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8 Common Income Tax Notice Reasons are one of the most searched topics during the ITR filing season, as taxpayers often receive notices due to data mismatches, reporting errors, or undisclosed financial activities. The 8 most common income tax notice reasons in India include a mismatch between your ITR and Form 26AS, income recorded in AIS that was not reported, salary discrepancies after changing jobs, inflated or unsupported deduction claims, large refund claims, high-value financial transactions not backed by declared income, non-disclosure of foreign assets, and unreported cryptocurrency gains. These notices are usually generated by the Income Tax Department’s automated CPC systems rather than manual scrutiny, meaning even a small data inconsistency can trigger a notice.
Income Tax Notice Reasons are often linked to the Income Tax Department’s advanced data-matching systems. Many taxpayers believe the department can only see what they declare in their ITR. That is no longer true. Since AY 2021-22, the department has operated a fully automated data pipeline that ingests financial information from dozens of reporting entities and cross-checks it against your return in real time.
The automated data flow:
Banks / Brokers / Mutual Funds / Registrars / Employers / Crypto Exchanges → Report via Form 61A / Statement of Financial Transactions (SFT) → Income Tax Insight Portal → Annual Information Statement (AIS) + Taxpayer Information Summary (TIS) → CPC Automated Matching Engine → Income Tax Notice issued without any human review
Because this system runs automatically, many income tax notice reasons can be traced to data mismatches, unreported transactions, or inconsistencies detected by the CPC even before any Assessing Officer reviews the case.
AIS is one of the most important sources behind many Income Tax Notice Reasons because it serves as your complete financial transaction ledger for the year. It aggregates data submitted by third-party reporting entities and displays it under your PAN. AIS captures salary, interest income, dividend income, mutual fund transactions, share transactions, property transactions, foreign remittances, rental income, tax payments, and VDA/crypto transactions reported through Section 194S TDS.
Taxpayers can submit feedback on AIS entries through the e-filing portal to flag inaccurate or duplicate data before filing. Reviewing AIS carefully can help prevent common income tax notice reasons arising from mismatches between reported financial information and the income declared in your ITR.
TIS is the deduplicated, category-wise summary derived from AIS. It removes duplicate entries, consolidates income into categories, and generates an “accepted value” after your feedback. Understanding these income tax notice details is important because the TIS accepted value is what pre-fills your ITR and what the CPC compares against your filed figures. Any mismatch between TIS and your return can become one of the common income tax notice reasons identified by the Income Tax Department.
Form 26AS is the official tax credit statement. It records TDS deducted by employers, banks, and others; TCS collected; advance tax paid; and self-assessment tax paid. When a conflict exists between AIS and Form 26AS, Form 26AS takes precedence for tax credit verification.
Income-tax Act 2025 Transition Note: Under the Income-tax Act 2025, Form 26AS is referred to as Form 168 in the new section numbering. No action is required from taxpayers the portal still displays it as Form 26AS.
| Feature | AIS | TIS | Form 26AS |
|---|---|---|---|
| Contains Raw Third-Party Data | Yes | Derived from AIS | No |
| Shows All Financial Transactions | Yes | Category Summary Only | No |
| TDS / TCS / Advance Tax | Yes | Yes | Yes (Primary Record) |
| Used for ITR Pre-Filling | No | Yes | Yes |
| CPC Cross-Verification Priority | Secondary | Secondary | Primary |
| Taxpayer Feedback Allowed | Yes | Reflects AIS Feedback | No |
Under Rule 114E, specified institutions report high-value transactions via Statement of Financial Transactions (SFT). These appear in AIS. If your income cannot plausibly explain these transactions, the return is flagged.
| Transaction Type | Reporting Threshold | Who Reports |
|---|---|---|
| Cash Deposits in Savings Account | ₹10 Lakh in a Financial Year | Banks |
| Cash Deposits / Withdrawals — Current Account | ₹50 Lakh in a Financial Year | Banks |
| Fixed Deposit (FD) Receipts | ₹10 Lakh | Banks / NBFCs |
| Credit Card Payments (Cash Mode) | ₹1 Lakh per Transaction | Banks |
| Credit Card Bill Payment (Any Mode) | ₹10 Lakh in a Year | Banks |
| Mutual Fund Purchases | ₹10 Lakh | AMCs / RTAs |
| Share / Debenture Purchases | ₹10 Lakh | Brokers / Companies |
| Immovable Property Transactions | ₹30 Lakh | Registrar |
| Foreign Currency / Overseas Remittances | ₹10 Lakh | Authorised Dealers |
| Purchase of Bonds / Debentures | ₹10 Lakh | Companies |
| Crypto / VDA Transactions (TDS) | All Transactions Above ₹10,000 | Crypto Exchanges (Section 194S) |
This is the single most common trigger. Every TDS credit claimed in your ITR is automatically verified against Form 26AS by the CPC. If the credit does not appear in Form 26AS, the CPC will reject it and issue a notice.
