In many OECD countries, family firms face lower or no succession taxes if they fulfill continuation requirements. We study the effects of such preferential treatment in a two-generation model. Preferential treatment of continued firms leads to more entrepreneurship and higher wages, as entrepreneurs invest more as they value passing on a larger firm. However, more low-ability heirs continue the firm, leading to efficiency losses. In the presence of financial frictions, richer (but less able) heirs may invest more than buyers from outside.