GST Return Filing in India: Types, Due Dates, Process and Late Fees

These combined figures reflect CGST plus the corresponding SGST or UTGST amount under the rationalisation notifications listed in the GST Council notification directory. Other returns, annual returns and notified relief periods can have different rates or caps. Always rely on the liability computed for the correct form and period on the portal.

Delayed tax payment generally attracts interest at 18% per annum on the net cash tax liability for the period of delay. For example, ₹1,20,000 paid 15 days late produces indicative interest of about ₹888: ₹1,20,000 × 18% × 15 ÷ 365. The portal calculation and applicable legal rounding should be checked before payment.

Can a Filed GST Return Be Corrected?

A filed GST return generally cannot be revised by reopening it. GSTR-1A allows an optional same-period correction after GSTR-1 and before GSTR-3B, and it can be filed only once for that period. Other permitted outward-supply errors may be amended in a later GSTR-1 within the statutory time limit.

GSTR-3B is not revised. Eligible errors are addressed through a later return, tax payment, ITC reversal, or Form DRC-03, depending on the issue. A professional review is advisable where the correction changes tax, interest, place of supply or another person’s ITC.

The law also restricts furnishing specified returns after three years from their due date. It covers statements or returns under sections 37, 39, 44 and 52, subject to any permitted relaxation. Do not treat the three-year limit as extra filing time, because late fee, interest, notices and sequential filing blocks can arise much earlier.

Common GST Return Filing Mistakes

• Filing GSTR-1 without matching sales books, e-invoices and credit notes.

• Claiming ITC from purchase books without checking GSTR-2B and eligibility rules.

• Treating GSTR-2B as a return or assuming every auto-populated figure is final.

• Missing reverse-charge liability, ITC reversals, exports or advances for services.

• Selecting the wrong GSTIN, return period, place of supply, HSN or tax rate.

• Filing a nil return when auto-populated data, liability or transactions exist.

• Assuming cancellation removes all pending returns and final-return duties. Review the GST registration cancellation guide before closing a GSTIN.

• Waiting until the due date and losing time for reconciliation, payment or portal errors.

GST Filing Cost and Completion Time

There is no separate government charge merely for filing an on-time return. The payable amount may include output tax, reverse-charge tax, interest, late fees, or other liabilities. Software and professional fees vary with transaction volume, number of GSTINs, reconciliation work and the return type; there is no universal government-approved professional rate.

GST return filing is a self-declaration, not an approval application. A valid filing normally generates an ARN, but later scrutiny remains possible. Preparation time depends on record quality and transaction complexity.

Conclusion

Accurate GST Filing begins before the portal is opened. Select the correct form, close the books, reconcile outward supplies and GSTR-2B, review tax and ITC, pay the cash liability, and retain the filed return with its ARN.

Due dates, exemptions and portal controls can change through notifications. A monthly compliance calendar and documented review process make GST return filing more reliable and reduce avoidable late fees, interest and correction work.