Set-off rules across equity, debt, and property

Same-head losses come first. Then intra-class cross-set-offs. The asymmetry between long-term and short-term is the rule worth memorising.

When you have a mix of gains and losses across mutual funds, stocks, real estate, and other capital assets in the same financial year, the Income Tax Act specifies the order in which losses set off against gains. Understanding this hierarchy is essential for harvesting decisions and for computing the correct final tax bill.

The first principle — same head, same year

Losses must first be set off against gains from the same head, in the same year. For capital gains, the "head" is split between short-term and long-term:

STCL → first against current-year STCG.
LTCL → first against current-year LTCG.

Any unused balance moves to the next step.

The second principle — short-term losses are flexible

After STCL has consumed all current-year STCG, any remaining STCL can be set off against current-year LTCG. This is the most useful asymmetry in the system — short-term losses can offset either kind of future gain.

However, the reverse is not true: LTCL cannot be set off against STCG. Long-term losses are restricted to long-term gains only, both in the current year and on carry-forward.

The third principle — no cross-head with other income

Capital losses cannot be set off against income from other heads — salary, business income, house property, other sources. Even if you have a ₹5 lakh capital loss and ₹5 lakh of FD interest in the same year, the FD interest is taxed at slab and the capital loss carries forward.

The one exception: under specific provisions, business losses can be set off against capital gains within the same year (not vice versa). For most mutual fund investors this is not relevant.

Worked example with multiple positions

In FY 2025-26, you have:

Equity STCG of ₹3 lakh.
Equity LTCG of ₹6 lakh (above ₹1.25 lakh exemption = ₹4.75 lakh taxable).
Debt LTCG of ₹2 lakh (pre-April-2023 units, with indexation).
Equity STCL of ₹4 lakh (from a small-cap fund redemption).
Debt LTCL of ₹1 lakh (from another debt fund).

Set-off cascade:

STCL of ₹4 lakh first against STCG of ₹3 lakh → consumes STCG entirely, ₹1 lakh STCL remaining.
Remaining STCL of ₹1 lakh next against LTCG (any) → applied against equity LTCG.
Equity LTCG: ₹6 lakh − ₹1 lakh STCL set-off = ₹5 lakh; minus ₹1.25 lakh exemption = ₹3.75 lakh taxable at 12.5%.
Debt LTCL of ₹1 lakh against debt LTCG of ₹2 lakh → debt LTCG drops to ₹1 lakh.
Final taxable: ₹3.75 lakh equity LTCG at 12.5%, ₹1 lakh debt LTCG at 20% with indexation (assuming pre-April-2023 units).

Day-trading vs investment treatment

If you also trade in stocks or derivatives, the classification of your trading activity matters. Treatment as business income makes losses set off against any income head; treatment as capital gains restricts losses to the capital gains regime. The classification is fact-specific and depends on frequency, volume, holding period, and intent — well-documented in case law.

The 4-year speculation carry-forward

Day trading in equity is "speculation business" under Section 43(5). Speculation losses can be carried forward only 4 years (vs 8 for capital losses) and can only be set off against speculation income. F&O trading is generally not speculation — it has its own treatment as non-speculative business income.

For ELSS-heavy portfolios

ELSS units, due to their 3-year lock-in, naturally produce LTCG when redeemed. The set-off rules apply normally — ELSS LTCG can be offset by carried LTCL or current-year STCL. ELSS specifically does not have any special set-off provision.

Equity vs non-equity classification matters

The set-off rules within the LTCG bucket recognise sub-buckets only in some interpretations:

Section 112A (equity) LTCG taxed at 12.5%.
Section 112 (other) LTCG with indexation at 20% or without at 12.5%.

The Income Tax Department's general position has been that LTCL from one sub-bucket can offset LTCG from another (both are "long-term capital gains" under the broader Chapter IV-E classification). Some commentators have argued for strict sub-bucket matching; case law has generally supported the broader interpretation.

NRI considerations

NRIs follow the same set-off rules. Indian-source capital losses can be set off against Indian-source capital gains. Foreign-source items are outside the Indian set-off system.

Year-end planning checklist

In January-March of any FY:

Compute year-to-date gain by head (STCG / LTCG by type).
Identify losses available for harvesting.
Compute the residual taxable gain after optimal set-off.
Decide whether to realise additional losses to consume taxable gain.
Decide whether to realise gains up to the ₹1.25 lakh equity LTCG exemption.

The exemption is per FY — anything not used in this FY is gone.