GSTR-1 filing for small shops, explained simply
A plain-English walk-through of GSTR-1 for retailers and traders — what it is, when to file, and the exact reports to export from your billing software.
If you raise GST invoices, you have to file GSTR-1 — the return that reports your outward supplies (sales) to the government. For most small shops it sounds scarier than it is. Here's the whole thing in plain language.
What GSTR-1 actually is
GSTR-1 is a monthly or quarterly summary of every sales invoice you issued — who you sold to, how much, and how much GST you collected. The government uses it to match your sales against your buyers' purchase claims.
When do you file it?
- Turnover up to ₹5 crore: you can file quarterly (under the QRMP scheme).
- Turnover above ₹5 crore: you file monthly, by the 11th of the next month.
What you need before you start
- Your GSTIN and portal login
- All sales invoices for the period
- Credit/debit notes issued
- B2B vs B2C split (invoices to registered businesses vs consumers)
The easy way: export from your billing software
Doing this by hand in Excel is where mistakes creep in. Good billing software already has your invoices, so it can produce a GSTR-1-ready report in a click.
In LotusAppz, open Reports → GST → GSTR-1. Pick your period, and it groups everything the portal expects — B2B, B2C large, B2C small, credit/debit notes and HSN summary. Export it, and either key the totals into the portal or upload the file.
Common mistakes to avoid
- Wrong HSN codes — set them once on each product and they flow through automatically.
- Missing credit notes — a cancelled or returned sale must be reported, not just deleted.
- B2B/B2C mix-ups — a sale to a registered dealer needs their GSTIN.
The bottom line
GSTR-1 is really just "a tidy list of your sales." If your billing is clean, the return is a formality. If you're still doing it in Excel every month, that's the sign it's time for software that files it for you.
Want to see it on your own data? Book a free demo →