GSTR-3B Filing: A Line-by-Line Guide with ITC Reconciliation

GSTR-3B is a monthly self-declared summary GST return that taxpayers must file, detailing outward supplies, inward supplies subject to reverse charge, and Input Tax Credit (ITC) claimed. It's crucial for timely tax payment and compliance. Accurate filing, especially ITC reconciliation with GSTR-2B, prevents discrepancies, penalties, and ensures seamless credit flow for businesses in India.

What is GSTR-3B and who needs to file it?

GSTR-3B is a simplified summary return for Goods and Services Tax (GST) liabilities and ITC claims, mandatory for all regular taxpayers registered under GST. This includes normal taxpayers, casual taxable persons, and those opting for the composition scheme (who file GSTR-4 instead of GSTR-3B, but this article focuses on regular taxpayers). It's a temporary return introduced to ease the transition to GST and continues to be the primary return for tax payment. The return consolidates details of sales (outward supplies), purchases (inward supplies), and the Input Tax Credit (ITC) available. It does not require invoice-level details, unlike GSTR-1 and GSTR-2 (which is currently suspended).

What are the due dates for GSTR-3B filing?

The due dates for filing GSTR-3B vary based on the taxpayer's principal place of business and aggregate turnover, generally falling on the 20th, 22nd, or 24th of the succeeding month.

State/Union Territory (Principal Place of Business)	Aggregate Turnover in Preceding Financial Year	Due Date (of succeeding month)
Chhattisgarh, Madhya Pradesh, Gujarat, Maharashtra, Karnataka, Goa, Kerala, Tamil Nadu, Telangana, Andhra Pradesh, Daman & Diu and Dadra & Nagar Haveli, Puducherry, Andaman and Nicobar Islands, Lakshadweep	More than ₹5 Crores	20th
Chhattisgarh, Madhya Pradesh, Gujarat, Maharashtra, Karnataka, Goa, Kerala, Tamil Nadu, Telangana, Andhra Pradesh, Daman & Diu and Dadra & Nagar Haveli, Puducherry, Andaman and Nicobar Islands, Lakshadweep	Up to ₹5 Crores	24th
Himachal Pradesh, Punjab, Uttarakhand, Haryana, Rajasthan, Uttar Pradesh, Bihar, Sikkim, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, Meghalaya, Assam, West Bengal, Jharkhand, Odisha, Jammu and Kashmir, Ladakh, Delhi	More than ₹5 Crores	20th
Himachal Pradesh, Punjab, Uttarakhand, Haryana, Rajasthan, Uttar Pradesh, Bihar, Sikkim, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, Meghalaya, Assam, West Bengal, Jharkhand, Odisha, Jammu and Kashmir, Ladakh, Delhi	Up to ₹5 Crores	22nd

Note: The due dates can be subject to change by government notifications. Always refer to the latest notifications from the CBIC.

How do I report outward supplies and inward supplies liable to reverse charge in Table 3.1?

Table 3.1 of GSTR-3B requires you to report details of outward supplies and inward supplies liable to reverse charge, categorised by taxability and recipient type.

This table is divided into several sub-sections:

3.1(a) Outward taxable supplies (other than zero-rated, nil-rated and exempted supplies): Report the total taxable value and the corresponding IGST, CGST, SGST/UTGST, and Cess for all your regular taxable sales. This includes B2B, B2C, and e-commerce sales.
3.1(b) Outward taxable supplies (zero-rated): This covers exports of goods or services and supplies to SEZ units/developers without payment of tax (under LUT/Bond). Report the taxable value and IGST (if paid).
3.1(c) Outward taxable supplies (nil-rated and exempted): Report the value of supplies that are exempt from GST or have a nil rate of tax. No tax is to be paid here.
3.1(d) Inward supplies liable to reverse charge (other than 3.1(b)): This is crucial. Report the taxable value and the corresponding IGST, CGST, SGST/UTGST, and Cess on purchases where you, as the recipient, are liable to pay tax under the reverse charge mechanism (e.g., services from unregistered persons, GTA services, legal services). The tax paid here can generally be claimed as ITC in Table 4.
3.1(e) Non-GST outward supplies: Report the value of supplies that are outside the purview of GST (e.g., alcoholic liquor for human consumption, petrol, diesel). No tax is applicable.

