After-Tax Return — Equity vs Debt & the Exemption

The advertisement is designed to hand you one big number and stop your thinking there. “12% returns.” “7.5% — our highest-ever FD.” And the natural, human thing is to chase the biggest figure on the page. But the figure on the page is the gross, pre-tax return — the amount before the government takes its share. The number that actually reaches your bank account is smaller. How much smaller depends on two things almost nobody puts on the poster: which kind of product it is, and who you are.

That second point is the quiet shock of this lesson. The very same fund can hand two people two different returns, because they sit in different tax brackets. So the honest question is never “what does it return?” It is “what do I keep?” This lesson gives you the lens — the after-tax return — and once you have it, the ranking of every product you own can change. It is the reframe that quietly reorders the whole tax playbook.

We follow two people the whole way. Suresh Menon, 55, is a chartered accountant and consultant in Kochi earning about ₹40 lakh a year, squarely in the 30% slab, with roughly ₹1.8 crore spread across equity funds, a large taxable equity book, and property. For him the after-tax lens is not a nicety — at his bracket, tax is the single biggest silent cost on his money. Aarti Deshpande, 24, is a junior software engineer in Pune earning ₹9 lakh a year on the new regime, with about ₹1.2 lakh saved and ₹5,000 a month to invest. She is near the bottom of the tax ladder. We will hand them the identical four products — and watch them rank in a different order for each.

Before you can compare products, you have to sort them — and there is one sorting that does almost all the work. Every rupee an investment earns you falls into one of two tax families. Learn which family a product is in, and you already know, roughly, how hard the tax will hit it.

Family one: slab-taxed

The first family is taxed at your slab — your own personal income-tax rate. Fixed-deposit interest is the classic case: it is added to your income and taxed at whatever band you are in, every year. Debt mutual funds now sit here too. Under Section 50AA, for units you bought on or after 1 April 2023, the gain is taxed at your slab whenever you redeem — no matter how many years you held. (Recall from Lesson 36, ‘Corporate Bonds, FDs & Debt Funds’, that this was a real change: debt funds used to get a gentler long-term rate, and lost it.) The defining feature of this family: the tax is your rate, so it stings a 30% earner and barely touches a low earner.

Family two: equity-taxed

The second family is taxed at a flat capital-gains rate that ignores your slab entirely. Listed shares and equity-oriented funds — any fund holding at least 65% in equity — live here. If you hold for more than 12 months, your gain is a long-term capital gain (LTCG) under Section 112A, taxed at 12.5% — and the first ₹1,25,000 of it each year is exempt. If you hold for 12 months or less, it is a short-term capital gain (STCG) under Section 111A, taxed at 20%. These rates are flat: a person in the 5% slab and a person in the 30% slab pay the same 12.5% on a long-term equity gain. That flatness is a gift to a high earner and a mild cost to a low one — hold that thought; it is the hinge of the whole lesson.

Notice the third item in the equity column: the arbitrage fund. It earns a return that looks and behaves like a debt fund’s, yet it is taxed as equity. That is not a typo — it is the sleeper at the centre of this lesson, and we will open it up shortly. Notice too the green strip: the equity family comes with a free allowance — the first ₹1,25,000 of long-term gain each financial year, exempt — and the slab family has nothing like it. Both facts will matter enormously the moment we put real rupees behind them.

Those four numbers — 7%, 7.5%, 6.5%, 12% — are the ones we will carry all the way through. They are deliberately ordinary and clearly assumptions, not guarantees; an equity fund does not owe you 12%, and an arbitrage fund’s return moves with the market. What matters is not the exact figures but what tax does to their order.

Suresh has ₹10,00,000 (ten lakh) he wants to park somewhere sensible for a year. He lines up the four products. By the headline returns on the poster, the order could not be clearer: the equity fund at 12% leads, then the debt fund at 7.5%, then the FD at 7%, and the arbitrage fund trails last at 6.5%. If the headline were the whole truth, he would never look twice at the arbitrage fund. Let us instead ask what he keeps.

