Nie ma stawki 17%. Sa:
After that you will pay tax at the following rates on your earnings or pension:
on the first £2,020 10% (the starting rate)
on the next £29,380 22% (the basic rate)
on any income over £31,400 40% (the higher rate)
tutaj:
http://www.hmrc.gov.uk/leaflets/p3.htm
dowiesz sie jak wylicza sie podatek a dziale LINKI znajdziesz link do kalkulatorka, ktory wyliczy wszystko za Ciebie
pozdr