Calculating your stamp duty is straightforward once you know the Stamp Duty formula and what each input means. This guide explains the method in plain language, walks through a manual calculation, and gives worked examples you can follow — then you can do it instantly with the Stamp Duty Calculator.
What is Stamp Duty?
The Stamp Duty calculation tells you your stamp duty from a few simple inputs. The figure you are solving for here is the stamp duty, expressed in INR.
The Stamp Duty formula
The core formula is:
Stamp duty = Property price × Stamp duty rate ÷ 100Here is what each input means:
- Property price — a money amount. Example: ₹50,00,000.
- Stamp duty rate — a percentage, such as an annual rate. Example: 5%.
How to calculate it step by step
- Write down the property price (for example, ₹50,00,000).
- Write down the stamp duty rate (for example, 5%).
- Apply the formula above to get your stamp duty.
- Double-check the result with the Stamp Duty Calculator.
Worked examples
Example 1
| Input / Output | Value |
|---|---|
| Property price | ₹50,00,000 |
| Stamp duty rate | 5% |
| Stamp duty | ₹2,50,000.00 |
| Total with duty | ₹52,50,000.00 |
With property price of ₹50,00,000 and stamp duty rate of 5%, the stamp duty works out to ₹2,50,000.00.
Example 2
With property price of ₹1,00,00,000 and stamp duty rate of 5%, the stamp duty works out to ₹5,00,000.00.
| Result | Value |
|---|---|
| Stamp duty | ₹5,00,000.00 |
| Total with duty | ₹1,05,00,000.00 |
Example 3
With property price of ₹25,00,000 and stamp duty rate of 5%, the stamp duty works out to ₹1,25,000.00.
| Result | Value |
|---|---|
| Stamp duty | ₹1,25,000.00 |
| Total with duty | ₹26,25,000.00 |
Tips for an accurate result
- Keep your units consistent — mixing, say, months with years or grams with kilograms is the most common source of error.
- Round only at the very end. Rounding inputs early can shift the final answer noticeably.
- Re-run the numbers whenever an input changes, rather than estimating from an old result.
- Annual rates must be converted to the period you are calculating for (for example, divide an annual rate by 12 for a monthly figure).
Prefer not to do the maths by hand? — the Stamp Duty Calculator does it instantly, for free, with the formula and a worked example built in.
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