Thanks, Morgan. 

The article you linked to your reply is one of the articles I read and bookmarked, but it doesn’t really answer what to do with the company share of liabilities and how to post the payment to the expenses when the monthly bill comes in.  I already set up both payroll items--employee share and company match—and tied them to the liabilities payable account, as instructed in the article.  Typically, when paying payroll taxes or insurance liabilities, I do not have to do any journal entries to offset the liablity account, but that seems to be the only thing I can do in order to use both payroll items in this situation.

A + B = C,  

"A" being the employee contribution (liability payable)

"B"  being the company match (liability payable)

"C"  being the monthly bill from the investment firm

"D"  would be the “retirement expense” account – where does it come into play? 

Thanks again.