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Filing an Income Tax Return (ITR) has become much easier in recent years, thanks to digital filing systems, pre-filled data, and online tax records. However, despite the simplified process, thousands of salaried taxpayers continue to make avoidable mistakes that can lead to delayed refunds, additional tax demands, or even notices from the Income Tax Department.

Many taxpayers assume that filing an ITR is simply a matter of copying information from Form 16. Tax experts warn that this approach can create problems because Form 16 often represents only a portion of an individual's overall financial profile.

As the tax department increasingly relies on technology-driven data matching and analytics, even small reporting errors can attract scrutiny. Here are some of the most common mistakes salaried individuals should avoid while filing their returns for Assessment Year 2026-27.

1. Relying Solely on Form 16

One of the biggest misconceptions among salaried employees is that Form 16 contains every detail needed for filing an income tax return.

In reality, Form 16 primarily reflects salary income and tax deducted at source (TDS) by the employer. It does not necessarily include income earned from other sources.

Taxpayers may also have earnings from:

• Savings account interest

• Fixed deposits (FDs)

• Recurring deposits (RDs)

• Dividends

• Rental income

• Capital gains

• Freelancing assignments

• Other investments

If these sources of income are omitted from the return, taxpayers may face tax mismatches and future compliance issues.

2. Failing to Reconcile Form 16, Form 26AS, and AIS

Many taxpayers download Form 16 and immediately proceed with filing their returns without verifying other tax records.

Experts recommend carefully comparing information available in:

• Form 16

• Form 26AS

• Annual Information Statement (AIS)

Form 26AS provides details regarding TDS, TCS, and taxes paid, while AIS offers a much broader picture of income and financial transactions reported to the tax authorities.

Any discrepancy between these documents and the information disclosed in the return can result in refund delays, tax adjustments, or additional tax demands.

Cross-verification is particularly important because AIS data may contain transactions that taxpayers overlook while preparing their returns.

3. Selecting the Wrong ITR Form

Another common error involves choosing an incorrect return form.

Different taxpayers are required to use different ITR forms depending on their income sources and financial activities.

Factors affecting form selection may include:

• Capital gains from investments

• Foreign assets or overseas income

• Multiple house properties

• Business or professional income

• Trading activity in financial markets

Using the wrong form can cause the return to be treated as defective, requiring corrections and additional compliance procedures later.

Taxpayers should carefully review eligibility criteria before selecting an ITR form.

4. Assuming Salary TDS Covers All Tax Liability

Many salaried individuals believe that since their employer has already deducted tax from their salary, no further tax obligations remain.

However, this assumption is not always correct.

Additional income from investments, interest, rent, dividends, or capital gains can increase total taxable income beyond what the employer considered while deducting TDS.

In such situations, taxpayers may need to pay additional taxes separately. If adequate taxes are not paid during the financial year, interest liabilities may arise under applicable tax provisions.

Reviewing total annual income rather than relying solely on salary deductions is essential for accurate tax compliance.

5. Claiming Deductions Without Supporting Documents

Tax-saving deductions remain an important part of income tax planning. However, taxpayers should ensure they possess proper documentation before claiming exemptions or deductions.

Common deductions include:

• Section 80C investments

• Health insurance premiums under Section 80D

• Home loan interest benefits

• House Rent Allowance (HRA) claims

Although supporting documents are generally not uploaded while filing the return, taxpayers must retain them for future reference.

If the Income Tax Department requests verification and adequate evidence is unavailable, the deduction claim may be disallowed, resulting in additional tax, interest, and possible penalties.

Small Errors Can Have Bigger Consequences

Tax experts emphasize that most tax-related complications arise not because of complex laws but because of simple oversights.

Incorrect income reporting, mismatched tax records, wrong form selection, and unsupported deduction claims can all create unnecessary compliance challenges.

As the Income Tax Department strengthens its use of data analytics and automated verification systems, taxpayers should pay greater attention to accuracy while filing returns.

How Salaried Taxpayers Can Avoid Problems

Before submitting an ITR, taxpayers should:

• Verify all sources of income

• Match details with AIS, Form 26AS, and Form 16

• Choose the correct ITR form

• Calculate total tax liability accurately

• Keep supporting documents ready

• Review the return carefully before submission

Taking these precautions can significantly reduce the risk of notices, refund delays, and additional tax demands.

The Bottom Line

Filing an accurate tax return requires more than simply uploading Form 16 data. With increasing digital scrutiny and extensive information available to tax authorities, taxpayers need to ensure that every source of income and deduction is properly reported.

A few extra minutes spent verifying information can help avoid future hassles and ensure a smoother tax filing experience.

Disclaimer: This article is intended for informational purposes only and should not be treated as tax advice. Taxpayers should consult a qualified tax professional regarding their individual tax situation before making filing decisions.

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