Use the Income Tax Department’s pre-login Authenticate Notice / Order issued by ITD service to check whether a reassessment communication appears in the Department’s issue records. You can search with your PAN and document details or with the notice’s Document Identification Number (DIN), then confirm with a mobile OTP.
That check addresses issuance and authenticity. To investigate whether the notice was served, sign in to the e-Filing portal and review e-Proceedings, your registered email, and—where the applicable faceless-proceeding rules allow it—the taxpayer mobile app. Keep the notice and delivery records. A matching authentication result does not, by itself, establish every fact about service, receipt, validity, or the date on which a response period starts.
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What you need before checking
Gather the information shown on the communication and keep it private. You may need:
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- Your PAN.
- The document type selected by the Income Tax Department’s authentication service.
- The assessment year or tax year shown on the communication, using the year format requested by the portal.
- The date shown as the date of issue.
- The DIN, if the communication carries one.
- A mobile number that can receive the one-time password (OTP).
Do not publish or send your PAN, DIN, OTP, password, or a complete notice to an unverified person. If someone sends you a purported notice by email or messaging service, use the Department’s own portal rather than a link in that message.
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Check whether the Department’s records show the notice as issued
The official pre-login service is called Authenticate Notice / Order issued by ITD. The Income Tax Department says it is available to registered and unregistered users, so you do not need to sign in merely to run the authentication lookup.
Option 1: Search with PAN and document details
- Open the Income Tax Department e-Filing portal and select the pre-login service named Authenticate Notice / Order issued by ITD.
- Choose the PAN-based verification route.
- Enter your PAN, the document type, the relevant year, the date of issue shown on the notice, and a mobile number for OTP verification.
- Request and enter the OTP. Use the current OTP and follow the portal’s validity instructions.
- Review the result. After successful OTP validation, the manual says the PAN route displays the document number and issue date when the details match an issued communication.
Option 2: Search with the DIN
- Open the same Authenticate Notice / Order issued by ITD service.
- Select the DIN-based route.
- Enter the DIN printed on the notice and a mobile number that can receive the OTP.
- Complete OTP verification.
- Read the result. The DIN route reports whether a matching official communication was issued.
Use the DIN route when the number is legible and complete. Use the PAN route when you do not have a DIN or need to cross-check the document metadata. If the notice contains both, checking the communication with the DIN and confirming the issue date shown on the document can help identify transcription errors.
What a “No record found” result means
The official user manual uses the message No record found for the given criteria.
It means the service did not find a matching record for the values you entered in that check. It is not, by itself, a legal finding that no notice exists, that a notice was not served, or that a response deadline cannot apply.
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- Confirm that you selected the correct route: PAN and document metadata or DIN.
- Check every character of the PAN or DIN, including zeros, letters, and leading characters.
- Make sure you selected the correct document type.
- Distinguish the assessment year or tax year requested by the form. Do not substitute a calendar year simply because it appears in an email subject.
- Copy the date of issue exactly as printed, using the portal’s date format.
- Use a mobile number that can receive the OTP and complete a fresh OTP attempt.
- If the result still does not match, compare the notice with records in your signed-in account and with the message that delivered it. Preserve screenshots or downloaded records showing the search and its date.
A failed lookup can result from a wrong year, document type, date, DIN, PAN, or OTP-enabled mobile number. Treat the result narrowly and investigate the other official channels before deciding that the communication is not genuine or was never served.
Check the signed-in e-Proceedings record
Authentication is a pre-login issuance check. The logged-in e-Proceedings area is where registered taxpayers and authorized representatives can view and respond to many Department notices, intimations, and letters.
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- Sign in to the Income Tax Department e-Filing portal using the taxpayer or authorized representative account.
- Open Dashboard.
- Select Pending action.
- Open E-proceeding.
- Review active and available proceedings, open the relevant communication, and download the notice, attachments, acknowledgements, and response history.
Record the proceeding identifier, the document’s issue date, the date you first saw it, and any response date displayed in the proceeding. If you act as an authorized representative, verify that the authorization is active and that the proceeding is associated with the correct taxpayer account.
Check the channels that can establish electronic delivery
For covered faceless assessment, reassessment, or recomputation communications, the notified rules describe several electronic delivery methods. An authenticated copy may be:
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- Sent to the registered email address of the assessee or authorized representative; or
- Uploaded to the taxpayer’s mobile app.
The rules also describe a real-time alert after delivery through those channels. Check each channel that applies to you:
Registered account
Look in e-Proceedings and related pending-action areas, not only the portal home page. Download the complete communication and its attachments. Note the timestamp shown by the portal if one is available.
Registered email
Search the inbox, spam, quarantine, archive, and mail rules for the Department’s message. Keep the original message, its headers where available, attachments, and the date and time your mail system received it. Do not rely only on a forwarded copy.
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Taxpayer mobile app
If the applicable proceeding uses the taxpayer mobile app, check the notification history and the document area. Preserve the alert and the document together because an alert alone may not show the full communication.
The notified delivery rules concern specified faceless proceedings. They should not be generalized to every tax communication or treated as a substitute for checking the exact notice, the applicable proceeding type, and the current law.
