AIS/TIS Mismatch in ITR: How to Correct Data & Reduce Tax Notice Risk (AY 2026-27)

Direct answer

If your Annual Information Statement (AIS) or Taxpayer Information Summary (TIS) does not match your books, bank records or actual taxable income for FY 2025-26 / AY 2026-27, do not mechanically force the income-tax return to match an incorrect information statement. First reconcile the item, identify the reporting source, submit AIS feedback where the information is wrong or duplicated, preserve supporting documents, and file the return on the basis of the correct legal and factual position. The Income Tax Department itself states that AIS may not contain every transaction and that taxpayers remain responsible for reporting complete and accurate information in the return.

Why AIS/TIS mismatches matter more in AY 2026-27

AIS is no longer just a TDS statement. The Department’s current guidance describes it as a broader tax-information view containing TDS/TCS, specified financial transactions, tax payments, refunds, GST information, foreign-remittance information and other reported financial data. This makes AIS reconciliation an important pre-filing control for individuals, professionals and businesses.

The practical risk is not that every difference automatically creates a tax demand. The risk is that an unexplained difference can look inconsistent when the Department compares the return with information already available in its systems. The Department’s own AIS material states that the information is used to improve pre-filling and compliance, and official guidance also notes its relevance to scrutiny and e-Verification.

AIS vs TIS vs Form 26AS: what is the difference?

• AIS is the transaction-level information statement. It can show reported values and modified values after taxpayer feedback or source confirmation.

• TIS is an aggregated category-wise summary derived from AIS. It shows processed values and values accepted by the taxpayer or confirmed by the source, and may be used for pre-filling where applicable.

• Form 26AS is narrower and is primarily a tax-credit statement containing TDS/TCS-related information. AIS contains a wider set of financial data.

For a broader explanation of the Department’s data-matching ecosystem, read How the Income Tax Department Uses AI and Data Analytics to Detect Tax Evasion in India. For the basic AIS/TIS architecture, see Annual Information Statement (AIS) & Taxpayer Information Summary (TIS).

Common AIS/TIS mismatches professionals should investigate

1. Interest income does not match the books or bank certificate

Bank-reported interest may reflect gross interest, accrued interest, a joint holding, an incorrect PAN mapping, or a period different from the taxpayer’s accounting treatment. Reconcile bank-wise and account-wise rather than making one top-level adjustment.

2. Securities or mutual-fund transactions appear duplicated

SFT information may be received from more than one reporting source or may require transaction-level interpretation. Check folio, demat account, date, gross consideration and whether the same transaction has been reported through multiple channels.

3. Property transaction value differs from the taxpayer’s computation

AIS may show reported consideration or registration-related values. The tax return, however, must reflect the correct tax computation after applying the relevant capital-gains provisions, cost rules, exemptions and other statutory adjustments.

4. GST turnover differs from income-tax turnover

The Income Tax Department’s AIS FAQ confirms that GST turnover may appear in AIS. A difference from financial-statement turnover is not automatically wrong: credit notes, advances, exempt supplies, branch transactions, unbilled revenue, timing differences and tax-exclusive accounting can all create legitimate differences. The reconciliation should explain the bridge, not merely compare two totals.

5. Foreign remittance or overseas information does not match the return

AIS can include information relating to foreign remittances and information received from other sources. Where the taxpayer has overseas investments, foreign bank accounts, ESOPs or foreign income, reconcile the transaction with residential status, Schedule FA requirements and the applicable DTAA/taxability position before filing.

Seven-step AIS reconciliation workflow before filing the ITR

• Download AIS and TIS for FY 2025-26 and keep a dated copy in the tax file.

• Export transaction-level details in CSV/JSON where necessary instead of relying only on the summary screen.

• Map each material information category to the underlying ledger, bank statement, broker statement, GST return, Form 16/16A, property document or remittance record.

• Classify every difference as timing, duplication, incorrect source reporting, accounting presentation, non-taxable item, or genuine omitted income.

• Submit AIS feedback when the source information is factually incorrect, duplicated, belongs to another person, or otherwise requires correction.

• Retain the AIS feedback acknowledgement and supporting evidence. Do not assume that submitting feedback by itself settles the tax treatment.

