Income Up to ₹12 Lakh Is Tax-Free" — Then Why Does Your ITR Show Tax Due? The Capital Gains Trap

"Income up to ₹12 lakh is tax-free now" — you've heard it everywhere since Budget 2025. So you file your return with ₹9 lakh of salary and a couple of lakhs of stock market gains, expecting zero tax… and the portal shows a demand. Nothing is broken. You've just met the least-advertised fine print of the new regime: the ₹12 lakh rebate doesn't cover capital gains. Here's exactly how the trap works, who falls into it, and what you can still do about it.

What the ₹12 lakh headline actually says

For FY 2025-26 (AY 2026-27), under the new regime, the Section 87A rebate of up to ₹60,000 wipes out the tax on total income up to ₹12 lakh — and with the ₹75,000 standard deduction, a salaried person is effectively tax-free up to ₹12.75 lakh. All true.

The fine print: the rebate applies to tax computed at normal slab rates. Income taxed at special rates sits outside it — most importantly:

• Short-term capital gains on listed equity/equity funds (Section 111A) — taxed at 20%, no rebate.
• Long-term capital gains on listed equity/equity funds (Section 112A) — taxed at 12.5% beyond the ₹1.25 lakh annual exemption, no rebate.
• Crypto/VDA gains — flat 30%, no rebate, no loss set-off. Lottery and game-show winnings: same treatment.

So the honest version of the headline is: your slab-rate income (salary, interest, rent, business income) up to ₹12 lakh is tax-free — your special-rate income is taxed from the first rupee (or beyond its own exemption), regardless.

The trap, with numbers

Case 1 — the classic surprise. Salary ₹10 lakh, STCG from stocks ₹1.5 lakh. Total income ₹11.5 lakh — under ₹12 lakh, so people expect zero tax. Reality: the salary portion (₹9.25 lakh after standard deduction) attracts slab tax that the 87A rebate cancels — fine. But the ₹1.5 lakh STCG is taxed at 20% = ₹30,000 plus cess, and no rebate touches it. The "tax-free" year produces a five-figure bill.

Case 2 — the LTCG version. Salary ₹8 lakh, LTCG on equity funds ₹2 lakh. The first ₹1.25 lakh of LTCG is exempt under 112A's own limit; the remaining ₹75,000 is taxed at 12.5% = ₹9,375 plus cess. Small, but not zero — and if TDS on salary was computed assuming zero liability, this lands as tax payable with possible interest.

Case 3 — the laid-off investor. Six months' salary ₹6 lakh, then you sold investments during the job gap: STCG ₹3 lakh. Slab income is comfortably rebate-covered; the ₹3 lakh STCG owes ₹60,000 plus cess. If you're filing after a layoff, don't let the refund you're expecting on salary TDS (see our layoff-year ITR guide) blind you to the gains-side liability — the two net off in the same return.

Who falls into this in 2026

Almost everyone new to it: first-time equity investors who started SIPs and trading during the bull years, employees who sold RSUs/ESPP shares (listed-equity gains follow the same special rates), people who rebalanced mutual funds, and — increasingly this year — laid-off employees who liquidated investments to cover expenses. The common thread: modest salary, some market gains, and a headline that seemed to promise zero tax.

What you can legitimately do about it

• Use the ₹1.25 lakh LTCG exemption every year — it doesn't carry forward. Harvesting long-term gains up to the limit annually (and rebuying if you wish) resets cost bases tax-free. For FY 2025-26 that ship has sailed, but plan it for the current year.
• Set off losses properly. Short-term capital losses set off against both STCG and LTCG; long-term losses against LTCG only. If you booked losers during the year, make sure the ITR's capital-gains schedule nets them — the portal doesn't always import broker data perfectly, so reconcile against your broker's capital-gains statement and the AIS.
• Check whether the basic-exemption adjustment helps you. If your slab-rate income is below the basic exemption (₹4 lakh in the new regime) — common in a layoff year — the unused exemption can absorb capital gains for resident individuals, reducing the special-rate base. The portal computes this, but verify it happened.
• Pay before filing, not after. If a liability shows, clear it as self-assessment tax before submitting to stop further interest — the meter under 234B/234C runs monthly.
• Know your form: capital gains beyond the small 112A window push you from ITR-1 to ITR-2 — filing ITR-1 with gains it can't hold is a defective-return notice waiting to happen.

Bonus confusion: marginal relief at the ₹12 lakh edge

Separate from the gains issue: if your slab-rate income is just above ₹12 lakh (say ₹12.3 lakh), marginal relief ensures the extra tax can't exceed the extra income — you pay roughly the amount by which you crossed the line, not the full slab tax. So earning ₹12.1 lakh doesn't create a ₹60,000+ cliff. This relief, too, works on slab income only — it doesn't rescue capital gains.

The 60-second version

The ₹12 lakh (₹12.75 lakh salaried) tax-free line under the new regime covers slab-rate income only. Equity STCG (20%), equity LTCG beyond ₹1.25 lakh (12.5%), and crypto (30%) are taxed regardless — the 87A rebate never touches them. Net your losses, use the unused basic exemption if your salary year was broken, use the LTCG exemption annually going forward, file ITR-2 if gains exceed ITR-1's window, and pay any balance before submitting. The headline wasn't a lie — it just wasn't about your demat account.

This article is general information for AY 2026-27, not tax advice. Capital gains computations with multiple asset classes, buybacks, or unlisted shares have additional rules — a CA consultation is worth it for large portfolios.