I don't know what you mean by taxes, my question is about 250k base, excluding bonuses, stock, and excluding the supposed monetary value of benefits/training/travel/home office whatnot
The statement was that the engineer is a $250k asset to the company.
Rule of thumb TCO for headcount is 1.5-2x salary to account for taxes, Medicare, health insurance, equipment cost, licenses, office square footage, stock options, travel, etc.
So a $250k asset from a business perspective is typically someone that makes $125k-$165k.