The requirement for brokers to report the basis of financial instruments is being rolled out in three stages. Basis reporting for sales of stock took effect in 2011, the first year for mutual fund shares and dividend reinvestment plans is 2012, and basis reporting for options and debt instruments was set to begin in 2013. This last piece is the most complicated, and the IRS has announced a one-year delay, so that basis reporting for options and debt instruments will begin in 2014, not 2013.
Text: IRS Notice 2012-34 (PDF)

