GST Return Filing in Chennai, Thanjavur, Cuddalore & Ariyalur

Overview

Late GST returns attract late fees, interest at 18% and, if they pile up, cancellation of your registration. Mismatches between your sales returns and your buyers' purchase records also lead to notices and blocked input tax credit.

Our GST return filing service takes the monthly worry off your desk. We collect your sales and purchase bills every month, reconcile input tax credit with GSTR-2B, compute the exact tax payable, file your returns before the due date and send you a WhatsApp summary of what was filed and paid. We also handle annual returns, e-way bills, e-invoicing setup and replies to GST notices.

Returns we file

• GSTR-1 — outward supplies (monthly by the 11th, or quarterly under QRMP with IFF)
• GSTR-3B — summary return with tax payment (monthly by the 20th; quarterly filers in Tamil Nadu by the 22nd)
• CMP-08 and GSTR-4 — for composition dealers (quarterly statement and annual return)
• GSTR-9 and GSTR-9C — annual return and reconciliation statement
• GSTR-7 / GSTR-8 — TDS and TCS under GST, where applicable
• ITC-04, RFD-01 refund applications and LUT for exporters

What our GST Return Filing service includes

• Monthly collection of bills via WhatsApp, email or Google Drive
• Purchase register reconciliation with GSTR-2B before every 3B
• Correct classification under the revised GST rate structure (from 22 September 2025)
• Reverse charge, blocked credit and Rule 42/43 reversals
• E-way bill generation and e-invoice setup for eligible turnover
• Due-date reminders and payment challan preparation
• Reply to ASMT-10, DRC-01A and other GST notices
• Revocation of cancelled GST registration

Documents required

• Sales invoices / billing software export for the month
• Purchase bills and expense bills with GST
• Bank statement (for reconciliation)
• Credit / debit notes issued or received
• GST portal login (or we can work with OTP access)

Rules, rates and limits are as per our understanding of the law at the time of writing and can change through notifications. We always confirm the current position before filing.