Ensure that the total taxable value and tax amounts reported in Table 3.1(a), 3.1(b), and 3.1(c) align with the details furnished in your GSTR-1 for the same period.

How do I claim and reconcile Input Tax Credit (ITC) in Table 4?

Table 4 is where you declare your Input Tax Credit (ITC) claims, reversals, and ineligible ITC, requiring careful reconciliation with your GSTR-2B statement.

This table is structured as follows:

4(A) ITC Available (Full): This section captures the total eligible ITC available from various sources.
- 4(A)(1) Import of Goods: ITC on goods imported into India.
- 4(A)(2) Import of Services: ITC on services imported into India.
- 4(A)(3) Inward supplies liable to reverse charge (other than 4(A)(2)): ITC available on inward supplies where you paid tax under reverse charge (e.g., GTA services, legal services). This should correspond to the tax paid in Table 3.1(d).
- 4(A)(4) Inward supplies from ISD: ITC received from an Input Service Distributor.
- 4(A)(5) All other ITC: This is the most significant part. It includes ITC on all regular inward supplies from registered suppliers (B2B purchases) and should primarily be reconciled with your GSTR-2B statement.
4(B) ITC Reversed: This section requires you to report ITC that needs to be reversed as per GST rules.
- 4(B)(1) As per rules 38, 42 & 43 of CGST Rules and section 17(5): This includes reversals due to non-business use of inputs, common credits for taxable and exempt supplies, capital goods used for exempt supplies, and blocked credits under Section 17(5) (e.g., food and beverages, motor vehicles for personal use).
- 4(B)(2) Other reversals: Any other ITC reversals not covered above, such as those due to non-payment to suppliers within 180 days.
4(C) Net ITC Available (A-B): This is the net eligible ITC after deducting reversals from the total available ITC. This amount will be used to offset your output tax liability.
4(D) Other ITC information:
- 4(D)(1) ITC reclaimed which was reversed under Table 4(B)(2) in earlier tax period: If you reversed ITC in a previous period (e.g., due to non-payment to supplier) and later became eligible to reclaim it (e.g., by making the payment), you report it here.
- 4(D)(2) Ineligible ITC under section 17(5) and others: This is for reporting ITC that is permanently ineligible (blocked credit) and not claimed in 4(A) or reversed in 4(B)(1). This is for disclosure purposes only and does not impact your net ITC.

GSTR-2B Reconciliation: The most critical aspect of Table 4 is reconciling "All other ITC" (4A(5)) with your GSTR-2B statement. GSTR-2B is an auto-drafted ITC statement based on the GSTR-1s filed by your suppliers. You should ideally claim ITC only to the extent it appears in GSTR-2B. Any difference must be investigated. If ITC is missing in GSTR-2B, follow up with your supplier to ensure they file their GSTR-1 correctly. Claiming ITC not reflected in GSTR-2B can lead to notices and disallowance.

What are the provisions for interest under Section 50 and late fees?

Interest under Section 50 of the CGST Act, 2017, is levied on delayed payment of GST, while late fees are imposed for delayed filing of GSTR-3B.

