Tops on the CBO’s hit list for housing: Slash deductions for homeowner mortgage interest from the present $1.1 million limit to $500,000, phased in with $100,000 annual reductions starting in 2013 and extending to 2019. Under current law, taxpayers can write off mortgage interest on their principal home debt up to $1 million, and on home equity debt up to $100,000.
Under the CBO’s option, that maximum mortgage debt amount would shrink yearly until it hit $500,000. Over a 10-year period, this change alone would boost federal tax collections by an estimated $41 billion.