What is GSTR 1?

All taxpayers who have registered under GST are required to file their GST returns as per GST Law. By filing these returns, taxpayers and the government get clarity on the amount of GST to be paid. To file these returns correctly and with minimal fuss, the taxpayer must have GST-compliant invoices for both sales and purchase transactions. GSTR 1 is a crucial form that must be completed in order to start the process of filing of these returns. This is because the information submitted in GSTR 1 serves as the foundation for auto-populating all other forms.

In this article, we will understand what is GSTR-1, including the sections under it, when it is due, who is liable to file it, and penalties for late filing. After reading this article, you should be a step closer to ensuring your business is GST-compliant.

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    What Does GSTR-1 Mean?

    GSTR-1 is a monthly or quarterly GST return that every registered business must file to report all outward supplies—that is, sales of goods or services. It includes invoice details for sales to both registered and unregistered buyers, exports, and credit/debit notes.

    Filing GSTR-1 is important because:

    • It helps the government track your tax liability.
    • It enables your customers to claim Input Tax Credit (ITC).
    • It ensures transparency and compliance under GST.
    • Even if there are no sales, a Nil GSTR-1 must be filed.

    Structure of GSTR-1 Form

    Section Description
    B2B (Business-to-Business) Invoice-wise sales to registered GST buyers within or outside the state
    B2C (Large Transactions) Interstate sales to unregistered buyers where invoice value is over ₹2.5 lakh
    B2C (Others) Sales to unregistered buyers within the state or small-value interstate sales
    Exports Details of zero-rated supplies made outside India (with or without payment of tax)
    Debit/Credit Notes Any corrections made to previously issued invoices, whether B2B or B2C
    Nil/Exempt/Non-GST Supplies Sales of items not attracting GST, like exempted goods or zero-rated supplies
    Amendments Corrections to data filed in earlier GSTR-1 returns
    HSN Summary HSN-code wise summary of goods or services supplied
    Document Summary Total count of all invoices, debit/credit notes, and delivery challans issued

    Sections in GSTR-1 Form

    Section No. Section Title What You Need to Report
    1 GSTIN Your 15-digit GST number
    2 Name Auto-filled from your GST profile
    3 B2B Invoices Sales to GST-registered buyers (invoice-wise)
    4 B2C Large Invoices Interstate sales above ₹2.5 lakh to unregistered buyers
    5 B2C Others Other sales to unregistered customers
    6 Exports Details of goods/services sold outside India (zero-rated)
    7 Credit/debit notes (Registered) Notes issued to adjust earlier invoices to registered customers
    8 Debit/credit note (Unregistered) Notes issued to adjust invoices for unregistered buyers
    9 Nil/Exempt/Non-GST Supplies Supplies that are nil-rated, exempted, or not covered under GST
    10 Amendments Corrections to details filed in previous GSTR-1 returns
    11 Advances Received/Adjusted Advance payments received for future sales or adjusted against invoices
    12 HSN-wise Summary Summary of goods/services sold with HSN codes
    13 Document Summary Count of all invoices, debit/credit notes, and challans issued

    When is GSTR-1 Due?

    The turnover of a business determines its GSTR-1 due date. GSTR-1 returns must be filed either monthly or quarterly, depending on the business’s turnover. Businesses can file GSTR-1 and GSTR-3B quarterly if their annual revenue is up to ₹5 crore and they have opted for the QRMP Scheme; otherwise, they must file monthly returns if their annual turnover exceeds ₹5 crore.

    GSTR-1 Due Dates

    Monthly Filers (Turnover above ₹5 crore or opted for monthly filing)

    Tax Period Due Date
    January 2025 11th February 2025
    February 2025 11th March 2025
    March 2025 11th April 2025
    April 2025 11th May 2025
    May 2025 11th June 2025
    June 2025 11th July 2025
    July 2025 11th August 2025
    August 2025 11th September 2025
    September 2025 11th October 2025
    October 2025 11th November 2025
    November 2025 11th December 2025
    December 2025 11th January 2026

    Quarterly Filers (QRMP Scheme – Turnover up to ₹5 crore)

    Quarter Due Date
    Jan – Mar 2025 13th April 2025
    Apr – Jun 2025 13th July 2025
    Jul – Sep 2025 13th October 2025
    Oct – Dec 2025 13th January 2026

    Note:

    • Monthly filers must submit GSTR-1 by the 11th of the following month.
    • QRMP (Quarterly Return Filing with Monthly Payment) filers must submit by the 13th of the month following the end of the quarter.

    Who is Liable to File GSTR-1?

