Perhaps they would pay less taxes in the US? They would pay MORE taxes! Doctors can incorporate in Canada and pay a 10.5% small business tax rate. If they moved to the US, they would pay either the 39.6% individual income tax rate, and if incorporated as small businesses, they would pay the 35% corporate income tax rate. US corporate tax rates are among the highest in the world so the Canadian doctor’s scare tactics of moving are a total lie from a bunch of greedy, money thirsty, wannabe small business people.