Income-tax Act, 1961 | Historical industrial incentives
Section 80-I: Deduction for Profits from Industrial Undertakings, Ships and Hotels
Section 80-I of the Income-tax Act, 1961 provided a historical profit-linked deduction for specified industrial undertakings, ships, hotel businesses and repairs to ocean-going vessels or other powered craft. The relief was subject to strict commencement windows, formation requirements, eligible activities and limits on the number of assessment years.
What was Section 80-I?
Section 80-I, introduced with effect from 1 April 1981, allowed qualifying taxpayers to deduct a percentage of profits and gains derived from specified eligible activities when computing total income. It covered qualifying manufacturing or producing undertakings and cold-storage plants, certain ships, approved hotels and approved vessel-repair businesses. The undertaking or business had to meet the conditions applicable to its category and starting year.
The deduction was based on eligible profits, not gross turnover, investment or the full value of an industrial project. The statutory commencement windows are historical; opening a new factory, hotel or shipping business now does not by itself qualify for Section 80-I.
Historical Section 80-I deduction rates
| Category under the supplied statutory text | General deduction | Relevant company rate |
|---|---|---|
| Eligible industrial undertaking, ship or hotel under subsection (1) | 20% of eligible profits | 25% of eligible profits |
| Eligible undertaking, ship or hotel commencing on or after 1 April 1990 but before 1 April 1991 under subsection (1A) | 25% of eligible profits | 30% of eligible profits |
| Approved business repairing ocean-going vessels or powered craft | 20% under subsection (1), subject to applicable conditions | Check the precise applicable provision; the company-rate proviso identifies industrial undertakings, ships and hotels |
Rates depend on the precise category, year and statutory text in force for the assessment year. A taxpayer must not combine the general rate with the special subsection (1A) rate.
Eligibility requirements by business category
1. Industrial undertakings and cold-storage plants: subsection (2)
- The undertaking was not formed by splitting up or reconstructing an existing business, subject to the statutory exception linked to Section 33B.
- It was not formed by transferring previously used machinery or plant, subject to the statutory explanations and the limited 20% tolerance.
- It manufactured or produced eligible articles or things, or operated cold-storage plants, within the prescribed historical commencement window. The Eleventh Schedule restriction and small-scale undertaking exception were relevant.
- Where manufacturing or production was involved, it ordinarily employed at least 10 workers with power or at least 20 workers without power.
2. Ships: subsection (3)
The ship had to be owned by an Indian company, wholly used in its business, not previously owned or used in Indian territorial waters by an Indian resident, and first brought into use within the prescribed historical period.
3. Hotel businesses: subsection (4)
The hotel business was subject to restrictions on splitting or reconstruction, transfer of previously used hotel buildings or plant, ownership by an Indian registered company with paid-up capital of at least Rs. 5,00,000, Central Government approval and the historical operating-start window. The original text below should be consulted for the exact year-specific conditions.
4. Repairs to ocean-going vessels and other powered craft: subsection (4A)
The business had to be carried on by an Indian company, satisfy the new-business and machinery restrictions, commence the relevant repair work after 31 March 1983 and before 1 April 1988, and have the prescribed Central Government approval.
How many assessment years did the deduction run?
Under subsection (5), the usual period was the initial assessment year plus seven immediately succeeding assessment years (eight assessment years in total). The historical text prescribed category-specific variations:
- Co-operative society: Initial year plus nine succeeding years, ordinarily ten years in total.
- Vessel-repair business: Initial year plus four succeeding years, ordinarily five years in total.
- Specified industrial undertakings, ships and hotels commencing between 1 April 1990 and 31 March 1991: Initial year plus nine succeeding years, ordinarily ten years in total.
- Co-operative society within that special commencement group: Initial year plus eleven succeeding years, ordinarily twelve years in total.
The initial assessment year was linked to the year the undertaking began manufacture or production or cold storage, the ship was first used, the hotel started functioning, or the qualifying vessel-repair work commenced.
Computation, audit and anti-avoidance safeguards
Separate-source computation: subsection (6)
For subsequent years, eligible profits were determined on the statutory assumption that the qualifying undertaking, ship or business was the assessee's only source of income during the relevant period. The rule required careful computation and could affect how losses and earlier years were considered.
Audit report: subsection (7)
For an eligible industrial undertaking owned by a taxpayer other than a company or co-operative society, the provision required an audit of the undertaking's accounts by the specified accountant and furnishing the prescribed report with the return, as applicable to the historical assessment year.
