ITR Filing AY 2025-26: New Rules, Deadlines & Common Mistakes to Avoid

Income Tax Return Filing for AY 2025-26: What’s Changed, What to Watch Out For, and How to Avoid the Usual Pitfalls

Let’s be honest—filing your income tax return isn’t anyone’s idea of fun. But with the Assessment Year 2025-26 bringing in a slew of changes, it’s more important than ever to get things right. If you’re feeling overwhelmed by all the new rules, extended deadlines, and stricter reporting requirements, you’re not alone. Here’s a clear, practical guide to what’s new, what mistakes to avoid, and how to make sure your ITR filing goes off without a hitch this year.

Extended Deadlines: More Time, But Don’t Get Complacent

This year, the Central Board of Direct Taxes (CBDT) has given taxpayers a breather. The usual July 31 deadline for individuals, HUFs, AOPs, and BOIs (where accounts don’t need auditing) has been pushed to September 15, 2025. This extension is a direct result of the big changes in ITR forms and the need for the system to catch up. So, if you’re used to scrambling at the last minute, you’ve got a bit more room to breathe—but don’t wait until the eleventh hour.

Here’s the updated schedule you need to know:

Individuals/HUF/AOP/BOI (non-audit): September 15, 2025
Businesses requiring audit: October 31, 2025
Transfer pricing cases: November 30, 2025
Belated and revised returns: December 31, 2025

Major Changes in ITR Forms: What You Need to Know

Expanded ITR-1 and ITR-4 Eligibility

Good news if you’ve made some gains in the stock market or mutual funds: You can now report Long-Term Capital Gains (LTCG) under Section 112A up to ₹1.25 lakh directly in ITR-1 and ITR-4, provided you don’t have any capital losses to carry forward. That’s a bump up from the previous ₹1 lakh limit, and it means a simpler filing process for many small investors and salaried folks.

Enhanced Validation and Form Selection

The ITR utility has gotten smarter. It now checks your TDS sections in Form 26AS and blocks you from filing ITR-1 if certain TDS codes are present. This means you’re less likely to pick the wrong form by mistake—a common error that can cause headaches later.

Mandatory Tax Regime Disclosure

The new tax regime is now the default. If you want to stick with the old regime (which lets you claim deductions), you must clearly state your choice. First-timers opting out of the new regime need to submit Form 10-IEA. Don’t skip this step, or you might get locked into a regime you didn’t mean to choose.

Common Mistakes: The Usual Suspects (and How to Dodge Them)

It’s easy to trip up when filing your return, especially with all the new rules. Here are the mistakes that catch most people out—and how to avoid them:

Wrong Personal Details: Double-check your PAN, Aadhaar, and date of birth. If your PAN and Aadhaar details don’t match, your return could get stuck.
Bank Account Not Validated: Make sure your bank account is validated on the tax portal. Otherwise, your refund might not show up when you expect it.
Incorrect ITR Form: Picking the wrong form can delay processing or even get your return rejected. Match your income type and category to the right form.
Missing Income Sources: Don’t forget to report all your income—salary, interest, rent, capital gains, even exempt income like PPF interest or agricultural income.
Mismatch with Form 26AS/AIS/TIS: Your reported income should match what’s in Form 26AS, AIS, and TIS. Any mismatch can trigger a notice from the tax department.
Not Claiming Eligible Deductions: Review all your investments and expenses. Don’t leave money on the table by missing deductions under Sections 80C, 80D, etc..
Not Paying Advance Tax: If you owe advance tax, pay it on time to avoid penalties.