As the mortgage “crisis” continues to garner attention from policymakers seeking to do something to help out homeowners including possible use of the tax code, here’s an interesting fact to remember for those complaining about federal policies towards housing courtesy of CBO: Effective Tax Rate on Capital Income = 13.8 percent Effective Tax Rate on Capital Income Derived from Owner-Occupied Housing = – 5.1 percent Yes, that’s a negative effective tax rate. For a good commentary on a recent proposal from the Treasury Department to have the tax code enter the bailout discussion, read this from Howard Gleckman of the Urban Institute.