Interest under Section 50:

Rate: Interest is charged at 18% per annum on the net tax liability (after adjusting available ITC) for the period of delay.
Applicability: It applies from the day following the due date of payment until the actual date of payment.
Calculation: The interest is calculated on the amount of tax that remains unpaid after the due date. For instance, if you have an output tax liability of ₹1,00,000 and ITC of ₹80,000, and you pay the net ₹20,000 after a delay, interest will be on ₹20,000.
Statutory Citation: "Every person liable to pay tax in accordance with the provisions of this Act or the rules made thereunder, but fails to pay the tax or any part thereof to the Government within the period prescribed, shall, for the period for which the tax or any part thereof remains unpaid, pay on his own an interest at such rate not exceeding eighteen per cent. as may be notified by the Government on the recommendations of the Council." (Sec. 50(1) of CGST Act, 2017)

Late Fees:

For Nil GSTR-3B: ₹20 per day (₹10 CGST + ₹10 SGST) for each day of delay, subject to a maximum of ₹500 (₹250 CGST + ₹250 SGST).
For other GSTR-3B filings (having tax liability): ₹50 per day (₹25 CGST + ₹25 SGST) for each day of delay, subject to a maximum of ₹5,000 (₹2,500 CGST + ₹2,500 SGST).
Applicability: Late fees are charged per return, per day of delay, from the day following the due date until the actual date of filing.
Statutory Citation: "Any registered person who fails to furnish the details of outward or inward supplies required under section 37 or returns required under section 39 or section 44 or section 45 or section 52 within the due date, shall pay a late fee of one hundred rupees for every day during which such failure continues subject to a maximum amount of five thousand rupees." (Sec. 47(1) of CGST Act, 2017). Note: This section is for CGST; a similar provision exists for SGST.

It is crucial to file GSTR-3B on time even if you cannot pay the tax, to avoid late fees. Interest will still apply to the delayed tax payment.

How SP & SC helps

Navigating the complexities of GSTR-3B filing, especially with intricate ITC reconciliation and ever-evolving regulations, can be daunting. Our expert team at SP & SC Legal and Taxation Services provides comprehensive GST return filing services, ensuring accurate, timely, and compliant submissions, helping you avoid penalties and optimise your tax position. Visit our GST Return Filing service page to learn more.

Frequently asked questions

What happens if I file GSTR-3B with errors?

If you file GSTR-3B with errors, you cannot revise it. However, you can rectify the errors in the subsequent month's GSTR-3B filing. For example, if you under-reported sales in July, you can declare the additional sales in August's GSTR-3B. Similarly, if you missed claiming eligible ITC in July, you can claim it in a subsequent month's GSTR-3B, subject to time limits.

Can I file GSTR-3B without filing GSTR-1?

No, you cannot file GSTR-3B without filing GSTR-1. The GST portal has a validation check that prevents GSTR-3B submission if GSTR-1 for the same tax period has not been filed. This ensures that outward supply details are first furnished in GSTR-1, which then feeds into the GSTR-2A/2B of your recipients.

What is the maximum time limit to claim Input Tax Credit?

You can claim Input Tax Credit (ITC) for an invoice up to the due date for filing the GSTR-3B for September of the following financial year, or the date of filing the annual return for the financial year to which the invoice pertains, whichever is earlier. For example, for an invoice dated January 2023 (FY 2022-23), the last date to claim ITC would be the due date of GSTR-3B for September 2023 (usually October 20th/22nd/24th, 2023) or the date of filing the annual return for FY 2022-23, whichever comes first.

Is it mandatory to reconcile GSTR-3B with GSTR-2B?

While not explicitly mandatory by law to claim ITC only as per GSTR-2B, Rule 36(4) of the CGST Rules, 2017, restricts provisional ITC claims to 5% of the eligible ITC reflected in GSTR-2B/2A. This effectively makes GSTR-2B reconciliation crucial. Claiming ITC beyond this limit without proper documentation and supplier compliance can lead to disallowance and penalties during audits. It is best practice to always reconcile and claim ITC as per GSTR-2B.

What is the difference between GSTR-3B and GSTR-1?

GSTR-1 is a statement of outward supplies (sales) that provides invoice-wise details of all sales made by a taxpayer. GSTR-3B, on the other hand, is a summary return where a taxpayer declares their consolidated outward supplies, inward supplies liable to reverse charge, and Input Tax Credit (ITC) claims, and pays the net tax liability. GSTR-1 details feed into GSTR-2A/2B of the recipients, while GSTR-3B is for tax payment and overall liability declaration.