• One effect of the expiration of the tax cuts passed in 2001 and 2003 would be on pass-through corporations, whose lowest tax rate would go to 15% and whose top rate would go to 39.6%.
• In another change, the levy on capital gains would rise from 15% to 20%, and rates on dividends would go up.
• The Congressional Budget Office totaled up the changes and found a $560 billion negative effect on the 2013 economy and a drop in GDP growth from 4.4% to 0.5%.

From the article: "Economists at the National Association of Home Builders recently analyzed the impacts of the expiration of the Bush-era tax cuts (or “Taxaggedon,” as tax policy experts call it) on home builders, and the outlook is not bright. ..."