[dodobirdlord]

> I'm skeptical increased payroll taxes are more than these companies' cost to provide insurance.

Doesn't seem unlikely to me, once you have enough employees, average cost per employee ends up being about the population average, skewed heavily by the fact that the company isn't employing very many people past retirement age where so much of total medical expense lies. Profit margins for health insurance companies aren't very high, so after administrative costs, what the average person/company pays in healthcare insurance is about what the average person accrues to their insurance in healthcare costs.

> Also, payroll taxes themselves are also deductible.

Shifting compensation to untaxed benefits brings the savings from corp_tax_rate * payroll_tax_rate to payroll_tax_rate.