Summary: Whatever other problems the IRS has had, in the past two years it has been able to boost the rate of voluntary taxpayer filing compliance. Understanding how it was able to do so will be important to dealing with next year's filing period, when the agency and taxpayers will be dealing with a whole new set of tax laws. Mallory Barg Bulman, vice president for research and evaluation at the Partnership for Public Service, joined Federal Drive with Tom Temin with highlights of a detailed analysis of the IRS strategy published April 12.