A loss in one year is not a wasted year if you set it off correctly. The Income Tax Act has a layered system: first you net within the same head, then across heads (subject to restrictions), and what remains rolls forward. The catch is that almost every benefit depends on filing the ITR on time and reporting losses in the right schedules. Miss the timing window or the schedule and the loss is gone, even if it is genuine.
This guide walks through the Sections 70 to 80 framework, the head-by-head rules, the time limits, and the ITR reporting that locks in the carry-forward right.
The Three-Layer Set-Off Structure
The Income Tax Act sets up loss treatment in three sequential steps:
- Intra-head set-off (Section 70): A loss under any head of income is first set off against income under the same head in the same year. Example: business loss from one business set off against profit from another business.
- Inter-head set-off (Section 71): Any unabsorbed loss after intra-head set-off can be adjusted against income under other heads in the same year, subject to specific restrictions.
- Carry forward (Sections 72 to 79): Whatever remains can be carried forward to future assessment years for set-off against the same head of income, subject to time limits and conditions.
Each step has restrictions. The full picture for FY 2025-26 (AY 2026-27) is below.
Intra-Head Set-Off Rules
Income from Salaries
A salaried individual cannot have a loss under salary head; salary income is always positive.
Income from House Property
Loss from one house property can be set off against income from another house property without limit at the intra-head stage. Loss is most often interest-driven (Section 24(b)).
Profits and Gains of Business or Profession
Loss from one business can be set off against profit from another business. Speculative loss (intraday equity, etc.) is treated as a separate sub-head: it can only be set off against speculative profit. Specified business loss under Section 35AD can only be set off against specified business income.
Capital Gains
- Short-term capital loss can be set off against both short-term and long-term capital gain.
- Long-term capital loss can be set off only against long-term capital gain.
Income from Other Sources
Most losses can be set off, except a few:
- Loss from owning and maintaining race horses can be set off only against winnings from race horses.
- Loss from lottery, gambling, betting cannot be set off against any other income or loss.
Inter-Head Set-Off Rules (Same Year)
After intra-head set-off, residual losses can be set off against other heads, subject to restrictions:
| Loss | Inter-head set-off in the same year |
|---|---|
| House property loss | Against any other head, up to Rs 2,00,000 a year (Section 71(3A)); not allowed at all under the new regime |
| Business loss (non-speculative) | Against any head except salary (Section 71(2A)) |
| Speculative business loss | Not allowed; only against speculative income (Section 73) |
| Specified business loss (Section 35AD) | Not allowed; only against specified business income (Section 73A) |
| Capital loss (short or long term) | Not allowed; only against capital gains (Section 71(3)) |
| Loss from owning and maintaining race horses | Not allowed; only against race horse income (Section 74A) |
The Rs 2 Lakh House Property Loss Cap
Section 71(3A) limits inter-head set-off of house property loss to Rs 2 lakh per year. This is the most consequential restriction for salaried homeowners with large home loan interest. Excess loss is carried forward.
For a worked example, see our Section 24(b) home loan guide.
Carry Forward of Losses
| Loss | Carry forward period | Set off in later years against | Needs return by Section 139(1) due date? |
|---|---|---|---|
| House property loss (Section 71B) | 8 assessment years | House property income only | No |
| Business loss, non-speculative (Section 72) | 8 assessment years | Business income | Yes |
| Speculative business loss (Section 73) | 4 assessment years | Speculative income only | Yes |
| Specified business loss under Section 35AD (Section 73A) | No time limit | Specified business income only | Yes |
| Short-term capital loss (Section 74) | 8 assessment years | STCG or LTCG | Yes |
| Long-term capital loss (Section 74) | 8 assessment years | LTCG only | Yes |
| Race horse loss (Section 74A) | 4 assessment years | Race horse income only | Yes |
| Unabsorbed depreciation (Section 32(2)) | No time limit | Any income other than salary | No |
The timely-filing condition under Section 139(3) is critical: only house property loss and unabsorbed depreciation survive a belated return. All other carry-forward rights are forfeited.
