The problem is the word 'will'. Here's a rule for you:
When you are talking about future time, there are several conjunctions which must be followed by a present tense or a present perfect, but not a future. These are the most common ones:
when, if, unless, as soon as, unless, by the time
So the correct form of the verb in your sentence should be simply 'retire' :
"....take me with you when you retire."