Form 16 vs Form 26AS: How to Spot and Fix Mismatch Before Filing Your Tax Return

What is Form 16 and Form 26AS?

Form 16

Form 16 is issued under section 203 of the Income Tax Act. It is a TDS certificate issued by the employer to the employee as proof of deducting TDS from their salary. This form contains the PAN and TAN details of the employee. It also provides the salary breakup, exempted allowances, and deductions.

Form 26AS

Form 26AS is a statement issued by the Income Tax Department containing all the information about the TDS deducted and the TCS collected. It also includes the data about the tax credit and income sources. This statement allows the Income Tax Authorities to monitor the transactions that are linked to the assessee’s PAN details.

What is the Difference Between Form 16 and Form 26AS?

While Form 16 and Form 26AS are both TDS statements, there is a notable difference between both. The table below lists the major differences between Form 16 and Form 26AS -

Why is it Important to Rectify Mismatches?

• If your TDS or Form 26AS is not updated, you cannot use the data pre-fill facility. Tax2win’s AI enabled Self filing software pre-fills most of the data using the Taxpayer’s PAN details, thus reducing manual effort. In order to use this facility, it is important to update your Form 26AS.
• If there is a mismatch in Form 16 and Form 26AS, the Income Tax return will be rejected. The taxpayers will be required to respond to the Income Tax notice online and explain the reasons.
• It may also result in a delay in the processing of returns and tax refunds. Therefore, rectifying the mismatches can help taxpayers file their ITR without any hassle.
• If the TDS already deducted is not reflected in your Form 26AS, then the TDS refund might not be processed.

What are the Reasons for Mismatches Between TDS Statement and Form 26AS?

There are various reasons for a mismatch between the Form 26AS and Form 16. Given below are some common reasons for a mismatch in the TDS statement and Form 16 -

• When the deductor fails to deposit TDS on time
• If an incorrect amount is entered in the TDS return
• If the Incorrect PAN is quoted in the TDS return
• When there is a mistake in the CIN (Challan identification number)
• When the PAN/TAN of the deductor is entered wrongly
• When there is a mistake in the chosen Assessment year
• Omissions in the TDS return
• Incomplete details of the assessee in the TDS return
• Mismatch in the TDS entered and the actual TDS deducted

How to Resolve TDS Mismatch?

Once you have identified the error after comparing the forms, you must do the following to resolve the mismatch -

• Inform the person responsible for deducting TDS from your income, i.e, the employer or the deductor of TDS.
• If the mismatch is due to an error made by your employer, it will be easier for them to correct it. Therefore, you must connect with your employer if you find any such mismatch.
• The employer must file a revised TDS return. Make sure the details are correct in the revised TDS return.
• If you have received a notice from the Income Tax Department about the tax credit mismatch, you can respond to it online through the income tax e-filing portal by mentioning the reason for such a mismatch.

What Happens if You Don’t Resolve the Form 16 and Form 26AS Mismatch?

If the taxpayer’s TDS is deducted and the assessee doesn’t receive an equivalent tax credit, he must make sure that the credit is reflected in Form 26AS. Even if the taxpayer has filed a tax credit in the ITR, they cannot claim a tax refund if it is not reflected in Form 26AS.

The Income Tax department can also issue a demand notice for underpaying taxes. If the taxpayer doesn’t fix the differences between Form 26AS and Form 16. The IT department issues a defective return notice under the Income Tax Act. The taxpayer can respond to this notice on the e-filing portal.

With the ITR filing for FY 2024-25 underway, and people rushing to file their ITR, it is also important to ensure that you file it accurately to avoid any notices and penalties. If you are someone who finds taxes complicated, simply get in touch with our experts, who can help you file your ITR accurately and maximize your TDS refund. Book an eCA now!

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New Income Tax Forms (Effective April 2026)