What is GST billing software?

GST billing software is billing software specifically built to handle India's GST requirements, automatically calculating CGST, SGST, or IGST based on the place of supply, applying the correct HSN or SAC codes, and generating invoices that meet all 16 mandatory fields under Rule 46 of the CGST Rules so they remain valid for input tax credit claims. It typically also supports GST return-ready reporting, since every invoice needs to reconcile with what's eventually filed in GSTR-1. Billoxy's GST Invoicing Tool is purpose-built around exactly this, automating tax calculation, code assignment, and mandatory field compliance on every invoice.