GST Compliance Checklist for Small Businesses in India

A simpler GST compliance system for small businesses

Last reviewed: September 2026

GST compliance can become difficult when invoices, accounting entries and portal filings are handled as separate tasks. A simple repeatable process helps a small business keep the underlying records ready before a return is due.

Start with the correct filing profile

Regular taxpayers generally use GSTR-1 to report outward supplies and GSTR-3B as the summary return for GST liabilities. Filing frequency depends on the taxpayer's profile.

The GST Portal states that eligible taxpayers with aggregate turnover of up to ₹5 crore, subject to the scheme conditions, may opt for the Quarterly Return Monthly Payment (QRMP) scheme. Under QRMP, GSTR-1 and GSTR-3B are filed quarterly while tax is paid monthly through the prescribed process.

Do not assume a quarterly or monthly frequency from turnover alone. Check the active profile and current return dashboard on the GST Portal.

Keep transaction records complete

For each tax period, maintain reliable records of sales, purchases, credit and debit notes, advances where relevant, exports or interstate transactions where applicable and supporting tax invoices.

Check key invoice data such as GSTIN, invoice number and date, taxable value, tax rate, place of supply and tax amount. Classification and rate questions should be reviewed rather than guessed.

Reconcile before filing

A useful control is to compare accounting records with portal data before the return is finalised. The GST Portal describes GSTR-2B as an auto-drafted input tax credit statement generated from specified supplier and other filings. Review material differences and eligibility before taking a final ITC position.

Use a close-and-file checklist

1. Close sales and purchase records for the tax period.

2. Review missing or duplicate invoices and credit notes.

3. Reconcile outward supplies before GSTR-1.

4. Review GSTR-2B and investigate significant differences.

5. Review GSTR-3B values and ledgers before filing.

6. Confirm payment and filing status on the portal.

7. Save acknowledgements, ARN, challans and reconciliation workings.

8. Track unresolved items into the next review cycle.

Check whether other GST requirements apply

Depending on the business, additional requirements may apply, including e-invoicing, e-way bills, registration amendments, special returns or other reporting. Applicability can depend on turnover, transaction type and notifications, so check the current official position.

Build responsibility into the process

Even a small team should know who collects documents, who reviews accounting entries, who checks portal data and who approves filing. A clear owner and review date can prevent more errors than a complicated spreadsheet used inconsistently.

Krupa Associates supports Ahmedabad businesses with GST registration, return filing and related compliance work. View GST services or contact Krupa Associates.

This checklist is general information only. GST law, thresholds, portal functions and deadlines may change. Confirm current requirements on the GST Portal and obtain advice for your specific facts where needed.