to add multiple line items with different rates. The grand total updates automatically.

How to Calculate

The Gst Calculator uses transparent calculation logic to compute results based on your inputs. Enter your values, select Compute, and the tool processes everything instantly using optimized algorithms — all within your browser.

About the GST Calculator

The GST Calculator is a free online tool for calculating Goods and Services Tax for Indian tax slabs. It supports exclusive and inclusive modes, intra-state (CGST+SGST) and inter-state (IGST) transactions, and includes an invoice itemizer for multi-item invoices.

All calculations happen locally in your browser. No data is sent to any server, no sign-up required, and your calculation history is saved in local storage for reference between visits.

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Methodology & feedback

Figures run locally in your browser from the values you enter (page updated 2026-10-02). Estimates are educational only — verify finance, tax and health decisions with a qualified professional (see Disclaimer). Spotted an error? Report it via contact and we correct with a new update date.

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