As tax season comes closer, many people feel confused with forms, rules, and deadlines.
This time, the confusion is a bit more because India is moving from the old Income Tax Act, 1961 to the new Income Tax Act, 2025.
To make things easier, here is a simplified version of important questions and answers.
This will help you understand when, how, and under which law you need to file your ITR.
What Stays the Same in the New Tax System?
The good news is that many important things have not changed.
The basic process of filing ITR remains the same, just written in simpler language.
All rules related to filing returns are now grouped under one section (Section 263).
You still need to file ITR as per old rules.
Verification methods like Aadhaar OTP and net banking remain unchanged.
ITR Filing Deadlines (No Change)
Normal taxpayers: July 31
Businesses (no audit): August 31
Audit cases: October 31
Special cases: November 30
Late filing is also similar:
Income up to ₹5 lakh: ₹1,000 penalty
Above ₹5 lakh: ₹5,000 penalty
What Happens During the Transition Period?
The shift to the new law may sound confusing, but it’s actually simple if you understand this:
You will not file two ITRs at once. Only one return is filed for a year.
FY 2025-26 return will still be filed under the old law (1961), even after April 1, 2026.
Old ITR forms (ITR-1 to ITR-7) will continue for this period.
Any correction (revised return) will also be done under the old law.
Important Timeline Rules
Belated return: Till December 31, 2026 (or before assessment)
Updated return (ITR-U): Allowed even after the new law starts
For older years: Only updated return can be filed
Key Changes in the New Income Tax Act 2025
The new law introduces some updated timelines and rules:
Belated return: Within 9 months
Revised return: Within 12 months
Updated return: Within 48 months
Rules for Updated Return (ITR-U)
Can file within 48 months
Only one chance per year
Cannot delay tax payment
Old vs New: Which Law Applies?
This is where most people get confused.
AY 2026-27: Comes under the old law (1961) and relates to FY 2025-26
Tax Year 2026-27: Comes under the new law (2025) and relates to FY 2026-27
So yes, both are different and must be handled separately.
Also:
Notices, scrutiny, and audit for FY 2025-26 will continue under the old Act
Even if a raid or document seizure happened earlier, the old law will apply
Losses, Records & Other Important Points
You can carry forward previous losses into the new system (with conditions)
Filing ITR on time is necessary to claim losses
Losses from past years will continue without interruption
Tips for the Transition Year
To avoid mistakes, keep these things in mind:
Maintain separate records for both years
Choose the correct Assessment Year (AY) or Tax Year (TY)
Keep TDS and expense details separate
Try to file your return early
Conclusion: No Need to Panic
The new Income Tax Act 2025 is designed to make things simpler and more transparent, not more complicated.
Just remember:
2026 is the transition year
Follow the correct law for the correct year
File your returns on time
If you stay organized and careful, you can easily avoid penalties and confusion.
