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GST Calculator

Forward (taxable + GST) or reverse (inclusive → split).

Adjust values — results update instantly

Taxable / net

₹10,000

GST

₹1,800

Invoice total

₹11,800

How it works

Add GST: GST = taxable × rate; total = taxable + GST. Reverse GST: taxable = inclusive ÷ (1 + rate); GST = inclusive − taxable.

Example

₹10,000 taxable at 18% → GST ₹1,800, total ₹11,800. Inclusive ₹11,800 at 18% → taxable ₹10,000.

Frequently asked questions

Does this split CGST and SGST?
For intra-state supply, GST is often shown as CGST + SGST (each half of the rate). The total GST amount is the same.
Which GST rate should I use?
Pick the slab that matches your goods or services (5%, 12%, 18%, 28%, or exempt/zero-rated items).

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Results are indicative only and not financial, tax, or medical advice. Verify important decisions with qualified professionals or official sources.