Chapter XV - Return of Income
Section 263
Section 263: filing of return of income
Section 263 is the central return-filing provision of the Income-tax Act, 2025 - the successor to the widely known Section 139 of the 1961 Act. It sets out who must file an income-tax return, the due dates that apply depending on the type of taxpayer, and the separate windows available for a belated return, a revised return, and an updated return.
On this page
Need advice on Section 263?
This article is for general information. Refer to the Income-tax Act, 2025 as amended by the Finance Act, 2026 and the Taxation and Other Laws (Amendment) Act, 2026 for the official provisions. If you need professional advice for your situation, contact Bizeneed.
Statutory text
Bare law
(1)(a) Every person as mentioned below shall, for a tax year, on or before the due date, furnish a return of his income or the income of any other person in respect of which he is assessable during the said tax year:— (i) a company; (ii) a firm; (iii) a person other than a company or a firm, if his total income or the total income of any other person in respect of which he is assessable under this Act during the tax year, without giving effect to the provisions of Chapter XVII-B or provisions of Schedule VIII (Table: Sl. No. 1) or deductions allowable under section 82 or 83 or 84 or 85 or 86 or 87 or 88 of Chapter IV-E or Chapter VIII, as the case may be, exceeded the maximum amount which is not chargeable to income-tax; (iv) a specified entity, if its total income without giving effect to the provisions of section 11 exceeds the maximum amount which is not chargeable to income-tax; (v) a University, college or other institution as referred to in section 45(3) (a); (vi) a business trust; (vii) an investment fund as referred to in section 224; (viii) a person who has sustained a loss in the tax year under the head “Profits and gains of business or profession” or under the head “Capital gains” and who intends to claim that such loss, or any part thereof, is to be carried forward as per this Act; (ix) a person, who is a resident, other than not ordinarily resident, and who at any time during the tax year,–– (A) holds, as a beneficial owner or otherwise, any asset (including any financial interest in an entity) located outside India, or has signing authority in any account located outside India; or (B) is a beneficiary of any asset (including any financial interest in an entity) located outside India, except where any income arising from such asset is includible in the income of person referred to in item (A); (x) a person, other than a company or firm, who during the tax year, fulfils such conditions as may be prescribed; (b) the persons referred in clauses (a)(i), (a)(ii), (a)(v), (a)(vi), (a)(vii) and (a)(ix) shall furnish return on or before the due date regardless of income or loss; (c) for the purposes of this section, “due date” in respect of the persons mentioned in column B of the Table below, subject to conditions as mentioned in column C of the said Table, shall be the due date of the financial year succeeding the relevant tax year as mentioned in column D thereof:
| Sl. No. | Person | Conditions | Due date |
|---|---|---|---|
| 1 | Assessee, including the partners of the firm or the spouse of such partner (if section 10 applies to such spouse). | Where the provisions of section 172 apply. | 30th November. |
| 2 | (i) Company; (ii) Assessee (other than a company) whose accounts are required to be audited under this Act or under any other law in force; (iii) partner of a firm whose accounts are required to be audited under this Act or under any other law in force; or the spouse of such partner (if section 10 applies to such spouse). | Where the provisions of section 172 do not apply. | 31st October. |
| 3 | (i) Assessee having income from profits and gains of business or profession whose accounts are not required to be audited under this Act or under any other law in force; (ii) partner of a firm whose accounts are not required to be audited under this Act or under any other law in force or the spouse of such partner (if section 10 applies to such spouse). | Where the provisions of section 172 do not apply. | 31st August. |
| 4 | Any other assessee. | — | 31st July. |
(2)(a) The Board may prescribe form for furnishing return of income, manner of its verification and such other particulars including–– (i) the class or classes of persons who shall be required to furnish the return in electronic form or otherwise; (ii) the form and the manner in which the return may be furnished, whether in electronic form or otherwise; (iii) the documents, statements, receipts, certificates, audited reports or any other documents which may not be furnished along with the return in electronic form but shall be produced before the Assessing Officer on demand; (iv) the computer resource or the electronic record to which the return in electronic form may be transmitted; (b) the particulars prescribed under clause (a) may also include–– (i) income exempt from tax; (ii) assets of the prescribed nature and value held by the assessee as a beneficial owner or otherwise or in which he is a beneficiary; (iii) bank account and credit card held by the assessee; (iv) expenditure exceeding the prescribed limit incurred by the assessee under prescribed heads; (v) such other outgoings as may be prescribed; (vi) the report of any audit referred to in section 63 or a copy thereof; (vii) the particulars of the location and style of the principal place of the business or profession and all the branches thereof; (viii) the names and addresses of the partners, if any, in the business or profession; (ix) the names of the other members of the association of person or the body of individuals and the extent of the share of the assessee and the shares of all such members in the profits of the business or profession and any branches thereof.
