What does “GST inclusive” mean?
A GST-inclusive price already contains the tax. Retail MRPs in India are inclusive of all taxes, so a ₹590 product at 18% has ₹500 of value and ₹90 of GST built into it.
Formula
Example at 5%: ₹2,100 × 100 ÷ 105 = ₹2,000 taxable value; GST = ₹100 (CGST ₹50 + SGST ₹50).
Why the slab comparison helps
If you are not sure which rate a product falls under after the September 2025 changes, the table under the calculator shows the tax inside your amount at every current slab, side by side. Use it to sanity-check a bill — then confirm the correct rate from the HSN code.
Common mistake
Taking 18% of the inclusive price overstates the tax. On ₹1,180, 18% is ₹212.40, but the real GST is ₹180. See GST formulas for why.