I forget exactly what forms - like a w4 is standard, but I don't know when or what else there might be.
Your tax consultant is charging extra to execute the payments or just to compute how much to pay?
I pay my person maybe $1-2k per year at filing time - it's pretty low touch otherwise, maybe a random question here or there in the year, and we touch base in Q4 about roughly what needs to happen. I consider it money well spent.