GSTR-3B: Meaning, Due Dates, Format, Late Fees, and Filing Guide

Here is a handy guide to help you understand the GSTR 3B form, including the steps to file it online.
CHECK LOAN OFFER
Business Loan
CHECK LOAN OFFER
2 min read
July 23, 2026

GSTR-3B is an important GST return form that all registered taxpayers must file every month or quarterly if they are under the QRMP scheme. It gives a summary of sales, input tax credit (ITC), and tax liabilities. Even if there are no transactions during a period, businesses still need to file this return. This guide explains the filing process, deadlines, late fees, and how it compares to other forms like GSTR-1 and GSTR-2A.

GSTR 3B - latest updates

  • 21st April 2026: An Excel-based utility called the Invoice Management System (IMS) Offline Tool manages the heavy work of invoice reconciliation without needing you to remain logged into the GST portal.
  • 21st April 2026: The deadline to file form GSTR-3B for March 2026 has been extended from 20th April to 21st April 2026 under Central Tax notification no. 01/2026
  • 16th April 2026: A 'RE-COMPUTE INTEREST' button is now available within Table 5.1 on the GST portal. Taxpayers noticing a mismatch in their auto-calculated interest should use this option to trigger a fresh calculation based on updated system parameters.​

What is GSTR 3B?

Form GSTR-3B is a simplified summary return that enables taxpayers to report their GST liabilities for a specific tax period and settle them accordingly. Regular taxpayers are required to file GSTR-3B for each tax period, ensuring compliance with GST regulations.

  • A separate GSTR-3B needs to be filed for each GSTIN
  • The GST liability must be paid before or on the due date of filing GSTR-3B
  • Once filed, GSTR-3B cannot be revised
  • Even if there is no tax liability, GSTR-3B must still be filed

If you're looking to better manage monthly GST compliance, especially during peak periods, it might be helpful to check your business loan eligibility and access flexible financing options to support cash flow.

How does GSTR 3B work?

GSTR-3B functions as a self-declared summary return, allowing businesses to report key GST-related details for a specific tax period. The process involves consolidating data on sales, input tax credit (ITC) claims, and tax liabilities, followed by submitting the return through the GST portal.

Example of GSTR 3B

Consider a hypothetical scenario involving a small business, Sharma Electronics, engaged in the sale of electronic gadgets in India. For the month of March 2024, Sharma Electronics is required to file its GSTR-3B return. Below is a simplified breakdown of their filing:

1. Sales Details

  • Total sales during March: Rs. 50,00,000
  • Taxable sales: Rs. 45,00,000
  • Tax collected (GST): Rs. 5,00,000

2. Input Tax Credit (ITC)

  • Purchase of raw materials: Rs. 20,00,000
  • Input tax credit available: Rs. 3,00,000

3. Tax Liability

  • Tax payable on sales: Rs. 5,00,000
  • Less: Input tax credit: Rs. 3,00,000
  • Net tax liability: Rs. 2,00,000

4. Payment

  • Sharma Electronics pays the net tax liability of Rs. 2,00,000 through the GST portal before the due date.

This example illustrates how Sharma Electronics would file its GSTR-3B return for March 2024, covering sales, input tax credits, tax liability, and payment obligations under the Indian GST framework.

Who needs to file GSTR 3B?

All registered taxpayers under the GST system must file GSTR-3B every tax period, even if there are no transactions (NIL return) or very little business activity. However, the following types of taxpayers are exempt from filing GSTR-3B:

  • Input Service Distributors (ISD)
  • Composition Dealers (who file GSTR-4 instead)
  • Suppliers of Online Information and Database Access or Retrieval (OIDAR) services
  • Non-Resident Taxable Persons

What are the features of GSTR 3B?

These are the key features of GSTR-3B:

  • Monthly filing requirement: All registered taxpayers must file GSTR-3B every month, even if there are no transactions
  • Simplified return format: The form is designed to be user-friendly, making it easier for businesses to comply
  • No revisions allowed: Once submitted, GSTR-3B cannot be changed, so it is important to ensure accuracy
  • Mandatory NIL filing: Businesses with no tax liability for a given period must still file the return
  • Separate filing for each GSTIN: If a business has multiple GST registrations (GSTINs), a separate GSTR-3B must be filed for each GSTIN

What are the benefits of GSTR 3B?