Common causes: incorrect PAN in TDS return; late TDS filing by employer; data entry error by deductor; job change with TDS under old employer’s details.
How to avoid it: Download Form 26AS at least two weeks before filing. Compare with your Form 16, Form 16A, and bank TDS certificates. Chase missing TDS entries before the filing deadline.
The CPC compares TIS accepted values with your ITR. Income present in TIS but absent from your return triggers a mismatch notice under Section 143(1)(a)(vi).
Frequently missed items: Interest income whether from fixed deposits, savings accounts, recurring deposits, or bonds is one of the most systematically under-reported income categories in India, largely because many taxpayers assume TDS deducted by the bank closes their tax liability. It does not. The bank deducts TDS at 10%, but if your total income pushes you into the 20% or 30% slab, additional tax remains payable. For a complete guide to how TDS on interest works, which thresholds apply bank-by-bank, and how to correctly report it in your ITR, read: Section 194A: TDS on Interest Income Complete Guide
How to avoid it: Open AIS on the e-filing portal. Review every line item. Submit feedback for incorrect entries. Include all correct items in your ITR.
The department combines salary data from all employers and compares it with your ITR. Specific errors: omitting previous employer’s salary; claiming the standard deduction twice; not submitting Form 12B to the new employer.
How to avoid it: Collect Form 16 from every employer. Aggregate all salary in the ITR. Claim standard deduction only once (₹75,000 for FY 2025-26).
Deductions under Sections 80C, 80D, 80G, and HRA are scrutinised — especially when unusually high relative to income. Common errors: claiming 80C without actual investments; HRA without rent receipts; 80G without valid registration numbers.
How to avoid it: Maintain documentary evidence for every deduction claimed. Do not estimate figures.
Large refund claims automatically undergo risk-based assessment. The CPC may hold the refund or issue a notice requiring explanation.
How to avoid it: Ensure every TDS credit has a matching Form 26AS entry. Respond promptly to any 143(1) intimation before the refund is processed.
If your ITR shows modest income but AIS records large property purchases, significant MF investments, or large cash deposits, the CPC flags the inconsistency using an income-adequacy check.
How to avoid it: One legitimate source that frequently explains large transactions without proportionate income is a gift from a close relative — which is completely exempt from tax under Section 56(2)(x). However, the gift must be properly documented with a gift deed and, for cash gifts, must comply with the ₹2 lakh limit under Section 269ST. For a full explanation of which gifts are tax-free, which relatives qualify, and the Gurgaon-specific stamp duty benefit for property gifts, read: Gift Tax in India: Which Gifts Are Tax-Free and How to Save Tax Legally
Resident and Ordinarily Resident taxpayers must disclose all foreign assets in Schedule FA, regardless of income generated. Assets include: foreign bank accounts, US stocks, RSUs, ESOPs, foreign real estate, and signing authority in any foreign account.
Non-disclosure penalty under the Black Money Act: ₹10 lakh per asset.
How to avoid it: Report all foreign assets in Schedule FA, even if no income was earned.
Crypto exchanges deduct 1% TDS under Section 194S of the Income Tax Act on transactions above ₹10,000 and report these to the department. Gains appear in AIS and Form 26AS. Under Section 115BBH, VDA gains are taxed at 30% flat no deductions except cost of acquisition, and no loss set-off against other income.
Common errors: not filling Schedule VDA; calculating gains incorrectly; attempting to set off crypto losses against non-VDA income.
How to avoid it: Export transaction history from every exchange. Calculate gains per asset. Fill Schedule VDA. Verify TDS against Form 26AS.
Salaried Employees: Salary mismatch from multiple employers, HRA without rent receipts, undeclared interest income, Form 26AS TDS mismatch.
Freelancers & Consultants: Bank credits exceed declared receipts, foreign remittance issues, presumptive taxation mismatch.
Business Owners: GST turnover vs ITR income mismatch, large cash deposits, inconsistent profit margins.
Investors: Capital gains not reported, dividend mismatch, large SFT-reported transactions, crypto in Schedule VDA missing.
NRIs: Non-filing despite NRO interest TDS, rental income from Indian property, foreign asset disclosure on return to India.
Crypto Investors: Schedule VDA missing or incomplete, loss set-off attempted, foreign exchange TDS not in Form 26AS.
An income tax notice under Section 139(9) is issued when the ITR is structurally incomplete or contains missing information. Taxpayers must respond within 15 days; otherwise, the return may be treated as not filed.
