Understand Loss Set Off under IT Act

Under the Indian Income Tax Act, losses are first set off intra-head under section 70, then inter-head under section 71, and any balance carried forward subject to head-specific rules. House property loss up to ₹2 lakh can offset other heads in the same year and carry forward eight years against house property income. Non-speculative business loss carries forward eight years against business income, speculative loss four years, short-term capital loss eight years against any capital gain, and long-term capital loss eight years against long-term gain only.

Priyanka Wadhera

Published: 7 Aug 2023

Updated: 16 May 2026

4 min read

Set-off and carry-forward of losses is one of the most nuanced areas of the Income Tax Act and one of the highest-leverage tax planning levers for Indian businesses, professionals, traders and investors. Knowing which loss can be set off against which income, and how long it can be carried forward, often makes the difference between a clean tax year and a bloated tax outgo. The 2026 framework retains the long-standing structure with regime-specific tweaks.

The Two-Step Set-Off Mechanism

Intra-head set-off (section 70): loss under one source of income within the same head is first set off against income from another source under the same head — for example, short-term capital loss on equity against short-term capital gain on debt.
Inter-head set-off (section 71): residual loss after intra-head set-off is then adjusted against income under other heads, subject to specific exclusions.
Unabsorbed loss after both steps is carried forward to subsequent years subject to section-wise time limits.

House Property Loss

Loss under the head 'Income from house property' arising mainly from interest on home loan can be set off against other heads in the same year up to ₹2 lakh under section 71(3A). The balance is carried forward for up to eight assessment years under section 71B and set off only against house property income.

Business Loss

Non-speculative business loss (section 72): set off against any other head except salary in the same year; carried forward for eight assessment years, set off only against business income.
Speculative business loss (section 73): set off only against speculative business income; carried forward for four assessment years.
Specified business loss under section 35AD (section 73A): only against income of specified business; indefinite carry forward.
Loss from owning and maintaining race horses (section 74A): only against same activity; four-year carry forward.

Capital Loss

Short-term capital loss: set off against short-term or long-term capital gain in the same year; carried forward for eight years against capital gains of either type.
Long-term capital loss: set off only against long-term capital gain in the same year; carried forward for eight years against long-term capital gain only.
Capital loss cannot be set off against business or any other head.

Critical Conditions to Preserve Set-Off

File the return within the due date under section 139(1); belated returns lose the right to carry forward most losses (house property loss is the limited exception).
Show the loss correctly in the relevant schedule of the ITR.
Maintain books and audit where applicable so loss is computed and verifiable.
For companies, section 79 imposes ownership-continuity tests; lose more than 49% beneficial ownership and the loss may lapse.

Regime-Specific Considerations

Under the new tax regime, certain set-offs and carry-forwards remain available, but specific deductions like additional depreciation, section 35AD weighted deductions, and some loss interactions are restricted. Always model the year's loss treatment under both regimes before choosing, particularly for businesses with substantial unabsorbed depreciation or losses.

Worked Example Approach

List all income and losses head-wise.
Apply intra-head set-off as per section 70.
Apply inter-head set-off as per section 71 with applicable restrictions.
Carry forward the balance under the relevant section.
Report each in the ITR schedules — Schedule CFL for carry forward, Schedule CYLA for current year set-off, Schedule BFLA for brought forward.

Strategic Use of Loss Carry-Forward

Loss carry-forward is a long-horizon planning instrument. Plan capital gains transactions to coincide with years where carry-forward losses are available — a large long-term capital gain in a year where ₹10 lakh of LTCL is brought forward saves substantial tax. Similarly, time discretionary expenses or asset sales in loss-making businesses to balance taxable income across years within the eight-year window.

For groups of companies, dividend declarations, intra-group restructurings and slump sales need careful section 79, section 47 and section 50B analysis to ensure that carried-forward losses survive the transaction.

Documentation for Defence in Scrutiny

Computation sheets showing year-wise loss accumulation.
ITR copies showing carry-forward in Schedule CFL.
Audit reports under section 44AB substantiating business loss quantum.
Bank and demat statements substantiating capital loss transactions.
Working papers for set-off application in current year.

Conclusion

Mastering loss set-off and carry-forward turns a difficult year into a tax shield for the future. The cardinal rule is to file the return within the original due date, classify losses correctly, and apply set-off in the right sequence. Done well, a section 72 or section 74 carry forward can offset taxable income for years to come and dramatically smoothen your tax curve.

Frequently Asked Questions

Can business loss be set off against salary income?

No. Section 71(2A) bars set-off of business loss against salary income. Non-speculative business loss can be set off against any other head except salary in the same year, and carried forward for eight years to be set off only against business income.

Can long-term capital loss be set off against short-term capital gain?

No. Long-term capital loss can be set off only against long-term capital gain, both in the year of loss and in subsequent eight years of carry forward. Short-term capital loss, on the other hand, can be set off against both short-term and long-term capital gain.

Will I lose carry-forward if I file my return late?

Yes, in most cases. Section 80 bars carry-forward of business loss, speculative loss, specified business loss, capital loss and loss from race horses if the return is not filed within the section 139(1) due date. House property loss carry-forward is the limited exception preserved in a belated return.

How long can capital losses be carried forward?

Capital losses, both short-term and long-term, can be carried forward for eight assessment years immediately following the assessment year in which the loss was first computed. Short-term loss can offset both types of capital gain; long-term loss only long-term gain.

Does change in shareholding affect company losses?

Yes. Under section 79, a closely held company loses the right to carry forward and set off business losses if more than 49% of its voting power changes during the year of set-off compared with the year in which the loss was incurred, subject to exceptions for eligible startups and corporate restructurings.