Instant Tax Tool
Online GST Calculator: Accurate & Instant
Calculate Goods and Services Tax (GST) for any amount. Switch between GST Inclusive (reverse tax) and GST Exclusive, and see clear CGST, SGST, and IGST splits.
How GST is Calculated: Formulas & Logic
1. GST Exclusive Formula
Used when product price does NOT include tax yet:
GST Amount = (Price × GST Rate) / 100
Gross Total = Price + GST Amount
2. GST Inclusive Formula
Used when retail MRP already includes GST:
GST Amount = Total − [Total × {100 / (100 + GST Rate)}]
Base Price = Total − GST Amount