I realize that this may barely count as abroad in some folks mind, but we moved from the US (Tampa, FL) to Canada in July 2020. There are certainly pros and cons, but we love where we are (semi-rural Nova Scotia). As other folks have mentioned, there are certainly complexities when it comes to tax time and holding investments, but it's certainly doable. One nice thing about Canada is that they recognize Roth IRAs. We can't contribute to them anymore, but we declared them with our first year's taxes, and they'll be tax-free forever going forward.