(3) The Central Government may, by notification, exempt any class or classes of persons, from the obligation to file a return of income under this section, subject to the conditions specified therein.
(4) Any person who has not furnished a return within the time allowed to him under sub-section (1), may furnish the return for any tax year at any time within nine months from the end of the relevant tax year, or before the completion of the assessment, whichever is earlier.
(5) If any person, having furnished a return under sub-section (1) or (4), discovers any omission or any wrong statement therein, he may, subject to the provisions of section 428(b), furnish a revised return at any time within twelve months from the end of the relevant tax year, or before the completion of the assessment, whichever is earlier.
(6)(a) Any person, whether or not he has furnished a return under sub-section (1) or (4) or (5) for a tax year, may furnish an updated return of his income or the income of any other person in respect of which he is assessable under this Act, at any time within forty-eight months from the end of the financial year succeeding the relevant tax year; (b)(i) the provisions of clause (a) shall continue to apply for a tax year if any person has sustained a loss in the said tax year and has furnished a return of loss within the due date specified under sub-section (1) and the updated return is a return of income or such updated return has the effect of reducing the loss; (ii) the provisions of clause (a) shall also apply where an updated return is furnished by a person for the relevant tax year in pursuance of a notice issued under section 280 within such period as specified in the said notice and in such a case, the assessee shall be precluded from filing return in pursuance of the said notice in any other manner; (c) the provisions of clause (a) shall not apply for a tax year for any person, if–– (i) the updated return is a return of loss for the said tax year except in a case referred to in sub-section (6)(b)(i); or (ii) the updated return has the effect of decreasing the total tax liability determined on the basis of return furnished under sub-section (1) or (4) or (5) for the said tax year; or (iii) the updated return results in refund where no refund was due or increases the refund due on the basis of return furnished under sub-section (1) or (4) or (5) for the said tax year; or (iv) an updated return has already been furnished for the said tax year; or (v) any proceeding for assessment or reassessment or recomputation or revision of income under this Act is pending or has been completed for the said tax year except in a case referred to in sub-section (6)(b)(ii); or (vi) the Assessing Officer is in the possession of information in respect of such person for the said tax year regarding violation of specified laws and the same has been communicated to him prior to the date of furnishing of updated return; or (vii) information for the said tax year has been received under an agreement referred to in section 90 or 90A of Income-tax Act, 1961 (43 of 1961) or section 159 of this Act in respect of such person and the same has been communicated to him, prior to the date of furnishing of updated return; or (viii) any prosecution proceedings under the Chapter XXII have been initiated for the said tax year in respect of such person, prior to the date of furnishing of updated return; or (ix) thirty-six months have expired from the end of the financial year succeeding the relevant tax year, and any notice to show-cause under section 281 has been issued in his case, except where an order has been passed under section 281(3) determining that it is not a fit case to issue notice under section 280; or (x) he is such person or belongs to such class of persons, as may be notified by the Board in this regard; (d) a person shall also not be eligible to furnish an updated return of income, where— (i) a search has been initiated under section 247 or books of account or other documents or any assets are requisitioned under section 248 in the case of that person; or (ii) a survey has been conducted under section 253, other than sub-section (4) of the said section, in the case of that person; or (iii) a notice has been issued under section 294 in pursuance to the provisions of section 295, to that person, for the tax year in which such search is initiated or survey is conducted or requisition is made and any tax year preceding such tax year; (e) if a person has furnished a return of income under clause (a) for a tax year, and as a result the loss or any part thereof carried forward under Chapter VII or unabsorbed depreciation carried forward under section 33(3)(b) or tax credit carried forward under section 206(2)(e) to (h) and 206(3) and (4) is to be reduced for any subsequent tax year, then, an updated return shall be furnished for each such subsequent tax year.
(7) A return of income furnished under this section, shall be treated as defective if it is not in conformity with all the conditions as may be prescribed and shall be dealt with in the following manner:–– (a) where the Assessing Officer considers that the return of income furnished by the assessee is defective, he may intimate the defect to the assessee and give him an opportunity to rectify the defect within fifteen days from the date of such intimation or within a further period as may be allowed on an application made by the assessee in this behalf; (b) if the defect is not rectified within the period allowed under clause (a), then the return shall be treated as an invalid return and the provisions of this Act shall apply as if the assessee had failed to furnish the return; (c) where the assessee rectifies the defect after the expiry of the period allowed under clause (a), but before the assessment is made, the Assessing Officer may condone the delay and treat the return as a valid return.
