In the UK an employer pays no national insurance contributions on salary up tp £5720pa. Everything aboove that threshold he pays 12.8%. Along with employee contributions that is how state pensions and the NHS is funded. If he pays someone say £35,000 a year his NIC cost is another £3747.82, or roughly $6109

What percentage of the wage bill does health insurance cost an employer in the states?

£35,000 is equivalent to $57,050