House Property Loss Set-off Under Old Act vs New Act: Checklist, Due Dates & Common Mistakes
Millions of home loan borrowers use house property loss — created by home loan interest exceeding rental income — to reduce their salary tax. The Income-tax Act 2025 retains this mechanism but renumbers the sections and tightens regime interaction. The ₹2 lakh annual cap on set-off against other income heads is unchanged. What has changed is how you elect the old regime to access this benefit from Tax Year 2026-27 onwards. This guide provides the full comparison, worked examples, and a filing checklist.
The Core Rule — Same Limit, New Section Numbers
Under both the old Act and the new Act, a taxpayer who suffers a loss under "Income from House Property" (due to home loan interest exceeding net rent or self-occupied property deemed value) can set off this loss against income from other heads — but only up to ₹2 lakh per year. The balance unabsorbed loss carries forward for 8 years.
| Parameter | Old Act — Section | New Act (2025) — Section | Amount/Rule |
|---|---|---|---|
| Self-occupied property — interest deduction | Section 24(b) | Section 194(b)(ii) | Max ₹2L per year |
| Let-out property — interest deduction | Section 24(b) | Section 194(b)(ii) | Actual interest (no cap) |
| Standard deduction on NAV | Section 24(a) | Section 194(b)(i) | 30% of NAV |
| HP loss set-off cap vs other heads | Section 71(3A) | Section 72(3) | ₹2L per year |
| Carry forward of unabsorbed HP loss | Section 71B | Section 72(4) | 8 years — HP income only |
| HP loss set-off in new concessional regime | Section 115BAC(2)(i) | Chapter XX (default regime) | NOT ALLOWED |
How House Property Loss Is Created — A Refresher
House property loss arises when deductions under the house property head exceed the taxable rent (or zero, for self-occupied properties):
- Self-occupied property: Annual value is deemed nil (₹0). But interest on home loan is allowed as deduction up to ₹2L. This creates a loss of up to ₹2L per year which can be set off against salary.
- Let-out property: Gross rent minus municipal taxes gives Net Annual Value (NAV). Minus 30% standard deduction and actual home loan interest. If result is negative — house property loss.
- Two self-occupied properties: Under the new Act, you can designate up to 2 properties as self-occupied (one additional property allowed — the deemed NAV rule for the second SOP was removed from AY 2020-21 and continues). Both can claim ₹2L interest deduction but combined set-off against salary is still capped at ₹2L total.
Worked Example — Home Loan Borrower, Tax Year 2026-27
Priya earns ₹18,00,000 salary. She has a home loan on her self-occupied flat with annual interest of ₹2,80,000. She opts for the old tax regime by filing Form 124 (investment declaration to employer).
| Calculation | Amount (₹) |
|---|---|
| Gross salary income | 18,00,000 |
| Standard deduction (Section 16 equivalent — new Act Section 155(b)) | (75,000) |
| Net salary | 17,25,000 |
| House property income — self-occupied (annual value = nil) | 0 |
| Less: Home loan interest allowed | (2,80,000) |
| House property loss | (2,80,000) |
| HP loss set-off against salary — capped at ₹2L | (2,00,000) |
| Adjusted gross total income | 15,25,000 |
| Less: 80C deductions (PF, PPF, LIC etc.) | (1,50,000) |
| Net taxable income | 13,75,000 |
| Carry forward of balance HP loss (₹2.8L - ₹2L) | ₹80,000 (8 yrs) |
Case Study: Ankit's Two Properties — Old Regime vs New Regime Math
Ankit earns ₹25L salary. He has two home loans: flat A (self-occupied) with ₹2.4L interest, flat B (let-out at ₹14,400/month = ₹1,72,800/year) with ₹2.8L interest.
Old Regime (Form 124 (investment declaration to employer) opted):
- Flat A: HP loss = ₹2L (interest capped at ₹2L for self-occ)
- Flat B: NAV = ₹1,72,800 − 30% (₹51,840) = ₹1,20,960 − ₹2,80,000 interest = HP loss of ₹1,59,040
- Total HP loss = ₹2L + ₹1.59L = ₹3.59L. Set-off cap = ₹2L only. Carry forward: ₹1.59L
- Net salary after set-off: ₹25L − ₹75K SD − ₹2L = ₹22.25L. Tax ~₹4.7L
Despite two home loans, Ankit's total tax is lower in the new regime because the new slab structure (5%/10%/15%/20%) and higher ₹75K standard deduction outweigh the HP loss benefit. This is the emerging reality for most borrowers with loans below ₹50L at ~9% interest.
When House Property Loss Set-off Still Makes Old Regime Better
The old regime with HP loss set-off outperforms the new regime when:
- High loan outstanding: Large interest payments (above ₹2.4L/year), especially in early years of a high-value loan
- Multiple deductions stack up: HRA + 80C + 80D + home loan interest together create significant old-regime benefit
- Let-out property: Actual interest on let-out is unlimited deduction — rental income is low, creating a large HP loss
- Effective tax benefit calculation: HP loss benefit = ₹2L × your marginal tax rate. At 30% slab = ₹60,000 tax saving per year.
Common Mistakes to Avoid — Tax Year 2026-27
| Mistake | Consequence | Correct Approach |
|---|---|---|
| Filing in new regime without realising HP loss is not allowed | Miss ₹2L set-off — excess tax paid | Compare regimes; opt old via Form 124 (investment declaration to employer) if beneficial |
| Claiming ₹2.8L interest instead of ₹2L cap for self-occupied | Excess deduction claim — notice under Section 143 | Cap at ₹2L; carry forward balance ₹80K |
| Not filing ITR on time — HP loss carry forward denied | Lose 8-year carry-forward benefit | File by 31 August 2026 (new due date under new Act for Tax Year 2026-27) |
| Claiming HP loss set-off without interest certificate from bank | Deduction disallowed in scrutiny | Obtain Form 16B/Provisional Certificate from lender before ITR |
| Two self-occupied properties — claiming ₹2L interest on both | Total set-off cap is still ₹2L — excess demand | Combined HP loss capped at ₹2L set-off per year |
Due Dates Relevant to HP Loss Claims — Tax Year 2026-27
| Event | Date |
|---|---|
| Form 124 submission to employer (old regime opt-in with deduction claims) | April 2026 / on joining |
| Advance tax 1st instalment (if HP income/loss changes total liability) | 15 June 2026 |
| Advance tax 2nd instalment | 15 September 2026 |
| Advance tax 3rd instalment | 15 December 2026 |
| Advance tax 4th instalment | 15 March 2027 |
| ITR filing due date (non-audit, Tax Year 2026-27) | 31 August 2027 (new Act) |
| Belated/revised ITR deadline | 31 March 2028 |
House Property Loss — Key Takeaways
- ₹2L annual cap on HP loss set-off against other income — unchanged in new Act (Section 72(3))
- Only available under old regime — must opt via Form 124 (investment declaration to employer)
- Let-out property: actual interest (unlimited) but loss set-off still capped at ₹2L
- Balance HP loss carries forward 8 years — set off only against HP income
- New Act ITR due date: 31 August (was 31 July) — gives extra month to gather interest certificates
- Compare regimes: for most borrowers with loans under ₹50L, new regime may be cheaper despite losing HP loss