The Income Tax Department processes more than nine crore individual returns each year, and an increasing share of automated mismatch notices trace back to a single root cause: a deductor’s TDS return that never matched what landed in the taxpayer’s hands. Catching it before you file is almost always cheaper than answering for it afterwards.
Filing your income tax return requires reconciling multiple documents such as salary slips, bank statements, investment records, and Form 26AS. When these do not align, it can lead to confusion, delays, or even notices from the tax authorities.
Form 26AS acts as your tax credit statement and reflects TDS and TCS details linked to your PAN, along with certain tax payment records. For a broader view of tax payments and reported financial transactions, you should also review the Annual Information Statement (AIS), which now carries much of this additional information.
A mismatch between Form 26AS and your own records is not unusual. However, it is important to resolve it before filing your return.
Understanding the source of the discrepancy helps you fix it correctly.
Some mismatches arise directly within Form 26AS, while others are identified when comparing it with related statements such as AIS.
If your employer has deducted TDS from your salary but has not deposited it with the government within the reporting cycle, the amount may not reflect in Form 26AS for that period. This is a common reason for temporary mismatches.
If your employer, bank, or any deductor has quoted an incorrect PAN while filing their TDS return, the tax deducted will not appear in your Form 26AS. This can happen even if the tax has been deducted and deposited.
If TDS has been deducted on interest income, such as on fixed deposits and in some cases other bank interest entries, it should appear in your tax records. If the bank has not correctly filed or updated its TDS return, the entry may not reflect in Form 26AS.
Taxes paid directly by you may take some time to be reflected. In some cases, errors in challan details such as an incorrect PAN or assessment year can prevent the payment from appearing correctly.
Financial institutions report specified high-value transactions against your PAN, which are reflected in the Annual Information Statement (AIS). In some cases, entries may appear incorrectly due to reporting errors, duplication, or incorrect PAN mapping. These discrepancies may not affect Form 26AS directly but still need to be reviewed and corrected.
Step 1: Identify the exact mismatch
Compare your Form 26AS with salary slips, TDS certificates such as Form 16 or Form 16A, and tax payment challans. Identify whether the mismatch relates to the amount, deductor details, or the financial year.
Step 2: Contact the deductor
If TDS is missing or incorrect, reach out to your employer, bank, or the relevant deductor. They will need to file a revised TDS return or correction statement. Once processed, the updated details will reflect in Form 26AS.
Step 3: Verify challan details for tax payments
For advance tax or self-assessment tax, verify the challan details on the income tax e-Filing system. If key details such as the assessment year, PAN, or tax head were entered incorrectly, a challan correction request can be initiated through the bank or the authorised portal.
Step 4: Review the Annual Information Statement
Form 26AS is now complemented by the Annual Information Statement, which provides a more detailed view of financial transactions. If you notice incorrect information in the AIS, you can submit feedback or dispute the entry directly on the income tax portal.
Step 5: File your return based on accurate records
If the discrepancy is not resolved before the filing deadline, file your return based on your actual income and taxes paid. Ensure that your reporting is accurate and supported by documentation. This reduces the likelihood of discrepancies if the tax department raises a query later.
A few simple practices can help reduce the chances of discrepancies:
If you are evaluating your tax liability before filing, using an income tax calculator can help estimate your payable taxes based on your income, deductions, and tax regime. This makes it easier to cross-check your numbers before submission.
Mismatches in Form 26AS are manageable when identified early and handled systematically. The key is to reconcile your records well before the filing deadline so that you have sufficient time to coordinate with deductors and complete any required corrections.
Open Form 26AS through the e-Filing portal and pull the latest Form 16 from your employer. Compare three things in order: the employer’s TAN, the total TDS deducted for the financial year, and the breakdown by quarter. The two should agree to the rupee. If they don’t, the most likely cause is a delayed or incorrect quarterly TDS return from the employer. Note the gap, email the employer’s payroll team with both documents attached, and ask for the revised TDS return timeline. Allow two to six weeks for the correction to appear in Form 26AS. Keep the email trail in case you need to evidence the pending correction at filing time.
If you claim TDS credit that is not yet recorded in Form 26AS, the Centralised Processing Centre will usually adjust the credit downward when processing your return, which creates a demand for the difference plus interest. If you under-report income that the AIS has captured from a third party, you can expect an intimation under section 143(1) or a notice for proposed adjustment. The safer route is to file based on what Form 26AS and the AIS show on the day you file, keep documentation of any pending deductor corrections, and submit a revised return once the corrections flow through. A revised return is administratively straightforward; a notice is not.
A revised TDS return filed by a deductor typically takes two to six weeks to post against your PAN in Form 26AS, depending on when in the quarterly cycle the revised statement is filed and how quickly TRACES processes it. Q4 corrections often run on the longer end of that window because the volume of filings is higher in the months immediately following the financial year close. If a deductor confirms in writing that the revised return has been filed but the entry still does not appear after six weeks, ask the deductor to share the TRACES acknowledgement and the date of processing, and escalate to their nodal officer if needed.
Form 26AS is your consolidated tax credit statement. It records TDS and TCS amounts deducted against your PAN, along with advance tax, self-assessment tax, and refunds. The Annual Information Statement is broader: it captures a wider set of financial transactions reported to the department by banks, mutual funds, registrars, depositories, property registrars, and other institutions. The AIS includes interest income, dividends, mutual fund transactions, securities transactions, and certain high-value spends. When you file, you reconcile against both. Tax credits flow from Form 26AS. Income reporting is cross-checked against the AIS. A discrepancy in either statement deserves attention before the return is submitted.
File the challan correction as soon as you spot the error, ideally within the first seven days when the bank can still amend the challan on its side. After the bank’s window closes, the correction request moves to the assessing officer through the e-Filing portal, and the timeline lengthens significantly. The most commonly mis-entered fields are the assessment year, the PAN, and the major head, particularly when a self-assessment payment is logged as advance tax or the other way around. Pull the challan PDF, identify the wrong field, submit the correction with supporting documents, and save the acknowledgement. Confirm the corrected entry appears in Form 26AS before you file the return for that year.