(8)(a) The provisions of this section shall also apply to a return of income which is furnished in pursuance of an order passed under section 239(3)(b); (b) the provisions of this section shall not apply to a specified senior citizen, as referred to in section 402(39), for the relevant tax year in which tax has been deducted at source under section 393(1) [Table: Sl. No. 8(iii)].
(9) For the purposes of this section,–– (a) “beneficial owner”, in respect of an asset means an individual who has provided, directly or indirectly, consideration for the asset for the immediate or future benefit, direct or indirect, of himself or any other person; (b) “beneficiary”, in respect of an asset means an individual who derives benefit from the asset during the tax year and the consideration for such asset has been provided by any person other than such beneficiary; (c) “specified entity” means–– (i) research association referred to in Schedule III (Table: Sl. No. 23); (ii) association or institution referred to in Schedule III (Table: Sl. No. 24); (iii) person referred to in Schedule VII (Table: Sl. No. 2); (iv) institution referred to in Schedule III (Table: Sl. No. 25); (v) any University or other educational institution or any hospital or other medical institution referred to in Schedule VII (Table: Sl. Nos. 17, 18 and 19); (vi) Mutual Fund referred to in Schedule VII (Table: Sl. Nos. 20 and 21); (vii) securitisation trust referred to in Schedule III (Table: Sl. No. 26); (viii) Investor Protection Fund referred to in Schedule III (Table: Sl. Nos. 28 and 29); (ix) Core Settlement Guarantee Fund referred to in Schedule III (Table: Sl. No. 30); (x) venture capital company or venture capital fund referred to in Schedule V (Table: Sl. No. 6); (xi) trade union or association referred to in Schedule III (Table: Sl. No. 31); (xii) Board or Authority referred to in Schedule VII (Table: Sl. Nos. 33 to 40); (xiii) Body or Authority or Board or Trust or Commission (by whatever name called) referred to in Schedule III (Table: Sl. No. 36); (xiv) infrastructure debt fund referred to in Schedule VII (Table: Sl. No. 46); (d) “specified laws” shall refer to the Smugglers and Foreign Exchange Manipulators (Forfeiture of Property) Act, 1976 (13 of 1976), or the Prohibition of Benami Property Transactions Act, 1988 (45 of 1988), or the Prevention of Money-laundering Act, 2002 (15 of 2003), or the Black Money (Undisclosed Foreign Income and Assets) and Imposition of Tax Act, 2015 (22 of 2015).
Introduction
Section 263 is the central filing provision for income-tax returns. It identifies who must file, the applicable due date, revised and belated routes, and several specific filing situations.
A filing decision requires the tax year, person category, income or transaction triggers and the currently amended deadlines.
Key takeaways
Return filing is category-specific
The section identifies who must file and the due date for each taxpayer category; the Finance Act 2026 substituted its due-date table.
Belated and revised routes
Subsections (4) and (5) allow returns after the original due date and corrections, within their distinct statutory limits.
Updated return has exclusions
Subsection (6) allows an updated return in qualifying cases but bars it in listed circumstances, including specified search-related cases.
Who must file a return
Section 263(1)(a) requires the following persons to furnish a return of their income, or of income of another person for which they are assessable, on or before the due date:
- A company
- A firm
- Any other person (not a company or firm) whose total income, or the total income of a person they are assessable for, exceeded the maximum amount not chargeable to income-tax - computed without giving effect to Chapter XVII-B, Schedule VIII (Sl. No. 1), or deductions under Sections 82, 83, 84, 85, 86, 87 or 88 (Chapter IV-E) or Chapter VIII
- A specified entity, if its total income (without giving effect to Section 11) exceeds the maximum amount not chargeable to tax
- A University, college or other institution referred to in Section 45(3)(a)
- A business trust
- An investment fund as referred to in Section 224
- A person who has sustained a loss in the tax year under "Profits and gains of business or profession" or "Capital gains" and intends to carry that loss forward
- A resident (other than not-ordinarily-resident) who, at any time during the tax year, holds (as beneficial owner or otherwise) any asset or financial interest located outside India, has signing authority in an account outside India, or is a beneficiary of such an asset (except where the income from it is includible in the income of the person referred to in subsection (1)(a)(ix)(A))
- A person (other than a company or firm) who fulfils prescribed conditions
Filing regardless of income or loss
Companies, firms, universities/institutions under Section 45(3)(a), business trusts, investment funds under Section 224, and persons holding foreign assets/signing authority (the entities in clauses (a)(i), (ii), (v), (vi), (vii) and (ix) above) must file a return on or before the due date regardless of whether they have income or a loss.
