GST calculator

Add or remove GST across all seven Indian slabs.

Compute GST on any amount across all seven Indian slabs (0%, 0.25%, 3%, 5%, 12%, 18%, 28%), add it to a base price or extract it from an inclusive one, and split it into CGST and SGST. Defaults to 18% — the rate for plywood, laminates and hardware — and shares its maths with the quotation builder so a quote and the calculator never disagree.