you can just withdraw it. Their website should have a way to do a bank transfer or write you a check. You will owe taxes, but if you're never coming back to th

you can just withdraw it. Their website should have a way to do a bank transfer or write you a check. You will owe taxes, but if you're never coming back to the US, then whatever. If you're coming back, then you can generally invest your HSA in a mutual fund(most have some limited investment options accessible via their website) and then your HSA basically turns into an IRA retirement fund at age 65.