Know your input credit before you file.
Import GSTR-2B and every purchase is matched against what your suppliers filed. The gaps are in rupees, not row counts, so the conversation with a supplier starts with a number.
- GSTR-1 and 3B built from the vouchers, with HSN summaries.
- Unbooked lines become purchase vouchers in one step.
- Filed periods can be locked so they never move again.