Taxes lurk behind court test of Obama health law

While Supreme Court watchers focus on the controversial insurance requirement in President Barack Obama's healthcare law, lesser known is that the court's ruling next month will also decide the fate of billions of dollars in new taxes. The 2010 law includes a 3.8-percent boost in taxes on investment income and a 0.9-percent increase in the Medicare payroll tax, both hitting people who earn more than $200,000 a year. Set to take effect in 2013, the two increases have been called into question by the court case, which also has clouded the outlook for new provisions already in effect, such as a small business tax credit and a tax on tanning salons.