[jacalata]

Actually, accounting software doesn't say this. It has a disclaimer of 'no guarantee of being fit for purpose' but it doesn't have a self-dismissable line about 'you agree not to use us to do tax calculations'. If a lawyer wrote that, you should ask another lawyer.

And exactly what data are you trying to pull? Did you know there are people who have lived in the USA for decades who are not citizens? Are you really conflating citizenship with residence? Wow.