Transfers at market value: subsection (8)
Where goods were transferred between the eligible business and another business of the same taxpayer at a non-market price, profits for the deduction could be recomputed as if the transfer occurred at market value. The Assessing Officer could use a reasonable basis in cases of exceptional difficulty.
Excess profits from close connections: subsection (9)
Where arrangements with a connected person produced more than ordinary profits, the Assessing Officer could determine the reasonable amount of profits attributable to the qualifying business for deduction purposes.
Government exclusion power: subsection (10)
The Central Government could, by Gazette notification following the required inquiry, exclude specified classes of industrial undertakings from the benefit from a notified date.
Important terms and statutory references
Industrial undertaking: For this provision, eligibility depended on the manufacturing, production or cold-storage activity and all conditions in subsection (2), not merely on describing a business as industrial.
Small-scale industrial undertaking: Subsection (2), Explanation 3 adopted the definition in the historical Section 80HHA(8) Explanation; the applicable historical investment and classification rules require year-specific verification.
Previously used machinery: Explanation 1 prescribed conditions for imported machinery used outside India; Explanation 2 deemed the restriction satisfied where transferred used plant or machinery did not exceed 20% of the total value of plant and machinery used in the business.
Market value: Subsection (8) defined it as the price the goods would ordinarily fetch on sale in the open market.
Eleventh Schedule: The historical schedule listed articles or things relevant to restrictions under subsection (2); an exception applied to qualifying small-scale undertakings.
Illustrative historical calculation
Assume a qualifying non-company industrial undertaking earned Rs. 12,00,000 of eligible profits in a year to which the general 20% rate applied. The starting deduction would be Rs. 2,40,000, subject to the actual assessment-year law, profit computation, available gross total income and compliance conditions. For a qualifying company under the general 25% rate, the corresponding starting figure would be Rs. 3,00,000. These figures are examples of historical rules, not current-year deduction claims.
Relationship with other industrial incentives
Section 80-I should be distinguished from the separate incentive provisions of Sections 80-IA, 80-IAB and 80-IAC, each of which had or has its own statutory scope, dates and conditions. The introduction of later incentives did not make the original Section 80-I universally available for newly established undertakings.
Original Section 80-I provisions and legislative notes
The following original statutory text and amendment notes are preserved from the uploaded webpage for historical reference. This transcription is not a substitute for the authoritative, assessment-year-specific statute; typographical errors in the supplied extract may remain.
Read full historical statutory extract and amendment notes
1(1) Where the gross total income of an assessee includes any profits and gains derived from an industrial undertaking or a ship or the business of a hotel 2 or the business of repairs to ocean-going vessels or other powered craft, to which this section applies, there shall, in accordance with and subject to the provisions of this section, be allowed, in computing the total income of the assessee, a deduction from such profits and gains of an amount equal to twenty per cent. thereof:
Provided that in the case of an assessee, being a company, the provisions of this sub-section 3 shall have effect in relation to profits and gains derived from an industrial undertaking or a ship or the business of a hotel as if for the words twenty per cent., the words twenty-five per cent. had been substituted.
4 (1A) Notwithstanding anything contained in sub-section (1), in relation to any profits and gains derived by an assessee from
(i) an industrial undertaking which begins to manufacture or produce articles or things or to operate its cold storage plant or plants; or
(ii) a ship which is first brought into use; or
(iii) the business of a hotel which starts functioning, on or after the 1st day of April, 1990, 5 but before the 1st day of April, 1991, there shall, in accordance with and subject to the provisions of this section, be allowed in computing the total income of the assessee, a deduction from such profits and gains of an amount equal to twenty-five per cent. thereof:
Provided that in the case of an assessee, being a company, the provisions of this sub-section shall have effect in relation to profits and gains derived from an industrial undertaking or a ship or the business of a hotel as if for the words twenty-five per cent., the words thirty per cent. had been substituted.
(2) This section applies to any industrial undertaking which fulfils all the following conditions, namely:
(i) it is not formed by the splitting up, or the reconstruction, of a business already in existence;
(ii) it is not formed by the transfer to a new business of machinery or plant previously used for any purpose;
(iii) it manufactures or produces any article or thing, not being any article or thing specified in the list in the Eleventh Schedule, or operates one or more cold storage plant or plants, in any part of India, and begins to manufacture or produce articles or things or to operate such plant or plants, at any time within the period of 6 ten years next following the 31st day of March, 1981, or such further period as the Central Government may, by notification in the Official Gazette, specify with reference to any particular industrial undertaking;
(iv) in a case where the industrial undertaking manufactures or produces articles or things, the undertaking employs ten or more workers in a manufacturing process carried on with the aid of power, or employs twenty or more workers in a manufacturing process carried on without the aid of power:
Provided that the condition in clause (i) shall not apply in respect of any industrial undertaking which is formed as a result of the re-establishment, reconstruction or revival by the assessee of the business of any such industrial undertaking as is referred to in section 33B, in the circumstances and within the period specified in that section:
Provided further that the condition in clause (iii) shall, in relation to a small-scale industrial undertaking, apply as if the words not being any article or thing specified in the list in the Eleventh Schedule had been omitted.
