• GST Filing Due
    Published : 24 Jun 2026

    GST Filing Due Dates FY 2026–27: Complete Guide for Businesses in India

    Staying updated with GST filing due dates FY 2026-27 is essential for every registered business in India. Missing return deadlines can lead to late fees, interest charges, blocked input tax credit, and compliance issues. Whether you are a regular taxpayer, composition dealer, e-commerce operator, or Input Service Distributor, understanding the GST return calendar helps maintain smooth business operations.

    This guide covers all important GST return due dates for Financial Year 2026-27, including GSTR-1, GSTR-3B, GSTR-4, GSTR-9, GSTR-9C, GSTR-5, GSTR-6, GSTR-7, and GSTR-8.

    Why Knowing GST Filing Due Dates is Important

    GST compliance is an ongoing responsibility for registered taxpayers. Timely filing of GST returns offers several benefits:

    • Avoidance of late fees and penalties.
    • Prevention of interest liability on unpaid taxes.
    • Continuous availability of Input Tax Credit (ITC).
    • Improved business credibility.
    • Reduced chances of receiving notices from tax authorities.
    • Smooth reconciliation during annual return filing.

    Businesses that maintain a proper compliance calendar can significantly reduce the risk of non-compliance.

    GST Filing Due Dates FY 2026-27 for Regular Taxpayers

    GSTR-1 Due Date

    GSTR-1 contains details of outward supplies made during a tax period.

    • Monthly Filers: 11th of the succeeding month.
    • Quarterly Filers under QRMP Scheme: 13th of the month following the quarter.

    Examples:

    • April 2026 – 11 May 2026
    • May 2026 – 11 June 2026
    • June 2026 – 11 July 2026

    GSTR-3B Due Date

    GSTR-3B is a summary return containing tax liability and ITC details.

    Monthly Taxpayers

    • Due Date: 20th of the following month.

    QRMP Taxpayers

    • Category I States – 22nd of the month following the quarter.
    • Category II States – 24th of the month following the quarter.

    Businesses should verify their applicable due dates based on their state category.

    GST Due Dates for Composition Scheme Taxpayers

    GSTR-4

    Composition taxpayers are required to file GSTR-4 annually.

    • Due Date: 30 April following the end of the financial year.

    For FY 2026-27, the expected due date would be:

    30 April 2027

    CMP-08

    CMP-08 is a quarterly statement-cum-challan used for payment of taxes by composition dealers.

    Due dates are:

    • 18 July 2026
    • 18 October 2026
    • 18 January 2027
    • 18 April 2027

    GST Filing Due Dates for Other Categories of Taxpayers

    GSTR-5

    Non-resident taxable persons are required to file GSTR-5.

    • Due Date: 13th of the succeeding month.

    GSTR-5A

    Online Information Database Access and Retrieval (OIDAR) service providers must file GSTR-5A.

    • Due Date: 20th of the succeeding month.

    GSTR-6

    Input Service Distributors need to submit GSTR-6.

    • Due Date: 13th of the succeeding month.

    GSTR-7

    Tax Deducted at Source return.

    • Due Date: 10th of the succeeding month.

    GSTR-8

    E-commerce operators collecting TCS are required to file GSTR-8.

    • Due Date: 10th of the succeeding month.

    Annual GST Return Due Dates for FY 2026-27

    GSTR-9

    Annual return for regular taxpayers.

    • Expected Due Date: 31 December 2027.

    GSTR-9C

    Reconciliation statement and certification for eligible taxpayers.

    • Expected Due Date: 31 December 2027.

    Businesses should regularly monitor notifications from the GST department, as due dates may be extended through official announcements.

    Late Fees and Consequences of Missing GST Due Dates

    Failure to file GST returns within the prescribed timeline can result in several consequences.

    • Late fees under GST provisions.
    • Interest on outstanding tax liabilities.
    • Restriction in claiming Input Tax Credit.
    • Suspension of GST registration in severe cases.
    • Increased scrutiny from tax authorities.
    • Difficulty in vendor and customer reconciliations.

    Businesses are advised to maintain a compliance tracker and reconcile sales, purchases, and ITC regularly to avoid last-minute filing challenges.

    How Professional GST Compliance Services Can Help

    Managing GST compliance becomes more challenging as businesses grow. Professional GST consultants can assist with return preparation, reconciliation, annual filings, notices management, and advisory services.

    Outsourcing GST compliance enables businesses to focus on operations while ensuring timely filing and adherence to changing tax regulations.

    Whether you are a startup, MSME, e-commerce seller, or large enterprise, staying informed about GST filing due dates FY 2026-27 is crucial for maintaining seamless tax compliance and avoiding unnecessary penalties.

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What is the due date for filing GSTR-1 in FY 2026-27?

Monthly GSTR-1 filers must file by the 11th of the succeeding month, while quarterly QRMP taxpayers must file by the 13th after the quarter ends.

When is GSTR-3B due for monthly taxpayers?

Monthly taxpayers are generally required to file GSTR-3B by the 20th of the following month.

When should composition taxpayers file CMP-08?

Composition taxpayers are required to file CMP-08 on a quarterly basis by the 18th day of the month following the end of the quarter.

What are the penalties for missing GST return due date

Late filing may attract late fees, interest on unpaid tax liabilities, restrictions on claiming Input Tax Credit (ITC), and possible compliance notices from tax authorities.

Is the due date for GSTR-9 for FY 2026-27 fixed?

The annual return in Form GSTR-9 for FY 2026-27 is expected to be due by 31 December 2027, unless the government announces an extension through an official notification.