The best choice of entity can affect your business in several ways, including the amount of your tax bill. In some cases, businesses decide to switch from one entity type to another. Although S corporations can provide substantial tax benefits over C corporations in some circumstances, there are potentially costly tax issues that you should assess before making the decision to convert from a C corporation to an S corporation. Here are four issues to consider: (1) LIFO inventories C corporations that use last-in, first-out (LIFO) inventories must pay tax on the benefits they derived by using LIFO if they convert to S corporations. The tax can be spread over four years. This cost must be weighed against the potential tax gains from converting to S status. (2) Built-in...