stamp both passports?
I am putting this post on Asia - northeast, because I might be travelling through at least China in the foreseeable future. but it could relate to any region. I have dual citizenship. Up to now, I have only ever presented one or other passport at border posts and other immigration check points. However, there have arisen technical reasons why it could be advantageous to use both at the same time, if that is possible. So, all those dual citizens out there, is it an option to present both passports to be stamped at the immigration desk? Or, would it be possible to enter on one passport and exit on the other? Provided, I suppose, at departure you show the entry stamp on the first passport. This is all something that I hadn't thought about till quite recently. I suspect there must be someone out there with some idea about this. Thanks in advance for any suggestions.4
First off, China officially does NOT recognize dual citizenship. If you possess any form of Chinese citizenship (Chinese Shenfenzheng, Hong Kong ID etc), they consider you one of them and theoretically can ask you to give up one nationality or the other. Probably won't happen but why risk it?Secondly, #2 and #3 are right. Have you ever heard of people successfully doing what you asked about?
5
There is no reason that you can't enter a country on one passport, depart on that same passport and enter the adjacent country on a different passport. I have done this numerous times without problems.For example, if you hold a US and an Australian passport, you could enter China on your Australian passport as the visa is cheaper and depart on that passport and then enter Mongolia on your US passport which doesn't require a visa and then exit to Russia and enter on your Australian passport which is cheaper to get a visa.
But you cannot enter China on one passport and depart on another and the immigration folks won't stamp entry for two passports.
Ruth
6
Thanks everyone, useful information, especially Everbright's comment that you can exit country A on passport C and enter B on D. I had wondered if they might take - at the entry point - an interest in how you materialized at the border without evidently having been in any country immediately prior to that. Apparently they don't. I would call that a tacit averting of the official gaze; an atypically civilized practice among bureaucrats, one to celebrate. E una cosa meravigliosa!FMSaigon: you're wrong and wrong again. I've travelled through China many, many times, sometimes without a visa and never with any problems. "Without a visa" means you're transiting, but your passport will still generally need a stamp (mine has anyway, because my ticket, although involving only one official stop, often requires a change of flight between domestic and international, and another actually stop - there was once when I really went straight on,.. not sure, think I had to get a stamp there too). Instead of a visa, you get a permit till next day, only for that airport and city.

