@Vze1zaom , UK ( and most countries ) taxes income on residents unlike US ( which taxes world income on citizens/ Immigrants ). Since your work is done in the USA and you are neither a citizen/ ordinarily resident of UK, your income is taxed ONLY by the USA. There is no reporting requirement to UK ( contracting entity would be showing the amounts as labor contract expenses ).
My reference in this US-UK tax treaty ( available at www.irs.gov, search for tax treaties) and UK --HM Inland Revenue web page.
Does this answer your query ?
