An income tax notice is usually the department asking a question, not accusing you of something. Most notices come from a straightforward mismatch between what you filed and what your Form 26AS, AIS, or TDS records show. What actually matters is whether you understand the section it's issued under, gather the right documents, and reply before the window closes. LegalDev's tax practitioners read your notice, reconcile it against your return and AIS, and file a reply that holds up.
This page explains the notice types you're likely to receive in 2026, how the brand-new Income Tax Act, 2025 changes what you'll see on your notice, the exact reply process on the e-filing portal, and what happens if you miss the deadline. If you already have a notice in hand, jump to How to Respond to an Income Tax Notice Online or get in touch directly.
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An income tax notice is a formal communication issued by the Income Tax Department (or, on the portal, by the Centralised Processing Centre) when it finds a discrepancy, an error, a mismatch in tax credit, an undisclosed high-value transaction, or when it simply wants more information before completing your assessment. Notices range in seriousness from a routine processing intimation, which most taxpayers receive every year without any action needed, to a formal show cause notice proposing a tax demand. Getting one does not automatically mean you owe money or did something wrong.
The department's data-matching has become considerably sharper with AIS (Annual Information Statement), TIS, and SFT reporting from banks, employers, and registrars now feeding directly into your tax profile. Common triggers include:
Each notice has its own purpose, its own deadline, and its own required response. This table covers the notices individuals and businesses see most often.
Always check the exact deadline printed on your specific notice. It can vary from the general range shown here depending on the officer and the facts of the case.
This is the single biggest update in Indian direct tax law in over sixty years, and it directly affects how your notice will read. The Income-tax Act, 2025 received Presidential assent on 21 August 2025 and came into force on 1 April 2026, replacing the Income-tax Act, 1961. A few points matter for anyone dealing with a notice right now:
Ignoring an income tax notice carries real consequences. The Assessing Officer can complete the assessment based only on the information already available with the department, usually to your disadvantage, and this can include penalty and, in serious cases, prosecution under the Income Tax Act. A 143(1) demand that goes unanswered stays on your outstanding-demand ledger and can be adjusted against future refunds under Section 245. Missing a 148/148A reassessment deadline removes your chance to object before the case is reopened. In every scenario, replying late costs more time, money, and stress than replying on time would have.
LegalDev's CAs handle income tax notices as a core part of daily practice, not an occasional add-on. When you send us your notice, a practitioner reviews the section, the assessment/tax year, and the deadline the same day, reconciles your ITR against Form 26AS and AIS, and drafts a reply built around your specific facts. We handle processing intimations (143(1)), defective return notices (139(9)), scrutiny and reassessment matters (142(1), 143(2), 148A, 148), demand notices (156), and refund-adjustment queries (245), and we file the response through the e-filing portal once you've approved it.
If you found this useful, these related pages go deeper on specific pieces of income tax and GST compliance:
An income tax notice is a formal communication from the Income Tax Department, issued when there's a discrepancy, an error, a tax credit mismatch, an undisclosed high-value transaction, or a need for clarification relating to your income tax return.
Automated data-matching against AIS, Form 26AS, and third-party reports (banks, registrars, employers) can trigger a notice purely from a timing mismatch or a reporting error on someone else's end, not necessarily a mistake in your return.
Yes. Not responding within the given time lets the Assessing Officer complete the matter using only the department's own information, which is usually worse for you than a timely, well-supported reply.
It depends on the section. A defective return notice under Section 139(9) gives 15 days, a 148A show cause notice gives 7 to 30 days, and a demand notice under Section 156 gives 30 days. Always confirm the exact deadline stated on your specific notice.
The Income-tax Act, 2025 replaced the Income-tax Act, 1961 from 1 April 2026, renumbering sections across a simplified, 536-section structure. Section 143(1) is now Section 270, and the reassessment provisions (148A, 148) are now Sections 281 and 280. Notices relating to earlier years may still cite old-Act sections since pending matters continue under the 1961 Act's saving provisions, so always check which Act and year your notice actually refers to.
A simple 143(1) intimation with no real discrepancy can often be closed without help. For defective returns, scrutiny, reassessment under 148/148A, or anything involving a demand, professional review is strongly advisable, since an incomplete or wrongly worded reply can create liability that wasn't there in the original notice.
The notice itself, PAN, your filed ITR and computation, Form 16, Form 26AS and AIS for the relevant year, bank statements, and any document specifically named in the notice.