Capital Gains Tax Calculator for Property
Work out roughly what tax you will pay when you sell your property. Free, instant, and we do not ask for your phone number to show you the answer.
If you bought before April 2001, put the 1 April 2001 value in the first box. That is the figure our report establishes. Do not guess it for anything official.
How to use it
If you bought before April 2001, put the property's value as on 1 April 2001 in the first box, and choose the first option in the year list. That 2001 value is the figure our report establishes with proper evidence. Do not guess it for anything official.
If you bought after April 2001, put what you actually paid and choose the year you bought it.
What the calculator is doing
Two simple steps.
First it adjusts your cost for inflation. The government publishes a number each year called the cost inflation index. The base year, 2001 to 2002, is set at 100. For 2026-27 it is 384. So a cost from 2001 gets multiplied by 384 divided by 100.
Then it subtracts that adjusted cost, plus improvements and selling costs, from your sale price. What is left is the gain you get taxed on.
Why the 2001 value matters so much
Say your father bought a flat in 1985 for eighty thousand rupees, and you sell it for one crore.
Using the eighty thousand, almost the entire crore looks like profit. But if the flat was worth twelve lakh on 1 April 2001, you can use that instead. Twelve lakh adjusted for inflation becomes a much larger number, and the gain you are taxed on falls dramatically.
Try it both ways in the calculator above. The difference is usually the reason people call us.
This is a guide, not a report
No bank, court or tax office will accept a printout from a calculator. What they need is a signed report from a government approved valuer, with real evidence behind the 2001 figure.
That is what we prepare, in 48 to 72 hours.
Questions people ask us
- Where do I get the 1 April 2001 value?
From a government approved valuer. It has to be backed by the notified rates for your colony at that time and records of what similar properties actually sold for. A guessed figure will be rejected if anyone checks. This is what we do.
- Does the calculator tell me the tax I owe?
It shows the gain you would be taxed on. The rate applied to that gain, and any exemption you claim, depend on your own circumstances. Your accountant works that out, and we are happy to speak to them.
- What if I am reinvesting in another house?
You may be able to reduce or remove the tax by reinvesting, under rules with strict timelines. We explain those here. You still need to establish the gain correctly first.
- I inherited the property. What do I put?
Use the date the original owner bought it, not when you inherited. If that was before April 2001, use the 2001 value. More on inherited property.
Checked by Parish Rao, Chartered Engineer and Government Approved Valuer.
Page last checked on 23 August 2026.
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