Explanation 1.For the purposes of clause (ii) of this sub-section, any machinery or plant which was used outside India by any person other than the assessee shall not be regarded as machinery or plant previously used for any purpose, if the following conditions are fulfilled, namely:
(a) such machinery or plant was not, at any time previous to the date of the installation by the assessee, used in India;
(b) such machinery or plant is imported into India from any country outside India; and
(c) no deduction on account of depreciation in respect of such machinery or plant has been allowed or is allowable under the provisions of this Act in computing the total income of any person for any period prior to the date of the installation of the machinery or plant by the assessee.
Explanation 2.Where in the case of an industrial undertaking, any machinery or plant or any part thereof previously used for any purpose is transferred to a new business and the total value of the machinery or plant or part so transferred does not exceed twenty per cent of the total value of the machinery or plant used in the business, then, for the purposes of clause (ii) of this sub-section, the condition specified therein shall be deemed to have been complied with.
Explanation 3.For the purposes of this sub-section, small-scale industrial undertaking shall have the same meaning as in clause (b) of the Explanation below sub-section (8) of section 80HHA.
(3) This section applies to any ship, where all the following conditions are fulfilled, namely:
(i) it is owned by an Indian company and is wholly used for the purposes of the business carried on by it;
(ii) it was not, previous to the date of its acquisition by the Indian company, owned or used in Indian territorial waters by a person resident in India; and
(iii) it is brought into use by the Indian company at any time within the period of 7 ten years next following the 1st day of April, 1981.
(4) This section applies to the business of any hotel, where all the following conditions are fulfilled, namely:
(i) the business of the hotel is not formed by the splitting up, or the
reconstruction, of a business already in existence or by the transfer to a new
business of a building previously used as a hotel or of any machinery or plant
previously used for any purpose;
(ii) the business of the hotel is owned and carried on by a company registered
in India with a paid-up capital of not less than five hundred thousand rupees;
(iii) the hotel is for the time being approved for the purposes of this sub-section by the Central Government;
(iv) the business of the hotel starts functioning after the 31st day of
March, 1981, but 8 before the 1st day of April, 9 1991
10 (4A) This section applies to the business of repairs to ocean-going vessels
or other powered craft which fulfils all the following conditions, namely:
(i) the business is not formed by the splitting up, or the reconstruction, of a business already in existence;
(ii) it is not formed by the transfer to a new business of machinery or plant previously used for any purpose;
(iii) it is carried on by an Indian company and the work by way of repairs to ocean-going vessels or other powered craft has been commenced by such company after the 31st day of March, 1983, but before the 1st day of April, 1988; and
(iv) it is for the time being approved for the purposes of this sub-section by the Central Government.
(5) The deduction specified in sub-section (1) shall be allowed in computing the total income in respect of the assessment year relevant to the previous year in which the industrial undertaking begins to manufacture or produce articles or things, or to operate its cold storage plant or plants or the ship is first brought into use or the business of the hotel starts functioning 10 or the company commences work by way of repairs to ocean-going vessels or other powered craft (such assessment year being hereafter in this section referred to as the initial assessment year) and each of the seven assessment years immediately succeeding the initial assessment year:
Provided that in the case of an assessee, being a co-operative society, the provisions of this sub-section shall have effect as if for the words seven assessment years, the words nine assessment years had been substituted:
10 Provided further that in the case of an assessee carrying on the business of repairs to ocean-going vessels or other powered craft, the provisions of this sub-section shall have effect as if for the words seven assessment years, the words four assessment years had been substituted: 11 Provided also that in the case of
(i) an industrial undertaking which begins to manufacture or produce articles or things or to operate its cold storage plant or plants; or
(ii) a ship which is first brought into use; or
(iii) the business of a hotel which starts functioning, on or after the 1st day of April, 1990 12 but before the 1st day of April, 1991, provisions of this sub-section shall have effect as if for the words seven assessment years, the words nine assessment years had been substituted:
Provided also that in the case of an assessee, being a co-operative society, deriving profits and gains from an industrial undertaking or a ship or a hotel referred to in the third proviso, the provisions of that proviso shall have effect as if for the words nine assessment years, the words eleven assessment years had been substituted.
