ITR Filing 2026: Avoid These Costly Mistakes While Filing Income Tax Return or You May Receive a Notice
As the Income Tax Return (ITR) filing season for 2026 begins, millions of salaried taxpayers are rushing to submit their returns. However, tax experts are warning that filing returns in haste — especially by relying only on Form 16 and salary slips — can create major financial problems later.
Many taxpayers end up selecting the wrong ITR form, missing important income disclosures, or skipping mandatory verification steps. Such mistakes can lead to delayed refunds, defective returns, penalties, or even notices from the Income Tax Department.
Here is a detailed guide explaining the difference between ITR-1 and ITR-2, common filing errors, and the precautions taxpayers should take before submitting their returns.
Who Can File ITR-1?
ITR-1, also known as “Sahaj,” is designed for resident individuals with relatively simple income structures. Taxpayers can generally use ITR-1 if:
- Annual income is up to ₹50 lakh
- Income comes from salary or pension
- Earnings include income from up to two house properties
- Income includes interest from savings accounts or fixed deposits
This year, there is also a slight relaxation in rules. Individuals earning up to ₹1.25 lakh in long-term capital gains under Section 112A from shares or mutual funds may still file ITR-1, provided they do not have any carried-forward capital losses.
Who Cannot Use ITR-1?
Being a salaried employee alone does not automatically make someone eligible for ITR-1. Taxpayers must shift to ITR-2 if they have:
- Foreign income or foreign assets
- More than two house properties
- Short-term capital gains from shares
- Directorship in a company
- Unlisted shares
- Complex capital gains transactions
Failing to choose the correct form may result in the return being treated as defective by the Income Tax Department.
Who Should File ITR-2?
ITR-2 is meant for individuals and Hindu Undivided Families (HUFs) who do not earn income from business or profession but have comparatively complex tax details.
ITR-2 becomes necessary if a taxpayer:
- Earns more than ₹50 lakh annually
- Has sold property during the financial year
- Earned short-term gains from stocks or mutual funds
- Owns foreign assets
- Receives foreign income
- Is a company director
- Owns multiple house properties
In simple terms, if your income does not qualify under ITR-1 conditions, ITR-2 is usually the correct option.
Most Common Mistakes Taxpayers Make
Choosing the Wrong ITR Form
One of the biggest errors taxpayers commit is selecting the wrong return form. Some individuals continue using ITR-1 despite having stock market gains or property sale income, while others unnecessarily switch to ITR-2 even when not required.
This mismatch can create complications during processing.
Depending Only on Form 16
Experts say Form 16 does not include every financial detail. Many taxpayers forget to report:
- FD interest income
- Savings account interest
- Dividend income
- Mutual fund redemptions
- Additional TDS entries
As a result, the data submitted in ITR may not match the Income Tax Department’s records.
Why AIS, TIS, and Form 26AS Are Important
Tax professionals strongly advise taxpayers to carefully cross-check:
- AIS (Annual Information Statement)
- TIS (Taxpayer Information Summary)
- Form 26AS
If these records do not match the details filed in your return, the Income Tax Department may issue notices seeking clarification.
Do Not Blindly Trust Pre-Filled Data
The Income Tax portal now auto-fills several details, but experts warn that pre-filled information may sometimes be incomplete or outdated.
Common issues include:
- Missing interest income
- Incorrect bank account details
- Missing deductions
- Old personal information
Therefore, taxpayers should manually verify every section before final submission.
Biggest Challenges in ITR-2 Filing
For taxpayers filing ITR-2, capital gains calculation remains one of the most difficult areas.
Mistakes often happen while calculating:
- Short-term capital gains
- Long-term capital gains
- Property sale profits
- Cost inflation index adjustments
- Capital loss set-offs
Additionally, many individuals forget to disclose foreign assets or tax-free income, even when tax liability is zero.
The Final Step Most People Forget
After filing the return, e-verification is mandatory. Many taxpayers submit the form but fail to complete verification, due to which the return remains unprocessed.
This can delay refunds significantly.
Taxpayers should also ensure that:
- Bank account details are correct
- PAN and Aadhaar are linked
- Mobile number and email ID are updated
Important Advice Before Filing ITR
Before filing your Income Tax Return for 2026, experts recommend:
- Checking AIS, TIS, and Form 26AS carefully
- Selecting the correct ITR form
- Verifying all capital gains calculations
- Reporting every source of income
- Completing e-verification immediately after filing
Taking a few extra minutes to review details properly can help taxpayers avoid penalties, notices, refund delays, and unnecessary stress later.