Take the FD first. ₹10 lakh at 7% earns ₹70,000 of interest. At his 30% slab that interest loses ₹21,000 to tax — nearly a third of it gone — leaving him ₹49,000. His after-tax return is 4.90%. The debt fund at 7.5% earns ₹75,000; slab tax of ₹22,500 leaves ₹52,500, an after-tax 5.25%. So far the debt fund leads the FD, as the headline said it would.

Now the arbitrage fund. It earns ₹65,000 — the smallest gain of the safe-ish three. But it is equity-taxed, not slab-taxed. Assume, realistically for Suresh, that his large equity book has already used up his ₹1.25 lakh exemption for the year (more on that gift shortly), so this gain is taxed at the full 12.5%: just ₹8,125. He keeps ₹56,875 — an after-tax 5.69%. Look what happened: the fund with the lowest headline return keeps him the most of the three. And the equity fund? Its ₹1,20,000 gain loses only ₹15,000 to the 12.5% rate, leaving ₹1,05,000 — an after-tax 10.50%, still comfortably first.

Read the green lengths in that chart, not the totals. The arbitrage fund’s whole bar is the shortest — it earned the least — yet its green portion, the part Suresh keeps, is longer than the debt fund’s and the FD’s. That is the flip, made visible. Sorted by what he keeps, the order is now equity, then arbitrage, then the debt fund, then the FD. The arbitrage fund has vaulted from last place on the headline to second place in his pocket, and the debt fund — second on the poster — has slipped to third. Nothing about the products changed. Only the tax family did.

It is worth pausing on how one fund can earn like debt but be taxed like equity, because that single quirk is what powered the flip. An arbitrage fund is not making a bet on the market going up. It is pocketing a tiny, near-riskless spread. It buys a share in the cash market and, at the same instant, sells that share’s futures contract at a slightly higher price locked in for month-end. When the two settle, the small gap is the profit. Because the two legs cancel out, the market can lurch up or down and the fund barely notices. Repeat that across dozens of stocks and the little spreads add up to a debt-like return of roughly 6–7% a year, with very low volatility. In behaviour, it is a cousin of a liquid fund or a short FD.

So why does the taxman call it equity? Because of what it holds. To capture those spreads it keeps at least 65% of its money in equity and equity-derivative positions — and the 65% test is exactly the line the law uses to define an ‘equity-oriented fund’. Cross that line and your gains are taxed as equity: 12.5% long-term with the ₹1.25 lakh allowance, or 20% short-term. The arbitrage fund earns like debt and is dressed, for tax purposes, as equity. It is a debt fund’s twin wearing an equity tax coat.

The gold strip in that card explains why this edge is sharper now than it was a few years ago. Before 1 April 2023, a debt fund held for over three years enjoyed a 20% long-term rate with indexation — genuinely tax-friendly, sometimes more so than equity. Then Section 50AA arrived and debt-fund gains became flat slab-taxed, regardless of holding period. Debt funds lost their tax advantage, and the arbitrage fund quietly inherited the role of the tax-smart parking spot for a high-slab investor. What used to be a debt-fund trick is now an arbitrage-fund trick.

Here is the part that makes 'after-tax return' personal. Hand the identical four products to Aarti. She is on the new regime with taxable income that puts her, at the margin — the rate that would apply to her next rupee of income — in roughly the 10% band, a low slab. Run the very same arithmetic with a 10 in place of Suresh’s 30, and hold the equity-tax rate constant at 12.5% for both, so the only thing that changes between them is the slab.

For Aarti, the FD’s ₹70,000 loses just ₹7,000 to her 10% slab — she keeps 6.30%. The debt fund keeps 6.75%. But the arbitrage fund, taxed at the flat 12.5% equity rate, still keeps only 5.69% — exactly what Suresh got, because that rate ignores the slab. And 5.69% is now the worst of the four. For Aarti the order reads: equity, then the debt fund, then the FD, and the arbitrage fund dead last — which is exactly where the headline put it. For her, there is no flip.

