Property Cost Formula

Real Estate Formula • Published on September 01, 2026 • Last updated September 01, 2026

Mathematical Equation

$$\text{Total Cost} = P + P\left(\frac{\text{GST}+\text{Stamp Duty}+\text{Registration}+\text{Brokerage}}{100}\right) + \text{Other Charges}$$

Variable Definitions

Base property agreement/purchase price

GST

Goods & Services Tax %, applicable mainly on under-construction property

Stamp Duty

State government stamp duty %, charged on property registration

Registration

Registration fee % charged for recording the sale deed

Brokerage

Real estate agent commission %

Other Charges

Flat fees for parking, society deposit, water/electricity connection, etc.

Detailed Explanation

In-Depth Guide

The advertised price of a property is rarely the full cost of buying it. Government taxes (GST, stamp duty, registration) and transaction costs (brokerage) are each calculated as a percentage of the base price and added on top, along with flat one-time charges, to reveal the true out-of-pocket cost a buyer must budget for.

How to Calculate: Step-by-Step

1. Start with the base agreement value of the property (P). 2. Calculate GST amount = P × GST% (if applicable, typically for under-construction property). 3. Calculate Stamp Duty amount = P × Stamp Duty% (varies by state, typically 5-7%). 4. Calculate Registration amount = P × Registration% (typically 1%). 5. Calculate Brokerage amount = P × Brokerage%. 6. Add all percentage-based amounts plus any flat Other Charges to the base price for the Total Actual Cost.

Worked Calculation Example

Property Price = ₹80,00,000, GST = 5%, Stamp Duty = 6%, Registration = 1%, Brokerage = 1%, Other Charges = ₹50,000: - GST = 80,00,000 × 5% = ₹4,00,000 - Stamp Duty = 80,00,000 × 6% = ₹4,80,000 - Registration = 80,00,000 × 1% = ₹80,000 - Brokerage = 80,00,000 × 1% = ₹80,000 - Total Cost = 80,00,000 + 4,00,000 + 4,80,000 + 80,000 + 80,000 + 50,000 = ₹91,70,000

Common Use Cases

Budgeting the full cash outlay needed before making an offer on a property
Comparing the real cost of under-construction (GST-applicable) vs ready-to-move property
Negotiating brokerage and understanding state-wise stamp duty impact

Frequently Asked Questions

GST typically applies only to under-construction properties sold by a developer. Resale of ready-to-move/completed properties generally does not attract GST, only stamp duty and registration.

Stamp duty is a state subject in India, so each state government sets its own rate, which can range roughly from 3% to 10% depending on the state, property type, and buyer category (e.g., women buyers often get concessional rates).

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