Quick GST checks
Use this for rough bill checks and training. Filing, e-invoicing and HSN/SAC selection need your GST system and adviser.
These calculators use standard restaurant maths for education. They are not accounting, tax or legal advice — confirm important decisions with your accountant or adviser.
Frequently asked questions
How do you add GST to a restaurant bill?
GST amount = base × rate ÷ 100. Total = base + GST. For intra-state supplies, CGST and SGST are typically half each.
How do you remove GST from an inclusive price?
Base = inclusive amount ÷ (1 + rate ÷ 100). GST = inclusive amount − base.