UK Citizen by Descent Without a UK Passport

[ideallysleary]

Marco and Zeeba are right on. I've seen it first hand and that's how it goes. That date in 1983 is really critical. One side of the line is a fairly long somewhat expensive but fairly predictable positive outcome; the other side almost - but not completely - impossible.

It is true that you are not a UK by descent or by other way until the UK government says so and issues you a British passport. The process is laborious and it is true that you do not have your US passport either during the procedure, so timing is critical.