Here are some benefits of filing GSTR-3B:

  • Compliance adherence: Filing GSTR-3B within the designated timeframe helps businesses stay compliant with GST regulations, avoiding penalties and potential legal issues.
  • Tax transparency: GSTR-3B provides a clear overview of a business's tax liabilities, which assists in better tax management and strategic planning.
  • Simplified reporting: The simplified format of GSTR-3B reduces the complexity involved in GST return filing, leading to greater operational efficiency.
  • Timely tax payments: Filing GSTR-3B on time ensures that GST dues are paid promptly, helping to avoid interest charges and late fees.
  • Optimisation of input tax credit: Accurate reporting in GSTR-3B allows businesses to maximise their Input Tax Credit claims, thereby improving their financial health.

Those looking to manage working capital requirements during GST filing can always apply for business loan.

GSTR 3B format

GSTR-3B is divided into the following sections:

Section 3.1: Outward and Inward Supplies (Reverse Charge) Report total taxable value and tax (IGST, CGST, SGST/UTGST, Cess) for:

  • Zero-rated supplies (exports, SEZ supplies)
  • Regular taxable supplies
  • Nil-rated and exempt supplies
  • Inward supplies liable for reverse charge
  • Non-GST supplies (e.g., petrol, alcohol)

Section 3.1.1: Supplies under Section 9(5) (e-commerce) Supplies notified under Section 9(5) of the CGST Act, 2017 (relevant for e-commerce operators).

Section 3.2: Inter-State Supplies to Specific Buyers Details of inter-state supplies made to unregistered persons, Composition taxpayers, and UIN holders — include place of supply, taxable value, and IGST amount.

Section 4: Eligible Input Tax Credit (ITC)

  • (A) ITC available: from imports of goods/services, reverse charge, ISD, and all other ITC.
  • (B) ITC reversed: per CGST Rules 42 and 43.
  • (C) Net ITC available: (A) minus (B).
  • (D) Ineligible ITC: blocked credits under Section 17(5).

Section 5: Exempt, Nil-Rated, and Non-GST Inward Supplies

Section 5.1: Interest and Late Fee (if applicable)

Section 6.1: Payment of Tax Declare the total tax payable, amount paid through ITC, TDS/TCS credits, and amount paid in cash.

Filling the GSTR 3B Excel format

Here are the details that you will have to fill in the GSTR 3B excel format:

  • You must fill in details of outward and inward supplies liable for reverse charges and include all non-GST and exempted outward supplies.
  • You will also have to enter details of the total taxable value, IGST, CGST, SGST, and cess for all your supplies.
  • Mention details related to inter-state supplies made to unregistered persons, composition dealers, and UIN holders. You will also have to mention the place of supply, total taxable value, and IGST amount.
  • Specify the total amount of input tax credit (ITC) available, as well as any ITC that has been reversed per CGST/SGST rules 42 and 43. Moreover, specify if any ITC is ineligible as per section 17(5).

Apart from all these details, you will also have to report late fees and interest due if you delay the GST return filing. To summarise, you have to add all your sales and purchase details for GSTR 3B filing. Fill in the other necessary details, and review it to upload the GSTR 3B form PDF on the GST website. Then, pay your interest or penalties to complete filing GST returns.

Additional Read: How to check your GST registration status?

How to file GSTR-3B online: Step-by-step guide

The GSTR 3B filing process can be completed online through the GST portal in seven simple steps. If you are wondering how to file GSTR 3B online step by step, follow the process below to accurately report your tax liability, claim eligible input tax credit (ITC), and submit your monthly GST return.

  • Log in to the GST portal: Sign in using your GSTIN credentials and select the relevant financial year and return period.
  • Open the GSTR-3B form: Choose the GSTR-3B return from the Returns Dashboard.
  • Complete Section 3.1: Enter details of taxable outward supplies, zero-rated supplies, exempt supplies, and reverse charge transactions.
  • Fill Section 4: Report your eligible input tax credit (ITC) after verifying purchase records.
  • Review Section 6.1: Check the tax payable, offset the liability using your electronic credit and cash ledgers, and confirm the balance.
  • Preview the return: Verify all details carefully before submission to avoid filing errors.
  • Submit and file: Complete the filing using an Electronic Verification Code (EVC) or Digital Signature Certificate (DSC) and download the acknowledgement for your records.

