Not necessarily. There are two tax rates: homestead and non-homestead. Homestead is primary residence, non-homestead is everything else. Zoning, building type, etc. may effect the valuation of the property, but the tax rate is the same whether it's a second home, Airbnb, hotel, factory, retail space, etc. And in many places, businesses have lobbied to have the non-homestead tax rate be lower than the homestead rate. So second homes and rentals are often taxed at a lower rate...