    Each registered dealer must complete the GSTR 1 filing process. The same is required and unaffected by the transactions that occurred that month. If you are a registered dealer, you must complete the GSTR-1 filing process even if there are no sales or transactions (this is called filing Nil returns). However, the following people or companies are excluded from submitting GSTR 1:

    1. Input Service Distributor: Any commercial organisation that receives invoices for services used by its various branches is automatically considered an input service distributor (ISD) according to the GST regime.
    2. Composition Dealer: Beginning on April 1, 2019, companies with a maximum yearly turnover of 1.5 Crores may choose to participate in the gst composition scheme. These companies are exempt from submitting GSTR 1.
    3. A supplier of online information, database access, or retrieval service providers are exempt from the GSTR-1 filing requirement.
    4. Non-resident taxable person: You are also free from submitting GSTR 1 on behalf of your company if you come within the category of non-resident taxable people.
    5. This does not apply to taxpayers responsible for collecting tax at source (TCS) or deducting tax at source (TDS).

    Pre-Requisites for Filing GSTR-1

    You must have a 15-digit PAN-based GSTIN and be a GST-registered taxpayer.

    You must maintain detailed invoices with distinct serial numbers for your transactions, including intrastate and interstate transactions, business-to-business (B2B), and retail (B2C) sales. This also covers stock transfers between your company’s locations in other states and transactions involving exempt and non-GST products.

    To validate your return using an EVC (electronic verification code) or a digital signature certificate, you must either have an OTP from your registered phone (class 2 or higher). Using an Aadhar-based e-sign, you can also submit your GST returns.

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    How to File GSTR-1?

    On the GSTN platform, filing GSTR 1 is simple. Simply follow the instructions listed below to submit your GSTR-1 using the GSTN portal:

    1. Step 1: Log in to the GSTN portal using the User ID and password provided.
    2. Step 2: Choose “Services.”
    3. Step 3: Select “Returns.”
    4. Step 4: On the “Returns Dashboard,” choose the month and year you want to file the return.
    5. Step 5: Click on “GSTR-1” after the returns for the given time have been displayed.
    6. Step 6: After that, you may either upload or complete your returns online.
    7. Step 7: You have the option of adding or uploading invoices.
    8. Step 8: Make sure the form is filled out completely and accurately by rechecking it.
    9. Step 9: Select “Submit.”
    10. Step 10: Click “File GSTR-1” after verifying the information you supplied.
    11. Step 11: Electronically or digitally sign the form.
    12. Step 12: When a pop-up is displayed on your screen, click “Yes” to confirm that you want to file a GSTR-1. Watch for the generation of an ARN (Acknowledgement Reference Number).

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    How to Revise GSTR-1?

    Once GSTR-1 is filed, it cannot be revised directly. However, if you made errors or missed entries in your original GSTR-1, you can correct them in the next month’s GSTR-1 filing. To do this, include the missing invoices or make adjustments for errors in the “Amendments” section of the subsequent GSTR-1. This allows you to update the details of previous tax periods.

    Steps to Make Corrections in GSTR-1:

    • Identify the error in the previously filed GSTR-1 return.
    • Go to the upcoming GSTR-1 filing for the current period.
    • Use the “Amendment” sections in the form to update B2B invoices, B2C large invoices, export invoices, or debit/credit notes.
    • Enter the correct information along with original invoice details.
    • Preview and submit your return after making all necessary changes.

    Late Fees and Penalty

    You will be required to pay a late charge at the following rate if you cannot submit your GSTR-1 return by the deadline. A yearly interest rate of 18% will also be assessed on the amount of unpaid taxes:

    Type of Return Late Fee per Day Maximum Late Fee
    Regular Return ₹50 (₹25 CGST + ₹25 SGST) ₹10,000 (₹5,000 CGST + ₹5,000 SGST)
    Nil Return ₹20 (₹10 CGST + ₹10 SGST) ₹500 (₹250 CGST + ₹250 SGST)

    Note: Even if there are no transactions (Nil Return), timely filing is mandatory to avoid penalties.

    Conclusion

    After reading this article you may have undesrtood GSTR 1 meaning and In essence, information about outgoing supplies made during the month must be recorded in the GSTR-1 format as either invoice-specific, rate-specific, or state-specific information.

    Not filing GSTR-1 correctly and on time can harm the reputation of your business as well, as your Compliance Rating may suffer.

    As input tax credit depends on the supplier’s compliance, it will also affect one’s customers. Potential B2B buyers may refrain from doing business with you if you don’t file your GSTR-1 correctly, due to the problems they will face when not being able to claim ITC.

    Frequently Asked Questions

    • Should I file GSTR-1 even if there are no sales in a month?
      Yes, you must file GSTR-1 even with no sales. In such cases, you can file a ‘Nil’ return.
    • Can I upload an invoice only while filing the return?
      No, you can upload invoices anytime before filing GSTR-1 for the month.
    • Can I change a bill/invoice uploaded on the GST portal?
      No, once an invoice is uploaded, it cannot be changed. You can amend it in the next GSTR-1 filing.
    • Can I file GSTR-1 after the due date?
      Yes, but a late fee and penalties may apply for delayed filing.
    • Should I make a GST payment after filing GSTR-1?
      No, GSTR-1 is just for reporting sales. Payments are made when filing GSTR-3B.
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