Vriddhi Tax ConsultantsTax · GST · Accounts

Tax deadline calendar

The dates that matter this year, with one tap to add them to your own calendar.

Key dates — FY 2026-27

  1. Nov202026

    GSTR-3B for October

    · GST registered (monthly)

    Pay GST and file the summary return.

  2. Dec112026

    GSTR-1 for November

    · GST registered (monthly)

  3. Dec152026

    Advance tax – third instalment

    · Tax payable above ₹10,000

    75% of the year’s tax should be paid by this date.

  4. Dec312026

    Belated or revised ITR

    · Individuals

    Last date to file a belated or revised return for AY 2026-27.

  5. Jan312027

    TDS return for Q3 (Oct–Dec)

    · Deductors

    Forms 24Q and 26Q.

  6. Mar152027

    Advance tax – final instalment

    · Tax payable above ₹10,000

    100% of the year’s tax. Also the single date for presumptive taxation.

  7. Mar312027

    Tax-saving investments

    · Old regime taxpayers

    Last day for 80C, 80D and NPS investments to count for FY 2026-27.

  8. Jun152027

    Advance tax – first instalment

    · Tax payable above ₹10,000

  9. Jul312027

    Income tax return due

    · Individuals (no audit)

    File your return for FY 2026-27.

Dates can move for weekends, holidays and official extensions. Please confirm the dates that apply to you with us.