GST & Sales Tax Calculator
Add tax to a net price, or take tax out of a price that already includes it. In GST mode, tell us whether the sale is within your state or to another state, and we split the tax accordingly. We never assume a rate — choose the rate that applies to your product.
Free, no sign-up Runs in your browser
How to use the gst & sales tax calculator
- 01
Price and rate
Enter the amount and the tax rate for your product or service.
- 02
Add or remove
“Add tax” for net prices; “Remove tax” for prices that already include tax.
- 03
Breakdown
Net price, tax, total — and CGST/SGST or IGST in GST mode.
Good to know
- We don't know the GST rate for your product — check the HSN/SAC rate schedule or ask your accountant.
- Results are rounded to the nearest paisa (or cent).
- Calculations run in your browser.
Frequently asked questions
How do I remove GST from a price?
Net = gross ÷ (1 + rate ÷ 100). For ₹1,180 at 18%: 1180 ÷ 1.18 = ₹1,000, so GST is ₹180.
When is it CGST + SGST?
When supplier and place of supply are in the same state or UT. Each is half the rate.
What GST rates exist?
Common slabs are 0%, 5%, 18% and 40%, plus special rates such as 0.25% and 3%. Rates change — check the latest notification.