Some Practical Scenarios
Scenario 1: Salaried Filer with Home Loan Loss
Rohit has FY 2025-26 figures:
- Gross salary: Rs 14,00,000 (old regime, so salary income is Rs 13,50,000 after the Rs 50,000 standard deduction).
- Self-occupied house, home loan interest paid Rs 4,00,000.
For a self-occupied house, Section 24(b) itself caps the interest deduction at Rs 2,00,000, so the house property loss is exactly Rs 2,00,000. Rohit sets off the full Rs 2,00,000 against salary (Section 71(3A) allows up to Rs 2 lakh inter-head). His gross total income becomes Rs 11,50,000. Nothing is carried forward, and the Rs 2,00,000 of interest above the Section 24(b) cap is simply lost. Under the new regime, he would get neither the interest deduction nor the set-off.
If the house were let out instead, with annual rent of Rs 2,00,000 and interest of Rs 6,00,000 (no Section 24(b) cap for a let-out property):
- Net annual value Rs 2,00,000, less 30% standard deduction Rs 60,000, less interest Rs 6,00,000 = house property loss of Rs 4,60,000.
- Inter-head set-off against salary: Rs 2,00,000 only.
- Carry forward: Rs 2,60,000 to AY 2027-28 onwards, set off only against future house property income.
Scenario 2: F&O Trader Loss
Anjali has FY 2025-26 figures:
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Salary: Rs 12,00,000.
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F&O loss: Rs 5,00,000 (treated as non-speculative business under CBDT clarifications).
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Intraday equity loss: Rs 1,50,000 (speculative).
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F&O loss is non-speculative business loss. Cannot be set off against salary (Section 71(2A)). Carried forward for 8 years against business income only.
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Intraday loss is speculative. Cannot be set off against F&O profit (which is non-speculative). Carried forward for 4 years against speculative profit only.
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Anjali files ITR 3 (business income). Salary remains taxable at Rs 12,00,000. Both losses are carried forward, provided ITR 3 is filed by the Section 139(1) due date: 31 August 2026 for a non-audit case (extended from 31 July by the Finance Act 2026), or 21 November 2026 if a tax audit applies (extended by CBDT Circular 07/2026 dated 28 September 2026 from 31 October).
Scenario 3: Capital Loss
Vinay has FY 2025-26 figures:
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Short-term capital gain on equity: Rs 3,00,000.
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Long-term capital loss on equity: Rs 1,50,000.
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Salary: Rs 18,00,000.
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LTCL (Rs 1,50,000) cannot be set off against STCG. It can be set off only against long-term capital gain. Since there is no LTCG, the LTCL is carried forward for 8 years.
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STCG of Rs 3,00,000 is fully taxable (no offset).
If you plan to book losses deliberately to reduce this kind of tax, see our tax loss harvesting guide for FY 2026-27, which covers how much loss is worth booking and the Rs 1.25 lakh exemption trap.
If Vinay also had STCG of Rs 50,000 and STCL of Rs 80,000:
- STCL (Rs 80,000) intra-head against STCG (Rs 50,000) leaves Rs 30,000 STCL.
- The Rs 30,000 STCL can be set off against LTCG too (intra-head). With no LTCG this year, it is carried forward.
ITR Reporting in Schedule CFL
ITR 2 and ITR 3 contain a Schedule CFL (Carry Forward of Losses). This schedule has:
- Year-wise breakup of brought-forward losses (by AY).
- Set-off used during the current year.
- Balance carried forward.
The losses must have been reported in the return for the year of the loss, filed by the Section 139(1) due date. A loss that was never claimed in a return for that year cannot be picked up in a later year's return.
For business loss, the Profit & Loss Schedule of ITR 3 should be reconciled with the Schedule CFL entries.
For capital loss, Schedule CG (Capital Gains) feeds into Schedule CFL.
Common Errors and How to Avoid Them
- Filing belated return and losing carry-forward. The most expensive mistake. File by the original due date if you have a loss to carry forward.
- Setting off capital loss against salary. Not allowed. Capital losses set off only against capital gains.
- Setting off long-term loss against short-term gain. LTCL is restricted to LTCG. The reverse is fine: STCL goes against STCG or LTCG.
