You are right! Boris Johnson gave up his US birthplace nationality to reduce his tax implications.
Bet it’s a nightmare for H&M and requires an expert transnational accountancy team!
I wonder if tax on all those book/Netflix royalties is one of the reasons Harry now wants some sort of commonwealth job? Not being resident in the US would likely reduce his taxes (although Meghan would still have to pay the IRS?)
I’m sort of surprised that Meghan wasn’t compelled to naturalise and give up US nationality before marriage, but it is a long process and H&M didn’t have much time re: having babies due to age, so maybe that was part of the decision making.
Being an international couple seems romantic but it’s a pain in the arse for many practical reasons - especially if you both actually like your families and want kids to see both sets of grandparents- not an issue for Harry at the moment, seemingly!