Income Tax Return Filing: Mistakes to Avoid And Documents Needed

A simple guide to common ITR filing mistakes and the key documents taxpayers should prepare to ensure correct and hassle-free tax return submission.

Common Mistakes To Avoid

Vanshika verma | Jun 19, 2026 |

Income Tax Return Filing: Mistakes to Avoid And Documents Needed

Income Tax Return Filing: Mistakes to Avoid And Documents Needed

The Income Tax Return (ITR) filing season is in the air. Taxpayers are busy gathering important documents such as salary slips, bank statements, interest and dividend statements.

Everyone wants to file their returns the right way, with all the information and correct information. This is because the Income Tax Department now crosschecks details with sources such as the Annual Information Statement (AIS), Taxpayer Information Summary (TIS), Form 26AS, banks, brokers and other reporting systems.

If you make even small mistakes or miss out on information, you could be left with things like tax notices, delayed refunds or extra scrutiny from the tax office.

That is why it is important to be careful while filing returns and take help from tax professional if needed.

Let’s look at some common income tax mistakes made by people that can lead to financial and legal problems, delayed refunds or notices from the tax department.

Common Mistakes in Filing Taxes and How to Avoid Them

1. Choosing The Wrong ITR Form

Why it matters: Filing wrong ITR form may lead to defective return notice.

2. Failure to Report All Income

Why it matters: Missing income can cause mismatches with tax records.

3. Incorrect capital gains information

Why it matters: Deals involving shares, mutual funds and property are closely monitored and mistakes can be problematic.

4. Not E-Verifying the Return

Why it matters: A return that’s not verified can delay refunds.

5. Ignoring AIS/Form 26AS Differences

Why it matters: Differences could result in verification by the tax department.

6. Foreign Assets Reporting or VDA Reporting Omitted

Why it matters: Not reporting can lead to compliance issues.

Apart from common mistakes, taxpayers should also make sure to gather and review all important documents before filing their Income Tax Return (ITR). Let’s discuss the all important documents:

ITR Document Checklist

Gather all important documents such as bank statements, salary slips, interest certificates from banks, details of stock transactions (short-term and long-term gains), broker statements and any other relevant tax records before you file your return. It’s especially important to double-check big purchases and make sure you’re not spending more on your credit card than you claim your income to be.

If you keep good records and look at everything in advance, you will be less likely to miss important details. It will also make it easier to respond quickly if the tax department asks for some clarification or some additional documents.

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Tags: ITR