Smarter- I assume you mean that the child is an Israeli citizen. I think on the website they said that payments are only made if the child lives in Israel. but I assume that anything already paid into the system remains there until withdrawal at 18 or 21.
By the way, payments start in Jan- but I think the notice said that we have until Jun 1 to decide on what plan to take (or was I confusing that with Jan 6?). If we don’t decide, the default is the investment options (for younger kids), picked randomly from among the choices. Once that track is picked it cannot be changed to a bank track. So my question is, if we don’t decide by Jan, where does the money go in the meantime until we decide? Even a temporary stay may cause both halachic and tax problems.