You're confusing accounting expenses and the cost of running a business. Even personal taxes are a pain the US. So, yes, doing your own corporate taxes in the

You're confusing accounting expenses and the cost of running a business. Even personal taxes are a pain the US. So, yes, doing your own corporate taxes in the US is likely not a good idea, especially if you hire people across several states. But the cost of an accountant is a minuscule cost compared to paying X% more across your entire payroll (not to mention other aspects).