As the Income Tax Return (ITR) filing season for 2026 progresses, millions of taxpayers are submitting their returns through the Income Tax Department’s online portal. While the filing process has become more convenient with pre-filled forms and digital verification, even small mistakes can delay the processing of returns and postpone tax refunds.
Tax experts advise taxpayers to review every detail carefully before submitting their ITR. A few extra minutes spent checking the information can help avoid unnecessary delays, notices, or the need to file revised returns later.
One of the most common mistakes is selecting the incorrect ITR form. Different forms are meant for different categories of taxpayers based on their source of income, business activities, and investment profile.
Using the wrong form may result in the return being marked as defective, requiring the taxpayer to correct and resubmit the information. Before filing, individuals should understand which ITR form applies to their income sources and financial situation.
If there is any uncertainty, consulting a qualified tax professional can help avoid unnecessary complications.
Another frequent error is entering incorrect personal information or bank account details. Mistakes in the Permanent Account Number (PAN), Aadhaar number, mobile number, email address, IFSC code, or account number can slow down communication and refund processing.
Tax refunds are credited directly to the validated bank account mentioned in the return. If the account details are incorrect or not properly validated, the refund may be delayed until the issue is resolved.
Carefully reviewing personal details before final submission is an important step in ensuring smooth processing.

The Income Tax Department provides pre-filled information in many sections of the return using data received from employers, banks, and financial institutions. Although this feature makes filing easier, taxpayers should not assume that every detail is complete or error-free.
Salary income, interest earnings, tax deducted at source (TDS), and other financial information should always be compared with Form 16, the Annual Information Statement (AIS), Taxpayer Information Summary (TIS), bank statements, and investment records.
Cross-checking these documents helps identify missing entries or discrepancies before filing.
Many taxpayers accidentally omit income earned from savings accounts, fixed deposits, rental properties, freelance work, dividends, or other investments. Even if tax has already been deducted at source, such income usually needs to be disclosed in the return wherever applicable.
Failure to report all taxable income may result in mismatches during processing, which could trigger notices or delay the refund.
Maintaining proper financial records throughout the year can make complete reporting much easier during the filing season.
Another common reason for delayed processing is claiming deductions or exemptions without proper eligibility or supporting documents. Taxpayers should ensure that deductions under the applicable provisions are claimed only if they meet the required conditions.
Investment proofs, insurance premium receipts, education loan statements, home loan certificates, and donation receipts should be kept safely in case verification is required.
Incorrect claims can lead to adjustments during processing and may affect the refund amount.
Submitting the return is only one part of the filing process. The return must also be verified through the available electronic verification methods or by following the prescribed verification procedure within the specified timeline.
Many taxpayers mistakenly believe that filing alone completes the process. Until the return is successfully verified, it is generally not processed by the Income Tax Department.
Timely verification helps ensure that the return moves forward for assessment and refund processing
Experts recommend reviewing every section of the return before final submission. Checking income details, TDS information, deductions, bank account details, and tax calculations can significantly reduce the chances of errors.
Using the preview option provided in the filing utility allows taxpayers to identify mistakes that may otherwise go unnoticed.
A careful review not only improves accuracy but also helps speed up refund processing.
Filing an Income Tax Return is not just about meeting a legal deadline—it is also about ensuring that the information submitted is complete and accurate. Simple mistakes such as choosing the wrong ITR form, entering incorrect bank details, forgetting additional income, or failing to verify the return can lead to unnecessary delays in receiving a tax refund.




