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Every GST, TDS and ITR due date for your filer type
Saved on this device only. Tick every registration you handle.
October 2026
4
filings due this month
7
Wed
Deposit tax deducted or collected last month · Sep 2026
Applies to: Income-tax TDS / TCS deductors
11
Sun
file a day early
Outward supplies return (monthly) · Sep 2026
Applies to: Monthly GST filers
20
Tue
Summary return and tax payment (monthly) · Sep 2026
Applies to: Monthly GST filers
31
Sat
Quarterly TDS / TCS statements · Jul–Sep 2026 (Q2 FY 2026-27)
Applies to: Income-tax TDS / TCS deductors. Income-tax Act 2025 forms (formerly 24Q, 26Q, 27Q, 27EQ).
Dates follow CBIC and CBDT rules as of 8 Oct 2026, including the tax-audit extension in CBDT Circular 07/2026. Extensions are notified ad hoc, so confirm on gst.gov.in and incometaxindia.gov.in before you file. Dates marked Reported come from press coverage, not a notification. Due dates do not move for Sundays; the list flags them so you can file a working day early. This is a planning aid, not tax advice.
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Browse Finance TemplatesA compliance calendar only helps if it shows your dates and not everyone else’s. This one starts from what you file: monthly or QRMP GST returns, composition, ISD, GST TDS, e-commerce TCS, income-tax TDS, tax audit and advance tax. It builds the due dates for October 2026 to March 2027 from CBIC and CBDT rules, including the extended 21 October tax audit date. Every date shows days left in IST and can go straight into your calendar app.
The tool keeps one rule per return type instead of a hand-typed table. Monthly filers get GSTR-1 on the 11th and GSTR-3B on the 20th for the previous month. QRMP filers get the optional IFF on the 13th and the PMT-06 challan on the 25th after the first two months of a quarter. After the third month they get the quarterly GSTR-1 on the 13th and GSTR-3B on the 22nd or 24th, depending on the state of the GSTIN. Composition dealers get CMP-08 on the 18th after each quarter. GSTR-7 and GSTR-8 fall on the 10th, GSTR-6 and GSTR-5 on the 13th, GSTR-5A on the 20th and GSTR-11 on the 28th.
Income-tax rules work the same way: TDS and TCS deposits on the 7th (30 April for March), quarterly statements on 31 October, 31 January, 31 May and 31 July, Form 141 thirty days after month-end, and advance tax on 15 December and 15 March. Dates CBDT notified for this season, such as the 21 October audit report and the 21 November audit-case ITR, are stored as overrides and marked Extended. The belated ITR date is marked Reported because it comes from coverage, not a circular.
The clock is read once in your browser and converted to IST, so the days-left badges match Indian deadlines wherever you are. The .ics export uses stable event IDs, so re-importing updates events instead of duplicating them.
A freelancer on QRMP who only needs a handful of GST dates each quarter and wants them in Google Calendar instead of a spreadsheet tab.
A small trader filing monthly GSTR-1 and GSTR-3B who also deducts TDS on rent and contractor payments and needs the 7th and the quarterly statements in one view.
An accountant with clients in Maharashtra and Delhi checking which of them file the QRMP GSTR-3B on the 22nd and which on the 24th.
An audited business confirming the extended 21 October audit report and 21 November ITR dates before planning the October close.
Scope note: Dates follow CBIC and CBDT rules as of 8 October 2026 and cover October 2026 to March 2027. Extensions are notified ad hoc, so verify on gst.gov.in and incometaxindia.gov.in before filing. Late fees and interest are not computed here, state holidays are ignored, and the belated ITR date is reported rather than notified. This is a planning aid, not tax advice.
Disclaimer: This calculator is for informational and educational purposes only and does not constitute financial, tax, or legal advice. Results are estimates based on publicly available tax slabs and formulas. Consult a qualified Chartered Accountant, tax professional, or financial advisor for guidance specific to your situation. Built and maintained by the WOWHOW Team with 14+ years of software development experience.
Tick every return you file, or start from a preset such as Freelancer on QRMP or Business filing monthly.
On QRMP, pick the state of your GSTIN so the quarterly GSTR-3B lands on the 22nd or the 24th.
Choose a month from October 2026 to March 2027 to see each due date with its period and days left.
Check the Next 7 days strip for what is coming up, even across a month boundary.
Download the .ics file, copy the list as text, or share a card with your filing count.
About the GST and Income Tax Compliance Calendar 2026-27
For September 2026 returns: GSTR-7 and GSTR-8 on 10 October, monthly GSTR-1 on 11 October, QRMP GSTR-1 for July–September plus GSTR-6 and GSTR-5 on 13 October, CMP-08 on 18 October, monthly GSTR-3B and GSTR-5A on 20 October, QRMP GSTR-3B on 22 or 24 October depending on your state, and GSTR-11 on 28 October. There is no PMT-06 in October because September is the third month of the quarter.
Yes. CBDT Circular 07/2026, dated 28 September 2026, moved the tax audit report from 30 September to 21 October 2026 and the ITR for audit-covered assessees from 31 October to 21 November 2026. It applies to persons covered by Explanation 2 to section 139(1), not to every taxpayer.
It depends on the state or UT of your GSTIN. Chhattisgarh, Madhya Pradesh, Gujarat, Maharashtra, Karnataka, Goa, Kerala, Tamil Nadu, Telangana, Andhra Pradesh, Dadra and Nagar Haveli and Daman and Diu, Puducherry, Andaman and Nicobar Islands and Lakshadweep file by the 22nd. Every other state and UT files by the 24th. Pick your state in the tool and it applies the right date.
Click the .ics button for one month or "All 6 months" for the full season, then import the file in Google Calendar (Settings, Import and export), Apple Calendar (File, Import) or Outlook. Each date is an all-day event with a reminder at 9 AM two days before. Re-importing updates the same events instead of duplicating them.
It includes extensions notified up to 8 October 2026. Later extensions are notified ad hoc, so confirm on gst.gov.in and incometaxindia.gov.in before you file. Due dates do not move for Sundays; the tool flags them so you can file a working day early. Nothing you tick is uploaded.
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