Due dates for filing (current table, as amended by the Finance Act, 2026)
"Due date" for filing under Section 263 depends on the category of person and the applicable condition, as set out below. This is the table as substituted by the Finance Act, 2026 (with effect from 1 April 2026):
| Category of person | Condition | Due date |
|---|---|---|
| Assessee, including the partners of a firm, or the spouse of such partner (where Section 10 applies to that spouse) | Where the provisions of Section 172 apply | 30th November |
| Company; assessee (other than a company) whose accounts are required to be audited under this Act or any other law; partner of a firm whose accounts are required to be audited, or spouse of such partner (where Section 10 applies) | Where the provisions of Section 172 do not apply | 31st October |
| Assessee with income from profits and gains of business or profession whose accounts are not required to be audited; partner of a firm whose accounts are not required to be audited, or spouse of such partner (where Section 10 applies) | Where the provisions of Section 172 do not apply | 31st August |
| Any other assessee | - | 31st July |
Form, manner and particulars of the return
The Board may prescribe the form for the return, the manner of its verification, and other particulars, including which classes of persons must file electronically, the form/manner of electronic filing, which documents need not be attached electronically but must be produced before the Assessing Officer on demand, and the computer resource to which an electronic return may be transmitted.
The prescribed particulars may also cover exempt income, assets of a prescribed nature/value held as beneficial owner or beneficiary, bank accounts and credit cards held, expenditure above prescribed limits under prescribed heads, other prescribed outgoings, audit reports under Section 63, and details of business location, branches, partners, and association/body members.
Exemption from filing by notification
The Central Government may, by notification, exempt any class or classes of persons from the obligation to file a return under this section, subject to conditions specified in that notification.
Belated return
A person who has not furnished a return within the time allowed under sub-section (1) may still furnish a belated return for any tax year, at any time within nine months from the end of the relevant tax year, or before the completion of the assessment, whichever is earlier.
Revised return
If a person, having already furnished a return under sub-section (1) or (4), discovers an omission or wrong statement in it, they may (subject to Section 428(b)) furnish a revised return at any time within twelve months from the end of the relevant tax year, or before the completion of the assessment, whichever is earlier. This twelve-month window reflects the current text as substituted by the Finance Act, 2026, with effect from 1 April 2026.
Updated return
Any person, whether or not they have already filed a return for a tax year, may furnish an updated return of their own income or of income of another person they are assessable for, at any time within forty-eight months from the end of the financial year succeeding the relevant tax year.
This window continues to apply for a tax year where a person has sustained a loss, filed a return of loss within the due date, and the updated return is a return of income or reduces the loss. It also applies where the updated return is filed in pursuance of a notice under Section 280, within the period specified in that notice - in which case the assessee cannot file a return in response to that notice in any other manner.
When an updated return cannot be filed
An updated return under sub-section (6)(a) cannot be filed for a tax year if, among other conditions:
- The updated return is a return of loss, except where subsection (6)(b)(i) applies: a timely original loss return and an updated return that reduces the loss or is a return of income
- It decreases the total tax liability determined from the earlier return
- It results in a refund where none was due, or increases a refund already due, based on the earlier return
- An updated return has already been furnished for that tax year
- Any assessment, reassessment, recomputation or revision proceeding is pending or completed for that tax year (subject to a specific exception for returns filed under a Section 280 notice)
- The Assessing Officer already possesses and has communicated information about violation of specified laws (the Smugglers and Foreign Exchange Manipulators Act, 1976; the Prohibition of Benami Property Transactions Act, 1988; the Prevention of Money-laundering Act, 2002; or the Black Money Act, 2015) for that person and year
- Information has been received and communicated under a Section 90/90A (1961 Act) or Section 159 agreement
- Prosecution proceedings under Chapter XXII have already been initiated for that year
- Thirty-six months have expired from the end of the financial year succeeding the relevant tax year and a show-cause notice under Section 281 has been issued (unless an order under Section 281(3) determined it was not a fit case for such notice)
- The person belongs to a class notified by the Board as ineligible
Updated return also barred after search, requisition or survey
A person also cannot file an updated return where a search has been initiated under Section 247, books/documents/assets have been requisitioned under Section 248, a survey has been conducted under Section 253 (other than sub-section (4) of that section), or a notice under Section 294 (pursuant to Section 295) has been issued to them - for the tax year in which the search/survey/requisition occurred and any preceding tax year.
