2

This question already has an answer here:

I haven two passports (US & Irish). I'm currently traveling on my US passport but it's getting full & want to switch to my Irish passport so I will be able to get a visa when in Indonesia. Will I have any problems at immigration? Should I just stay in Malaysia and get another American passport?

marked as duplicate by Michael Hampton, David Richerby, user 56513, Ali Awan, Glorfindel May 30 at 12:40

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

2

There's no problem to "switch" passports during your travels. The only rule is to make sure you leave a country with the same passport you entered with.

I don't know if Malaysia has exit passport control, but if they do, show them your US one when you leave, so they know you left. When you enter Indonesia, show them your Irish passport.

Not the answer you're looking for? Browse other questions tagged or ask your own question.