It feels extremely intrusive and odd that a child who will likely never live in a country could have such ties!!
Just to clarify, I’ve not done a CBRA to notify them of her existence / right to citizenship - I guess I’m wondering if I HAVE to do this or is it fine to leave it and deal with it in the future if / when she wants a US passport for herself?
I agree - it's ridiculous. And as things are going, it's likely to get even more ridiculous at some point in the future. But for now:
What I am reading says "CAN" apply, not "MUST" apply for documentation of status. [Bolding is mine in the following.] "
A person born outside the United States who acquires U.S. citizenship at birth is not required to have evidence of such status. However, if the person seeks documentation of U.S. citizenship status, the person may file an Application for Certificate of Citizenship (Form N-600) with USCIS.[48] The Secretary of Homeland Security has jurisdiction over the administration and enforcement of the Immigration and Nationality Act (INA) within the United States, and the Secretary of State has jurisdiction over claims of U.S. citizenship made by persons who are abroad.[49] Therefore, generally, an Application for Certificate of Citizenship is submitted by persons who claim U.S. citizenship and are present within the United States. However, USCIS accepts a Form N-600 filed by a person who does not live in the United States, but USCIS does not adjudicate the application on the merits until the person is present in the United States in order to ensure that USCIS has jurisdiction over the application.[50]
A person who is at least 18 years of age may submit the Application for Certificate of Citizenship on their own behalf. A parent or a legal guardian
may submit the application for a child who has not reached 18 years of age. USCIS issues proof of U.S. citizenship in the form of a Certificate of Citizenship if the Application for Certificate of Citizenship is approved and the person takes the Oath of Allegiance, if required to do so. USCIS does not mail Certificates of Citizenship outside the United States except when a military member is issued a Certificate of Citizenship under INA 320[51] or a military member’s dependent child naturalizes under INA 322(d)."
It looks like when she's sixteen she can renounce and close things with the IRS, but there's nothing you can do for her.
https://1040abroad.com/blog/relief-procedures-for-certain-former-citizens/ More fun reading -
https://www.forbes.com/sites/virginialatorrejeker/2024/04/09/beyond-borders-the-surprising-tax-dilemma-of-accidental-americans/But seriously, I'm not a lawyer. I am not an expert. If it were me in this situation, I'd fly the baby on her British passport - the airlines won't know, US Immigration won't know.... and deal with any fallout later. If there was any fallout. If our legal system goes completely bonkers - and I'm not going to say it won't go full fascist mode at some point - that's the chance you'd be taking. If, in the unlikely world of long lines and understaffed immigration portals, an officer notices her passport is UK and yours is USA and asks... again, this is an "if it were me" thing... I'd just say we hadn't had time to register her yet. Alternately, and more likely, I'd send her through with her dad and then come through the line a bit later. Or use a different line. [This is assuming, of course, that anything I just stated is not illegal.]
But that's just me.