Section 72 of Income Tax Act 1961: Carry Forward and Set Off of Business Losses
Section 72 of the Income-tax Act, 1961 governed the carry forward and set off of ordinary business or professional losses for assessment years under that Act. From 1 April 2026, the Income-tax Act, 2025 applies to tax years beginning on or after that date, subject to its repeal and saving provisions for losses and proceedings originating under the 1961 Act.
- It dealt with non-speculation loss under the head "Profits and gains of business or profession".
- Eligible brought-forward business loss could be set off against profits and gains of a business or profession, subject to the Act.
- Ordinary business loss could generally be carried forward for up to eight assessment years immediately succeeding the assessment year for which the loss was first computed.
- Carry forward was subject to other provisions, including the requirement applicable to a return of loss.
- Special rules apply separately to speculation losses, specified business losses and certain reorganisations.
Meaning of carry forward and set off of business loss
A business may have a tax loss when the computation under the head "Profits and gains of business or profession" results in a negative figure. "Set off" means adjusting an eligible loss against taxable income permitted by law. "Carry forward" means taking an eligible unadjusted loss to a later year so that it may be set off when the statutory conditions are satisfied.
What Section 72 provided
Section 72 - Carry forward and set off of business losses. In substance, where the computation under the head "Profits and gains of business or profession" resulted in a loss other than a speculation-business loss, the portion not absorbed under the applicable set-off provisions could be carried forward. In a later assessment year it could be set off against eligible profits and gains of business or profession, with any balance carried forward further subject to the statutory limit and other provisions of Chapter VI.
The official text of section 72 should be consulted for the exact wording applicable to the relevant assessment year because amendments may affect a particular year or taxpayer.
Eight-assessment-year limit
Under section 72(3), an ordinary business loss, other than the special loss covered by the proviso to section 72(1), could not be carried forward for more than eight assessment years immediately succeeding the assessment year for which the loss was first computed. The eight-year period is therefore linked to the year for which the loss was first computed, not restarted each time part of the loss is used.
Return of loss and Section 80
Section 72 must be read with the other provisions governing loss claims. Under the 1961 Act, section 80 restricted carry forward of specified losses unless the loss had been determined in pursuance of a return filed in accordance with section 139(3). The Department's current transition guidance also confirms that a pre-1 April 2026 loss that was ineligible because the required loss return was filed late is not revived by the Income-tax Act, 2025.
Priority over unabsorbed depreciation
Section 72(2) prescribed an ordering rule where specified allowances were also available for carry forward. In practical terms, the brought-forward business loss governed by section 72 was to receive effect before the carried-forward allowances referred to in that sub-section. This distinction matters because business losses and unabsorbed depreciation can have different statutory conditions and carry-forward treatment.
Business loss is different from speculation and specified business loss
| Type of loss | Relevant 1961 Act provision | General treatment |
|---|---|---|
| Ordinary business or professional loss | Section 72 | Subject to section 72 and connected provisions; ordinary carry-forward period was generally eight assessment years. |
| Speculation business loss | Section 73 | Separate restrictions applied; it was excluded from ordinary section 72 treatment. |
| Specified business loss | Section 73A | Separate rules applied to losses of specified businesses. |
| Losses in specified reorganisations | Sections 72A, 72AA and 72AB | Special conditions governed qualifying amalgamations, reorganisations and related cases. |
Effect of the Income-tax Act 2025 from 1 April 2026
The Income-tax Act, 2025 replaced the Income-tax Act, 1961 for tax years beginning on or after 1 April 2026. Section 536 of the 2025 Act contains repeal and saving rules. The Income Tax Department explains that eligible business losses brought forward from years before 1 April 2026 remain available under the transition provisions, retain their original character and remain subject to the original overall carry-forward period.
Accordingly, this Section 72 page remains relevant for determining the nature, validity and remaining life of business losses arising under the 1961 Act, and for proceedings concerning periods governed by that Act. For a tax year beginning on or after 1 April 2026, the 2025 Act and its transition provisions should also be checked.
Practical checklist
- Identify the assessment year or tax year in which the loss arose.
- Confirm that the loss is an ordinary business loss and not a speculation or specified-business loss.
- Check whether the return-of-loss requirements applicable to that year were satisfied.
- Track the amount already set off and the balance available.
- Check the original eight-assessment-year limit for a loss arising under section 72 of the 1961 Act.
- For utilisation on or after 1 April 2026, apply the Income-tax Act, 2025 together with section 536 transition rules.
Official references
For current law and transition guidance, use the official Income Tax Department and CBDT resources linked in the sidebar. Tax treatment can depend on the year of loss, return-filing status, type of business and later statutory amendments.
This article is a general legal and tax information resource and is not a substitute for advice based on the facts of a particular case.