Income Tax Notice Under Section 143(1): Meaning, Reasons & What to Do

The Income Tax Department’s email can make anyone nervous. Most people think they have done something wrong. That is not always the case.

 

When a taxpayer files his Income Tax Return ( ITR ), most of the time he gets a communication from the Income Tax Department. This communication is called Income Tax Notice Under Section 143(1). In many cases it is just an indication that your return has been processed. But there are occasions when it flags differences in the calculation of taxes, deductions, or income reported.

 

Knowing the truth of this notice can prevent you from needless stress. It also helps you to take the right action before a small problem becomes a bigger one.

 

Here’s how this notice works and what to do if it shows up in your inbox.

What Is an Income Tax Notice Under Section 143(1)?

An Income Tax Notice under Section 143(1) is a communication sent to you from the Income Tax Department once they have processed your Income Tax Return. They compare the details entered in your return with the details in their records.

It is not a scrutiny notice.

It only serves as a summary of how the department has calculated things and whether your return is accepted as filed or if there are any changes done.

You may receive any of the following:

• No discrepancies found between your return and departmental records.
• The department has concluded that you have paid excess tax and are due a refund.
• The department has concluded that additional tax needs to be paid based on some adjustments.

Don't worry then! Just read through it first.

Why Do You Receive an Income Tax Notice Under Section 143(1)?

A large number of taxpayers assume that getting an income tax notice implies making a big mistake. But that’s not always the case.

The notice is automatically sent out when the CPC processes your Income Tax Return and matches it against the information held in its database.

Notice issuance might be because of the following reasons:

• Mismatch between ITR and Form 26AS
• Discrepancy in AIS details
• Wrong tax computation
• Wrong deductions claimed
• TDS mismatch
• Mistakes in reporting income
• Calculation errors
• Invalid exemptions claimed

Sometimes it can be due to a small data entry mistake.

Types of Adjustments Mentioned in Section 143(1)

Not every adjustment has the same impact. The notice clearly explains what has changed.

 No Demand and No Refund

This is the best outcome.

The Income Tax Department accepts your return exactly as you filed it. No additional tax is payable, and no refund is due.

Refund Determined

Good news.

If you have paid more tax than required, the department processes your refund after verification. The notice will mention the refund amount along with the revised tax calculation.

Tax Demand Raised

Sometimes, the department recalculates your taxable income.

This usually happens because certain deductions were not accepted, tax credits did not match official records, or reported income differed from available information. In such cases, the notice specifies the amount payable.

Common Reasons Behind Tax Mismatch

The major problems arise when there is a mismatch between the details provided by different sources and your returns.

Below are the major causes.

Incorrect Income Reporting

There are those people who report their salaries but forget any income from interest on bank, deposits, rents, or even any other source of income.

Mismatch in TDS Details

Your employer or bank may have deducted tax, but if it isn't reflected correctly in Form 26AS, the department may not allow the credit immediately.

Always verify TDS details before filing your return.

Wrong Deduction Claims

Claiming deductions without proper eligibility is another common reason.

For example, claiming deductions under Chapter VI-A without supporting investments or entering incorrect amounts can result in disallowance.

Errors in Tax Calculation

Mistakes happen.

Incorrect tax computation, wrong surcharge calculation, or inaccurate cess calculation may lead the department to revise your tax liability automatically.

How to Read an Income Tax Notice Under Section 143(1)

The notice consists of various portions, but there is no need to be scared.

Firstly, verify the following details:

• Your PAN number and Assessment Year
• Acknowledgement number of your ITR
• Income shown by you
• Income calculated by the department
• Amount of tax paid
• If a refund is due or a demand for amount
• Cause for the adjustment made

Compare each figure with the copy of your filed Income Tax Return.

What Should You Do After Receiving an Income Tax Notice Under Section 143(1)?

Receiving an Income Tax Notice Under Section 143(1) doesn't always mean you need to take immediate action. Your next step depends on what the notice says.

Here's how you should deal with it.

If There Is No Difference

If the income, tax liability, and refund shown in the notice match your filed return, you don't have to do anything.

Keep a copy of the notice for your records.

That's all.

If a Refund Is Mentioned

If the notice confirms a refund, check whether your bank account has been pre-validated on the Income Tax e-filing portal.

The refund is generally credited after successful verification. If there's a delay, you can track its status through the e-filing portal.

If Additional Tax Is Payable

Read the reason behind the demand carefully.

Compare the figures mentioned in the notice with your Income Tax Return, Form 26AS, Annual Information Statement (AIS), and Taxpayer Information Summary (TIS). If the department's calculation is correct, pay the outstanding tax within the prescribed time.

Ignoring the notice can lead to interest on the unpaid amount.

If You Think the Notice Is Incorrect

Sometimes, the adjustment may be based on incomplete information or a genuine mismatch.

If you disagree, review all supporting documents first. Then submit an online response through the Income Tax e-filing portal with the necessary evidence. Responding on time helps prevent further proceedings.

Time Limit for Issuing a Section 143(1) Intimation

This notice has no indefinite validity.

As per the Income-tax Act, an Income Tax Notice under Section 143(1) is normally given within nine months after the close of the financial year for which the return is filed.

For instance, if you file your return during Financial Year 2025-26, then you would normally receive the intimation within the prescribed statutory time limit in respect of that financial year.

Failure to receive any such intimation does not automatically imply that your return has been rejected. Sometimes, the reason behind the failure to receive an intimation notice might be simply the processing of the return without adjustment.

Can You Challenge an Adjustment?

Yes, of course.

In case you think there is something wrong with the adjustment, do not neglect or underestimate it.

follow these steps:

• Carefully read the notice.
• Match all the numbers with the filed returns.
• Check Form 26AS, AIS, and TIS.
• Gather supporting evidence for your case.
• Submit an online response via the Income Tax e-filing website.

How to Avoid Receiving an Income Tax Notice Under Section 143(1)

Many notices are a part of the routine process, many notices can actually be prevented by filing your tax return properly.

Here are some easy steps to do that:

• Check Form 26AS before filing ITR.
• Match your income with AIS.
• Report your income, including interest income from banks and FDs.
• Claim deductions only if you are entitled to them.
• Recheck your TDS information.
• Calculate taxes before filing.
• Submit your ITR before the deadline.
• Make sure you keep your proof of investments and other documents safe.

Just a little time spent on verifying can prevent lots of work in future.

When Should You Get Professional Assistance?

Not every notice requires expert assistance.

However, you should consult a tax professional if:

• A large tax demand has been raised.
• You don't understand the adjustment.
• Your deductions have been disallowed.
• There are repeated notices from the department.

Conclusion

Not all Income Tax Notices issued under Section 143(1) indicate a tax problem. Analyse the notice to see whether it requires an adjustment and act on it if it does. In case you require professional assistance,

BK Taxlaw LLP is available to guide you through the entire process.

FAQs

1. Is Section 143(1) Income Tax Notice a scrutiny notice?

No, it is just an intimation issued after processing of your Income Tax Return.

2. Am I required to respond to every Section 143(1) notice?

No, only reply if there is a tax demand or if you disagree with the adjustment.

3. Can I get a refund through Section 143(1) intimation?

Yes, the notice may indicate the amount of refund if you have overpaid tax.

4. What if I do not reply to the Income Tax Notice Under Section 143(1)?

Failure to comply with a valid tax demand may result in interest, penalties or recovery action.