ITR Filing AY 2026-27: Budget 2026 Rewrites the Deadline Calendar — Here’s Every Date You Need

CBDT notified the new ITR forms a full month before the financial year even closed. Budget 2026 then pushed the revised-return window from December to March — but attached a brand-new fee to it. Here is what has actually changed, and what every taxpayer filing for Assessment Year 2026-27 needs to get right.

Six weeks out from the July 31 deadline, India’s income-tax filing season for Assessment Year 2026-27 is already shaping up differently from the chaos of last year. The Central Board of Direct Taxes notified the complete set of ITR forms — ITR-1 through ITR-7, along with the ITR-V verification form and the ITR-U updated-return form — on March 30, 2026, days before the new financial year began, with a technical corrigendum following on April 10. That timeline matters: a year earlier, late and heavily revised forms forced the CBDT into an emergency extension that ran from July 31 to September 15, after months of pressure from the Institute of Chartered Accountants of India, regional tax bar associations and even sitting members of Parliament. This time, taxpayers and chartered accountants have had the forms in hand since before April 1, with utilities for ITR-1, ITR-2 and ITR-4 already live for online and offline filing.

That head start is one half of the story. The other half is a set of substantive changes that arrived with the Union Budget 2026, presented by Finance Minister Nirmala Sitharaman on February 1. Two of those changes directly reshape the compliance calendar for income earned in FY 2025-26, and a third introduces a cost that did not exist in any earlier assessment year. None of this changes the foundational fact that AY 2026-27 income is still governed entirely by the Income Tax Act, 1961 — even though the new Income Tax Act, 2025 has been in force as the background law since April 1, 2026.

The Due-Date Calendar for ITR Filing AY 2026-27

The table below reflects the standard due dates currently in force. As of this writing, no general extension has been announced for AY 2026-27 by the CBDT.

What Budget 2026 Actually Changed

Two amendments in Budget 2026 apply specifically from FY 2025-26, meaning they govern the return you are filing right now.

1. ITR-3 and ITR-4 get an extra month

Non-audit taxpayers filing ITR-3 or ITR-4 — individuals and firms with business or professional income who are not subject to tax audit — now have until August 31, 2026 rather than July 31. ITR-1 and ITR-2 filers, who have no business income to reconcile, keep the original July 31 date. This is a genuine procedural relief, recognising that business-income taxpayers typically need longer to finalise books, GST reconciliations and presumptive-income computations than salaried filers do.

2. Revised returns can now run until March 31 — but it isn’t free after December

Until this Budget, both belated returns and revised returns shared the same cut-off: three months before the end of the assessment year, which works out to December 31. Budget 2026 has decoupled the two. The belated-return deadline stays at December 31, 2026. But the window to revise an already-filed return — to fix a missed deduction, an incorrect TDS entry, an overlooked capital gain — has been pushed to March 31, 2027.

The window got longer. It did not get cheaper.

Has the Deadline Been Extended? Not Yet — And That Silence Is Itself a Story

As of June 17, 2026, no extension has been announced for AY 2026-27, and the circumstances that forced last year’s extension are largely absent this time. The AY 2025-26 cycle saw structurally revised ITR forms released late, with ITR-5, ITR-6 and ITR-7 utilities not available until August 2025 — barely weeks before what was meant to be the deadline. That mismatch triggered a CBDT extension to September 15, then a further one-day extension to September 16 after the Institute of Chartered Accountants of India formally flagged the lack of corresponding relief for tax-audit cases, and after the Karnataka State Chartered Accountants Association, the Advocates Tax Bar Association and BJP members of Parliament all wrote to the Finance Ministry citing portal glitches and AIS mismatches.

This year’s forms were notified before the financial year had even ended. That does not guarantee there will be no extension — technical glitches, court orders or representations from professional bodies can still force one — but it removes the single biggest reason extensions have happened in recent cycles. The practical advice does not change: do not file on the assumption of an extension that may never come, particularly if you expect a refund, switched jobs during the year, sold listed shares or mutual fund units, or have foreign income to reconcile.

Which ITR Form Should You Use This Year

The 2026-27 forms widen who qualifies for the simpler forms, and several taxpayers who defaulted to ITR-2 out of habit in past years may now be eligible for ITR-1.

ITR-1 (Sahaj) now covers resident individuals — other than not-ordinarily-resident — with total income up to ₹50 lakh from salary or pension, agricultural income up to ₹5,000, and other-source income such as interest or dividends. Two changes widen its scope for AY 2026-27 specifically: it can now be used for income from up to two house properties instead of one, and it accepts long-term capital gains under Section 112A up to ₹1.25 lakh from listed equity or equity mutual funds, provided there is no carried-forward or carry-forward capital loss involved. ITR-1 remains closed to anyone who is a company director, holds unlisted equity shares, has had tax deducted under Section 194N, has deferred ESOP tax, or holds assets or income outside India.

ITR-2 covers individuals and HUFs who do not qualify for ITR-1 and have no business or professional income — typically those with capital gains beyond the ITR-1 threshold, more than two house properties, foreign assets or income, or a directorship. A notable simplification this year: because there was no mid-year capital-gains rate change in FY 2025-26 (unlike the previous year, which required splitting gains into pre- and post-July 23, 2024 buckets), capital gains can now be reported in a single schedule without date-wise bifurcation.

