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Income-tax Act, 2025 | Section 90

Section 90 - Meaning of "adjusted", "cost of improvement" and "cost of acquisition"

This section defines and standardises cost of acquisition and cost of improvement, including pre-base-date choices, self-generated assets and nil-cost cases.

Reviewed by CA Nikhil Gupta · Updated 9 October 2026

Section 90: operativeEffective 1 April 2026Tax Year 2026-27 onwardReviewed 8 October 2026
Current-law control

Section 90 is presented using the consolidated Income-tax Act, 2025 as amended by the Finance Act, 2026. The general commencement date is 1 April 2026. Earlier years and saved proceedings may remain governed by the Income-tax Act, 1961 and the repeal/savings framework.

2-minute professional decode

This section defines and standardises cost of acquisition and cost of improvement, including pre-base-date choices, self-generated assets and nil-cost cases.

Professional checkpoint: Apply the provision only after checking the defined person, tax year, evidence, thresholds and any connected Rule or Schedule.

Who should test this section?

Section 90 matters to investors, property owners, promoters, companies, firms and advisers where the transaction involves meaning of “adjusted”, “cost of improvement” and “cost of acquisition”; the charge, computation and relief steps should be separated.

Evidence to retain

The section 90 file should preserve acquisition and transfer instruments, valuation or stamp records, payment evidence, holding-period material and every document that supports the treatment of meaning of “adjusted”, “cost of improvement” and “cost of acquisition”.

1961 Act bridge

Legacy provisionLegacy headingMapping
55Meaning of “adjusted”, “cost of improvement” and “cost of acquisition”.Renumbered / mapped

The bridge is a research aid. Legacy case law carries over only after the current wording and transition rules are matched.

Rules and forms linked to this section

No provision-specific Rule was independently mapped from the current Rules register for this section. That does not mean the wider Rules are irrelevant.

Worked application

A capital asset was acquired through a special mode. Do not use purchase price by habit; determine cost and improvement under the applicable section 90 limb and carry forward the predecessor cost/date rules where the statute requires them.

Common mistake

For section 90, do not jump from sale proceeds to a capital-gain number: first identify the transfer/charging event, then consideration, cost, timing and any exemption or rollover condition relevant to meaning of “adjusted”, “cost of improvement” and “cost of acquisition”.

Compliance approach

Identify the statutory trigger for section 90, lock the relevant tax year, reconcile the facts to the operative sub-section, preserve the evidence trail and separately test every linked Rule, Form, Schedule and exception before finalising the return position.

