If you own a profitable, unincorporated business with your spouse, you probably find the high self-employment (SE) tax bills burdensome. An unincorporated business in which both spouses are active is typically treated by the IRS as a partnership owned 50/50 by the spouses. (For simplicity, when we refer to “partnerships,” we’ll include in our definition limited liability companies that are treated as partnerships for federal tax purposes.) For 2017, that means you’ll each pay the maximum 15.3% SE tax rate on the first $127,200 of your respective shares of net SE income from the business. Those bills can mount up if your business is profitable. To illustrate: Suppose your business generates $250,000 of net SE income in 2017. Each of you will owe $19,125 ($125,000 × 15.3%), for a combined total of $38,250. Fortunately, there are ways spouse-owned businesses can lower their combined SE tax hit. Here are two.