Sold your Ghaziabad flat to buy another? Here's your Section 54 math.
When you sell a residential flat and reinvest in another one, Section 54 is the provision that matters — and it works on the gain, not your full sale cheque. Enter what you sold, for how much, and when, and this tool shows the indicative gain, your purchase and construction reinvestment windows as calendar dates, and the deadline for parking any uninvested amount before your return falls due.
Educational only — every figure is indicative. It is not tax advice, and neither Vidastu Advisory nor its representatives are tax advisers.
Marketed by Vidastu Advisory · UP-RERA Agent UPRERAAGT000309/01/2026
It takes what you sold (a residential flat), the sale proceeds, the approximate cost you originally paid, and the month you sold — and shows four indicative things: the simple gain arithmetic (proceeds minus cost, not a tax computation), your purchase window for buying a ready flat (one year before the sale to two years after), your construction window for an under-construction or pre-launch flat (three years), and the CGAS deposit deadline — the earliest clock of the three. It does not apply indexation, does not know your filing category, and promises no tax outcome. Educational only — confirm every figure with your CA.
It's the Gain That Has to Move — Not the Whole Cheque.
First-time sellers often assume the entire sale amount has to go into the next flat. Under Section 54, that's not the rule: it is specifically the capital gain — sale proceeds minus your cost — that needs to be reinvested in a residential flat to claim the exemption.
That single distinction is why an "upgrade" purchase — a bigger, better-located flat bought with a top-up from savings or a loan on top of your sale proceeds — doesn't disqualify you. What you reinvest of the gain is what the exemption is measured against. If your upgrade plan involves a pre-launch flat — Gulshan Empire's founding-resident EOI in Wave City, Ghaziabad is one example — ask your CA specifically whether the EOI date or the eventual builder-buyer agreement date is what counts for your reinvestment window, before you commit funds either way.
What Section 54 needs, in short
| What you sold | A residential flat (long-term) |
| What you reinvest | Another residential flat |
| Measured against | The GAIN — not the full proceeds |
| Purchase window | −1 yr / +2 yrs of sale |
| Construction window | +3 yrs of sale |
| If not reinvested by ITR due date | CGAS deposit preserves the claim |
Statute-level outline only. Indicative — confirm with your CA.
Your Sale, in Four Fields.
The tool's scope is deliberately narrow: it counts the reinvestment windows from the sale month you give it, and it flags the deposit date that guards a reinvestment still in progress. Your actual tax it will not touch — no indexation, no exemption amount. And nothing you type leaves this page: figures stay in your browser, untransmitted and unstored.
Sold flat, buying another
Indicative — confirm with your CA.
Your indicative results
Every figure here is deliberately labeled indicative: the dates resolve only to the month you entered, and the gain is one subtraction — not a computation.
Estimated gain to reinvest
Proceeds minus approximate cost — that is the entire formula here. No indexation (cost-inflation adjustment) has been applied, so the number your return will actually carry is the one your CA computes, not this one.
Indicative — confirm with your CA.
Your new flat's status
Indicative — confirm with your CA.
Two windows on the calendar, from your sale month
A ready or existing flat is the purchase case — open from one year before your sale until two years after it. A flat whose completion is the operative event — under-construction, pre-launch — is the construction case, with up to three years from the sale. The precise anchor is your exact date of transfer; a month-only input means these read to the month, not the day.
Indicative — confirm with your CA.
The clock that rings first: your CGAS deposit
Gain still sitting uninvested when your income-tax return falls due must be deposited into a Capital Gains Account Scheme (CGAS) account by the filing deadline — that deposit is what preserves the claim. The date above assumes the typical non-audit individual due date; extensions happen and audit cases differ, so your CA confirms your exact deadline.
Indicative — confirm with your CA.
Conditions the calendar dates don't show
- Only the gain, not the whole cheque: Section 54 is measured against your capital gain — reinvesting less than the full sale amount is fine as long as the gain itself is covered.
- Hold the new flat: part with it inside roughly three years and the exemption you claimed can come undone.
- CGAS before you file: gain that hasn't reached the new flat by your return date belongs in the CGAS account (above) for the claim to survive.
Indicative — confirm with your CA.
Want the windows walked through on a call-back?
Leave your name and number and our sales desk will reach out on WhatsApp. For the tax figures themselves, your CA is the right desk — ours is for the property side.
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By submitting you consent to be contacted and to your details being shared with the RERA-registered promoter. This page is educational — nothing on it is tax advice; confirm every figure with your CA.
Section 54 Calculator — FAQ
Does this calculator handle Section 54F too, or only Section 54?
Only Section 54 — a residential flat sold, reinvested into another residential flat. If what you sold was a plot, land or shares instead of a flat, Section 54F is the sibling provision and it works on different math (net sale consideration, not just the gain); this tool is not built for that case. Which section actually applies to your sale is indicative here — confirm with your CA.
I picked 'under construction' for my new flat — why does the tool still show a purchase window too?
Because both statutory windows exist regardless of your choice — the calculator shows both so you have the full map, and simply flags which one is usually tested for your situation. A purchase window applies to buying an existing or ready flat; a construction window applies when completion is what counts, which is typically the relevant clock for an under-construction or pre-launch flat. Indicative — confirm with your CA.
The tool asks for approximate cost — should I use my original purchase price or today's value?
Use your original acquisition cost (what you actually paid, plus documented improvement costs), not today's market value — market value is not a subtraction input. This calculator does not apply indexation (cost-inflation adjustment) or any grandfathering rule; it is a plain subtraction to show the shape of the number, not your tax computation. Indicative — confirm with your CA.
Why doesn't the calculator show my exact tax saved?
Because the exact exemption depends on facts this tool deliberately does not collect or assume — indexation, your exact date of transfer, whether the new flat is held long enough, and other conditions specific to your return. Showing a precise rupee figure without those facts would be a promise this tool has no right to make. It shows the arithmetic shape and the calendar windows; your CA computes the real number. Indicative — confirm with your CA.
Is my data saved anywhere when I use this calculator?
No. The calculator runs entirely in your browser — the sale amount, cost and dates you type are not transmitted to or stored by this page. Only if you separately choose to send a WhatsApp message, or submit the call-back form above, does any information reach our desk, and that is a deliberate, visible action on your part, not an automatic one. Indicative — confirm with your CA.