One of the most common income tax notice details received by taxpayers is the Section 143(1) intimation. It may confirm that the return has been accepted or highlight adjustments. Respond within 30 days if a tax demand is raised.
Among the major income tax notice reasons, selection for scrutiny under Section 143(2) is one of the most important. This notice requires the taxpayer to provide additional information or explanations. For AY 2025-26, it must be issued by 30 June 2026.
An income tax notice Section 142(1) is issued when the department seeks documents, explanations, or even requires the filing of a return. Non-compliance can result in penalties under Section 272A.
An income tax notice Section 148A ITR proceeding generally begins before a reassessment notice is issued under Section 148. These notices apply when the department believes income has escaped assessment. The reassessment period can extend up to 3 years or, in certain cases, up to 10 years.
This notice informs taxpayers that the department intends to adjust a pending refund against an outstanding tax demand. Taxpayers have the right to respond within 30 days before the adjustment is made.
A Section 156 demand notice is issued after an assessment creates a tax liability. Taxpayers must pay the demanded amount within 30 days to avoid further consequences.
| Notice Section | What It Covers | Time Limit |
|---|---|---|
| Section 143(1) | CPC Processing Intimation | Within 9 Months from End of AY |
| Section 143(2) | Scrutiny Selection | Within 3 Months from End of FY of Filing |
| Section 142(1) | Pre-Assessment Inquiry | During Assessment Proceedings |
| Section 148 (≤ ₹50 Lakh) | Reassessment — Smaller Cases | Up to 3 Years from End of AY |
| Section 148 (> ₹50 Lakh) | Reassessment — Larger Cases | Up to 10 Years from End of AY |
| Section 245 | Refund Adjustment | Before the Refund is Released |
| Section 156 | Demand Notice | After Assessment Completion |
All notices issued after October 2019 are delivered electronically through the e-filing portal. The electronic delivery date is the legally valid service date.
Any notice without a valid DIN is not legally valid. Verify before responding or paying.
TIS is the deduplicated, category-wise summary derived from AIS. It removes duplicate entries, consolidates income into categories, and generates an “accepted value” after your feedback. The TIS accepted value is what pre-fills your ITR and what the CPC compares against your filed figures. Understanding these income tax notice details is essential because mismatches between TIS, AIS, Form 26AS, and your ITR are among the most common income tax notice reasons. Such discrepancies can trigger an income tax notice for salaried employees or an income tax notice for a salaried individual, while significant reporting differences may lead to an income tax notice under Section 142(1) seeking further information or an income tax notice under Section 148A for ITR-related issues where the department suspects income has escaped assessment.
Before filing your ITR, complete each of these steps:
No. Ignoring a notice leads to best judgement assessment under Section 144, penalties, interest, and possible prosecution. Always respond within the deadline.
Yes. Salary income mismatches frequently trigger scrutiny.
DIN is the Document Identification Number used to verify authenticity.
Yes. AIS mismatches are among the most common notice triggers.
In many cases, taxpayers can respond, rectify, or revise information depending on the notice type.
A Section 143(2) scrutiny notice must be issued within 3 months from the end of the financial year in which the return was filed. For AY 2025-26, the deadline is 30 June 2026.
Log in to incometax.gov.in → Pending Actions → e-Proceedings. All pending notices appear here. Use the “Verify Notice/Order” tool to verify authenticity by DIN without logging in.
For escaped income up to ₹50 lakh: up to 3 years from end of AY. For escaped income above ₹50 lakh: up to 10 years.
TIS is the deduplicated, category-wise summary derived from AIS. It removes duplicate entries, consolidates income into categories, and generates an “accepted value” after your feedback. The TIS accepted value is what pre-fills your ITR and what the CPC compares against your filed figures. Understanding these income tax notice details is essential because mismatches between TIS, AIS, Form 26AS, and your ITR are among the most common income tax notice reasons. Such discrepancies can trigger an income tax notice for salaried employees or an income tax notice for a salaried individual, while significant reporting differences may lead to an income tax notice under Section 142(1) seeking further information or an income tax notice under Section 148A for ITR-related issues where the department suspects income has escaped assessment.
Income tax notices in India today are generated by automated systems. The CPC and Insight Portal ingest data from banks, employers, brokers, mutual fund companies, crypto exchanges, and registrars. Every transaction above a reporting threshold appears in your AIS. Every TDS credit is checked against Form 26AS. Any gap between these sources and your ITR can generate a notice without any human reviewing your case.
The most effective defence is a disciplined pre-filing reconciliation routine: download AIS and TIS, check every income item, verify every tax credit in Form 26AS, and document the source of any large transaction. Taxpayers who make this an annual habit are significantly less likely to receive notices and far better prepared to respond when one arrives.