Bert, you have no idea how FUBAR tax rates are in the US. Each county in each state sets their own rate. In the county i live in has a fine arts sales tax added in to support theaters in the county as an exemple
Ours was just as bad till some really greedy moron made a constitutional challenge to state based fuel tax .
So faced with loosing a major source of income the states all agreed to a system where the Feds levy the tax & they all get a cut
Mind you we only had to get agreement from 8 governments not 50 .
States still levee taxes, but not sales tax apart from stamp duty which is payable on every contract that has to be registered like buying a house.
Local government taxes land to cover the costs of local roads, waste collection & all those town hall type things
I always have a laugh at the idiot morons who compare our income tax to yours then complain we are taxed too much when in reality we are ranked around 4th in the low tax regimes world wide particulalry as there is neither death duties nor inherientance tax ( which their should be ) .
And yes we do get a lot of very wealthy people from the USA & the UK immigrating down here so they can die tax free .
Although the UK post Brexit will now tax inherientances on all UK citizens regardless of where the deceased resided .
Apparently Spains biggest source of foreign exchange is UK citizens , moving there then becoming Spanish citizens so they can avoid the UK death tax by setting up funds for their children with Spanish Banks \
Eventually the entire planet will wake up and shift to turnover tax for businesses and flat rate income tax for people and the effective rates will be the same
Plus of course the Tobin tax of 0.001 % on all foreign currency exchanges that would alleviate world poverty in less than a decade as all those obscenely wealth people / funds that extract money by playing the Forex market will finally pay tax on their massive profits .