India’s tax system is entering a transition phase, and naturally, this is where most taxpayers begin to feel uncertain.
With the new Income‑tax Act, 2025 set to come into effect from April 1, 2026, many individuals and business owners are asking a simple question: which law applies when filing returns this year? The concern is valid, especially in a year where two frameworks are being discussed at the same time.
However, in practice, the situation is far more straightforward than it appears.
What Law Applies for ITR Filing in 2026
For the current filing cycle, there is no overlap between the old and the new law.
Income earned during FY 2025–26 (April 1, 2025, to March 31, 2026) will continue to be governed by the Income Tax Act, 1961. This income will be reported while filing returns in AY 2026–27.
The new Income Tax Act, 2025, will only apply to income earned from FY 2026–27 onwards.
In simple terms, the system follows a clean year-based transition. One financial year corresponds to one applicable law and one return. This approach ensures that taxpayers do not have to deal with dual frameworks in a single filing cycle.
Why This Transition Matters
Transitions in tax systems are often where confusion leads to compliance errors.
When taxpayers are unsure about which provisions apply, it increases the chances of incorrect reporting, missed deductions, or unnecessary notices later. By clearly separating the applicability year-wise, the government is attempting to minimise such risks.
For professionals managing multiple clients or businesses handling their own compliance, this clarity becomes especially important during filing season.
What Changes From FY 2026–27
While the current filing remains under the old law, the upcoming changes are still relevant for planning.
The newly notified Income Tax Rules, 2026, introduce a mix of relief and tighter compliance, particularly for salaried taxpayers. Certain allowances have been revised upward, including children’s education allowance and hostel allowance. Similarly, more cities may now qualify for higher HRA exemption limits.
At the same time, there are changes in how perquisites, such as company-provided assets, are valued. In some cases, this may lead to higher taxable income if not planned properly.
There is also a noticeable shift towards stricter documentation and disclosure requirements, especially for HRA and deductions. The intent is clear: simplify benefits, but increase transparency.
Structural Shift in Terminology
One of the subtle but important changes in the new framework is the move towards simpler terminology.
The traditional concepts of “financial year” and “assessment year” are proposed to be replaced with a single term — “tax year”. While this may appear minor, it addresses a long-standing source of confusion among taxpayers.
For many individuals, especially first-time filers, understanding the difference between the earning year and the filing year has never been intuitive. This change is aimed at making the system easier to understand from the outset.
What Taxpayers Should Focus on Right Now
For the immediate filing cycle, the focus should remain on the existing law.
All provisions, deductions, and compliance requirements under the Income Tax Act, 1961, will continue to apply. Any changes introduced through the Finance Bill 2026 within the existing framework will also be relevant for this year’s return.
At the same time, it is equally important to start preparing for the upcoming shift. Understanding how allowances, disclosures, and compliance requirements may change can help avoid last-minute adjustments in the next financial year.
A Practical Approach for Businesses and Professionals
For business owners and professionals, this transition is less about immediate action and more about preparedness.
The current year should be treated as a continuation of the existing system, with no structural changes in filing. However, internal processes, documentation practices, and tax planning strategies may need to be reviewed in anticipation of the new framework.
In particular, areas such as expense documentation, employee compensation structuring, and reporting accuracy will require closer attention going forward.
Conclusion
The transition to a new Income Tax Act often creates more confusion in perception than in practice.
For ITR filing in 2026, the process remains unchanged, with the existing law continuing to apply. The new framework comes into effect only for income earned from the next financial year, ensuring a clear separation between the two systems.
For taxpayers, this means focusing on accurate compliance today, while gradually preparing for a simpler but more structured tax environment tomorrow. Over time, if implemented consistently, this transition has the potential to reduce confusion, improve compliance, and create a more predictable tax system.
Disclaimer
This article does not represent expert tax advice; it has been prepared solely for informational purposes. Before making any decisions, readers are advised to speak with a qualified tax expert.