Taxation & Salary APIWeb Calculator UI
Free Property / Real Estate Capital Gains Tax Calculator API (2026)
Fast API comparing 12.5% flat rate against 20% Cost Inflation Index (CII) indexed rate for property sales in India.
Interactive API Playground & Live Test
GET
/api/v1/property-capital-gainsQuery Parameters
Purchase price in ₹
Purchase year (2001-2026)
Sale consideration in ₹
Sale year (default: 2026)
YYYY-MM-DD; with saleDate, the 24-month test is exact and overrides the years
YYYY-MM-DD
Financial year of the improvement (default: purchase year)
Taxable income besides the sale, in ₹. The gain is taxed on top of it with 87A and surcharge. Default ₹15 lakh, as on the page
'new' or 'old' (default: new)
'resident' or 'nri' (default: resident). A non-resident gets no 20% indexed option, no unused basic exemption against the gain and no 87A rebate
curl -X GET "https://fincalculator.in/api/v1/property-capital-gains?purchasePrice=3000000&purchaseYear=2012&salePrice=9000000&saleYear=2026&purchaseDate=2012-06-01&saleDate=2026-06-01&improvementYear=2012&otherIncome=1500000®ime=new&residentialStatus=resident" \
-H "Accept: application/json"Live JSON Response (HTTP 200 OK)
Click "Execute Live API Request" below...Request Parameters Schema
| Parameter | Type | Required | Description / Notes |
|---|---|---|---|
| purchasePrice | number | Required | Purchase price in ₹ |
| purchaseYear | number | Required | Purchase year (2001-2026) |
| salePrice | number | Required | Sale consideration in ₹ |
| saleYear | number | Optional | Sale year (default: 2026) |
| purchaseDate | string | Optional | YYYY-MM-DD; with saleDate, the 24-month test is exact and overrides the years |
| saleDate | string | Optional | YYYY-MM-DD |
| improvementYear | number | Optional | Financial year of the improvement (default: purchase year) |
| otherIncome | number | Optional | Taxable income besides the sale, in ₹. The gain is taxed on top of it with 87A and surcharge. Default ₹15 lakh, as on the page |
| regime | string | Optional | 'new' or 'old' (default: new) |
| residentialStatus | string | Optional | 'resident' or 'nri' (default: resident). A non-resident gets no 20% indexed option, no unused basic exemption against the gain and no 87A rebate |
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Frequently Asked Questions (FAQs)
Is the Free Property / Real Estate Capital Gains Tax Calculator API free to use in production apps?
Yes! All FinCalculator REST APIs are completely free, zero-auth, open-CORS, and edge-cached for high performance across global web and mobile applications.
What is the rate limit for /api/v1/property-capital-gains?
Endpoints are cached at the edge for 24 hours. There are no restrictive rate limits for standard web traffic and mobile applications.