Most billing software produces a GST invoice. Far fewer produce one that survives a reconciliation. The difference sits in these features.
Non-negotiable
- Correct CGST / SGST / IGST determination from place of supply, not from a manual dropdown
- HSN and SAC codes on the item master, with the right digit count for your turnover
- E-invoice IRN generation and QR code where your turnover requires it
- E-way bill generation with distance and vehicle details
- Credit and debit notes linked to the original invoice, not free-standing
- Reverse charge handling for applicable purchases
What your accountant will actually ask for
- GSTR-1 and GSTR-3B summaries generated from the sales data, not re-keyed
- A purchase register that reconciles against GSTR-2B so input credit is not lost
- Invoice series that are continuous and cannot be silently deleted
- An audit log showing who edited an invoice and when
- Export to Tally-compatible XML for the accounts team
The mistake that costs money
Input tax credit is lost when purchase entries do not match what suppliers filed. Software that shows you a monthly mismatch report between your purchase register and GSTR-2B pays for itself in a single quarter for most trading businesses.