(6) Notwithstanding anything contained in any other provision of this Act, the profits and gains of an industrial undertaking or a ship or the business of a hotel 10 or the business of repairs to ocean-going vessels or other powered craft to which the provisions of sub-section (1) apply shall, for the purposes of determining the quantum of deduction under sub-section (1) for the assessment year immediately succeeding the initial assessment year or any subsequent assessment year, be computed as if such industrial undertaking or ship or the business of the hotel 10 or the business of repairs to ocean-going vessels or other powered craft were the only source of income of the assessee during the previous years relevant to the initial assessment year and to every subsequent assessment year up to and including the assessment year for which the determination is to be made.
(7) Where the assessee is a person other than a company or a co-operative
society, the deduction under sub-section (1) from profits and gains derived from
an industrial undertaking shall not be admissible unless the accounts of the
industrial undertaking for the previous year relevant to the assessment year for
which the deduction is claimed have been audited by an accountant, as defined in
the Explanation below sub-section (2) of section 288, and the assessee
furnishes, along with his return of income, the report of such audit in the
prescribed form duly signed and verified by such accountant.
(8) Where any goods held for the purposes of the business of the industrial
undertaking or the hotel or the operation of the ship 13 or the business of
repairs to ocean-going vessels or other powered craft are transferred to any
other business carried on by the assessee, or where any goods held for the
purposes of any other business carried on by the assessee are transferred to the
business of the industrial undertaking or the hotel or the operation of the ship
13 or the business of repairs to ocean-going vessels or other powered craft and,
in either case, the consideration, if any, for such transfer as recorded in the
accounts of the business of the industrial undertaking or the hotel or the
operation of the ship 13 or the business of repairs to ocean-going vessels or
other powered craft does not correspond to the market value of such goods as on
the date of the transfer, then, for the purposes of the deduction under this
section, the profits and gains of the industrial undertaking or the business of
the hotel or the operation of the ship 13 or the business of repairs to
ocean-going vessels or other powered craft shall be computed as if the transfer,
in either case, had been made at the market value of such goods as on that date:
Provided that where, in the opinion of the 14 Assessing Officer, the computation of the profits and gains of the industrial undertaking or the business of the hotel or the operation of the ship 13 or the business of repairs to ocean-going vessels or other powered craft in the manner hereinbefore specified presents exceptional difficulties, the 14 Assessing Officer may compute such profits and gains on such reasonable basis as he may deem fit.
Explanation.-In this sub-section, "market value", in relation to any goods, means the price that such goods would ordinarily fetch on sale in the open market.
(9) Where it appears to the 14 Assessing Officer that, owing to the close connection between the assessee carrying on the business of the industrial undertaking or the hotel or the operation of the ship 13 or the business of repairs to ocean-going vessels or other powered craft to which this section applies and any other person, or for any other reason, the course of business between them is so arranged that the business transacted between them produces to the assessee more than the ordinary profits which might be expected to arise in the business of the industrial undertaking or the hotel or the operation of the ship 13 or the business of repairs to ocean-going vessels or other powered craft, the 14 Assessing Officer shall, in computing the profits and gains of the industrial undertaking or the hotel or the ship 13 or the business of repairs to ocean-going vessels or other powered craft for the purposes of the deduction under this section, take the amount of profits as may be reasonably deemed to have been derived therefrom.
(10) The Central Government may, after making such inquiry as it may think fit, direct, by notification in the Official Gazette, that the exemption conferred by this section shall not apply to any class of industrial undertakings with effect from such date as it may specify in the notification.
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1. Ins. by Act 44 of 1980, s. 16 (w.e.f. 1-4-1981).
2. Ins. by Act 11 of 1983, s. 25 (w.e.f. 1-4-1984).
3. Subs. by s. 25, ibid., for shall have effect (w.e.f. 1-4-1984).
4. Ins. by Act 12 of 1990, s. 24 (w.e.f. 1-4-1990).
5. Ins. by Act 49 of 1991, s. 31 (w.e.f. 1-4-1991).
6. Subs. by, s. 31, ibid., for fourteen years (w.e.f. 1-4-1991). Earlier
fourteen years was subs. for nine years by Act 12 of 1990 s. 24 (w.e.f.
