Passport question for dual citizens

[BuddhaAtSea]

Right headache and if any of you could make it simple for me, I’d really appreciate it.
I have a British passport and an EU one.

I live in Britain. I book a holiday to EU, the flight is booked with my British passport. I leave the UK showing my British passport. I land, go through immigration and I show my EU passport (is that a problem?). Have my holiday, go through the EU immigration showing my EU passport, and the British one at boarding. I use the British one to get through the immigration at Heathrow. Do I have to use one passport throughout?

Seems like a right pain. How do you go about it if you have dual citizenship?
thank you.

Or do I just show both? Haven’t thought of that.

no you had it right the first time

exit uk with uk passport, enter eu with eu passport, and vice versa coming back

I have US and Irish citizenship. I use the US one entering and leaving the US and the Irish one everywhere else.
I have accidentally used the wrong one on occasion and the brought out the other one when asked. It’s never been a problem as both countries allow you to hold 2 passports.

I got off a long haul flight once and didn’t realise I had used my US passport. I couldn’t understand why I was being questioned about why I was in Ireland and how long I intended to stay. I realised and gave passport control my Irish passport. There was no issue.

I would just use the passport you require to re-enter your home country/country of residence ie your British one. You dont need to travel with both.

I am a dual NZ/UK national. When I moved to the UK I only ever travelled on my UK passport. When I moved back to NZ I had to enter with my NZ passport, I am now resident here so will just travel on my NZ passport, even when visiting the UK. Will do the same with the kids.

I also have an EU and a UK passport. I needed to travel to the UK twice earlier on this year, but just used the EU passport. It was fine as I "let myself out and in" where I permanently live and you use the same border controls at Heathrow, for example, as UK citizens.
The most "hassle" I had was from some jumped up "security" person at the gate of my departure airport. It was like the Spanish inquisition and very intrusive. I managed to shut her up by a) offering her my UK passport (deemed not necessary) and b) telling her that I was not actually going to London, but travelling to attend the funeral of a close relative, who had died unexpectedly.
I have also used my EU passport long haul 3 times without incident. I always have both with me, though, as well as my ID card, which I have been asked for once in 3 years.

you had it roght the first time.

I would suggest traveling with both. If you are resident in UK it is particularly important to show the UK one when re entering the UK as otherwise you can be treated as illegally residing in UK.

For other cpuntries, While you could just use the UK one for everywhere you visit, that may involve longer queues and will at some point also cost extra fees. So for entering the EU, Switzerland,Norway, I’d recommend to use the EU one. Same for exiting those countries as otherwise they may put an exit stamp in your UK passport, which might cause issues later if you don’t have an entry stamp.

You're doing it right - when I read all the instructions for my son who has 2 passports, you use the matching country passport for entering/exiting that country.

For everywhere else, there doesn't seem to be a rule, so use the convenient one.

There is nothing to stop you using your British one throughout except that you’ll be in longer queues in the EU airports.

Passport matching the place you are entering/exiting makes sense but what passport number do you use when booking? Does this need to match up for boarding passes etc?

We have UK/EU passports and now only travel on our EU ones, much easier and no worries re getting stamps wrong and 'overstaying' on uk passports.

I do as you said. Basically whatever will get me in the shorter immigration queue and no questions about how long I’m staying.

When I went to Thailand last year I just travelled on the UK one but generally I take both passports.

For the airline they need to have proof that you have a right to "land" (pass Border Controls ) in the country of arrival before they allow you access to the plane in the country of departure. So you should always book the flight with the passport which gives you the best rights. The airline process is different to immigration control but it has a T&C which will allow staff to refuse boarding if they believe that you would be refused entry.
So a possible improvement is to use the EU one for the outbound flight.

There are also 2 individual record process the UK one and the holiday country one.

At the moment the UK and EU passport (pp) allow you to enter any EU country.
A specific EU country can put a time limit on the total amount of time a non-EU passport holder (UK pp) can be in the country.
Say you travel to it a lot and are over the limit.
If you showed a UK pp and were over the limit you could be refused entry however once you show the EU one you get in because the EU one has the right of unlimited entry and indefinite right to stay.

For the sake of "good housekeeping" in each country's process you should arrive and depart on the same pp.

Going back to the UK you can gain entry on the EU one but the official has the option to deny entry. The official may be wrong but you are deported either back where you came from (the holiday country do not have to take you) or in your "home" country.
Reentry into a country you are a citizen of is different as no official has the righ to refuse your entry (they can arrest you on enty etc) once you are holding your valid pp. plus you get all the other rights and protections of citizenship.

Summary keep doing what you are doing.🏝

I live in the UK, so the departure from and arrival to the UK are on a British passport. I book from the UK with an UK credit card, so for all that I use my British passport.
My arrival to and departure from the EU through EU border control are with an EU passport, to bypass visa, border control queues and that stupid stamp.

Thank you all for your input. I wasn’t sure I’m doing the correct thing.

DH and the DC have EU passports.
We don’t generally book package holidays but when we book flights to The EU we all leave on British passports (and check in with them online).
When we arrive in The EU we all go through the EU gate and I get stamped but they don’t. Then when we leave The EU it’s the same and British passports on arrival in The UK