The reason fits in one number, shown in each card: the equity-tax edge equals your slab minus 12.5. For Suresh that is 30 − 12.5 = +17.5 points working in his favour — every rupee moved from slab-taxed to equity-taxed saves him a large chunk. For Aarti it is 10 − 12.5 = −2.5 points working against her — her slab is already lower than the equity rate, so choosing an equity-taxed vehicle for her 'safe' money actually costs her a little. The arbitrage trick that dazzles at 30% is a dud at 10%.

We have twice now set the ₹1.25 lakh exemption aside 'for a moment'. It deserves its own moment, because it is the closest thing to free money the tax code hands an equity investor — and most people never consciously use it. The rule: the first ₹1,25,000 of long-term equity gain you realise in a financial year is exempt under Section 112A. You pay the 12.5% only on the gain above it.

Put a value on it. ₹1,25,000 of gain that would have been taxed at 12.5% is ₹15,625 of tax you do not pay. And it is not a one-time gift — it resets every 1 April, a fresh ₹1.25 lakh each financial year. Think of it as a recurring free allowance sitting in your account, and the only way to waste it is to leave it uncollected.

Watch how differently the same allowance lands for our two people. Suresh’s equity book realises ₹5,00,000 of long-term gain this year. The first ₹1,25,000 is free; the remaining ₹3,75,000 is taxed at 12.5%, which is ₹46,875. Without the allowance he would have paid ₹62,500 — so it saved him ₹15,625, exactly its headline value, because his gains are far bigger than the allowance. For him it is a free slice carved off the top of a large cake.

Aarti realises just ₹1,00,000 of long-term gain. The whole thing fits inside the ₹1.25 lakh allowance, so her tax is ₹0. Her equity growth is entirely tax-free. This is the deeper reason a low-slab investor should not fret about arbitrage-versus-FD tax tricks: her equity gains are usually untaxed anyway. She should own equity for its growth and let the allowance do its quiet work, rather than chase a workaround built for someone in a bracket she is not in.

There is one comparison people make wrong constantly: they put a fund’s pre-tax return next to an FD’s pre-tax return and pick the higher one. But if the two are taxed differently, that is comparing apples to a taxed orange. To compare fairly you have to translate one into the other’s language. Tax-equivalent yield does exactly that: it answers, 'what would a fully-taxable FD have to pay, pre-tax, to leave me with the same money as this equity-taxed fund?'

Run it for Suresh. His arbitrage fund returns 6.5% and, equity-taxed, keeps him 5.69%. Gross that back up at his 30% slab: 5.69% ÷ (1 − 0.30) = 8.13%. In other words, to match his 'boring' arbitrage fund, a fully-taxable FD would have to pay 8.13% — a rate no safe deposit offers. His equity fund is even starker: 10.50% kept ÷ 0.70 = an FD paying 15%. That gap between the FD it is worth and the FD you can actually get is, quite literally, his tax bracket handed back to him.

Now the mirror image, again with Aarti. Her arbitrage fund also keeps 5.69% — the equity rate ignores her slab — but grossed back at her 10% slab, 5.69% ÷ 0.90 = only 6.32%. To her, the arbitrage fund is worth just a 6.32% FD, and a real 7% FD already beats it. This is the very same conclusion the ranking reached, arrived at from a different direction: tax-equivalent yield is personal because your slab is. The identical fund is worth an 8.13% FD to Suresh and a 6.32% FD to Aarti.

All of this becomes real once a year, on one document. After the financial year ends, every investor can download a 'realised capital gains statement' — from the broker app (Groww and the like) or from the registrar that runs the funds (CAMS or KFintech), as an online PDF or on-screen report. It is not a bill; it is a summary of every gain you actually booked during the year, already sorted into the tax buckets you just learned. It is the single most useful page for turning this lesson into numbers on your own return. Here is Suresh’s, for FY2025-26.