ITR-3 remains the form for individuals and HUFs with business or professional income who do not use presumptive taxation, or whose situation otherwise exceeds ITR-4’s limits.

ITR-4 (Sugam) is for resident individuals, HUFs and firms (other than LLPs) using presumptive taxation under Sections 44AD (business, turnover up to ₹2 crore), 44ADA (professionals, gross receipts up to ₹50 lakh, or ₹75 lakh where cash receipts stay under 5%) or 44AE (goods-transport operators). It carries the same ₹1.25 lakh Section 112A allowance as ITR-1, with the same director/unlisted-shares/foreign-asset exclusions.

One small but consequential housekeeping change applies across all forms: the Aadhaar Enrolment ID is no longer an acceptable substitute. Filers must enter the full 12-digit Aadhaar number.

AY 2026-27 vs Tax Year 2026-27: The Transition Year, Explained

This is the distinction tripping up the most taxpayers this season, and it is worth being precise about it. Under the Income Tax Act, 1961, every return has always involved two years: the “previous year” in which income was actually earned, and the “assessment year” — the following year — in which it gets filed and assessed. AY 2026-27 is the assessment year for income earned between April 1, 2025 and March 31, 2026, and that return is filed entirely under the old 1961 Act, using old-regime section references such as 80C, 80D, 24(b) and 87A.

The Income Tax Act, 2025, in force as the governing statute from April 1, 2026, does away with that two-year naming convention altogether in favour of a single unified “tax year” — essentially collapsing the previous-year/assessment-year gap into one label. Income earned between April 1, 2026 and March 31, 2027 will be called Tax Year 2026-27, and its return will fall due around July 2027. There is no “AY 2027-28” waiting in the wings; the new Act simply will not use that terminology. Practically, this means the return you are filing this season and the one you will file next year operate under two structurally different laws, even though the rhythm of due dates — file, audit, revise, update — looks similar on the surface.

Belated, Revised and Updated Returns: Three Different Doors

Missing July 31 (or August 31, for business-income non-audit filers) does not mean missing the chance to file altogether, but each fallback route carries its own cost and its own ceiling.

A belated return under Section 139(4) can be filed any time up to December 31, 2026, or before the assessment is completed, whichever comes first. It attracts the Section 234F fee — ₹1,000 if total income is ₹5 lakh or below, ₹5,000 otherwise — plus Section 234A interest at 1% per month on any unpaid tax. The real cost is often invisible until later: business losses, capital losses and speculative losses (everything except house-property loss and unabsorbed depreciation) lose their right to be carried forward if the original filing was late.

A revised return under Section 139(5) corrects an already-filed return and now runs until March 31, 2027 — with the Section 234I fee kicking in for anything filed after December 31, as detailed above. There is no statutory cap on how many times a return can be revised within that window, though chartered accountants generally caution against repeated revisions, since each one can draw closer scrutiny.

An updated return under Section 139(8A), the ITR-U, is the last resort and the most expensive one. Following the Finance Act 2025 extension of its window from 24 to 48 months, an ITR-U for AY 2026-27 can be filed any time up to March 31, 2031 — but the additional tax payable rises the longer you wait: 25% of the tax-and-interest differential within the first 12 months, 50% within 24 months, 60% within 36 months, and 70% within 48 months. ITR-U cannot be used to claim or increase a refund, cannot reduce previously declared income, and can be filed only once per assessment year. It exists to bring undisclosed income onto the books voluntarily, not to optimise a return after the fact.

The Mistakes That Keep Repeating Every Season

Documents to Keep Ready

Before sitting down to file, gather Form 16, Form 26AS, the Annual Information Statement, bank statements, interest certificates, capital gains statements from brokers and mutual fund platforms, rent receipts, home loan interest certificates, insurance premium and medical insurance proofs, donation receipts, foreign asset details where applicable, and business or professional records. Capital gains statements in particular should be downloaded directly from depositories and fund houses rather than reconstructed from memory or SMS alerts, since AIS will cross-check the figures regardless.

The Bottom Line

AY 2026-27 sits at an unusual hinge point: the last full filing cycle conducted entirely under the Income Tax Act, 1961, even as the Income Tax Act, 2025 has already taken over as the law of the land for income earned from this April onward. Budget 2026 has made the calendar genuinely more forgiving in two places — an extra month for business-income non-audit filers, and a longer runway to fix mistakes after filing — while quietly attaching a price tag to that second concession through Section 234I. The CBDT’s early release of this year’s forms removes the strongest excuse for the kind of last-minute extension drama that defined the previous cycle, but it is not a guarantee against one. The dependable strategy remains the boring one: reconcile against AIS and Form 26AS, confirm the correct form given this year’s wider ITR-1 eligibility, file before July 31 or August 31 as applicable, verify immediately, and treat the longer revision window as a safety net rather than a plan.

This article is for general informational purposes and reflects publicly available CBDT notifications and Budget 2026 provisions as of June 17, 2026. It is not tax or legal advice. Individual circumstances vary — taxpayers should verify specifics on the e-filing portal or with a qualified chartered accountant before acting.