Common Mistakes while filing ITR

The most common mistakes while filing ITR include choosing the wrong ITR form, not matching your income with AIS and Form 26AS, missing interest or other income, picking the wrong tax regime, and forgetting to e-verify the return. Each of these can trigger a defective return notice or delay your refund.

Introduction

Filing an Income Tax Return (ITR) has become much easier with online portals, prefilled data, and automated systems. However, despite these technological improvements, a large number of taxpayers still make mistakes while filing their returns. These errors may appear minor initially, but they often result in defective return notices, refund delays, tax demands, or even scrutiny proceedings later. In many cases, taxpayers do not intentionally hide information; the problem usually arises due to incomplete reconciliation, incorrect reporting, or lack of awareness about changing compliance requirements.

Choosing the Wrong ITR Form

One of the most common mistakes taxpayers make is selecting the wrong ITR form. Many individuals continue using simpler forms such as ITR-1 even when they have capital gains, foreign income, or multiple house properties, which are not permitted under that form. Similarly, small business owners and professionals sometimes choose incorrect presumptive taxation forms without understanding eligibility conditions. Filing the wrong form can make the return defective and may require the taxpayer to file a corrected return again.

Ignoring AIS, TIS, and Form 26AS Reconciliation

Another major issue is ignoring mismatches between Form 16, AIS, TIS, and Form 26AS. Earlier, taxpayers relied mainly on Form 16 for filing returns, but today the Annual Information Statement (AIS) captures a much wider range of financial transactions, including bank interest, securities transactions, mutual fund redemptions, foreign remittances, and high-value purchases. Many taxpayers fail to reconcile this information before filing the return, which later leads to notices for underreporting or mismatch of income.

Non-Reporting of Bank Interest Income

Non-reporting of bank interest is also a very common mistake. Taxpayers often assume that savings account interest or fixed deposit interest need not be disclosed if TDS has not been deducted. However, interest income remains taxable irrespective of whether TDS is deducted or not. Since banks now report these details to the Income Tax Department, omission of such income can easily trigger mismatch notices during processing.

Incorrect Deduction Claims

Incorrect deduction claims have also become a significant compliance concern. Some taxpayers claim deductions under Section 80C, medical insurance deductions, or HRA exemptions without proper supporting documents or eligibility. Others mistakenly claim deductions under incorrect sections. With the increasing use of data analytics and automated verification systems by the department, unsupported or incorrect claims may invite scrutiny or reassessment proceedings.

Wrong Selection of Tax Regime

Many taxpayers make the mistake of selecting the tax regime without proper comparison. The new tax regime may appear beneficial due to lower tax rates, but it removes several commonly used deductions and exemptions. In many situations, taxpayers choose the new regime without calculating the actual impact on their final tax liability, resulting in higher taxes and lower refunds.

Errors in Capital Gains Reporting

Capital gains reporting has become another complicated area where mistakes frequently occur. Taxpayers often fail to report mutual fund redemptions, stock market transactions, or property sales correctly. Errors in purchase price, indexed cost calculations, grandfathering provisions, and loss set-off are very common. Since broker statements, AIS data, and taxpayer calculations may differ, improper reporting can easily lead to notices or reassessment queries.

TDS Mismatch Issues

TDS-related mistakes also create practical difficulties during return processing. Taxpayers sometimes claim TDS that has not yet appeared in Form 26AS or claim credit against incorrect entries. In some cases, deductors may have filed incorrect PAN details or delayed TDS returns. These mismatches often result in reduced refunds or tax demand notices even when tax has already been deducted.

Failure to Verify the Return

Another simple but serious mistake is failing to verify the return after filing. Many taxpayers believe that submitting the return online completes the filing process, whereas verification through Aadhaar OTP, net banking, or other prescribed methods is equally important. An unverified return may eventually become invalid if not verified within the specified time limit.

Incorrect Bank Account Details

Incorrect bank account details are another frequent reason behind refund failures. Taxpayers sometimes mention inactive bank accounts, incorrect account numbers, or wrong IFSC codes while filing the return. Even after successful processing of the return, refunds may fail because of these banking errors, causing unnecessary delays and follow-up procedures.

Incorrect Reporting of Business Turnover

Small businesses and freelancers also face issues while reporting turnover and professional receipts. Differences between GST returns, books of accounts, and income reported in ITR often create compliance risks. Inconsistent turnover reporting may attract scrutiny notices or defective return communications from the department.

Non-Disclosure of Foreign Assets and Income

Taxpayers holding foreign assets or foreign income frequently miss disclosure requirements as well. Foreign shares, overseas bank accounts, foreign ESOPs, or income from foreign investments require proper disclosure in the prescribed schedules. Non-disclosure of foreign assets is treated seriously under tax laws and may lead to significant compliance consequences.

Last-Minute Filing Errors

One of the biggest reasons behind filing mistakes is last-minute filing near the due date. Rushed filing increases the chances of missing income, selecting incorrect schedules, entering wrong details, or overlooking reconciliation issues. Taxpayers also lose sufficient time for reviewing AIS entries, broker statements, and deduction documents properly.

Conclusion

In today’s compliance environment, ITR filing is no longer a basic formality. The Income Tax Department now receives extensive financial information from banks, employers, brokers, mutual funds, registrars, and other reporting entities. Therefore, careful reconciliation and accurate reporting have become extremely important. A properly reviewed return not only helps avoid notices and refund delays but also reduces future litigation and compliance burden for taxpayers.

Frequently Asked Questions (FAQ)

What are the most common mistakes while filing ITR?

The frequent ones are choosing the wrong ITR form, not reconciling income with your AIS and Form 26AS, missing interest or other income, selecting the wrong tax regime, claiming ineligible deductions, and forgetting to e-verify the return after submission.

What happens if I choose the wrong ITR form?

Filing with the wrong form, for example using ITR-1 when you have capital gains, foreign income, or more than one house property, can make your return defective. You may receive a notice under Section 139(9) and have to file a corrected return.

Why is it important to match my ITR with AIS and Form 26AS?

Your AIS and Form 26AS show the income and TDS already reported to the department. If your return does not match them, it can trigger a mismatch, delay your refund, or invite scrutiny, so reconcile them before filing.

Is filing the return enough, or do I need to verify it?

Filing alone is not enough. You must verify the return, usually by e-verification, within the allowed time. An unverified return is treated as not filed, which can attract late-filing consequences.