Master Income Tax Compliance Calendar: Tax Year 2026-27
Publisher’s Accuracy Note
This calendar has been verified against the official Income Tax Department portal (incometax.gov.in), CBDT notifications, IT Act 2025, and IT Rules 2026. Two governing frameworks run simultaneously: the IT Act 1961 applies to AY 2026-27 (income of FY 2025-26), while the IT Act 2025 applies to Tax Year 2026-27 (income from 01 April 2026). Due dates in this calendar cover both. Read the governing act column carefully before applying any due date.
At a Glance — Critical Annual Dates for Tax Year 2026-27
| Due Date | Compliance | Governing Act | Default Consequence |
|---|---|---|---|
| 07 May 2026 | TDS deposit for April 2026 | IT Act 2025 | Interest @ 1.5%/month under Section 201(1A) |
| 30 May 2026 | Form 27D — Q4 TCS certificate for Jan–Mar 2026 | IT Act 1961 | Late fee + penalty |
| 31 May 2026 | TDS return Q4 FY 2025-26 (Forms 24Q/26Q/27Q) | IT Act 1961 | ₹200/day under Section 234E |
| 15 June 2026 | Advance tax instalment 1 — Tax Year 2026-27 (≥15%) | IT Act 2025 | Interest under Section 234C |
| 15 June 2027 | Form 16 (old) / Form 130 (new) for TY 2026-27 | IT Act 2025 | Penalty for non-issue |
| 31 July 2026 | ITR for AY 2026-27 — non-audit individuals/HUFs | IT Act 1961 | ₹1,000/₹5,000 fee + interest |
| 31 July 2027 | ITR for Tax Year 2026-27 — non-audit | IT Act 2025 | Same |
| 30 September 2026 | Tax audit report for AY 2026-27 — non-TP cases | IT Act 1961 | 0.5% of turnover or ₹1.5 lakh |
| 15 September 2026 | Advance tax instalment 2 — Tax Year 2026-27 (≥45%) | IT Act 2025 | Interest under Section 234C |
| 15 December 2026 | Advance tax instalment 3 — Tax Year 2026-27 (≥75%) | IT Act 2025 | Interest under Section 234C |
| 31 October 2026 | ITR for AY 2026-27 — audit cases | IT Act 1961 | ₹1,000/₹5,000 fee + interest |
| 30 November 2026 | ITR — transfer pricing cases AY 2026-27 | IT Act 1961 | Fee + interest |
| 31 March 2027 | Belated/revised ITR for AY 2026-27 | IT Act 1961 | If missed — permanently time-barred |
| 15 March 2027 | Advance tax — final instalment (100%) | IT Act 2025 | Interest under Sections 234B/234C |
| 31 March 2027 | Year-end compliance — MSME payments; Section 43B | IT Act 2025 | Disallowance in Tax Year 2026-27 |
Month-by-Month Compliance Calendar
April 2026
| Date | Compliance | Governing Act |
|---|---|---|
| 07 April 2026 | Deposit TDS/TCS for March 2026 (non-government deductors — extended to 30 April for March) | IT Act 1961 |
| 14 April 2026 | Issue Form 16B to property seller (for TDS deposited via Form 26QB in March) | IT Act 1961 |
| 15 April 2026 | PF and ESIC payment for March 2026 | PF/ESIC Act |
| 30 April 2026 | TDS deposit for March 2026 — non-government deductors (extended deadline for March only) | IT Act 1961 |
| 30 April 2026 | Advance tax estimate for Tax Year 2026-27 — prepare projected P&L and compute liability | IT Act 2025 |
| 30 April 2026 | Update TDS deduction systems to new-Act section numbers (Section 392/393) | IT Act 2025 |
Professional Alert for April 2026: This is the first month of dual-Act operation. TDS deductions on payments from 01 April 2026 are governed by Section 392/393 of IT Act 2025. Update payroll software, accounting systems, and TDS challans immediately. Also update HRA calculations for employees in Bangalore, Pune, Hyderabad, and Ahmedabad to the new 50% rate under IT Rules 2026.
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