Income Tax — FY 2025-26 & Advance Tax 2026-27
ITR for FY 2025-26 (AY 2026-27) · Advance Tax for FY 2026-27
Note: ITR filing deadlines falling in 2026 (31 July, 31 August, 31 October, 30 November) relate to income earned in FY 2025-26 (AY 2026-27) and are governed by the Income Tax Act, 1961 — existing ITR forms (ITR-1, 2, 3, 4, etc.) continue to apply. The Finance Act, 2026 introduced a new 31 August deadline for non-audit ITR-3 and ITR-4 filers. Advance Tax instalments from June 2026 onwards are for income being earned in FY 2026-27, which will be governed by the Income Tax Act, 2025. New ITR forms for FY 2026-27 income will apply when filing in 2027.
| Due Date | Obligation | Category |
|---|---|---|
| 31 May 2026 | Statement of Financial Transactions (SFT) — FY 2025-26 — Form 61A: Mandatory for specified entities — banks, NBFCs, mutual funds, sub-registrars of properties, companies issuing shares/dividends/buybacks, post offices, NSDL/CDSL — Section 285BA read with Rule 114E (FY 2025-26 deadline already passed; listed for reference) | IT |
| 15 June 2026 | Advance Tax — 1st instalment (15%) for FY 2026-27 — if missed, pay the shortfall along with the 15 September instalment; interest under Sec 234C applies | IT |
| 31 July 2026 | ITR Filing — FY 2025-26 (AY 2026-27) — ITR-1 & ITR-2: Salaried individuals, HUFs, capital gains, house property income (no business income) — Income Tax Act, 1961 forms | IT |
| 31 August 2026 | ITR Filing — FY 2025-26 (AY 2026-27) — ITR-3 & ITR-4 (Non-Audit): Individuals and HUFs with business or professional income not liable for tax audit — includes presumptive taxation under Sec 44AD/44ADA/44AE — Income Tax Act, 1961 forms | IT |
| 15 September 2026 | Advance Tax — 2nd instalment (45% cumulative) for FY 2026-27 | IT |
| 30 September 2026 | Tax Audit & Other Audit Reports — FY 2025-26 (AY 2026-27) — Form 3CA/3CB/3CD: Tax audit report under Section 44AB (all taxpayers liable for tax audit); Form 29B: MAT audit report under Section 115JB (companies subject to Minimum Alternate Tax); Form 10B / 10BB: Audit report for charitable trusts and educational institutions under Sections 12A / 10(23C) — all reports must be filed before ITR | IT |
| 31 October 2026 | ITR Filing — FY 2025-26 (AY 2026-27) — Tax Audit cases: Companies, entities and individuals liable for audit under Section 44AB; working partners of audit firms — Income Tax Act, 1961 forms | IT |
| 30 November 2026 | Transfer Pricing obligations — FY 2025-26 (AY 2026-27) — Form 3CEB: Accountant's Report on international transactions / specified domestic transactions under Section 92E — must be filed before ITR; ITR Filing: for all assessees required to furnish Form 3CEB — Income Tax Act, 1961 forms | IT |
| 15 December 2026 | Advance Tax — 3rd instalment (75% cumulative) for FY 2026-27 | IT |
| 31 December 2026 | Last date for belated ITR for FY 2025-26 (AY 2026-27) — Section 139(4) | IT |
| 15 March 2027 | Advance Tax — 4th and final instalment (100%) for FY 2026-27 | IT |
| 31 March 2027 | Last date for revised ITR for FY 2025-26 (AY 2026-27) — Section 139(5) — to correct errors in the original return | IT |
TDS Key Dates — Tax Year 2026-27
Monthly deposit + Quarterly returns · Form 138 (Salary, was 24Q) · Form 140 (Non-salary, was 26Q) · Form 144 (Non-resident, was 27Q) · Section 397, IT Act 2025
Forms renumbered from 1 April 2026: Under the Income-tax Act 2025 and Income-tax Rules 2026, all TDS return forms carry new numbers from Tax Year 2026-27 — 24Q → Form 138, 26Q → Form 140, 27Q → Form 144. Form 141 replaces challan-cum-statements 26QB/26QC/26QD/26QE. Old form numbers apply only to periods up to 31 March 2026 (e.g. a revised FY 2025-26 return). A return filed on the wrong form number will be rejected.
