Compliance — Every Due Date

Income Tax Calendar 2026-27: Every Due Date (ITR, Advance Tax, TDS, 80C)

Right now (Sept 2026): Q2 advance tax due 15 Sept · belated ITR window open till 31 Dec · audit reports by 30 Sept. Full 12-month table below — bookmark it.

The 12-month tax calendar

When	What
April	File 15G/15H (zero-TDS); submit 12BB to employer; start 80C early (old regime)
15 June	Q1 advance tax (15%) + employer issues Form 16
31 July	ITR for non-audit + TDS Q1 return + 10-IEA (business opt-out)
15 Sept	Q2 advance tax (45% cumulative)
30 Sept	Tax audit report
31 Oct	ITR for audit cases + TDS Q2 return
15 Dec	Q3 advance tax (75% cumulative)
31 Dec	Belated ITR deadline + fee-free revise deadline
31 Jan	TDS Q3 return
15 Mar	Q4 advance tax (100%)
31 Mar	Revised ITR deadline + 80C/proof cut-off (old regime) + tax harvesting
31 May	TDS Q4 return + SFT (high-value transactions)

Rolling deadlines: 26QB/26QC within 30 days of TDS; e-verify within 30 days of filing; advance-tax shortfall interest u/s 234B/C. Advance-tax deep-dive → · Missed a date? →

Missed a date? Here's the price list (motivation table)

Miss	Price	Escape hatch
Advance installment (15th)	234C interest (1% × months)	Pay next installment with catch-up
31 July ITR deadline	428 fee + 234A + no loss c/f	Belated till 31 Dec
30-day e-verification	Return INVALID (as if unfiled)	Condonation request (discretionary)
31 Dec belated deadline	Normal filing closed	ITR-U within 48 months (extra tax)
Form 10-IEA (business + old regime)	Stuck in new regime	None — genuinely none

Print this table and stick it where you pay bills. In our experience, 90% of tax penalties come from 10% of dates — 31 July and the four 15ths. Master six dates and the calendar fears you.

📌 Remember: June starters never pay penalties

Every date on this calendar has one enemy: July-25th panic. Start gathering documents in June — Form 16 arrives by the 15th, AIS settles by month-end, and CAs still answer phones. File in the first week of July and e-verify the same evening. The entire penalty universe (428, 234A/B/C, invalid returns) exists almost exclusively for last-week filers. Be early; it's free.

By TaxSetu Editorial Team · Last reviewed: 7 October 2026

Based on the Income-tax Act 2025, Income Tax Rules 2026 and CBDT notifications; sections per the Income-tax Act 1961 (as amended) with 2025-Act mappings where notified · Verify on the official portal: incometax.gov.in

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Frequently Asked Questions

What are the advance tax due dates?+

15 Jun (15%), 15 Sep (45%), 15 Dec (75%), 15 Mar (100%) — salaried-only taxpayers with full TDS are exempt. Advance tax guide.

What if I missed the 31 July ITR deadline?+

File belated by 31 Dec with ₹5,000 fee (₹1,000 under ₹5L income) — then 31 Mar revised, then ITR-U. Late options.

When is Form 16 issued?+

By 15 June each year; TDS returns follow on 31 Jul/31 Oct/31 Jan/31 May.