Calculating a contribution for a plan that is integrated with social s

[Guest mam]

Let's say you are calculating a profit sharing contribution for a Plan whose Plan Year ends on 7/31/1999. This annual contribution is integrated with Social Security, and is posted to the accounts in December 1999. Which taxablw wage base do you use: 1998's or 1999's????

[Guest TrustMe401k]

You would use the TWB in effect on the first day of the plan year. In this case 1998.