These are big tax breaks.
Check it out:

Fifty-five temporary tax breaks are expiring at the end of the year. Among the big ones:

—A tax credit for research and development, benefiting a wide range of industries, including manufacturers, pharmaceutical makers and high tech companies. The tax break saved companies an estimated $6.2 billion in 2013.

—An exemption that allows banks, insurance companies and other financial firms to shield foreign profits from being taxed by the U.S. The tax break is important to major multinational banks and financial firms, saving them an estimated $9.4 billion in 2013.