Tax Compliance Calendar 2026-27: GST, TDS, Income Tax & ROC Due Dates

Every recurring tax deadline a business faces, GST, TDS, income tax and ROC, organised into one clear calendar so nothing is ever missed.

For any business, the tax year is a steady drumbeat of deadlines, monthly GST returns, monthly TDS deposits, quarterly TDS returns, annual income tax and ROC filings, each with its own date and its own penalty for lateness. Missing any of them is easy when they are scattered across different laws and portals. This calendar brings the recurring deadlines together so you can see the whole year at a glance and stay ahead of every one.

Monthly deadlines

Two obligations recur every month for most businesses.

• TDS deducted in a month must generally be deposited by the 7th of the following month (with March's deduction due by 30 April).
• On the GST side, GSTR-1 and GSTR-3B fall due monthly for regular filers, with specific dates depending on turnover and scheme, businesses under the QRMP scheme file quarterly but still pay tax monthly.
• These monthly dates are the backbone of the compliance calendar, and the ones most easily missed without a reminder system, because they come round so relentlessly.

Quarterly deadlines

Several obligations recur each quarter.

• TDS returns, Form 24Q for salary, 26Q for other domestic payments, 27Q for non-residents, are generally due 31 July, 31 October, 31 January and 31 May.
• Advance tax instalments fall due on 15 June, 15 September, 15 December and 15 March, applicable where your tax liability crosses the threshold.
• Businesses under QRMP file their GST returns quarterly too.
• Mapping these quarterly dates alongside the monthly ones gives you the full rhythm of the year and prevents the scramble that catches unprepared businesses.

Annual deadlines: income tax

The income tax year has its own key dates.

• For AY 2026-27, ITR is generally due 31 July for individuals filing ITR-1 or ITR-2 without audit, 31 August for ITR-3 and ITR-4 without audit, and 31 October where a tax audit applies.
• Belated and revised returns can generally be filed until 31 December.
• These annual dates carry some of the heaviest consequences for lateness, late fees under Section 234F, interest, and the loss of loss-carry-forward, so they deserve particular attention and early action.

Annual deadlines: ROC and audit

Companies and LLPs carry annual filings with the Registrar of Companies.

• Companies file their annual returns and financial statements (forms such as AOC-4 and MGT-7) within prescribed periods after their annual general meeting, and must complete their statutory audit.
• LLPs file their annual return and statement of accounts on their own timeline.
• New companies additionally have first-year obligations, auditor appointment within 30 days and INC-20A before commencing business.
• These filings carry per-day penalties for delay, which accumulate quietly, so they belong firmly on the calendar.

Why a calendar changes everything

The businesses that never get penalty notices are rarely the ones with the most expertise, they are the ones with a system.

• When every recurring deadline sits on a shared calendar with advance reminders, compliance stops being a series of last-minute panics and becomes routine.
• The cost of a missed deadline, in fees, interest and stress, is always higher than the small effort of tracking it.
• A calendar turns compliance from reactive fire-fighting into calm, predictable routine, which is exactly how it should be.

How we keep your calendar for you

At MOREOFTAX, every client we work with enters a managed compliance calendar.

• We track your monthly GST and TDS deadlines, quarterly TDS and advance-tax dates, and annual income-tax and ROC filings, and we send reminders well before each one.
• You never have to watch the calendar yourself; on-time filing simply becomes the default.
• For businesses juggling GST, TDS, tax and ROC across the year, that peace of mind, knowing nothing will be missed, is often the most valuable thing we provide.

Official references: income tax portal, GST portal.