GST Calculator

The GST Calculator offers a focused, domain-first approach for India GST calculations. It accepts a taxable base, a tax rate, and a supply type, then outputs a detailed tax breakdown and the net payable amount. It is suitable for accountants, freelancers, and SME owners who need quick, auditable estimates for invoices or filing.
\n\nConceptually, the tool normalizes inputs, determines intra-state versus inter-state supply from the place of supply, and applies standard GST arithmetic. For intra-state supplies, it splits the rate into CGST and SGST; for inter-state, it computes IGST. The results include two-decimal monetary values and a clear total, enabling accurate invoicing and record-keeping. Example: base 100000, rate 18%, intra-state yields CGST 9000, SGST 9000, total GST 18000, net payable 118000.
\n\nUnique value lies in its independence from tax portals, ease of integration into accounting workflows, and support for scenario planning (rate changes, supply-type changes) with INR formatting and precise rounding. It helps users verify tax exposure, compare pricing options, and reduce manual errors in calculations.
\n\nCore features include input validation, explicit tax breakdowns, two-decimal rounding, and a transparent output set (tax components and net payable) for invoicing and compliance planning.