Haven’t read all the replies so apols if I missed anything but - we’ve decided to leave the UK for the US next year, just bought a house there and are winding up our jobs here. For us, lower taxes weren’t exactly the draw as we’re moving to NYC where they are sky high too, and my husband, who is a top 0.1% earner, will make the same in the US as here roughly. However in my industry, US salaries are 3-5 times higher, so that’s attractive.
That being said, our living costs are about to increase in astronomical ways. Private school alone is $50-70k per child per year, and state schools are not an option really, the few decent ones are so vastly oversubscribed in the cities it’s virtually impossible to get a place. A normal sized family home in a decent enough area on either coast and in many other attractive cities costs millions atm, in our case we’ll be paying $200k mortgage
costs per year, most of which will be interest, and we will live comfortably but not luxuriously (5 bed row house with 3 children, small garden, no private parking, area up and coming rather than posh).
You’ll be aware of the hyper inflated grocery and hospitality prices in the US these days, since 2020 it’s spun entirely out of control. A small fresh juice costs easily $16, a coffee $6-7, a tin of beans $4. These costs vary from state to state a bit but I think the big cities are all roughly the same in this regard.
We have calculated that with health insurance (we’ll be self-employed for starters), school fees, mortgage costs, property taxes, bills and a modest budget for non-essentials, travel and leisure we’ll have an annual burn rate of at the very least $500k as a family of 5. In the UK, we’re taxed to high heavens too but are spending a fraction of this.
If you love your life in the UK I’d stay unless you were planning to move to a very cheap area of the US with similar life quality. The higher living costs in high cost US areas will erode all your salary gains I think. We’re leaving the UK because we really don’t love it here, feel bored and disconnected from the public psyche in Britain, think that London and the country generally are being ruined and have little in common culturally with most colleagues, neighbours and even friends here. We crave the cultural, social and entrepreneurial vibrancy of New York, so for us it’s worth the hassle and enormous extra living costs.
I’d sit down with your husband and make a very careful calculation of what your US life will likely cost and look in more detail at how you’d live, schools and houses and so on. In the abstract it’s impossible to weigh up the pros and cons accurately I think.