<prompt> Human: Hello Personal Finance. I am a USSwiss citizen but for the abour last decade Ive also lived in Monaco part-time on paper due to traveling constantly. Would it be worth it to apply for Monégasque citizenship since it has a zero income tax as long as I am not french. I know US requires me to pay taxes if they arent met by my country of residence I generally pay swiss taxes since Zürich ist my other home and they more than qualify for US tax. Thank you, and sorry for my English it is early morning and Im typing on my phone before work.  <response>: Theres no dual citizenship in Monaco, so youll have to lose your other citizenships. 