Section 34 of the Income-tax Act, 1961: Conditions for Depreciation Allowance and Development Rebate
Section 34 historically prescribed conditions linked to depreciation and the development rebate. Its surviving text primarily addresses the reserve requirement and recovery of development rebate under Section 33, rather than creating a new deduction for current investments.
What does Section 34 mean?
Depreciation allowance is a tax deduction for qualifying wear and use of eligible business assets, governed historically by Section 32. Development rebate was an additional historical deduction for specified ships, machinery and plant under Section 33. Section 34 set out restrictions that applied to the latter deduction.
Section 34(3)(a): Development rebate reserve
As a general rule, the assessee had to debit an amount equal to 75% of the development rebate actually allowed to the profit and loss account and credit it to a reserve account. The statutory text permitted creation in the relevant or an earlier qualifying previous year, subject to the specified timing requirements.
The reserve was to be used for the undertaking's business during the following eight years, and not for distributing dividends or profits, remitting profits outside India, or creating assets outside India. Historical exceptions included certain electricity licensees and assets acquired or installed before 1 January 1958. For ships acquired after 28 February 1966, the text substituted 50% for 75%.
Section 34(3)(b): Sale or transfer within eight years
Where a ship, machinery or plant for which development rebate had been allowed was sold or otherwise transferred within eight years from the end of the previous year of acquisition or installation, the allowance could be treated as wrongly granted. Section 155(5) supplied the mechanism for consequential amendment of the assessment.
Specified exceptions covered pre-1958 assets, transfers to the Government or designated public authorities and Government companies, and qualifying amalgamation or succession covered by Section 33(3) or (4). Each exception is subject to its statutory conditions.
Key historical conditions at a glance
| Provision | Historical requirement or effect |
|---|---|
| Section 34(1) and (2) | Omitted with effect from 1 April 1988 |
| Section 34(3)(a) | Development rebate reserve generally 75%; qualifying ships acquired after 28 February 1966: 50% |
| Reserve use | Business purposes over eight years; restrictions on dividends and overseas remittances/assets |
| Section 34(3)(b) | Early transfer could trigger withdrawal of development rebate, subject to exceptions |
| Section 155(5) | Historical assessment-amendment mechanism following breach of transfer conditions |
Illustration of the historical reserve calculation
Suppose an eligible historical development rebate was Rs 1,00,000. Where the ordinary 75% reserve rule applied, the required reserve would be Rs 75,000. For a qualifying ship to which the 50% substitution applied, the reserve would be Rs 50,000. This is an illustration of the historical provision, not a claimable deduction for new assets in 2026.
Official legislation and reference sources
- Income Tax Department, Government of India - official tax guidance and legislation resources.
- India Code - central legislation and amendments.
- e-Gazette of India - notified legislation and statutory instruments.
For historical assessments, the law as applicable to the particular assessment year, relevant notifications and judicial interpretations should be verified before relying on the provision.
Frequently asked questions
Does Section 34 provide a fresh depreciation deduction today?
No. Sub-sections (1) and (2) of Section 34 were omitted with effect from 1 April 1988. Depreciation for the applicable historical years was primarily governed by Section 32, and current-year claims must be considered under the legislation applicable to that year.
What was the development rebate reserve requirement?
Section 34(3)(a) generally required a reserve equal to 75% of the development rebate actually allowed, subject to statutory exceptions and a 50% substitution for qualifying ships acquired after 28 February 1966.
What happened if an asset was transferred within eight years?
Section 34(3)(b) provided for withdrawal of the historical development rebate, subject to exceptions for certain government transfers and qualifying amalgamations or successions.
Is development rebate under Section 33 generally available for new investments in 2026?
No. Section 33 is a historical incentive and should not be presented as a general deduction for new investments. Current depreciation and investment incentives must be assessed under the applicable law.
Original statutory text and amendment history
The following historical wording and amendment notes have been retained from the original webpage for reference. Footnote markers and formatting reflect the source and are not a substitute for an authenticated statute.
Read the original Section 34 extract and amendment notes
1 * * * * *
(3) (a) The deduction referred to in section 33 shall not be allowed unless an
amount equal to seventy-five per cent.. of the development rebate to be actually
allowed is debited to the profit and loss account of 2 any previous year in
respect of which the deduction is to be allowed under sub-section (2) of that
section or any earlier previous year (being a previous year not earlier than the
year in which the ship was acquired or the machinery or plant was installed or
the ship, machinery or plant was first put to use) and credited to a reserve
account to be utilised by the assessee during a period of eight years next
following for the purposes of the business of the undertaking, other than-
(i) for distribution by way of dividends or profits; or
(ii) for remittance outside India as profits or for the creation of any asset
outside India:
Provided that this clause shall not apply where the assessee is a company, being
a licensee within the meaning of the Electricity (Supply) Act, 1948 (54 of
1948), or where the ship has been acquired or the machinery or plant has been
installed before the 1st day of January, 1958:
3 Provided further that where a ship has been acquired after the 28th day of February, 1966, this clause shall have effect in respect of such ship as if for the words "seventy-five", the word "fifty" had been substituted.
4 * * * * *
(b) If any ship, machinery or plant is sold or otherwise transferred by the assessee to any person at any time before the expiry of eight years from the end of the previous year in which it was acquired or installed, any allowance made under section 33 or under the corresponding provisions of the Indian Income-tax Act, 1922 (11 of 1922), in respect of that ship, machinery or plant shall be deemed to have been wrongly made for the purposes of this Act, and the provisions of sub-section (5) of section 155 shall apply accordingly:
Provided that this clause shall not apply-
(i) where the ship has been acquired or the machinery or plant has been installed before the 1st day of January, 1958; or
(ii) where the ship, machinery or plant is sold or otherwise transferred by the assessee to the Government, a local authority, a corporation established by a Central, State or Provincial Act or a Government company as defined in section 617 of the Companies Act, 1956 (1 of 1956); or
(iii) where the sale or transfer of the ship, machinery or plant is made in
connection with the amalgamation or succession, referred to in sub-section (3)
or sub-section (4) of section 33.
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1. Sub-sections (1) and (2) omitted by 46 of 1986, s. 6 (w.e.f. 1-4-1988).
2. Subs. by Act 12 of 1990, s. 11, for "the relevant previous year" (w.e.f. 1-4-1962).
3. Ins. by Act 13 of 1966, s. 9 (w.e.f. 1-4-1966).
4. The Explanation omitted by Act 12 of 1990, s. 11 (w.e.f. 1-4-1962).