If a person files an updated return under sub-section (6)(a) that reduces a loss, unabsorbed depreciation, or tax credit otherwise carried forward, they must also file an updated return for each subsequent tax year affected.
Defective returns
Under subsection (7)(a), where the Assessing Officer considers a return defective, he may intimate the defect and give an opportunity to rectify it within fifteen days from the intimation, or a further period allowed on application. The prescribed conformity conditions and this statutory rectification process should be read together.
If the defect is not rectified within the period allowed, the return is treated as invalid, and the Act applies as if the assessee had failed to file a return at all. If the assessee rectifies the defect after the allowed period but before assessment, the Assessing Officer may condone the delay and treat the return as valid.
Other application notes
This section also applies to a return filed pursuant to an order under Section 239(3)(b).
This section does not apply to a specified senior citizen (as referred to in Section 402(39)) for a tax year in which tax has been deducted at source under Section 393(1) [Table: Sl. No. 8(iii)].
Step-by-step flow for applying Section 263
- 1
Must the person file a return?
Companies, firms, business trusts, specified investment funds, specified universities and institutions, and residents with foreign assets must file regardless of income or loss. Others file if total income (before specified deductions) exceeds the basic exemption limit, if they want to carry forward a loss, or if they meet prescribed conditions.
- 2
Find the due date
Read the due-date Table in Section 263(1)(c) for the person's category and conditions (for example, whether accounts must be audited).
- 3
Missed the due date?
- Yes: A belated return may be filed within nine months from the end of the tax year, or before assessment is completed, whichever is earlier (Section 263(4)).
- No: Go to the next step.
- 4
Found an omission or wrong statement after filing?
- Yes: File a revised return within twelve months from the end of the tax year, or before assessment is completed, whichever is earlier (Section 263(5)).
- 5
Need to report more income after those windows close?
An updated return may be possible within forty-eight months from the end of the financial year following the tax year, subject to the bars in Section 263(6) and payment of the additional tax.
Practical checklist
Do
- Determine the taxpayer category and return obligation before choosing the form.
- Track the applicable due date, audit requirement and any revised or belated return window.
- Keep the filed return acknowledgment and supporting computation.
Avoid
- Assume a person with no tax payable never needs to file a return.
Illustrative example
Worked example: discovering missed interest income
Hypothetical facts (illustration only, not a real taxpayer): A salaried individual files her return on time. Five months after the end of the tax year she realises she forgot to report fixed deposit interest. Assessment has not been completed.
Return filed
She filed under Section 263(1).
Revision window
She is within twelve months from the end of the tax year and assessment is not complete, so Section 263(5) allows a revised return.
Action
She files a revised return including the interest, and pays any additional tax and interest due.
Outcome
- The omission is corrected through a revised return.
- Had she discovered it after the revision window, the updated return route (with its conditions and extra tax) would need to be examined.
Glossary
- Due date
- The date set by the Table in Section 263(1)(c) for the category of person filing the return.
- Belated return
- A return filed after the due date but within the period allowed by Section 263(4).
- Revised return
- A return filed to correct an omission or wrong statement in an earlier return, within the period allowed by Section 263(5).
- Updated return
- A return that can be filed within the extended period in Section 263(6), subject to its restrictions and additional tax.
Frequently asked questions
What is the due date for filing an income-tax return under the new Act?
It depends on the taxpayer category: 31st July for most other assessees; 31st August for a business/profession assessee (or partner) whose accounts are not required to be audited; 31st October for companies and assessees (or partners) whose accounts are required to be audited (where Section 172 doesn't apply); and 30th November where the provisions of Section 172 apply. Always confirm which row applies to your specific situation.
What is the deadline for filing a belated return?
Within nine months from the end of the relevant tax year, or before completion of the assessment, whichever is earlier, under Section 263(4).
How long do I have to revise a return after filing it?
Under the current text (as amended by the Finance Act, 2026), you can furnish a revised return within twelve months from the end of the relevant tax year, or before completion of the assessment, whichever is earlier - subject to Section 428(b).
What is an updated return and how long is the window to file one?
An updated return under Section 263(6) can be filed within forty-eight months from the end of the financial year succeeding the relevant tax year, whether or not an earlier return was filed - but it cannot be a loss return (with a narrow exception), cannot reduce tax liability or increase a refund, and is barred in several situations such as a pending assessment, a prior search/survey, or an already-filed updated return for that year.
Need help applying this provision to your situation?
Get help filing your income-tax return on timeLast updated 10 October 2026