1-4-1990) which was earlier subs. for four years by Act 32 of 1985, s. 20 (w.e.f.
1-4-1985).
7. Subs. by 49 of 1991, s. 31, for fourteen years (w.e.f. 1-4-1991). Earlier
fourteen years was subs. for nine years by Act 12 of 1990 s. 24 (w.e.f.
1-4-1990) which was earlier substituted for four years by Act 32 of 1985, s. 20
(w.e.f. 1-4-1985).
8. Subs. by Act 12 of 1990, s. 24, for before the first day of April, 1990 (w.e.f.
1-4-1990). Earlier 1990 was substituted for 1985 by 32 of 1985, s. 20 (w.e.f.
1-4-1985).
9. Subs. by Act 49 of 1991, s. 31, for 1995 (w.e.f. 1-4-1991).
10. Ins. by Act 11 of 1983, s. 25 (w.e.f. 1-4-1984).
11. Ins. by Act 12 of 1990, s. 24 (w.e.f. 1-4-1990).
12. Ins. by Act 49 of 1991, s. 31 (w.e.f. 1-4-1991).
13. Ins. by Act 11 of 1983, s. 25 (w.e.f. 1-4-1984).
14. Subs. by Act 4 of 1988, s. 2, for "Income-tax Officer" (w.e.f. 1-4-1988).
1. Ins. by Act 44 of 1980, s. 16 (w.e.f. 1-4-1981).
2. Ins. by Act 11 of 1983, s. 25 (w.e.f. 1-4-1984).
3. Subs. by s. 25, ibid., for shall have effect (w.e.f. 1-4-1984).
4. Ins. by Act 12 of 1990, s. 24 (w.e.f. 1-4-1990).
5. Ins. by Act 49 of 1991, s. 31 (w.e.f. 1-4-1991).
6. Subs. by, s. 31, ibid., for fourteen years (w.e.f. 1-4-1991). Earlier
fourteen years was subs. for nine years by Act 12 of 1990 s. 24 (w.e.f.
1-4-1990) which was earlier subs. for four years by Act 32 of 1985, s. 20 (w.e.f.
1-4-1985).
7. Subs. by 49 of 1991, s. 31, for fourteen years (w.e.f. 1-4-1991). Earlier
fourteen years was subs. for nine years by Act 12 of 1990 s. 24 (w.e.f.
1-4-1990) which was earlier substituted for four years by Act 32 of 1985, s. 20
(w.e.f. 1-4-1985).
8. Subs. by Act 12 of 1990, s. 24, for before the first day of April, 1990 (w.e.f.
1-4-1990). Earlier 1990 was substituted for 1985 by 32 of 1985, s. 20 (w.e.f.
1-4-1985).
9. Subs. by Act 49 of 1991, s. 31, for 1995 (w.e.f. 1-4-1991).
10. Ins. by Act 11 of 1983, s. 25 (w.e.f. 1-4-1984).
11. Ins. by Act 12 of 1990, s. 24 (w.e.f. 1-4-1990).
12. Ins. by Act 49 of 1991, s. 31 (w.e.f. 1-4-1991).
13. Ins. by Act 11 of 1983, s. 25 (w.e.f. 1-4-1984).
14. Subs. by Act 4 of 1988, s. 2, for "Income-tax Officer" (w.e.f. 1-4-1988).
Frequently asked questions
Can a factory newly established in 2026 claim Section 80-I?
No deduction should be claimed merely by invoking this historical section. Its eligibility windows concern earlier decades. Any current incentive must be independently established under the legislation applicable to the tax year.
Was the Section 80-I deduction 20% or 25%?
Under the general historical rule it was 20%, with a 25% rate for specified company profits. A special rule prescribed 25% and 30% respectively for qualifying activities commencing during the stated 1990-91 window.
Were hotel businesses eligible?
Yes, but only approved hotel businesses meeting the historical company-ownership, capital, formation and commencement requirements.
Could previously used machinery be included?
There were statutory exceptions, including qualifying imported machinery previously used abroad and a 20% value tolerance for certain transferred used machinery.
Did every undertaking receive the deduction for eight years?
No. The general eight-year period was modified for co-operative societies, vessel-repair businesses and certain activities commencing in the special 1990-91 window.
Official legal resources
Check the authoritative legislation and historical amendments through India Code, the Income Tax Department, the Gazette of India and the Income Tax e-Filing Portal. Historical assessment disputes should be reviewed against the exact law, notifications and judicial decisions applicable to the relevant year.
General legal information; not an assurance of eligibility for any particular assessment year.