Indian income-tax law | Affordable housing incentives
Section 80-IBA: 100% Deduction for Profits from Affordable Housing Projects
Section 80-IBA of the Income-tax Act, 1961 provided a 100% deduction of eligible profits from developing and building qualifying affordable housing projects, subject to strict conditions for approval dates, unit sizes, land area, project completion, allotment and separate accounts.
What is the deduction under Section 80-IBA?
Subsection (1) allowed an assessee whose gross total income included profits and gains from the business of developing and building a qualifying housing project to deduct 100% of the profits and gains derived from that project. The relief was a project-profit deduction, not a deduction from the selling price of each flat or a tax benefit directly available to homebuyers.
The housing project had to satisfy the applicable version of subsection (2). The law was amended several times, including changes to the approval cut-off, project completion period, unit carpet-area thresholds and minimum land and utilisation conditions. Different conditions can apply depending on the date of approval; a single modern checklist must not be applied retrospectively to every project.
Eligibility and conditions for affordable housing projects
1. Approval window and competent authority
The project must have been approved by the authority legally empowered to approve its building plan. The original provision required approval after 1 June 2016, and later amendments extended the last eligible approval date to 31 March 2022. For repeated approvals, the first building-plan approval date is material under the statutory deeming rule. The detailed conditions differ for projects approved before and after 1 September 2019.
2. Completion deadline
For the earlier regime shown in the uploaded text, completion within five years from the relevant approval date was required. The project as a whole must receive the completion certificate in writing from the competent authority. For affected projects, pandemic-related statutory extensions and applicable amendments should be checked before determining whether a deadline was breached.
3. Unit carpet area and project location
For earlier approvals, the uploaded statutory version prescribed 30 square metres in Chennai, Delhi, Kolkata or Mumbai and 60 square metres elsewhere. Later amendments introduced a different regime for projects approved on or after 1 September 2019, broadly using 60 square metres in specified metropolitan cities and 90 square metres in other places, together with a stamp-duty-value ceiling for residential units. The precise metropolitan-area definition, valuation test and operative dates must be checked against the relevant year's legislation.
4. Land area, commercial space and floor area ratio
The older text prescribed a minimum plot size of 1,000 square metres in the four named metropolitan cities and 2,000 square metres elsewhere, with commercial carpet area limited to 3% of aggregate carpet area. It also required use of at least 90% of permissible floor area ratio in those cities and 80% elsewhere. Later statutory amendments modified the framework for qualifying newer approvals; verify the correct conditions for the particular project rather than relying on these historical thresholds alone.
5. One project per plot and allotment restrictions
The older regime required the housing project to be the only housing project on the specified plot. Where a unit was allotted to an individual, another unit in the same project could not be allotted to that individual, their spouse or minor children. Allotment records and buyer declarations are important supporting evidence.
6. Separate accounts and genuine development activity
The assessee must maintain separate books of account for the eligible housing project. Subsection (3) excluded an assessee who merely executes a housing project under a works contract awarded by another person, including government bodies. Whether the assessee is a developer rather than a works contractor depends on the facts and contractual responsibilities.
Important statutory definitions
Carpet area
Section 80-IBA(6)(a) cross-referenced Section 2(k) of the Real Estate (Regulation and Development) Act, 2016 (RERA). Under RERA, carpet area broadly means the net usable floor area of an apartment, excluding external walls, service shafts, exclusive balcony or verandah and exclusive open terrace, but including internal partition walls.
Competent authority
The authority empowered by law to approve the building plan. Its written completion certificate is important to the statutory completion test.
Floor area ratio (FAR)
The ratio of the total covered or plinth area on all floors to the area of the plot, as defined by the section and relevant local planning rules.
Housing project and residential unit
A housing project predominantly consists of residential units with permitted facilities and amenities. A residential unit is an independent dwelling with separate living, cooking and sanitary facilities and independent access without passing through another household's living space.
How to calculate the Section 80-IBA deduction
Example: Assume an eligible housing project has taxable project revenue of Rs. 15 crore and allowable project costs of Rs. 12 crore, resulting in Rs. 3 crore of eligible project profit. Subject to compliance with all conditions, the historical Section 80-IBA deduction could be Rs. 3 crore. Non-eligible projects, other business income, disallowed expenses and project-wise adjustments must be separately considered.
Completion failure, recapture and double deductions
Recapture: Under subsection (4), where the project was not completed within the prescribed period and deductions had already been allowed, the total deductions previously allowed were deemed taxable business income in the previous year in which the completion period expired. This makes documentary proof of the completion certificate critical.
No overlapping relief: Subsection (5) prevented the same eligible project profits from being deducted again under another provision. Maintain project-wise financial statements, approval documents, land records, plans, carpet-area computations, FAR certifications, allotment records and completion certificates.
Section 80-IBA compared with Section 80-IB(10)
Section 80-IB(10) was an earlier housing-project incentive with different approval periods and tests. Section 80-IBA was introduced later specifically for affordable housing projects. Their requirements must not be combined, and the same profits cannot receive duplicate deductions.
Current legal position from April 2026
The Income-tax Act, 2025 came into force on 1 April 2026, replacing the general 1961 Act framework for subsequent tax years, subject to savings and transitional provisions. The historical Section 80-IBA rules remain relevant to eligible earlier projects and the treatment of past claims, assessments and recapture. Whether relief is available for a particular year must be determined under the applicable legislation and transition rules. This article does not assert a new equivalent section number without checking the enacted text.
Original Section 80-IBA text and legislative notes
The following text and amendment notes are preserved from the uploaded webpage. They represent an earlier historical version and do not incorporate every later amendment. Original footnote markers and wording are retained for reference; use an official consolidated statute for formal legal reliance.