• Run a final return-to-AIS/TIS reconciliation immediately before filing and document every material unresolved difference.

Worked example: AIS shows ₹9.80 lakh interest but books show ₹7.20 lakh

Assume a professional taxpayer’s AIS shows ₹9.80 lakh of interest income, while the bank certificates and books support only ₹7.20 lakh. The correct response is not to add ₹2.60 lakh to the return merely to eliminate the mismatch. The adviser should first identify which bank/source reported the extra amount, test whether the figure is duplicate or relates to another period/account holder, submit appropriate AIS feedback if the reporting is incorrect, retain the bank certificate and reconciliation, and then report the legally correct income in the ITR.

If the investigation instead shows that ₹2.60 lakh was genuinely earned but omitted from the books, the appropriate response is to correct the computation and report the income. AIS reconciliation should improve accuracy; it should not become a method of overriding facts.

When should you submit AIS feedback?

AIS feedback is appropriate where the displayed information itself is inaccurate—for example, a duplicate entry, wrong amount, transaction belonging to another person, or other source-level reporting error. The Department’s AIS help material confirms that taxpayers can provide feedback on active TDS/TCS, SFT and other information, and that AIS thereafter shows both the reported and modified values.

However, feedback is not a substitute for a tax position. A transaction can be factually reported correctly in AIS but still require a different taxable amount after applying exemptions, deductions, cost rules, DTAA provisions or accounting principles. That distinction should be documented in the computation working papers.

What documents should a business or professional keep?

• Downloaded AIS, TIS and Form 26AS copies used for filing.

• AIS transaction-level CSV/JSON where the summary is insufficient.

• Bank interest certificates and bank statements.

• Broker, demat and mutual-fund capital-gains statements.

• GST turnover reconciliation and return extracts.

• Property purchase/sale documents and valuation records.

• Foreign-remittance and foreign-asset support where relevant.

• AIS feedback acknowledgements and source correspondence.

• A final written AIS-to-ITR reconciliation for material differences.

How AIS fits into income-tax data analytics

The useful way to think about AIS is as one input in a larger compliance-data environment. The Department receives data from deductors, banks, registrars, financial institutions, GST systems and other reporting entities. A return that is internally consistent and supported by a documented reconciliation is easier to defend than one prepared by simply copying pre-filled figures or ignoring known differences.

For businesses, this makes year-end data governance important. Finance teams should reconcile PAN-linked information before the return is filed, rather than first discovering the mismatch after an e-Verification communication, scrutiny query or other compliance follow-up.

Frequently asked questions

Should my ITR always exactly match AIS?

No. The Income Tax Department states that AIS contains information presently available with it and may not display every taxpayer transaction. The taxpayer is still responsible for reporting complete and accurate information in the return. Material differences should be reconciled and documented.

Does submitting AIS feedback automatically change my tax liability?

No. Feedback changes or annotates the information trail in AIS/TIS, but the taxpayer must independently determine the correct taxable income under the law.

Can GST turnover in AIS differ from financial-statement turnover?

Yes. Timing, credit notes, advances, exempt supplies, branch transactions and accounting presentation can create valid differences. The difference should be reconciled item-by-item and supported.

What if AIS shows income I genuinely forgot to record?

Correct the computation and report the income if it is taxable. AIS reconciliation should identify omissions as well as incorrect third-party reporting.

Can AIS feedback be revised?

The Department’s AIS FAQ states that there is currently no limit on the number of times previously submitted feedback can be modified.

Primary sources

Income Tax Department — AIS Help Centre and FAQs.

Income Tax Department — Annual Information Statement guidance updated in 2026.

How PGT & Associates can help

PGT & Associates assists businesses, professionals and individual taxpayers with AIS/TIS reconciliation, income-tax return review, GST-to-income-tax turnover reconciliation, foreign-asset reporting and responses to tax-data mismatch issues. If a material mismatch needs professional review before filing or responding to the Department, contact PGT & Associates for a documented, transaction-level analysis.

Disclaimer: This article is for general professional information and does not constitute legal or tax advice. Tax treatment depends on the facts, applicable law, reporting period and supporting documentation of each case.