Most people think about capital gains tax only after the sale deed is registered — when the money has already changed hands and the timelines have already started ticking. That's exactly backwards. Once you register the transfer, your rate choice, your exemption route, and your reinvestment window are all locked in. This note walks through the sequence the way we'd walk a client through it — before they sign anything.
1Long-Term or Short-Term? Everything Depends on This
The single fork that decides your entire tax outcome is how long you've held the property.
🏃 Held 24 months or less
Taxed at your normal slab rate. No indexation benefit. No relief from inflation on your cost.
🌳 Held more than 24 months
Eligible for a choice between two tax regimes (see below), plus exemption routes under Sections 54, 54F and 54EC.
The holding period is measured from the date the purchase deed was registered — for under-construction property, from the date of allotment, per applicable case law. This distinction alone has flipped the outcome in more than one client's computation.
2How the Gain Is Actually Computed
Think of it as three ingredients, in order:
Full value of consideration
This is the higher of your actual sale price or the stamp duty (circle rate) value on the date of transfer, under Section 50C — unless the gap between the two is within the tolerance band allowed by the Act, in which case the actual sale price is accepted as-is.
Cost of acquisition and improvement
What you originally paid, plus any documented capital improvements. If you bought before 1 April 2001, you can substitute the fair market value as on that date instead of your actual purchase price — often a significant benefit for older properties.
Two ways to be taxed — you (usually) get to pick the cheaper one
For property bought before 23 July 2024, the law now gives you a choice: pay 12.5% on the gain without indexation, or pay 20% on the gain after indexing your cost for inflation. Whichever produces the lower tax is the one you go with. This single choice is now the most important computation on a property sale.
312.5% vs 20% — See It Side by Side
Here's the comparison using a simple, real-world scenario: property bought in 2010 for ₹50 lakh, sold today for ₹80 lakh. Indexation (adjusting the ₹50 lakh for inflation since 2010) brings the cost up to roughly ₹60 lakh.
| Item | Amount |
|---|---|
| Cost of acquisition (2010) | ₹50,00,000 |
| Sale consideration (2026) | ₹80,00,000 |
| Indexed cost of acquisition | ₹60,00,000 |
🅰 Without Indexation
= ₹3,75,000
🅱 With Indexation
= ₹4,00,000
Option A (12.5%, no indexation) costs ₹3,75,000. Option B (20%, with indexation) costs ₹4,00,000. Here, the no-indexation route saves ₹25,000. But this isn't a fixed rule — the winner flips depending on how old the property is and how much its indexed cost has grown. The only safe approach is to compute both ways, every single time, before deciding.
4Where the Exemptions Actually Apply
This is where most computation errors happen — not in the arithmetic, but in picking the wrong section for the wrong situation.
| Section | Route | Applies When… |
|---|---|---|
| 54 | Reinvest in a residential house | The property you sold was residential. New house must be bought 1 year before / 2 years after, or built within 3 years. |
| 54F | Reinvest in a residential house | The property you sold was any other long-term asset (plot, shop, shares) — provided you don't already own more than one other house. |
| 54EC | Invest in specified bonds (NHAI/REC) | Up to ₹50 lakh, invested within 6 months of transfer, locked in for 5 years. |
Section 54 and 54F are not interchangeable. They apply to different categories of the asset that was sold, and carry different conditions on how many other houses you're allowed to own. Using the wrong section is one of the most frequent errors we catch on review — and it's usually only caught after the return is already filed.
5Don't Forget: TDS on the Buyer's Side
If the sale consideration exceeds ₹50 lakh, the buyer — not you — is required to deduct TDS under Section 194-IA and deposit it via Form 26QB. This applies regardless of whether you have a gain or a loss on the sale.
Track this TDS credit and reconcile it against your Form 26AS before filing your return. Mismatches here are one of the most common causes of return-processing delays — an easily avoidable one.
6Sequence It Before You Sign, Not After
Deciding the tax regime and exemption route — and whether you need the Capital Gains Account Scheme to park funds until reinvestment — is a decision made before the sale deed is registered, not while the return is being filed.
Property sales don't leave room for after-the-fact correction. If you're planning one — or have already received an offer — the right time to talk to your CA is before the token amount changes hands, not after the registration is done.