Deal seen adding $4T to deficit in 10 years, cutting 2013 growth.

The Taxpayer Relief Act will add almost $4T to the deficit over the next ten years, the Congressional Budget Office has calculated, citing the codification of the Bush-era tax cuts for most Americans. Meanwhile, the deal will probably ensure that the U.S. avoids recession but it will also help cut GDP growth to 1% in Q1 2013 from 3.1% Q3 2012, JPMorgan and BofA economists have forecast.