Numeric / timing checkpoints in the operative text

Related provisions

Current statutory text

90. (1) For the purposes of sections 72 and 73, “cost of improvement”,— (a) in relation to a capital asset being goodwill or any intangible asset of a business, or a right to manufacture, produce or process any article or thing, or right to carry on any business or profession, or any other right, shall be taken to be nil; and (b) in relation to any other capital asset,— (i) if the capital asset became the property of the previous owner or the assessee before the 1st April, 2001, means all expenditure of a capital nature incurred on or after the said date in making any additions or alterations to the capital asset by the previous owner or the assessee; and (ii) in any other case, means all expenditure of a capital nature incurred in making any additions or alterations to the capital asset by the assessee after it became his property, and, where the capital asset became the property of the assessee by any of the modes specified in section 73 (Table: Sl. No. 1), by the previous owner. (2) For the purposes of sub-section (1)(b), the cost of improvement does not include any expenditure which is deductible in computing the income chargeable under the head “Income from house property”, “Profits and gains of business or profession” or “Income from other sources”. (3) For the purposes of sections 72 and 73, “cost of acquisition” of a capital asset (being goodwill of a business or profession, or a trade mark or brand name associated with a business or profession, or any other intangible asset, or a right to manufacture, produce or process any article or thing, or a right to carry on any business or profession, or tenancy rights, or stage carriage permits, or loom hours, or any other right) means— (a) the purchase price, if acquisition of such asset by the assessee is by purchase from the previous owner; and (b) the purchase price for the previous owner, in the case covered in section 73 (Table: Sl. No. 1), where such asset was acquired by purchase by the previous owner as defined in sub-section (2) of the said section; and (c) nil, in any other case. (4) For the purposes of sub-section (3)(a) or (b), if— (a) the capital asset is goodwill of a business or profession; and (b) the assessee has obtained a deduction on account of depreciation under section 32(1) of the Income-tax Act, 1961 (43 of 1961) in a tax year preceding the tax year commencing on the 1st April, 2020, then the total amount of depreciation obtained before the tax year commencing on the 1st April, 2020 shall be reduced from the amount of purchase price. (5) For the purposes of sections 72 and 73, and subject to the provisions of sub- section (9)(a) and (b), “cost of acquisition” shall be as per sub-section (6), in a case where, by virtue of holding a capital asset, being a share or any other security, within the meaning of section 2(h) of the Securities Contracts (Regulation) Act, 1956 (42 of 1956) (herein referred to as the financial asset), the assessee— (a) becomes entitled to subscribe to any additional financial asset; or (b) is allotted any additional financial asset without any payment. (6) In a case referred to in sub-section (5), “cost of acquisition”, in relation to— (a) the original financial asset, on the basis of which the assessee becomes entitled to any additional financial asset, means the amount actually paid for acquiring the original financial asset; (b) any right to renounce the said entitlement to subscribe to the financial asset, when such right is renounced by the assessee in favour of any person, shall be taken to be nil in the case of such assessee; (c) the financial asset, to which the assessee has subscribed on the basis of the said entitlement, means the amount actually paid by him for acquiring such asset; (d) the financial asset allotted to the assessee without any payment and on the basis of holding of any other financial asset, shall be taken to be nil; and (e) any financial asset purchased by any person in whose favour the right to subscribe to such asset has been renounced, means the total amount of the purchase price paid by him to the person renouncing such right and the amount paid by him to the company or institution, for acquiring such financial asset. (7) For the purposes of sections 72 and 73, “cost of acquisition”, subject to sub-section (9)(a) and (b), in relation to a long-term capital asset, being an equity share in a company or a unit of an equity oriented fund or a unit of a business trust referred to in section 198, acquired before the 1st February, 2018, shall be higher of— (a) the cost of acquisition of such asset; and (b) lower of— (i) the fair market value of such asset; and (ii) the full value of consideration received or accruing as a result of the transfer of the capital asset. (8) For the purposes of sub-section (7),— (a) “Cost Inflation Index”, shall have the meaning assigned to it in section 72(8)(a); (b) “fair market value” means,— (i) in a case where the capital asset is listed on any recognised stock exchange as on the 31st January, 2018, the highest price of the capital asset quoted on such exchange on that date; (ii) in a case where there is no trading in such asset on such exchange on the 31st January, 2018, as mentioned in sub-clause (i) the high- est price of such asset on such exchange on a date immediately preceding the 31st January, 2018 when such asset was traded on such exchange shall be the fair market value; (iii) if the capital asset is a unit which is not listed on a recognised stock exchange as on the 31st January, 2018, the net asset value of such unit as on that date; (iv) if the capital asset is an equity share in a company which is— (A) not listed on a recognised stock exchange as on the 31st Janu- ary, 2018 but listed on such exchange on the date of transfer; (B) not listed on a recognised stock exchange as on the 31st Jan- uary, 2018, or which became the property of the assessee in consideration of share which is not listed on such exchange as on the 31st January, 2018 by way of transaction not regarded as transfer mentioned in section 70, but listed on such excha- nge subsequent to the date of transfer (where such transfer is in respect of sale of unlisted equity shares under an offer for sale to the public included in an initial public offer); (C) listed on a recognised stock exchange on the date of transfer and which became the property of the assessee in consideration of share which is not listed on such exchange as on the 31st January, 2018 by way of transaction not regarded as transfer mentioned in section 70, an amount which bears to the cost of acquisition the same proportion as Cost Inflation Index for the tax year 2017-18 bears to the Cost Inflation Index for the first year in which the asset was held by the assessee or for the year beginning on the 1st April, 2001, whichever is later. (9) For the purposes of sections 72 and 73, cost of acquisition in relation to any other capital asset,— (a) if the capital asset became the property of the assessee before the 1st April, 2001, subject to sub-section (10), shall be the cost of acquisition of the asset to the assessee or its fair market value on the 1st April, 2001, at the option of the assessee; (b) if the capital asset became the property of the assessee by any of the modes specified in section 73 (Table: Sl. No. 1), and the capital asset became the property of the previous owner before the 1st April, 2001, subject to sub-section (10), shall be the cost of the capital asset to the previous owner or its fair market value on the 1st April, 2001, at the option of the assessee; (c) if the capital asset became the property of the assessee on the distribution of the capital assets of a company on its liquidation and the assessee has been assessed to income-tax under the head “Capital gains” in respect of that asset under section 68, means the fair market value of the asset on the date of distribution; (d) if the capital asset, being a share or a stock of a company, became the property of the assessee on— (i) the consolidation and division of all or any of the share capital of the company into shares of larger amount than its existing shares; or (ii) the conversion of any shares of the company into stock; or (iii) the re-conversion of any stock of the company into shares; or (iv) the sub-division of any of the shares of the company into shares of smaller amount; or (v) the conversion of one kind of shares of the company into another kind, means the cost of acquisition of the asset calculated with reference to the cost of acquisition of the shares or stock from which such asset is derived. (10) In case of a capital asset referred to in sub-section (9)(a) and (b), being land or building, or both, the fair market value of such asset on the 1st April, 2001 for the said sub-section (9)(a) and (b) shall not exceed the stamp duty value, wherever available, of such asset as on the 1st April, 2001. (11) If the cost for which the previous owner acquired the property cannot be ascertained, the cost of acquisition to the previous owner shall be the fair market value on the date on which the capital asset became the property of the previous owner. (12) For the purposes of sections 72 and 73, cost of acquisition in relation to a capital asset— (a) being equity share or shares allotted to a shareholder of a recognised stock exchange in India under a scheme for demutualisation or cor- poratisation approved by the Securities and Exchange Board of India established under section 3 of the Securities and Exchange Board of India Act, 1992 (15 of 1992), shall be the cost of acquisition of his original membership of the exchange; (b) bring trading or clearing rights of the recognised stock exchange acquired by a shareholder who has been allotted equity share or shares under such scheme of demutualisation or corporatisation, shall be deemed to be nil.

Primary-source trail

Source status: full Section 90 statutory text in the local source corpus; reconciled to the current consolidated Act control on 8 October 2026.

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