We are going through our first termination of a cash balance plan. The plan is a calendar year plan that is terminating on July 31, 2008. We are calculating a contribution based on the salaries through July 31st. The question I have concerns the interest credits. For example, assume that distributions will be done on April 1, 2009. My opinion is that the interest credits continue until the actual date of distribution and thus the final contribution amount would not be determined until April 1st. The other option would be to determine acount balances with interest credits at July 31, 2008, make the contribution based on the July 31 asset value, and then the account balances would be adjusted with actual gains and losses until April 1st. Since this is a defined benefit plan, I don't think this second option is correct, but I just wanted to see what ideas other people have.
Thanks.