Finance Bill 2026 Proposes Draft Rule 165, Overhauls ITR-U Filing Framework

(INDIA) — The Finance Bill 2026 introduced updated return, or ITR-U, provisions under section 263(6) of the Income-tax Act, 2025, bringing the mechanism under Draft Rule 165 and requiring taxpayers to use Form ITR-U to file an updated return.

The changes recast how taxpayers correct mistakes, align the updated-return process with the Income-tax Act, 2025, and place ITR-U inside a wider rewrite of return forms under the Draft Income Tax Rules 2026.

Draft Rule 165 sets the governance framework for the updated return under section 263(6) of the Income-tax Act, 2025, and makes Form ITR-U the required filing vehicle for an updated return.

The Finance Bill 2026 also extended the correction window for updated returns to March 31, reflecting the recognition that taxpayers make errors and giving more time to correct them.

That longer window aims to cut avoidable litigation by allowing more corrections within the updated-return route, rather than pushing disputes into other channels.

Another change allows taxpayers to file an updated return even after reassessment has started, provided they pay the additional tax due.

The measure framed this as a practical approach that enables faster resolution of tax matters, by letting taxpayers close gaps through an updated return even after reassessment begins.

Alongside those operational changes, the ITR-U framework was redesigned to align with the provisions of the Income-tax Act, 2025, with the stated purpose of ensuring consistency across the new tax administration structure.

That alignment links the updated return more tightly to the architecture of the newer Act, rather than treating ITR-U as a stand-alone correction tool.

Form ITR-U sits inside a broader redesign of income tax return forms under the Draft Income Tax Rules 2026, which set out a simplified overall ITR framework.

Under the new draft, the number of forms falls to 190 forms, from 399 under the 1962 rules, as part of the simplification exercise.

The redesign also builds in prefilled but editable data, a feature aimed at reducing the effort involved in completing the form while still allowing taxpayers to make corrections.

Automated reconciliation capabilities form another stated feature of the revamped forms, intended to reduce compliance burden by letting filers reconcile information within the return framework.

Within that redesign, Form ITR-U functions as the designated form for updated returns under Draft Rule 165, placing the correction process into the same modernized form ecosystem.

By tying updated returns to a specific required form, the framework channels corrections through a standardized format and process, rather than leaving the route open-ended.

The Finance Bill 2026 changes also sharpen the sequencing between reassessment and voluntary correction, by keeping the updated-return option available even after reassessment has started.

That flexibility remains conditional on paying additional tax due, linking the ability to update to settlement of the amount the updated return reveals.

Taken together, the extended filing window to March 31 and the ability to file after reassessment begins expand the scenarios in which ITR-U can be used to correct a return.

At the same time, the alignment with the Income-tax Act, 2025 frames the updated return as part of an integrated administration structure, rather than an exceptional post-filing fix.

The new Income Tax Rules 2026, including the ITR-U framework, are set to take effect from April 1, 2026.

Even with that start date, returns for FY 2025-26 will largely continue under the existing 1962 IT rules during the transition period.

The new rules take fuller effect from FY 2026-27, which places much of the redesigned framework, including the redesigned forms, into practical operation from that point.

That timeline means taxpayers and advisers face a split period: an effective date of April 1, 2026 for the new rules, while FY 2025-26 filing largely proceeds under the older 1962 IT rules.

The Draft Income Tax Rules 2026 redesign nonetheless sets a direction of travel, because it folds Form ITR-U into a larger reworking of how returns are structured.

The reduction from 399 forms to 190 forms signals the scale of consolidation, even as Form ITR-U remains a distinct requirement for an updated return.

Prefilled but editable data and automated reconciliation, as described features of the redesigned forms, are positioned as compliance aids rather than as restrictions, because the data can still be edited.

Those features also connect to the stated objective of lowering compliance burden, which sits alongside the policy aim of reducing avoidable litigation through a longer correction window.

In practical terms, the March 31 extension expands the time available to fix errors via ITR-U, so taxpayers have a longer period to bring their filings in line with their corrected position.

The ability to file an updated return after reassessment has started adds a further avenue to resolve issues that might otherwise stay within reassessment, if the taxpayer chooses to file and pay additional tax due.

Because Draft Rule 165 requires Form ITR-U, the correction route also becomes more uniform, with the updated-return process routed through a defined form in the redesigned rules.

The emphasis on alignment with the Income-tax Act, 2025 also frames the updated return within the broader shift to the new tax administration structure, rather than leaving it governed by older rule concepts.

For taxpayers, the combined package points to a system that expects errors and provides a longer, more structured correction mechanism, while still linking post-reassessment corrections to payment of additional tax.

For administrators, the alignment and redesign bring updated returns into the same framework as other return forms under the Draft Income Tax Rules 2026, rather than treating ITR-U as an add-on.

The Finance Bill 2026 measures also underline the policy choice to keep the updated-return channel open even when reassessment has started, so long as the additional tax due is paid.

That approach treats correction and payment as a route to closure, seeking faster resolution of tax matters through updated returns rather than prolonged dispute.

The timeline places the ITR-U framework into the new Income Tax Rules 2026 from April 1, 2026, while acknowledging that FY 2025-26 returns largely continue under the 1962 IT rules during transition.

The fuller effect from FY 2026-27 positions the redesigned forms, including Form ITR-U with prefilled but editable data and automated reconciliation, as part of the operating norm once the transition matures.

By embedding ITR-U into Draft Rule 165 and the Draft Income Tax Rules 2026 redesign, the Finance Bill 2026 changes connect a longer correction window and post-reassessment flexibility to a simplified, standardized form framework that reduces the total number of return forms to 190 forms.