Sections 522 explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
Sections 522 to 526 of the Income-tax Act, 2025 protect the process of assessment from technical objections. A mistake in a return or notice does not by itself invalidate it, an assessee who has taken part in a proceeding cannot later complain about service of a notice, material found in a search carries presumptions, search authorisations in more than one name still lead to separate assessments, and civil suits against proceedings under the Act are barred.
This explanation is as per the Income-tax Act, 2025 (30 of 2025) as amended by the Finance Act, 2026. Under section 1(3) the Act came into force on the 1st April, 2026, save as otherwise provided. Later amendments, rules and notifications should be checked. Section 522 is printed as substituted by the Finance Act, 2026, with effect from 1 April 2026. If you are facing a dispute over the validity of a notice or order, see our legal dispute resolution service.
A return, assessment, notice or summons is not invalid merely because of a mistake, defect or omission, if in substance and effect it conforms to the intent and purposes of the Act. An assessee who appears or co-operates in an assessment cannot object to service of notice unless the objection was raised before the assessment was completed. Material found in a search or survey may be presumed to belong to the person and to be true. Assessments are made separately for each named person. Civil suits are barred, and Government and its officers are protected for acts done in good faith.
Section 522: circumstances in which a return, assessment or approval is not invalid
Sub-section (1): mistakes, defects and omissions
No return of income, assessment, notice, summons or other proceedings relating thereto, furnished, made, issued or taken (or purported to be), in pursuance of the Act, shall be invalid or deemed invalid merely by reason of any mistake, defect or omission, if it is in substance and effect in conformity with or according to the intent and purposes of the Act.
Sub-section (2): document identification number
No assessment shall be invalid on the ground of any mistake, defect or omission in quoting a computer generated Document Identification Number, if the assessment order is referenced by such number in any manner.
Sub-section (3): approvals
Irrespective of anything in the Act, any approval given by an income-tax authority in relation to any assessment, reassessment or recomputation proceedings is deemed to be administrative and supervisory in nature and is not invalid by reason of:
- any insufficiency of the reasons recorded; or
- any defect in the form or manner of its authentication or communication, including whether a digital signature has been appended, where the approval has been granted electronically.
The text of section 522 is as substituted by the Finance Act, 2026, with effect from 1 April 2026; read it as printed above, not as it stood before substitution. The section is a rule about validity, so it does not say that every defect is excused: the test in sub-section (1) is substance and effect.
Section 523: notice deemed to be valid in certain circumstances
Sub-section (1)
Where an assessee has appeared in any proceeding or co-operated in any inquiry relating to an assessment or reassessment, it is deemed that any notice under the Act which is required to be served upon him has been duly served upon him in time as per the Act. He is then precluded from taking any objection in any proceeding or inquiry under the Act that the notice was:
- (a) not served upon him;
- (b) not served upon him in time; or
- (c) served upon him in an improper manner.
Sub-section (2)
Sub-section (1) does not apply where the assessee has raised such an objection before the completion of the assessment or reassessment.
The effect is that the objection must be raised during the assessment; once the assessment is complete, an assessee who took part cannot raise it. How a notice is served in the first place is in our note on sections 501 to 504.
Section 524: presumption as to assets, books of account and similar material
Sub-section (1)
Where books of account, other documents, money, bullion, jewellery, virtual digital asset or other valuable article or thing, or any information in electronic form (as defined in section 261(g)) or on a computer system (as defined in section 261(e)), or any computer system containing that information, is found in the possession or control of any person in a search under section 247 or a survey under section 253, it may, in any proceeding under the Act, be presumed:
- (a) that the item belongs to that person;
- (b) that the contents of the books, documents, information or computer system are true;
- (c) that the signature and every other part, purporting to be in the handwriting of a particular person or reasonably assumed to be so, is in that person's handwriting;
- (d) for a stamped, executed or attested document, that it was duly stamped and executed or attested by the person by whom it purports to have been so done; and
- (e) that an exchange of electronic information, purported to be between any parties, took place between them.
Sub-section (2)
Where books, documents or assets have been delivered to the requisitioning officer under section 248, sub-section (1) applies as if those items, taken into custody from the person referred to in section 248(1)(a), (b) or (c), had been found in that person's possession or control in a search under section 247.