Example

Ramesh, a 38-year-old electronics retailer in Pune, files GSTR-3B for his business (GSTIN: 27XXXXX) by the 20th of each month. For April 2026, his total taxable sales were Rs. 12 lakh, ITC available was Rs. 1.8 lakh, and his net tax payable was Rs. 0.36 lakh. He completed the filing in under 15 minutes using the GST portal. 

If your business requires additional working capital to manage GST payments or day-to-day operations, you can also explore a Bajaj Finance Business Loan, subject to eligibility.

How to view GSTR-3B filing status?

To check the status of your GSTR-3B filing on the GST portal, follow these steps:

  • Log in to the GST portal using your credentials
  • Go to the Dashboard
  • Click on "Returns Dashboard" from the options available
  • Select the relevant Financial Year and Return Filing Period
  • Click the "Search" button
  • The list of GST returns for the selected period will appear, showing the filing status next to each return

How to download GSTR 3B filed return from GST portal

Follow these steps to download your GSTR-3B from the GST portal.

  • Open your web browser and go to the official GST portal.
  • Log in to the portal using your registered GST identification number and password.
  • After logging in, look for the 'Services' tab on the main navigation menu.
  • Hover over or click on the 'Services' tab and a drop down menu would appear. Here, choose 'Returns'.
  • From the options that appear next, select 'Returns Dashboard'.
  • You will be directed to a new page to select the financial year and the return period for which you want to download the GSTR-3B form. Use the drop down menus to select as required.
  • After selecting the appropriate financial year and return period, click on the 'Search' button.
  • On the next screen, you will see the GSTR-3B tile. Click on the 'DOWNLOAD' button visible on this tile.
  • If you have already filed your GSTR-3B, you can download it directly by clicking on the 'Download filed GSTR-3B' option.

Late fee and penalty for GSTR-3B

A late fee is charged if GSTR-3B is filed after the due date. The fee is as follows:

  • Rs. 50 per day of delay
  • Rs. 20 per day of delay for taxpayers with no tax liability for the month
  • If the GST dues are not paid on time, interest at 18% per annum is charged on the outstanding tax amount. You can use a GST calculator to help estimate your liabilities before making the GST payment

GSTR-3B vs GSTR-2A and GSTR-2B: Comparison

  • GSTR-3B: Self-declared summary return filed monthly, reflecting outward and inward supplies, tax liability, and ITC details.
  • GSTR-2A: Auto-populated return showing purchases per suppliers' GSTR-1, providing real-time ITC details.
  • GSTR-2B: Static ITC statement generated monthly, independent of suppliers' actions, aiding in reconciling ITC claimed in GSTR-3B with available credits.
  • Reconciliation ensures accurate ITC claims, compliance, and penalty avoidance.

Reconciling these returns can be crucial for accurate tax payments. If liquidity is a concern during this process, consider checking your pre-approved business loan offer for fast access to credit.

GSTR-3B vs GSTR-1: Comparison

  • GSTR-3B is a monthly summary return that must be filed by the 20th of the following month, or by the 22nd or 24th in case of quarterly filers. It includes a consolidated report of outward supplies, input tax credit claimed, purchases liable to reverse charge, and the total GST payable. It also facilitates the actual payment of taxes for the month.
  • On the other hand, GSTR-1 is a detailed return of outward supplies, capturing invoice-wise data for all taxable sales made during the period. It can be filed monthly or quarterly, depending on the taxpayer’s turnover.
  • Reconciliation of GSTR-1 with GSTR-3B ensures accurate tax payment, penalty avoidance, and facilitates precise ITC claims based on GSTR-2A and GSTR-2B.

Additional Read: What is the E-Way bill?

