GST Return Filing by Accountant – Complete Guide 2026

Introduction

GST return filing is a mandatory compliance for all registered taxpayers in India. Errors in reporting, ITC mismatch, or wrong tax payments can lead to penalties and notices. With professional accountant support, businesses can ensure accurate filing, proper reconciliation, and smooth compliance under GST law.

What is GST Return Filing?

GST return filing is the process of reporting sales, purchases, tax liability, and input tax credit to the government through prescribed GST forms.

Legal Provisions (Latest Updates)

• Section 37 – GSTR-1 (Outward supply)
• Section 39 – GSTR-3B (Return filing)
• Rule 61 – GST returns
• Rule 87(13) – PMT-09 (Cash ledger adjustment)
• QRMP Scheme – Quarterly return option

Who Should Use This Service

• All GST registered taxpayers
• Businesses filing monthly or quarterly returns
• E-commerce operators and sellers
• Service providers and traders
• Startups and SMEs

Types of GST Returns (Complete List)

🧾 Regular Returns

• GSTR-1 – Sales details (B2B & B2C)
• GSTR-3B – Summary return with tax payment
• GSTR-2A – Auto-generated purchase data (view only)
• GSTR-2B – Fixed ITC statement for claim

📊 Annual Returns

• GSTR-9 – Annual summary return
• GSTR-9C – Reconciliation & audit (above threshold)

🏪 Special Category Returns

• GSTR-4 – Composition taxpayers (annual)
• CMP-08 – Quarterly tax payment (composition)
• GSTR-5 – Non-resident taxable person
• GSTR-5A – OIDAR services
• GSTR-6 – Input Service Distributor (ISD)
• GSTR-7 – TDS under GST
• GSTR-8 – TCS by e-commerce operators

🔄 Other Important Returns

• GSTR-10 – Final return after cancellation
• GSTR-11 – UIN holders (embassies, etc.)

⚡ Additional Forms (Important)

• PMT-06 – Tax payment (QRMP scheme)
• ITC-04 – Job work reporting
• PMT-09 – Cash ledger adjustment (wrong tax payment correction)

Role of PMT-09 in GST Filing

PMT-09 allows correction of tax deposited under the wrong head (CGST/SGST/IGST) by reallocating funds within the cash ledger.

Use Cases:
• Wrong tax payment correction
• Adjustment before filing GSTR-3B
• Avoid extra payment

Process / Steps

1. Collect sales and purchase data
2. Reconcile with books and GST portal
3. Verify ITC using GSTR-2B
4. Calculate tax liability
5. Adjust cash ledger (PMT-09 if required)
6. File GSTR-1 and GSTR-3B
7. Make tax payment

Required Documents

• Sales invoices
• Purchase invoices
• Bank statements
• Previous GST returns
• ITC details

Due Date / Penalty

• GSTR-1: Monthly/Quarterly (11th)
• GSTR-3B: 20th / 22nd / 24th

Penalty:

• ₹50 per day (₹20 for nil return)
• Interest @18% per annum

Benefits of Filing Through Accountant

• Accurate return filing
• Proper ITC claim
• Error correction using PMT-09
• Avoid penalties and notices
• Time-saving and efficient

Common Mistakes to Avoid

• Mismatch in GSTR-1 & GSTR-3B
• Incorrect ITC claim
• Late filing
• Wrong tax payment (not using PMT-09)

FAQs

1. Is GST return filing mandatory?
Yes, for all registered taxpayers.

2. What happens if return is not filed?
Penalty, interest, and GSTIN suspension.

3. What is PMT-09?
Form to correct wrong tax payment.

4. Can ITC be adjusted using PMT-09?
No.

5. What is GSTR-3B?
Summary return.

6. What is GSTR-1?
Sales return.

7. Can GST return be revised?
No, correction in next return.

8. What is ITC?
Input Tax Credit.

9. Who should file GST returns?
All registered taxpayers.

10. What is QRMP scheme?
Quarterly filing scheme.

Conclusion

GST return filing is a critical compliance requirement that must be handled carefully. With expert accountant support and proper use of tools like PMT-09, businesses can ensure accurate filing, avoid penalties, and maintain smooth operations.

For expert guidance on this topic, contact your tax professional today.