| Due Date | Obligation | Type |
|---|---|---|
| 7th of following month | TDS deposit for deductions made April 2026 – February 2027 (non-government deductors) | TDS Monthly |
| 30 April 2027 | TDS deposit for deductions made in March 2027 (extended deadline for March — TDS only) | TDS Annual |
| 31 July 2026 | TDS Return — Q1 (April–June 2026): Forms 138, 140, 144 (old 24Q, 26Q, 27Q) | TDS Quarterly |
| 31 October 2026 | TDS Return — Q2 (July–September 2026): Forms 138, 140, 144 | TDS Quarterly |
| 31 January 2027 | TDS Return — Q3 (October–December 2026): Forms 138, 140, 144 | TDS Quarterly |
| 31 May 2027 | TDS Return — Q4 (January–March 2027): Forms 138, 140, 144 | TDS Quarterly |
| 15 June 2027 | TDS Certificate — Form 130 (Salary — was Form 16) — annual certificate to be issued to employees for Tax Year 2026-27 | TDS Annual |
| Within 15 days of filing the quarterly return | TDS Certificate — Form 131 (Non-salary — was Form 16A) — quarterly issuance (i.e. by 15 Aug 2026 / 15 Nov 2026 / 15 Feb 2027 / 15 Jun 2027) | TDS Quarterly |
Interest & penalties (IT Act 2025 references): Tax not deducted on time — interest at 1% per month (Sec 398(3)(i), was 201(1A)(i)). Tax deducted but deposited late — interest at 1.5% per month from deduction date to deposit date (Sec 398(3)(ii), was 201(1A)(ii)). Late filing of TDS return: ₹200 per day (Sec 427, was 234E), capped at the TDS amount, plus penalty ₹10,000–₹1 lakh (Sec 461, was 271H).
TCS (Tax Collected at Source) — Tax Year 2026-27
Form 143 (quarterly return — was Form 27EQ) · Applicable to motor vehicle dealers, property sellers, e-commerce operators, LRS/foreign travel, alcohol, forest produce and scrap sellers
Major change from Tax Year 2026-27: The TCS return (now Form 143, was Form 27EQ) has been aligned with the TDS return schedule under the Income-tax Rules 2026 — due on the 31st (31 Jul / 31 Oct / 31 Jan / 31 May), not the 15th as under the old regime. The old 15 July / 15 Oct / 15 Jan / 15 May dates applied to Form 27EQ only up to FY 2025-26. TCS deposit for March remains due 7 April — the 30 April extension applies only to TDS.
| Due Date | Obligation | Type |
|---|---|---|
| 7th of following month | TCS deposit for collections made April 2026 – February 2027 | TCS Monthly |
| 7 April 2027 | TCS deposit for collections made in March 2027 — note: 7 April, not 30 April (which is the TDS-only extended deadline) | TCS Annual |
| 31 July 2026 | TCS Return — Q1 (April–June 2026): Form 143 (was 27EQ) — now same date as TDS returns | TCS Quarterly |
| 31 October 2026 | TCS Return — Q2 (July–September 2026): Form 143 | TCS Quarterly |
| 31 January 2027 | TCS Return — Q3 (October–December 2026): Form 143 | TCS Quarterly |
| 31 May 2027 | TCS Return — Q4 (January–March 2027): Form 143 | TCS Quarterly |
| Within 15 days of filing the quarterly return | TCS Certificate — Form 133 (was Form 27D) — to be issued to the buyer or payer in whose name TCS was collected | TCS Quarterly |
Penalty for late TCS deposit: Interest at 1% per month from collection date to deposit date (was Section 206C(7); corresponding provision under IT Act 2025). Late filing of Form 143: ₹200 per day of delay (Sec 427, was 234E), capped at the TCS amount, plus penalty ₹10,000–₹1 lakh (Sec 461, was 271H).
