ITR Deadline Gone: How Minor Mismatches Can Trigger Tax Notices and What You Must Do

Sep 18, 2025

—

The income tax filing deadline has passed for most taxpayers, and the relief of having filed your return may already be settling in. However, the process doesn’t end there. Even after submission, minor mismatches between what you declare in your Income Tax Return (ITR) and the data recorded by authorities can trigger notices, queries, or adjustments. Understanding these potential pitfalls and knowing how to prevent them is essential for staying compliant and avoiding unnecessary stress.

In this article, we will discuss common mismatches, why they occur, the possible consequences, and steps you can take to ensure your ITR is error-free.

Understanding the Importance of Accurate ITR Filing

Filing your ITR on time is crucial, but accuracy is equally important. The tax system in India has become highly data-driven, relying on information collected from banks, employers, mutual funds, and other financial institutions. This data is reflected in various statements, such as Form 26AS and the Annual Information Statement (AIS), and is cross-checked with the taxpayer’s declared income.

Even small discrepancies—like a few hundred rupees of interest income from a fixed deposit or a mismatch in TDS credits—can result in automated notices or inquiries from the tax department. These notices are usually easy to resolve if addressed promptly, but ignoring them can lead to penalties or interest charges.

Common Causes of Mismatches

Type of Mismatch	How It Happens	Possible Consequence
Interest Income Not Declared	Small amounts from savings accounts or fixed deposits are sometimes omitted.	Notices under section 143(1) or demand for tax, along with interest charges.
Mismatch in TDS or TCS	Employers, banks, or other deductors may report TDS incorrectly or with delays.	Notice for under-reporting of tax or requirement to reconcile TDS credits.
Capital Gains Discrepancies	Errors in reporting purchase cost, corporate actions, or dividend reinvestments.	Inflated or understated gains may lead to notices or recalculations.
Rental Income Errors	TDS deducted by tenants or mismatched reporting of rental income.	Notices or demand for additional tax.
Interest on Refunds Not Declared	Interest credited along with previous refunds is taxable.	May trigger notices or result in additional tax demand.
Other Minor Incomes	Any income captured in AIS but omitted in the ITR, such as small brokerage gains or rewards.	Even small mismatches can lead to automated queries.

Consequences of Late Filing or Errors

Failing to file on time or reporting inaccurate information can have financial and legal implications:

Late Filing Fees: Under Section 234F, late filing penalties are applicable if returns are submitted after the due date.
Interest on Tax: Interest may be charged on unpaid or shortfall amounts.
Automated Notices: Minor mismatches can trigger electronic notices requiring clarification or adjustment.
Reassessment Risks: Unresolved discrepancies may escalate into detailed scrutiny or reassessment.

How to Avoid Notices and Errors

Proactive measures can prevent discrepancies and reduce the likelihood of receiving notices:

Cross-Check AIS and Form 26AS: Ensure every entry—interest, dividends, TDS, capital gains—is accurately reflected in your return.
Include All Income: Even small amounts matter. Always report interest from deposits, rewards, or other minor incomes.
Correct TDS and TCS Credits: Verify that credits claimed in your ITR match the records in Form 26AS.
Choose the Correct ITR Form: Selecting the wrong form may result in a defective return notice.
Keep Documentation Ready: Maintain bank statements, investment proofs, and other financial documents in case of queries.
Respond Promptly to Notices: Address notices immediately via the e-filing portal or through a tax professional.

Checklist to Ensure Error-Free Filing

Step	Action
1	Reconcile all income with AIS/Form 26AS before filing.
2	Verify all TDS/TCS details and claim correctly.
3	Report all interest income, dividends, and minor earnings.
4	Select the correct ITR form based on income type.
5	Retain all supporting documents for future reference.
6	Submit the return before the extended deadline to avoid penalties.
7	Monitor the tax portal for any post-filing notices.
8	Respond promptly to any automated queries or notices.

Practical Tips Post-Deadline

Even after filing, it’s important to remain vigilant:

Regularly check your e-filing account for notices.
Keep updated records of all income and tax deductions.
Correct errors immediately using the rectification or revised ITR process if allowed.
Stay informed about your bank’s reporting timelines and ensure all TDS credits are reflected.
Avoid assumptions: small amounts, even if seemingly insignificant, can trigger automated mismatches.

Conclusion

The ITR filing process is not just about meeting deadlines; it is also about ensuring accuracy and alignment with data reported by various financial institutions. Even after filing, minor mismatches can trigger notices, which can be easily avoided by reconciling your income, TDS, and other financial records. Taking a proactive approach helps prevent penalties, interest, and unnecessary stress.

Timely and accurate filing, along with careful cross-checking of AIS and Form 26AS, ensures compliance and a smoother tax experience. Remember, small errors today can lead to bigger complications tomorrow, so diligence is key.

Disclaimer: The information provided in this article is based on current tax regulations and practices at the time of writing and is for general informational purposes only. Readers should consult a qualified tax professional or the official tax portal for personalized guidance. The author is not responsible for any financial decisions made based on this article.