Section 524 says the presumption may be made, in any proceeding under the Act; the companion provision for prosecution in section 489 is in our note on sections 487 to 490. For search, see section 247 and for survey section 253.
Section 525: authorisation and assessment in case of search or requisition
Sub-section (1)
Irrespective of anything in the Act: (a) it is not necessary to issue an authorisation under section 247 or make a requisition under section 248 separately in the name of each person; and (b) where an authorisation or requisition mentions the names of more than one person, that is not deemed to mean that it was issued in the name of an association of persons or body of individuals made up of those persons.
Sub-section (2)
Irrespective of such an authorisation or requisition naming more than one person, the assessment or reassessment shall be made separately in the name of each of the persons mentioned in it.
Section 526: bar of suits in civil courts
No suit shall be brought in any civil court to set aside or modify any proceeding taken or order made under the Act, and no prosecution, suit or other proceeding lies against the Government or any officer of the Government for anything done or intended to be done in good faith under the Act.
| Section | Rule | Key condition |
|---|---|---|
| 522(1) | Return, assessment, notice, summons not invalid for mistake, defect or omission | In substance and effect in conformity with the intent and purposes of the Act |
| 522(2) | Assessment not invalid for error in quoting the Document Identification Number | The order is referenced by such number in any manner |
| 522(3) | Approvals are administrative and supervisory | Not invalid for insufficient reasons or defect in authentication or communication |
| 523 | Notice deemed duly served | Assessee appeared or co-operated; no objection before completion of assessment |
| 524 | Presumptions (may be made) | Found in search under section 247 or survey under section 253; or delivered under section 248 |
| 525 | One authorisation may name several persons | Assessment still separate for each person |
| 526 | No civil suit; protection for good faith acts | Applies to Government and its officers |
A worked example (names assumed)
Mr. Vivek is assessed for a tax year. A notice sent to him contains a wrong spelling of his firm's name. He attends the hearing and submits the documents asked for. (Names and facts are assumed.)
- Under section 522(1), the notice is not invalid merely because of the spelling mistake, if in substance and effect it conforms to the intent and purposes of the Act.
- Because Mr. Vivek appeared in the proceeding, section 523(1) treats the notice as duly served in time, and he cannot later object that it was not served, not served in time, or served improperly, unless he raised the objection before the assessment was completed (section 523(2)).
- During a search under section 247, books of account are found in his possession. Under section 524(1) the authority may presume that they belong to him and that their contents are true.
- If the search authorisation named Mr. Vivek and his brother, section 525(2) requires separate assessments in the name of each, and the authorisation is not treated as issued in the name of an association of persons.
Need help with a notice or an order you want to challenge?
Whether a defect in a notice or order matters, and when an objection must be raised, depends on the record and the stage of the proceeding. Our legal dispute resolution team can review the papers with you.
Key takeaways
- A mistake, defect or omission does not by itself invalidate a return, assessment, notice or summons that is in substance in conformity with the Act (section 522(1)).
- An error in quoting the Document Identification Number does not invalidate an assessment referenced by that number in any manner (section 522(2)).
- Approvals in assessment, reassessment or recomputation are administrative and supervisory (section 522(3)).
- An assessee who appeared or co-operated is deemed to have been duly served, unless he objected before the assessment was completed (section 523).
- Material found in a search or survey may be presumed to belong to the person and to be true (section 524).
- Assessments are made separately in the name of each person named in a search authorisation or requisition (section 525).
- Civil suits to set aside or modify proceedings are barred (section 526).
Read next
- Sections 516 to 521: rounding off, receipts, indemnity, immunity and cognizance of offences
- Sections 527 to 531: powers on mineral oil, condonation and withdrawal of approval
- Section 247: search and seizure
- Section 253: survey
Disclaimer: Based on the Income-tax Act, 2025 (30 of 2025) as amended by the Finance Act, 2026, as consulted on 2 October 2026. It explains the words of the Act only; the Income-tax Rules, 2026, notifications, circulars, later amendments and the way the tax authorities and courts apply these provisions should be checked. This article is general information, not legal advice; check the official text before acting.