Walk it top to bottom. The tinted long-term block lists the equity gains he booked: a bluechip equity fund at ₹2,60,000, a flexicap fund at ₹2,20,000, and his arbitrage fund at ₹20,000 — a total long-term gain of ₹5,00,000. The next line is the one this lesson is really about: 'less exemption u/s 112A — ₹1,25,000', the free allowance, applied automatically. That leaves ₹3,75,000 taxable, and at 12.5% the tax is ₹46,875. Below it, the short-term block: a midcap fund sold within the year at ₹40,000, taxed at 20% under Section 111A, is ₹8,000. Add them and his special-rate capital-gains tax is ₹54,875.

Do not miss the un-tinted band beneath: a short-duration debt fund gain of ₹30,000. It sits in the other family. It is taxed at his slab under Section 50AA — added to his ordinary income, not to this special-rate total — which is exactly why the statement reports it separately. The document has quietly done the two-families sort for you.

So what does a good private-wealth adviser actually do with all this for a client like Suresh? Strip away the jargon and it is two moves: rank everything by after-tax return for the client’s slab, and deliberately spend the ₹1.25 lakh allowance every year. Neither is a secret, and neither needs a fortune to access.

The important line on that card is the DIY substitute. Computing an after-tax return is one multiplication; holding an arbitrage fund is a click in your own demat; collecting the ₹1.25 lakh is a once-a-year habit. None of it requires a ₹50 lakh portfolio-management service or a percentage-of-assets fee. Which sets up the fee tell: an adviser who quotes you only headline, pre-tax returns — who never asks your slab, never mentions the allowance — is skipping the one task that would justify the fee. A good one hands you the after-tax ranking for your own bracket. If the calculator later in this lesson gives you the same answer, you are entitled to ask what exactly you are paying the adviser for. Choosing an adviser well is its own subject, in Lesson 54.

The after-tax lens has a dark twin. The same word that should make you calculate — 'tax' — is used by a certain kind of salesperson to make you stop calculating. The magic phrase is 'tax-free', and it is most often attached to a ULIP or an endowment policy sold as an investment. The lens you just built is the whole defence.

The trap is arithmetic, and now you can do the arithmetic. 'Tax-free' on a small return loses to 'taxed' on a bigger one: for a 30%-slab investor, a taxed 12% equity fund keeps 10.5%, while a 'tax-free' 6% policy keeps 6%. The word was doing the selling; the number never supported it. And the deepest tell on that card is the conflation — blurring a real, statutory allowance (the ₹1.25 lakh, written into the Act and applying to everyone) with a salesman’s marketing line about one product. A genuine tax break lives in the law, where you can look it up; a pitched one usually hides a poor, locked, commission-heavy product. If anyone rushes you past that check, they are selling, not advising — and the how-to-report block shows exactly where to raise it.

If, reading this, a small alarm went off — 'I have lakhs in FDs and I am a 30% earner' — stop before it curdles into blame. Chasing the biggest advertised number is the sensible-looking default; the after-tax view is never on the poster, and some of these rules changed only recently. This is a detour almost everyone takes, and it is fixable from wherever you are standing.

The one line to carry out of that card: you do not have to unwind everything today. Re-rank what you hold by after-tax return for your slab, then steer new savings into the right wrapper first — an arbitrage fund instead of an FD for a high earner’s safe sleeve, equity for long-horizon growth. Moving old money has its own tax and exit-load timing, which is precisely why switching well is handled in Lessons 43 and 44, not rushed here. And from this financial year, start collecting the ₹1.25 lakh allowance. Even if you change nothing else, stop gifting ₹15,625 back to the government every year.

