While a possible increase in taxes on the "carried interest" of hedge fund and private equity money managers is getting all the attention, in the same bill Congress is also creating a tax mess for small-business owners in the form of an $11 billion tax hike over the next 10 years. The tax increase was included in H.R. 4213, a peddler's wagon of legislation (new spending, physicians' reimbursement, extensions of expired tax breaks, etc.) that was passed by the House in a narrow vote just before Memorial Day and is now being considered by the Senate. The Democratic-backed Senate version...