Zero Late Fees
Timely filing every month ensures you never pay unnecessary late fees or interest.
Tax & Compliance
GST Return Filing
Never miss a GST deadline again — expert monthly, quarterly, and annual GST filing with reconciliation and audit support by qualified CAs.
Response within a few hours
Talk to a CA / CS / legal specialist — Mon – Sat · 11:00 AM – 7:00 PM.
+91 70444 10150
Overview
What is GST Return Filing?
GST return filing is a mandatory monthly and annual compliance for all GST-registered businesses. Failure to file on time attracts late fees, interest, and can lead to GST registration cancellation. Calcutta Corporate’s CA team handles all types of GST returns — GSTR-1, GSTR-3B, GSTR-9, GSTR-9C — with accurate reconciliation, ITC optimisation, and timely filing every month so you never face penalties.
Why do it
Key Benefits
ITC Optimisation
We identify and claim maximum Input Tax Credit to reduce your GST outflow.
Reconciliation
GSTR-2A/2B reconciliation to catch mismatches before they become notices.
Fast Turnaround
Returns filed promptly once sales and purchase data is shared — no delays.
All Return Types
GSTR-1, GSTR-3B, GSTR-4, GSTR-9, GSTR-9C — all handled by our team.
Notice Handling
GST notices and queries from the department are managed and responded to professionally.
How it works
Step-by-Step Process
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01
Data Collection
You share your monthly sales and purchase data — invoices, purchase bills, or Tally/accounting software export.
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02
Reconciliation & Review
We reconcile your data with GSTR-2A/2B to ensure ITC accuracy and catch mismatches.
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03
Return Preparation
GSTR-1 (outward supplies) and GSTR-3B (summary return) are prepared with full accuracy.
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04
Client Review & Approval
We share a summary for your review before final filing — you confirm and approve.
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05
Filing & Acknowledgement
Returns are filed on the GST portal and filing acknowledgements are shared with you.
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06
Annual Return (GSTR-9)
At year end, we file the annual GST return with reconciliation and audit support if required.
What you need
Documents Required
- GSTIN and login credentials
- Sales invoices / sales register for the month
- Purchase invoices / purchase register
- Bank statements (for reconciliation)
- Previous GSTR filings (if switching CA)
- E-way bill details (if applicable)
- Tally or accounting software data (optional)
- Debit / credit note details
FAQs
Frequently Asked Questions
What is the due date for GSTR-3B?
GSTR-3B is due on the 20th of every month for monthly filers. Quarterly filers have different due dates.
What is the late fee for delayed GST filing?
₹50 per day (₹20 for nil returns) up to a maximum of ₹5,000 per return — plus 18% interest on tax due.
What is GSTR-2B reconciliation?
It's matching your purchase data with what suppliers have uploaded in GSTR-1, to ensure you claim only valid ITC.
Can you handle GST for multiple states?
Yes, we handle GST compliance for businesses registered in multiple states across India.
Do you handle GST notices and audits?
Yes, GST notices, assessments, appeals, and audit support are all part of our GST compliance services.
Ready to get started with GST Return Filing?
Our team will guide you through every step — from documentation to final registration. Most services are completed faster than you expect.