In October 2010, the Treasury Department and the IRS released mandatory cost basis regulations that were enacted as a result of the Economic Stabilization Act of 2008. The new regulations require brokers and mutual fund companies to provide cost basis reporting to the IRS for mutual fund shares acquired after January 1, 2012. Please note that retirement, education savings, and money market accounts are not affected by these new regulations.

What is cost basis?
 
What is changing?
 
What cost basis method will be used?
 
How is cost basis calculated?