0 / 0 done

1. Close the books

Before any return — make sure the month’s documents are complete.

All sales invoices for the month are created and numbered Credit / debit notes posted (if any) Purchase bills entered with correct GSTIN & HSN / SAC Expense bills with ITC eligibility reviewed Stock / inventory valuation looks reasonable

2. GSTR-1 (Outward supplies)

Usually due by the 11th of the next month (confirm current due dates).

B2B invoices listed with buyer GSTIN B2C large / small supplies summarised correctly Export / SEZ invoices tagged if applicable HSN summary prepared where required GSTR-1 filed / submitted on portal

3. GSTR-3B (Summary return & tax)

Pay tax after reconciling liability and ITC.

Outward tax liability matches GSTR-1 / books ITC claimed only on eligible invoices Ineligible ITC reversed (if any) Tax paid via cash / credit ledger GSTR-3B filed on GST portal

4. After filing

Keep proof ready for audits and your CA.

Download acknowledgements / filed returns PDF Share summary with CA / accountant Note next month’s due dates in calendar

Due dates and rules can change. This checklist is a practical helper, not legal advice. TimeGST keeps invoices and ledgers organised so monthly filing takes less scramble.

File with cleaner books

Create GST invoices, track purchases and pull sales summaries from TimeGST — then use this checklist before you hit submit on the portal.

Start Free Trial HSN Finder

Monthly GSTR Filing Checklist

1. Close the books

2. GSTR-1 (Outward supplies)

3. GSTR-3B (Summary return & tax)

4. After filing

File with cleaner books

Hi! What can I help you with?