Most buyers focus only on the property price, but several extra charges can increase your total cost. Stamp duty and registration can add 5–7%. Under-construction homes attract 1–5% GST, while ready-to-move units have no GST. Banks also charge processing, valuation and legal fees. Builders may take advance deposits for maintenance, clubhouse, electricity and water. Interiors, fittings and shifting add another major expense. Understanding these hidden costs helps you plan your budget better before signing.