I just pointed out you are wrong, that you wrote there is no Federal income tax in Sweden, there is. Without knowing all of the facts, I suspect the total percentage of taxes is higher in Sweden that in USA. Check this out: http://www.nationmaster.com/graph-T/tax_tot_tax_as_of_gdp
I think it covers sales taxes, property taxes, income taxes, payroll taxes, and other taxes levied by all tax collecting entities. USA is way down on the list, Sweden is at the top.
I think before you reply next time, so I don't have to waste my valuable time educating the masses, research your facts first.
This can be complicated. Much easier is to compare the FINAL result - all government budgets combined (in case of US, federal, state, local etc ) and compare it to GDP.
The US government budget is about 34% of GDP, state and local government budgets are about 17%. It adds up little above 50%. In Sweden the government budget (there is not state/local versus federal) and is little above 50%.
Comparing the government spending in Sweden to the only one layer of US government is misleading to say the least.