GST — Monthly Filers
Taxpayers with turnover above ₹5 crore in preceding financial year
| Due Date | Obligation | Form |
|---|---|---|
| 11th of following month | GSTR-1 — Outward supplies statement for the preceding month | GST GSTR-1 |
| 13th of following month | IFF (Invoice Furnishing Facility) — if applicable for QRMP filers in months 1 & 2 | GST IFF |
| 20th of following month | GSTR-3B — Summary return and tax payment for the preceding month | GST GSTR-3B |
GST — QRMP Filers
Taxpayers with turnover up to ₹5 crore eligible for Quarterly Return Monthly Payment scheme
| Due Date | Obligation | Form / Note |
|---|---|---|
| 25th of each month (months 1 & 2 of quarter) | Monthly tax payment for the first two months of the quarter | GST PMT-06 |
| 13th of month after quarter-end | GSTR-1 (Quarterly) — outward supplies for the quarter | GST GSTR-1 |
| 22nd of month after quarter-end | GSTR-3B (Quarterly) — for Category 1 states (northern / western zone) | GST GSTR-3B |
| 24th of month after quarter-end | GSTR-3B (Quarterly) — for Category 2 states (southern / eastern zone) | GST GSTR-3B |
GST — Composition Scheme
Registered taxpayers under Section 10 of CGST Act (turnover up to ₹1.5 crore for goods / ₹75 lakh for services)
| Due Date | Obligation | Form / Note |
|---|---|---|
| 18 July | CMP-08 — Quarterly statement-cum-challan for Q1 (April–June) — self-assessed tax payment by composition dealers | GST CMP-08 |
| 18 October | CMP-08 — Quarterly statement-cum-challan for Q2 (July–September) | GST CMP-08 |
| 18 January | CMP-08 — Quarterly statement-cum-challan for Q3 (October–December) | GST CMP-08 |
| 18 April | CMP-08 — Quarterly statement-cum-challan for Q4 (January–March) | GST CMP-08 |
| 30 April (following FY) | GSTR-4 — Annual Return for Composition Dealers — summary of all outward supplies and tax paid during the financial year (for FY 2025-26: due 30 April 2026) | Annual GSTR-4 |
GST — TDS & TCS Deductors / Collectors
Government departments, PSUs, local bodies deducting GST under Section 51 · E-commerce operators collecting GST under Section 52 · Input Service Distributors under Section 20
| Due Date | Obligation | Form |
|---|---|---|
| 10th of following month | GSTR-7 — Monthly return for GST TDS deductors under Section 51 (Central/State Government, local authority, Government authority, PSUs, certain specified persons) — TDS deposit is also due by this date | GST GSTR-7 |
| 10th of following month | GSTR-8 — Monthly return for GST TCS collectors under Section 52 (e-commerce operators required to collect TCS @ 0.5% on net taxable supplies made through their platform) — TCS deposit also due by this date | GST GSTR-8 |
| 13th of following month | GSTR-6 — Monthly return for Input Service Distributors (ISD) under Section 20 — distribution of common input tax credit to branches / units | GST GSTR-6 |
GST — Annual Returns & Refund Deadlines
Filed after the close of each financial year
| Due Date | Obligation | Form |
|---|---|---|
| 31 December (following FY) | GSTR-9 — Annual Return (all regular registered taxpayers with turnover > ₹2 crore) | Annual GSTR-9 |
| 31 December (following FY) | GSTR-9C — Reconciliation Statement (taxpayers with turnover > ₹5 crore) | Annual GSTR-9C |
| Within 2 years of relevant date | Export refund application (including IGST refund on exports) | GST Refund |
| Within 2 years of relevant date | ITC accumulation refund application | GST Refund |
| Within 2 years of date of payment | Refund of tax paid by mistake or in excess | GST Refund |
| 31 July 2026 | GSTAT Appeal — Token mechanism to preserve appeal filing deadline: generate a token on or before this date; complete actual appeal filing within 60 days of token generation (GST Order No. 156/2026, dated 10-07-2026) | GST Appeal |
Last reviewed: July 2026 · Always verify critical deadlines directly on incometax.gov.in and gst.gov.in — dates are subject to extension notifications by CBDT / CBIC.