Add GST to a base amount, or remove GST from a gross amount. Supports all standard Indian slabs.
For intra-state sales, GST is split equally into CGST (Central) and SGST (State). For 18% GST, that's 9% CGST + 9% SGST. This calculator shows that split below the totals.
Choose "Remove GST" mode. The tool treats your amount as GST-inclusive and works backward to find the base amount and the GST portion.
The main slabs are 5%, 12%, 18% and 28%. Some goods are exempt (0%) or taxed at special rates.