Expand original statutory text and amendment notes
1(1) Where the gross total income of an assessee includes any profits and gains derived from the business of developing and building housing projects, there shall, subject to the provisions of this section, be allowed, a deduction of an amount equal to hundred per cent of the profits and gains derived from such business.
(2) For the purposes of sub-section (1), a housing project shall be a project which fulfils the following conditions, namely:-
(a) the project is approved by the competent authority after the 1st day of June, 2016, but on or before the 31st day of March, 2 2020;
(b) the project is completed within a period of 3 five years from the date of approval by the competent authority:
Provided that,-
(i) where the approval in respect of a housing project is obtained more than
once, the project shall be deemed to have been approved on the date on which the
building plan of such housing project was first approved by the competent
authority; and
(ii) the project shall be deemed to have been completed when a certificate of completion of project as a whole is obtained in writing from the competent authority;
(c) the 4 carpet area of the shops and other commercial establishments included in the housing project does not exceed three per cent. of the aggregate 4 carpet area;
(d) the project is on a plot of land measuring not less than-
(i) one thousand square metres, where the project is located within the cities of Chennai, Delhi, Kolkata or Mumbai 5 ***; or
(ii) two thousand square metres, where the project is located in any other place;
(e) the project is the only housing project on the plot of land as specified in clause (d);
(f) the 4 carpet area of the residential unit comprised in the housing project does not exceed-
(i) thirty square metres, where the project is located within the cities of Chennai, Delhi, Kolkata or Mumbai 5 ***; or
(ii) sixty square metres, where the project is located in any other place;
(g) where a residential unit in the housing project is allotted to an individual, no other residential unit in the housing project shall be allotted to the individual or the spouse or the minor children of such individual;
(h) the project utilises-
(i) not less than ninety per cent of the floor area ratio permissible in respect of the plot of land under the rules to be made by the Central Government or the State Government or the local authority, as the case may be, where the project is located within the cities of Chennai, Delhi, Kolkata or Mumbai 6 *** , or
(ii) not less than eighty per cent of such floor area ratio where such project is located in any place other than the place referred to in sub-clause (i); and
(i) the assessee maintains separate books of account in respect of the housing project.
(3) Nothing contained in this section shall apply to any assessee who executes the housing project as a works-contract awarded by any person (including the Central Government or the State Government).
(4) Where the housing project is not completed within the period specified under clause (b) of sub-section (2) and in respect of which a deduction has been claimed and allowed under this section, the total amount of deduction so claimed and allowed in one or more previous years, shall be deemed to be the income of the assessee chargeable under the head "Profits and gains of business or profession" of the previous year in which the period for completion so expires.
(5) Where any amount of profits and gains derived from the business of developing and building housing projects is claimed and allowed under this section for any assessment year, deduction to the extent of such profit and gains shall not be allowed under any other provisions of this Act.
(6) For the purposes of this section,-
7 (a) "carpet area" shall have the same meaning as assigned to it in clause (k) of section 2 of the Real Estate (Regulation and Development) Act, 2016 (16 of 2016).
(b) "competent authority" means the authority empowered to approve the building plan by or under any law for the time being in force;
(c) "floor area ratio" means the quotient obtained by dividing the total covered area of plinth area on all the floors by the area of the plot of land;
(d) "housing project" means a project consisting predominantly of residential units with such other facilities and amenities as the competent authority may approve subject to the provisions of this section;
(e) "residential unit" means an independent housing unit with separate
facilities for living, cooking and sanitary requirements, distinctly separated
from other residential units within the building, which is directly accessible
from an outer door or through an interior door in a shared hallway and not by
walking through the living space of another household.
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1. Ins. by Act 28 of 2016, s. 44 (w.e.f. 1-4-2017).
2. Subs. by Act 7 of 2019, s. 7, for "2019" (w.e.f. 1-4-2020).
3. Subs. by Act 7 of 2017, s. 37, for "three years" (w.e.f. 1-4-2018).
4. Subs. by 37, ibid., for "built-up area" (w.e.f. 1-4-2018).
5. The words "or within the distance, measured aerially, of twenty-five
kilometres from the municipal limits of these cities" omitted by s. 37, ibid., (w.e.f.
1-4-2018).
6. The words "or within the distance, measured aerially, of twenty-five
kilometres from the municipal limits of these cities" omitted by Act 7 of 2017,
s. 37 (w.e.f. 1-4-2018).
7. Subs. by s. 37, ibid., for clause (a) (w.e.f. 1-4-2018).
Frequently asked questions
Is the deduction 100% of housing project profits?
Yes, for profits derived from a qualifying project that meets all applicable statutory conditions. It is not 100% of sales revenue.
Can a housing project approved after 31 March 2022 qualify?
The historical approval window under Section 80-IBA ended on 31 March 2022. A later approval does not qualify under that historical window merely because construction concerns affordable housing.
Does RERA carpet area include internal partition walls?
Yes. The RERA definition includes internal partition walls but excludes specified external walls and balcony or terrace areas.
What happens if the completion deadline is missed?
The statutory recapture rule can bring deductions already allowed back into taxable business income for the year in which the completion period expires.
Can a works contractor claim this deduction?
No, where the assessee merely executes the housing project as a works contract awarded by another person within the meaning of subsection (3).
Are the conditions identical for every project?
No. Approval dates and amendments matter, especially changes effective for approvals on or after 1 September 2019.
Official legal references
Consult India Code for the Income-tax Act, 1961, the Income-tax Act, 2025 and RERA; the Income Tax Department for statutory materials and guidance; the Gazette of India for Finance Acts and notifications; and the Income Tax e-Filing Portal for filing guidance.
Educational information only. Verify the assessment-year-specific statutory text, official approvals and judicial interpretations before claiming a deduction.