Accidental Americans (perhaps born in the US but never lived or worked there) are still required to file U.S. tax returns in perpetuity.
One of the many problems with this is that tax deferred investment options in a U.S. citizens' resident country (i.e. outside the US) are not considered as such by the IRS.
Can a US citizen who lives and works abroad (and plans never to live or retire in the USA) therefore make sensible retirement planning decisions, and if so, how?
For example, could they contribute to a US-based tax deferred scheme like a 401K or an IRA without being resident in the USA or are there any other options available?