LOL! What I'm not grasping, is what your not saying. You just pulled "profit sharing" out of nowhere!! You english is good, it just needs to contain pertinent information like "PROFIT SHARING"!!
Your wife's possible contribution = $18,000
6% match by the company = $1080
Missing variable "Profit Sharing" = $21,000 (approx)
=$41,080 (approx)
You have to admit. not mentioning the largest part of the $40,000 equation, makes this math difficult. There has been no mention of Profit Sharing "AT ALL", except for this, right now.
But I thank you for bringing it up, because it just wasn't making any sense to me, prior to the additional $21,000 you now bring up. But that's good profit sharing!!! Gotta admit.