Due dates for GSTR-3B filing

To stay compliant under GST, it's important to understand the applicable GSTR-3B due dates and consequences of late filing:

  • From January 2020, GSTR-3B due dates have been staggered based on the type of filer.
  • Monthly filers must submit GSTR-3B by the 20th of the following month.
  • QRMP scheme filers (from 1st January 2021) must file GSTR-3B by the 22nd or 24th of the month following each quarter, depending on their state or union territory.
  • Taxpayers must pay GST and file GSTR-3B within the due date to remain compliant.
  • Late filing attracts a late fee and interest at 18 percent per annum.
  • If tax is paid on time but GSTR-3B is filed late, both interest and late fee will still apply.
  • Taxpayers filing GSTR-1 quarterly must continue filing GSTR-3B monthly, even if they are enrolled under the QRMP scheme.

Common errors in GSTR-3B filing and how to avoid them

The most common errors in GSTR-3B filing include incorrect input tax credit (ITC) claims, wrong tax reporting, and missed statutory disclosures. Understanding these common errors in GSTR-3B filing and following the correct GSTR 3B filing process can help businesses avoid notices, interest, and penalties.

Common errorWhy it happensHow to avoid it
Claiming ITC not reflected in GSTR-2BThe supplier has not filed or correctly reported details in GSTR-1Claim ITC in Section 4 only after reconciling eligible credits with GSTR-2B before filing
Reporting incorrect IGST and CGST/SGST splitInter-state and intra-state transactions are classified incorrectlyVerify the place of supply for every transaction before reporting the tax split
Missing reverse charge (RCM) entriesReverse charge transactions, such as certain legal services or GTA services, are overlookedReview Table 3.1(d) and verify all vendor invoices for reverse charge applicability before filing
Not filing a NIL GSTR-3BBusinesses assume no return is required when there are no transactionsSet filing reminders and submit a NIL return, as GSTR-3B filing is mandatory even without business activity
Incorrect reporting of exempt suppliesConfusion between nil-rated, exempt, and non-GST supplies or overlooking blocked credits under Section 17(5)Review the definitions in Section 5 and reconcile exempt supplies and ineligible ITC before submitting the return

Carefully reviewing your return before submission and reconciling your records with GST documents can help ensure accurate GSTR-3B filing and minimise compliance issues.

Conclusion

GSTR-3B is an essential GST return that enables businesses to stay compliant with India's tax regulations. Its simplified structure allows taxpayers to declare their outward supplies, claim input tax credit, and settle tax liabilities with ease. Timely and accurate filing of this return ensures that businesses avoid penalties, manage their tax liabilities effectively, and maintain smooth cash flow. For businesses looking to bridge working capital gaps during tax payments, you can consider applying for a business loan with quick approvals and minimal documentation.

Bajaj Finance app for all your financial needs and goals

Trusted by 50 million+ customers in India, Bajaj Finance App is a one-stop solution for all your financial needs and goals.

You can use the Bajaj Finance App to:

  • Apply for loans online, such as Instant Personal Loan, Home Loan, Business Loan, Gold Loan, and more.
  • Invest in fixed deposits and mutual funds on the app.
  • Choose from multiple insurance for your health, motor and even pocket insurance, from various insurance providers.
  • Pay and manage your bills and recharges using the BBPS platform. Use Bajaj Pay and Bajaj Wallet for quick and simple money transfers and transactions.
  • Apply for Insta EMI Card and get a pre-qualified limit on the app. Explore over 1 million products on the app that can be purchased from a partner store on Easy EMIs.
  • Shop from over 100+ brand partners that offer a diverse range of products and services.
  • Use specialised tools like EMI calculators, SIP Calculators
  • Check your credit score, download loan statements and even get quick customer support—all on the app.

Download the Bajaj Finance App today and experience the convenience of managing your finances on one app.

Do more with the Bajaj Finance App!

UPI, Wallet, Loans, Investments, Cards, Shopping and more

GET THE APP

Disclaimer

1. Bajaj Finance Limited (“BFL”) is a Non-Banking Finance Company (NBFC) and Prepaid Payment Instrument Issuer offering financial services viz., loans, deposits, Bajaj Pay Wallet, Bajaj Pay UPI, bill payments and third-party wealth management products. The details mentioned in the respective product/ service document shall prevail in case of any inconsistency with respect to the information referring to BFL products and services on this page.