You have seen the ranking flip for Suresh and hold for Aarti; now make it move for you. The comparator below takes an amount, an instrument, your slab and your holding period, and returns the four things this lesson is about at once: what you keep after tax (in rupees and as a percent), the tax-equivalent yield, and the effect of the ₹1.25 lakh allowance.

It opens on Suresh’s example — ₹10,00,000 in an arbitrage fund at a 30% slab, held long, his allowance already used — and reproduces the lesson exactly: 5.69% kept, worth an 8.13% FD. Now change one thing at a time. Drop the slab to 10% and watch the arbitrage fund’s tax-equivalent yield fall below a plain FD’s. Switch the instrument to 'FD' and see the same 30% slab bite a third out of it. Untick 'allowance already used' on a small gain and watch the tax fall to zero. The point is not to memorise numbers — it is to feel, in your own hands, that the answer depends on the slab, and to reach for this calculation before you believe any advertised return.

The questions people actually ask when the after-tax lens first clicks — paraphrased from public investor forums, answered in the investing slice, with the full tax detail pointed to the income-tax track.

“Is an FD or a debt fund better after tax?” Both are slab-taxed, so at the same rate they are close. The debt fund usually edges ahead on two counts: it often yields a little more, and its tax is deferred to when you redeem rather than charged every year — so the pre-tax amount compounds untouched in the meantime (Lesson 36 walks that compounding). But the FD carries DICGC cover to ₹5 lakh and a fixed rate. Certainty versus a small after-tax edge — pick for the job.

“Why is an arbitrage fund taxed like equity when it behaves like a debt fund?” Because tax follows what the fund holds, not how it feels. It keeps at least 65% in equity and equity-derivative positions, which is the legal definition of an equity-oriented fund — so it gets equity’s 12.5% / 20% rates and the ₹1.25 lakh allowance, however debt-like its returns.

“Does the ₹1.25 lakh really reset every year?” Yes — it is a fresh allowance each financial year, resetting on 1 April, per person. It does not carry forward, so an unused year is simply gone. That is why people deliberately book up to ₹1.25 lakh of gains before 31 March (Lesson 43).

“Does my slab honestly change which product is best?” For the 'safe' sleeve, yes, decisively. The equity-tax edge is your slab minus 12.5. At 30% it is a large positive, so an arbitrage fund beats an FD; at 5–10% it is around zero or negative, so a plain FD or debt fund wins. Equity itself is the top of the after-tax ranking at every slab — what changes is the order underneath it.

“Is a ‘tax-free’ bond or policy actually better?” Rarely, once you do the maths. Compute the after-tax return of the taxed alternative and compare. A taxed 12% keeps a 30%-slab investor 10.5% — far more than a tax-free 6%. 'Tax-free' is a feature, not a return.

“I’m on the new regime — do these capital-gains rules change?” No. LTCG and STCG rates, and the ₹1.25 lakh exemption, are the same under both the old and new regimes — they are not tied to the regime you pick. What the regime changes is your slab, which is what drives the ranking. The regime choice itself is in the income-tax track.

“What about the dividends these funds pay?” Dividends are a different stream: taxed at your slab, with 10% TDS deducted above ₹10,000 from one payer, under Sections 194 and 194K. That is its own lesson — Lesson 42, 'Dividend & Income Taxation'. This lesson is about capital gains.

“Does the ₹1.25 lakh allowance cover gold or property or debt funds?” No. It is specifically for Section 112A long-term gains — listed equity shares and equity-oriented funds. Gold, property and debt funds have their own rules (debt funds are slab-taxed; property and gold are covered in the income-tax track and Lesson 45).

“Should I sell my FDs and debt funds now to switch?” Usually you steer new money first and move old money carefully. Redeeming can trigger exit loads, a fresh holding-period clock, and tax on gains you crystallise. Doing it without a needless tax hit is exactly what Lessons 43 and 44 are for. Re-rank now; act in sequence.

A quick refresher on the new terms, in plain language. Each was taught with a real example above; this is just the pocket version.