Rental income in India is taxed under the Income Tax Act, 1961, specifically as "Income from House Property." Tax is calculated based on the Gross Annual Value (GAV), from which municipal taxes, a 30% standard deduction, and home loan interest are deducted. Self-occupied properties up to two are exempt, while others may be taxed even if vacant. Subletting income and commercial rentals may fall under different tax heads. NRIs are taxed similarly but must comply with TDS and DTAA rules. GST applies only to commercial rentals above threshold. Taxpayers can reduce liability using standard deductions, loan interest, and occupancy status.