- Setting off speculative loss against F&O profit. Speculative is intraday equity (and similar). F&O is non-speculative business. They are different sub-heads.
- Forgetting to report a loss in the ITR for the loss year. If the loss is not claimed in the return for that year, it cannot be carried forward. A revised return can correct an omission only where the original return was itself filed by the due date; a belated return cannot.
- House property loss cap of Rs 2 lakh per year. Excess is carried forward, not lost; but it must be reported in Schedule CFL.
Section 80 Restrictions on Set-Off
Section 80 provides that business losses (including speculative and Section 35AD losses), capital losses and race horse losses cannot be carried forward unless the return for the loss year was filed within the Section 139(1) due date. House property loss and unabsorbed depreciation are outside Section 80. Section 80AC similarly restricts certain Chapter VI-A deductions if return is filed after the due date.
Practically, this means: always file by the original due date if you have a loss to carry forward. The cost of late filing is far higher than the late filing fee under Section 234F; you may permanently lose the carry-forward benefit.
Action Plan
- Identify each head's loss at the end of the financial year.
- Apply intra-head set-off within each head before going inter-head.
- Apply inter-head set-off within Section 71 limits, especially the Rs 2 lakh house property cap and the salary exclusion for business loss.
- Determine carry-forward by category with the right time limit.
- File ITR by the original Section 139(1) due date to preserve carry-forward rights.
- Report losses correctly in Schedule CFL with year-wise breakup.
- In future years, use Schedule CFL to claim set-off and reduce taxable income.
Where Tax Garden Helps
Loss tracking sounds like accounting plumbing but it sits at the heart of multi-year tax efficiency. Tax Garden's tax compliance services maintain a year-on-year loss register for our clients, ensure ITRs are filed by the original due date (so carry-forward rights are preserved), and report Schedule CFL accurately.
For related reading, see our capital gains tax guide for AY 2026-27, Section 24(b) home loan deduction, and F&O and intraday taxation.
Frequently Asked Questions
Can I set off my F&O trading loss against my salary?
No. F&O loss is a non-speculative business loss, and Section 71(2A) does not allow a business loss to be set off against salary income. In the same year it can be set off against other income such as house property, capital gains or other sources. Any balance is carried forward for up to eight years against business income, provided the ITR is filed by the due date.
Will I lose my capital loss if I file my ITR after the due date?
Yes. Business losses, speculative losses and capital losses can be carried forward only if the return for the loss year is filed within the Section 139(1) due date. A belated return lets you carry forward only house property loss and unabsorbed depreciation. For AY 2026-27, that means 31 July 2026 for ITR-2 filers and 31 August 2026 for non-audit ITR-3 filers.
Can a long-term capital loss be set off against short-term capital gains?
No. A long-term capital loss can be set off only against long-term capital gains, in the same year or for the next eight years. A short-term capital loss is more flexible and can be set off against both short-term and long-term gains. Neither kind of capital loss can be set off against salary or any other head.
Can intraday trading losses be set off against F&O profits?
No. Intraday equity trading is a speculative business and its loss can be set off only against speculative income. F&O is treated as non-speculative business, so an intraday loss cannot reduce F&O profit. Unabsorbed speculative loss can be carried forward for only four years, against speculative income alone.
How much house property loss can be carried forward, and for how long?
Only Rs 2,00,000 of house property loss can be set off against other heads in a year. The excess is carried forward for up to eight assessment years and set off only against house property income. Under the new tax regime no inter-head set-off of house property loss is allowed at all. House property loss can be carried forward even if the return is filed late.
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Sources
This guide is verified against Sections 70, 71, 71B, 72, 73, 73A, 74, 74A, 78, 79, 80, 139(1) and 139(3) of the Income Tax Act 1961, the ITR 2 and ITR 3 utility schedules issued by the Income Tax Department for AY 2026-27, and CBDT clarifications on speculative vs non-speculative business income. Practitioner cross-checks from ClearTax, IndiaFilings, Tax2Win and CAClubIndia were reviewed. Always validate the specific loss treatment against the relevant section text and the latest ITR utility before filing.
