GSTR-3B is the most critical monthly return under GST. It is the return where taxpayers declare their summary of outward supplies, claim Input Tax Credit, and make actual tax payments. Failure to file GSTR-3B on time leads to suspension of registration, late fees, interest, and ultimately cancellation of registration.
This comprehensive guide covers everything you need to know about GSTR-3B filing, including due dates, format, payment rules, late fee, and interest calculations.
What Is GSTR-3B?
GSTR-3B is a summary return that every registered taxpayer (other than composition taxpayers, ISDs, NRTPs, and TDS/TCS deductors) must file. It contains:
- Summary of outward supplies (sales)
- Summary of inward supplies (purchases) attracting reverse charge
- ITC claimed during the period
- Tax payable and tax paid
Due Dates for GSTR-3B
Monthly Fliers
Taxpayers must file GSTR-3B by the 20th of the following month.
Quarterly Fliers (QRMP Scheme)
Taxpayers under the QRMP scheme must file GSTR-3B by the 24th of the month following the quarter.
| Filer Type | Due Date |
|---|---|
| Monthly | 20th of following month |
| Quarterly (QRMP) | 24th of following month |
Critical Rule
GST liability must be paid before or on the due date of filing GSTR-3B. Tax cannot be paid after the due date.
GSTR-3B Format and Structure
GSTR-3B is divided into several parts:
- Part I: Basic details (GSTIN, legal name, trade name)
- Part II: Details of outward supplies (sales summary)
- Part III: Details of inward supplies (purchases under RCM)
- Part IV: ITC claimed
- Part V: Payment of tax
- Part VI: TDS/TCS credit received (if applicable)
Payment Rules for GSTR-3B
Payment Before Filing
Tax must be paid before filing GSTR-3B. The payment must be made through the electronic cash ledger or by utilising ITC from the electronic credit ledger.
Late Fee Payment
The late fee must be paid in cash and cannot be offset using the input tax credit (ITC) available in the electronic credit ledger.
ITC Cannot Pay Late Fee
ITC balance cannot be used to pay late fees. Late fees must be paid through the cash ledger only.
Late Fee for GSTR-3B
Regular Taxpayers
For each day that the return is filed late, ā¹50 per day (ā¹25 CGST + ā¹25 SGST) is charged.
Nil Returns
For nil returns, the late fee is ā¹20 per day (ā¹10 CGST + ā¹10 SGST).
Maximum Late Fee
The maximum late fee for GSTR-3B is ā¹10,000 per return (ā¹5,000 CGST + ā¹5,000 SGST).
Interest for Late Payment
Standard Interest Rate
Interest on delayed GST payment is charged at 18% per annum under Section 50 of the CGST Act.
Higher Interest Rate
If you have claimed excess ITC or reduced your output tax liability wrongly, a higher interest rate of 24% per annum applies.
Interest Calculation
Interest is calculated on the net cash tax liability (not on the ITC portion).
Step-by-Step GSTR-3B Filing Process
Step 1: Prepare Data
- Summarise all sales (outward supplies)
- Summarise all purchases (inward supplies)
- Calculate ITC eligible for claim
- Calculate tax payable
Step 2: Log in to GST Portal
- Visit www.gst.gov.in
- Navigate to Services > Returns > Returns Dashboard
Step 3: Select GSTR-3B
- Select the financial year and tax period
- Click on "Prepare Online"
Step 4: Fill Details
- Enter summary of outward supplies
- Enter summary of inward supplies (RCM)
- Enter ITC claimed
- Calculate tax payable
Step 5: Pay Tax
- Pay tax through cash ledger or utilise ITC
- Ensure payment is made before filing
Step 6: Submit
- File using DSC or EVC
Consequences of Not Filing GSTR-3B
Suspension of Registration
A taxpayer is suspended on the portal if they do not file six or more consecutive monthly returns / quarterly returns for two tax periods in Form GSTR-3B.
Cancellation of Registration
If the taxpayer does not respond to the show cause notice (REG-17) within 7 working days, the registration is cancelled.
Denial of ITC to Buyers
When a supplier fails to file GSTR-3B, buyers cannot claim ITC on purchases from that supplier.
Late Fee and Interest
Late fee of ā¹50 per day plus interest at 18% per annum on the unpaid tax amount.
Common GSTR-3B Errors to Avoid
1. Mismatch Between GSTR-1 and GSTR-3B
GSTR-1 and GSTR-3B must match. Discrepancies lead to notices and potential penalties.
2. Incorrect ITC Claim
Claiming ITC that is not eligible or claiming more than eligible leads to interest at 24% and penalties.
3. Late Payment
Paying tax after the due date attracts interest at 18% per annum.
4. Filing Without Payment
GSTR-3B cannot be filed without making the tax payment first.
5. Not Filing Nil Returns
Even if there is no business activity, a nil GSTR-3B must be filed. Failure to file leads to suspension and cancellation.
Need assistance with GSTR-3B filing? Our expert team ensures accurate and timely filing, helping you avoid late fees, interest, and penalties.
Contact Anuj Desai & Associates: š§ Email: office@anujdesaiassociates.com š Phone: 9619456656 š Website: https://anujdesaiassociates.com š LinkedIn: linkedin.com/in/ca-anuj-desai-122547230