2. All other information, such as, the images, facts, statistics etc. (“information”) that are in addition to the details mentioned in the BFL’s product/ service document and which are being displayed on this page only depicts the summary of the information sourced from the public domain. The said information is neither owned by BFL nor it is to the exclusive knowledge of BFL. There may be inadvertent inaccuracies or typographical errors or delays in updating the said information. Hence, users are advised to independently exercise diligence by verifying complete information, including by consulting experts, if any. Users shall be the sole owner of the decision taken, if any, about suitability of the same.
For customer support, call Personal Loan IVR: 7757 000 000

Frequently asked questions

I have no sales or purchases in a month. Should I still file GSTR-3B?

Yes, you should still file GSTR-3B even if you have no sales or purchases in a month. Filing of GSTR-3B is mandatory for all normal and casual taxpayers, regardless of their business activity.

Should I provide invoice-wise details on the return?

No, you do not need to provide invoice-wise details on GSTR-3B. It is a simplified summary return that only requires you to declare the summary figures of sales, ITC claimed, and net tax payable.

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

GSTR-1 is a monthly or quarterly return that captures the details of outward supplies made by a taxpayer. GSTR-3B is a monthly summary return that captures the summary of inward and outward supplies, tax liability, and tax payment.

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

GSTR-3 is a monthly return that is supposed to be generated automatically by the GST portal based on the information furnished in GSTR-1 and GSTR-2. However, this return has not been implemented yet. GSTR-3B is a self-declared summary return that is filed by the taxpayers until GSTR-3 is operationalised.

Where can I file Form GSTR-3B?

Form GSTR-3B is filed by registered taxpayers in India who are required to file monthly returns as per the Goods and Services Tax (GST) regime. The form can be filed online, either through the GST portal or through third-party applications or software that are approved by the government. The form can be filed by providing the relevant details and submitting it online along with the necessary supporting documents.

How can I file “Nil” Form GSTR-3B?

To file a "Nil" Form GSTR-3B, taxpayers can proceed similarly as with a regular GST return. Simply log in to the GST portal and choose the “Nil return” option. Enter the necessary details such as GSTIN, registered name, and tax period. After ensuring all details are correct and verifying the return, the "Nil" Form GSTR-3B can be successfully filed. It is important to note that even if there is no business activity, a return must be filed every month, either as a regular return or as a “Nil” return.

Is GSTR 3B for sale or purchase?

GSTR 3B is a simple tax return form meant for both sales and purchases. As a taxpayer, you fill in details of sales and purchases every month using this form to maintain a record of monthly transactions.

Is GSTR 3B a monthly return?

Yes, GSTR 3B is a monthly return. All taxpayers registered under the GST regime have to file form GSTR 3B every month, summarising their sales and purchases, whether significant or nil.

What is the minimum turnover for GSTR 3B?

The minimum turnover for filing GSTR 3B is Rs. 5 crore.

Can I preview GSTR-3B before submission?

Yes, you can preview your GSTR-3B before submitting it. The preview option allows you to review all the details entered to ensure accuracy. This step is crucial because once the GSTR-3B is filed, it cannot be revised. Double-check all entries for errors or omissions before final submission to avoid any mistakes.

Can I revise/reset Form GSTR-3B?

No, once GSTR-3B is filed, it cannot be revised or reset. It's a one-time filing, meaning any errors cannot be corrected after submission. Therefore, it's essential to ensure that all information is accurate before filing. Double-check your entries and data to prevent mistakes, as revisions are not allowed in GSTR-3B.

What does GSTR-3B include?

GSTR-3B is a monthly self-declared summary return that includes details of outward and inward supplies, ITC (Input Tax Credit) claimed, tax liabilities, and the taxes paid. It summarises the total values of sales and purchases, along with applicable taxes, making it essential for accurate tax reporting and compliance under the GST regime.

What is the maximum penalty for GSTR-3B?

The maximum penalty for late filing of GSTR-3B is Rs. 10,000. This includes a late fee of Rs. 50 per day for registered taxpayers and Rs. 20 per day for small taxpayers if there is no tax due. If a taxpayer fails to file the return on time, they can incur significant costs, as the penalties can accumulate over time. It is essential for businesses to be proactive in their filing to avoid these penalties and maintain compliance with GST regulations.

Will there be any invoice matching in GSTR-3B?

