Post
by JAJ » Fri Jul 07, 2017 3:40 am
There is no obligation on a British citizen to keep a valid British passport. This is especially the case if you no longer live in the United Kingdom. However- you should be aware that after a certain period of time you will no longer be able to simply renew your passport and would have to make a first-time application should you want a new one. Either way-you should take good care of your citizenship documentation (naturalisation certificate and expired British passports) in case you find that the Home Office has lost records in future.
As far as I am aware, it is possible to get a Right of Abode stamp if you no longer hold a British passport- but this may simply signal your British citizenship to the other country. Also- depending on the other country's laws, there is a distinction between those that say your local citizenship can be (or likely will be) revoked if they find out you're also British- but revocation doesn't happen until they decide it does. Example- Malaysia. As opposed to some countries who would say that your local citizenship is automatically revoked whether or not they know about any foreign citizenship (example- India).
If you want to visit the United Kingdom using a foreign passport- it depends on whether that passport is visa-exempt for tourist purposes.
This is not intended to be legal or professional advice in any jurisdiction.