No one can possibly say for sure, but it will be very high. Just one aspect of it will be the cost of complying with all of the tax rules, as we read in this Washington Examiner piece — roughly 80 million man hours per year.
Employing people just to do a lot of new, needless paperwork wastes productive talent. This is one reason why America’s rate of economic growth has been declining — more and more time is absorbed in completely unproductive tasks mandated by the government.