No, there is no invoice matching process in GSTR-3B. This return serves as a self-declaration and summary of a taxpayer’s GST liabilities for a specific period. Taxpayers provide details about their sales, input tax credit (ITC), and tax payments without the need for invoice-level data. However, it is crucial to maintain accurate records and documentation since GSTR-3B forms the basis for reconciling with GSTR-1 and GSTR-2 when invoice matching is done in those returns.

What is GSTR 3B meaning?

GSTR-3B is a self-declared summary return that summarises a taxpayer’s outward and inward supplies and the tax payable during a particular tax period. It helps ensure timely tax payment and compliance under the GST system.

Can we file GSTR-3B after the due date?

Yes, GSTR-3B can be filed after the due date; however, it will attract a late fee and interest. The penalty is Rs. 50 per day, or Rs. 20 per day for NIL returns, and interest is charged at 18% per annum on the outstanding tax amount.

What details are required in GSTR-3B Table 3.1?

Table 3.1 of GSTR-3B captures outward taxable supplies and inward supplies liable to reverse charge. Taxpayers must report taxable value and GST amount under categories such as outward taxable supplies, zero-rated supplies, nil-rated supplies, exempt supplies and non-GST supplies for the relevant tax period.

Which table in GSTR-3B shows reverse charge mechanism liability?

Reverse charge mechanism (RCM) liability in GSTR-3B is reported in Table 3.1(d). This section covers inward supplies liable to reverse charge, where the recipient is responsible for paying GST instead of the supplier, as per applicable GST provisions in India.

Is GSTR-3B mandatory for all GST-registered businesses?

Yes. GSTR-3B is mandatory for most GST-registered businesses, even if there are no transactions during the tax period. Businesses with no activity must file a NIL return, while taxpayers under the QRMP scheme file GSTR-3B quarterly. However, Input Service Distributors (ISD), Composition Dealers, OIDAR service providers, and Non-Resident Taxable Persons file other applicable GST returns instead.

What are the common errors in GSTR-3B return filing that I should avoid?

Common GSTR-3B filing errors include incorrect input tax credit (ITC) claims, wrong tax reporting, missing reverse charge entries, failure to file NIL returns, and incorrect reporting of exempt supplies. Reconciling your records with GSTR-2B and verifying transaction details before filing helps minimise errors and avoid GST notices.

How to reconcile your GSTR-3B with your GST ledger?

To reconcile GSTR-3B, compare your GSTR-1, GSTR-2B, GSTR-3B, and Electronic Credit Ledger before filing.

  • Match sales reported in GSTR-1 with GSTR-3B.
  • Verify eligible ITC using GSTR-2B and the Electronic Credit Ledger.
  • Ensure the GSTR-3B filing process matches your accounting records.
  • Correct discrepancies before filing or in a subsequent return, if permitted.

Regular reconciliation improves GST compliance. If you need additional working capital, you can explore a Bajaj Finance Business Loan, subject to eligibility.

Can I file GSTR-3B on behalf of my client?

Yes. GSTR-3B can be filed by an authorised signatory or a registered GST practitioner through the GST portal. The return must be verified using the client's GSTIN credentials with an OTP (EVC) or Digital Signature Certificate (DSC), as applicable.

Show More Show Less

Disclaimer

1. Bajaj Finance Limited (“BFL”) is a Non-Banking Finance Company (NBFC) and Prepaid Payment Instrument Issuer offering financial services viz., loans, deposits, Bajaj Pay Wallet, Bajaj Pay UPI, bill payments and third-party wealth management products. The details mentioned in the respective product/ service document shall prevail in case of any inconsistency with respect to the information referring to BFL products and services on this page.

2. All other information, such as, the images, facts, statistics etc. (“information”) that are in addition to the details mentioned in the BFL’s product/ service document and which are being displayed on this page only depicts the summary of the information sourced from the public domain. The said information is neither owned by BFL nor it is to the exclusive knowledge of BFL. There may be inadvertent inaccuracies or typographical errors or delays in updating the said information. Hence, users are advised to independently exercise diligence by verifying complete information, including by consulting experts, if any. Users shall be the sole owner of the decision taken, if any, about suitability of the same.
For customer support, call Personal Loan IVR: 7757 000 000