Solo 401k plan with cash balance plan

[jkdoll2]

A husband and wife want to start a cash balance plan. They each have a solo 401k plan. Can they keep their solo 401k plans along with the cash balance plan or do they need to open a different 401k plan with both as a participant?

[Tom Poje]

my understanding is yes you could have both (a Solo plan is not a SIMPLE plan), so unless perhaps there was special language in the document for whatever reason that said it is the only plan... (but I have never had or worked with Solo plans. I thought they were simply regular plans except limited to owner/spouse only. I didn't think there was any other special language)

this particular website (see bullet point 2 would agree)

https://www.401kinabox.net/SoloDefinedBenefitPlan/Index