For purposes of determining covered compensation for the 2008 plan year, the taxable wage base is $102,000. Permitted disparity allows for larger contributions or benefits with respect to compensation in excess of the Social Security wage base.
In determining an employee’s covered compensation for a plan year, the taxable wage base for the plan year is the taxable wage base in effect as of the beginning of the plan year.
Revenue Ruling 2007-71 is here .
It will be published in Internal Revenue Bulletin 2007-50 dated December 10, 2007.