Issued, authenticated, and served are different questions
| Question | Best first check | What the result can show | What it does not establish alone |
|---|---|---|---|
| Was a communication issued? | Pre-login Authenticate Notice / Order issued by ITD | Whether the Department’s records match the PAN/document details or DIN supplied. | Every fact about delivery, receipt, legal validity, or the start of a response period. |
| Can I view or respond to the proceeding? | Signed-in Dashboard > Pending action > E-proceeding | Communications and response functions available to the taxpayer or authorized representative in the account. | That every communication was delivered through the same channel or that a disputed deadline is legally resolved. |
| How might a covered faceless communication be delivered? | Registered account, registered email, and applicable taxpayer mobile app | The electronic channels and real-time alert described in the notified rules for covered proceedings. | That those rules apply to every notice or decide a particular service dispute without reviewing the facts. |
Think of these as separate evidence layers. A notice can appear as issued in the authentication service while the service question still requires examination of the account, email, app, alerts, and the law governing the proceeding. Conversely, finding an email or portal document does not remove the need to verify that it is the correct communication and that its DIN and proceeding details match.
Use the DIN to check authenticity
The Department’s FAQ says communications issued on or after 1 October 2019 should bear a unique Document Identification Number (DIN). The authentication service is intended to help check whether a notice, order, or letter is genuine.
The same FAQ states that a notice, order, or letter without a DIN is treated as invalid and non est in law under the Department’s published guidance. Apply that statement carefully: inspect the document, the relevant exceptions or rules, and the facts of the proceeding rather than assuming that any missing or unreadable number automatically resolves a dispute. If a DIN is present, enter it exactly in the official service and retain the result.
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Identify the law that governs the reassessment
Do not mix the section numbers and procedures of the Income Tax Act, 1961 with those of the Income Tax Act, 2025. First identify the tax period and the section printed on the notice.
| Tax period or status | Department FAQ’s transition guidance | Practical implication |
|---|---|---|
| Tax Year 2026–27 onward | The reassessment provisions of the Income Tax Act, 2025 (sections 279–286) apply. | Read the notice and current statutory text using the new-Act section numbers. |
| Tax years beginning before 1 April 2026 | The Income Tax Act, 1961 applies. | Do not replace the old-Act procedure with a new-Act checklist merely because the notice is being viewed today. |
| Pending reassessment proceedings initiated under the 1961 Act | The FAQ says they continue under the old Act. | Check the proceeding’s initiation date, section, and documents before deciding which procedural rules control. |
The Department identifies new section 280 as corresponding to old section 148. That correspondence does not make every requirement interchangeable. The notice’s tax period, section, proceeding status, and the applicable statutory text control.
High-level sequence under the new Act
The Department’s reassessment FAQ describes a general sequence in which information suggests escaped income, a show-cause notice and opportunity to respond are issued under section 281, the response is considered, a reasoned order is made, and a section 280 notice follows. The FAQ also lists situations in which the preliminary procedure may be skipped. This is a high-level description, not a substitute for the exact notice and statutory text. Detailed deadlines and exceptions must be tied to the section and facts printed in your communication.
Build a service record before responding
Create one chronological file for the matter. Include:
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- The DIN and proceeding identifier.
- The issue date printed on the notice.
- The date and time shown in portal records.
- The original delivery email and available headers.
- Mobile-app alerts or screenshots where applicable.
- Authentication results from the pre-login service.
- Portal acknowledgements for any response you submit.
- A note of when you personally accessed or downloaded the communication.
Use filenames that preserve dates and versions, and keep an unedited copy of each original. Avoid annotating the only copy. If you must share documents with a professional, redact PAN, account credentials, OTPs, and unrelated personal information unless the recipient is verified and needs the unredacted record.
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Deadlines are notice-specific
Do not calculate a response deadline from a generic article or from the date on which you happened to discover the notice. Read the actual communication, identify its response date and section, and compare the issue and delivery evidence with the proceeding record. The legal consequence of a late response can depend on the governing Act, proceeding type, delivery method, extensions, and case-specific facts.
If a proceeding is active, the response date is close, or the authenticity and service records conflict, submit no informal explanation in place of the required portal response. A qualified Indian chartered accountant or tax lawyer can examine the notice, the applicable law, and the delivery evidence for your particular case.
Troubleshooting common problems
The DIN lookup fails but the notice looks genuine
Re-enter the DIN manually, compare similar-looking letters and numbers, and try the PAN/document route with the exact issue date and document type. Then check e-Proceedings and registered delivery channels. Keep both the failed and successful results, with dates, if the records differ.
The PAN route returns no match
Check whether you used the assessment year or tax year requested by the portal, rather than the year in an email subject. Reconfirm the document type and issue date, and use the DIN route if a DIN is printed. A no-match result is limited to the entered criteria.
The portal shows a document but no email was received
Download the portal record and inspect spam, quarantine, archive, forwarding rules, and alternate registered addresses. The absence of an email in one inbox does not by itself answer whether the document was placed in the registered account or delivered through another permitted channel.
You cannot see the proceeding after signing in
Confirm that you are using the taxpayer account associated with the PAN on the notice or an authorized representative account with current authorization. Recheck Dashboard > Pending action > E-proceeding, and preserve any portal error message. If the response date is near, obtain case-specific professional help rather than waiting for a portal issue to resolve.
Quick Recap
A practical decision path
- Authenticate: Run the pre-login service using PAN/document details or DIN and OTP.
- Verify the document: Match the result’s document number and issue date to the notice.
- Inspect the proceeding: Sign in and follow Dashboard > Pending action > E-proceeding.
- Check delivery evidence: Review the registered account, registered email, and applicable mobile-app records.
- Classify the law: Identify the tax period, section, and whether the proceeding began under the 1961 Act or is governed by the 2025 Act.
- Preserve the timeline: Save the notice, alerts, portal records, and response acknowledgements.
- Address the deadline: Follow the actual notice and obtain qualified Indian tax advice when the matter is active or disputed.
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