OK to answer a previous question you posed, VAT is on just about everything you buy. There are a few categories that have a lower rate (5% in the UK) and a very few things that are "zero rated" - mostly public utility-type services and insurance, I think. One "surprise" for many Americans is that VAT is charged on all incoming goods - so if you order stuff from the US, you'll most likely be hit with a VAT bill on the declared value of the shipment. (And this now applies also to downloaded software.) In fact, you often receive a VAT bill even on packages marked as "gifts." It's just how the tax works.

Obviously, there is the national income tax, in addition to your list. Plus the usual "sin taxes" on alcohol, cigarettes and other things that are bad for you. And much of that $10 a gallon for petrol is tax, too.

Someone currently living there may jump in here, but when I was living in the UK there were no "store front" tax preparers like back in the US. There are, of course, computer programs to help you prepare your tax declarations, but most governments now have a much wider array of services available online for taxes, including filing them yourself. No need to pay anyone to "e-file" for you. Except of course for your US taxes, which you will have to continue to file - though generally you only pay US tax on income from a US source, like interest on investments, or ultimately when you get social security or other retirement benefits. (You still declare your worldwide income to the IRS, no matter where you live in the world.)
Cheers,
Bev