[Question50]

Nationality & tax laws are two different though, in the case of the USA, intertwined things.

One can be born abroad to a US citizen and not be eligible for US citizenship; Keanu Reves is a great example of that.[1] However, that child would be considered a "US Person" by the IRS and subject to US taxes.

[1] https://en.wikipedia.org/wiki/Keanu_Reeves

[bialpio]

> One can be born abroad to a US citizen and not be eligible for US citizenship;

Note that I wrote "parents", not "parent", although full rules do specify additional residency requirement, so my statement may be considered incorrect, but not because of what you are pointing out. : - P

Reference for whoever's interested: https://travel.state.gov/content/travel/en/legal/travel-lega...

[true_religion]

Keanu was born in 1964. I believe the rule at the time was that you needed to be born to a US mother in order to automatically have US citizenship at birth. Otherwise you needed to go through a processes.

No doubt this was to avoid having all the children of anyone a US serviceman interacted with abroad claim US citizenship.

[Question50]

No, though that was the case pre-1934 [1]. Remember that Hawaii, where his father is from, didn't become a state until 1959 and there are physical residence/presence tests required to pass on citizenship[2]; ex:

"A U.S. citizen may have automatically acquired U.S. citizenship based on birth in the United States, but never actually resided in the United States. This U.S. citizen will not have established residence in the United States, and may be unable to transmit U.S. citizenship to his or her own children."

[1] https://en.wikipedia.org/wiki/Birthright_citizenship_in_the_... [2] https://www.uscis.gov/policy-manual/volume-12-part-h-chapter...