Sure, for San Francisco according to https://www.quora.com/What-is-the-income-tax-rate-on-a-100k-salary-in-San-Francisco?share=1 https://www.quora.com/What-is-t

Sure, for San Francisco according to https://www.quora.com/What-is-the-income-tax-rate-on-a-100k-salary-in-San-Francisco?share=1 https://www.quora.com/What-is-the-income-tax-rate-on-a-100k-... it's 34K USD of state and federal income tax on 100K, so you pay ~34%, plus healthcare costs. In the UK, 100K USD is ~75K GBP, and according to the excellent tax calculator here https://listentotaxman.com/76467 https://listentotaxman.com/76467? you pay ~32% if you don't count Employers NI (which no-one would ordinarily in discussion, and really if I am to make that adjustment I should really ensure the grossed up amount was 76K, but it will make at most a few percentage point of difference), and if you do it's ~39%. It's quite possible I'm missing some taxation or complexity on the US side (FICA?); I'm UK resident not US resident. The UK side is correct. Other notable tax differences that come to mind include: * No worldwide income tax in the UK * Capital gains is a single rate in the UK * No property tax (we have Council Tax instead, and the average for a Band D property in England is £1,484/year)