Two returns that fit together
GST filing for most sellers means two returns. GSTR-1 lists your outward sales in detail. GSTR-3B is a monthly summary where you declare your tax and actually pay it. One reports, the other settles. Once you see how they connect, monthly filing stops being scary.
What GSTR-1 is
GSTR-1 is your sales statement. It lists your invoices - who you sold to, the taxable value, and the tax. It's how the government sees your outward supply, and it's what lets your business buyers claim their input credit. Accurate invoices make an accurate GSTR-1. Messy ones make a painful one.
What GSTR-3B is
GSTR-3B is the summary return where you total your sales and input credit, work out the net tax, and pay it. It's less detailed than GSTR-1, but it's where the money moves. The two must agree. If your 3B summary doesn't match your GSTR-1 details, expect questions.
E-commerce sellers file monthly
Selling online usually means monthly returns, whatever your turnover. You're also outside the Composition Scheme, so the simpler quarterly option isn't open to you. Treat filing as a fixed monthly task, like paying rent, and it never piles up into a crisis.
A simple monthly rhythm
- Through the month, keep your invoices clean.
- Early next month, reconcile your sales and any marketplace TCS.
- File GSTR-1 before its due date.
- Then file GSTR-3B before its due date.
- Repeat the same steps, in the same order, every month - boring is exactly what you want here.
Where sellers get caught
The usual traps are late filing, which brings late fees, and mismatches between GSTR-1 and GSTR-3B. Both come from leaving it to the last day. Reconcile as you go, and file a few days early, and you sidestep both. Discipline beats cleverness with tax.
Where your store helps
The Storemate organises your sales into GSTR-1 and GSTR-3B buckets you can export, so the figures are ready when you file. You or your CA still file on the portal - the store just makes sure the numbers add up first. This is a starting point, not tax advice; confirm your filing with a professional.