If you are a UK national living in Singapore, you probably left behind an ISA, a workplace pension, and maybe a handful of other UK accounts. Some of them keep working for you. Others quietly stop. Knowing which is which is worth doing in your first year, not your fifth. This is a general overview. UK rules change and individual cases differ, so treat it as a starting point for your own checks. Your ISA: keep it, but you cannot add to it You can keep an existing ISA open afte