The federal first-time buyers’ GST/HST rebate program offers up to $50,000 back on newly-built homes priced up to $1 million, with smaller rebates for homes priced between $1 million and $1.5 million. Substantially renovated homes also qualify. Buyers can apply online or by mail, must be at least 18, and not have owned a home in the past four years. The program aims to support new home purchases and stimulate the housing market.