Because the
Companies with between two and 50 employees are eligible to offer the plans beginning this month. Based on rules in the 2006 tax code,
The Pension Protection Act of 2006 required the IRS to determine an interest rate on the cash balance accounts that would not exceed the market rate of return, which the IRS has yet to determine.
Employers could go ahead and offer a DB(k) based on a rate that they determine and adjust it to the IRS figure by the beginning of 2011, but some employers would prefer to have certainty at the outset.