My girlfriend has dual US - JAP Citizenship.

I am an AUS - NZ dual citizen thinking of applying for UK Citizenship as well.

Will we be able to pass all of these to our children?

If not then can we pass down any combination of 4?

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    Possible duplicate of What is the highest number of citizenships one can hold? – Midavalo Aug 21 '17 at 0:46
  • We need the residential histories of both of you plus how you came to acquire these various nationalities. I should note the passport does not equal citizenship. You may have a passport of country but not be a citizen. – ouflak Aug 21 '17 at 6:20
  • @ouflak in what case does any of those countries issue passports to non citizens? Are you thinking of Swain's Islanders? – phoog Aug 21 '17 at 7:57
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    @ouflak I received citizenship from both countries (NZ and AUS) as I was born in NZ and I lived in Australia for a number of years (attended citizenship ceremony). My partner is a US Citizen by birth and her Father and she is a Japanese citizen by descent (with passport) from her Mother. – Charlie Song Aug 22 '17 at 6:50
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    Ok, I think that clears things up just about enough. Assuming you acquire UK citizenship, then it is in theory possible for the child have NZ, US, AUS, and UK citizenship at birth. There are still some contigencies. How old is she and has she lived the U.S. for atleast 5 years, 2 of those after her 14th birthday? Are you a permanent resident in the UK? If so, no need to acquire UK citizenship for the child (born in the UK) to also have UK citizenship. Depending on her age, I'm not sure she still has Japanese citizenship, but I've never really heard of them being super strict on that. – ouflak Aug 22 '17 at 7:04

This question has a good answer in the duplicate, but for your specific situation: UK, USA, AUS, and NZ are no problem to hold multiple citizenships. However, it can get expensive to maintain up-to-date passports for all of them. The one you may have more difficulty with is Japan, as Japanese nationality law does not generally support multiple citizenships (but, it's complicated).

Each country decides its own rules for determining who is or can be a citizen, and there is no overarching rule that places a maximum on the number of citizenships that an individual may hold.

  • As ouflak noted in his comment, however, some of the countries mentioned, at least the US and the UK, do not confer citizenship on all children of their citizens if the child is born abroad. So even if it's possible for a child to hold all of those citizenships simultaneously, it may not be possible for Charlie Song's child to hold all of them. – phoog Aug 21 '17 at 8:02
  • @phoog: Good point, same for NZ and AUS. It is in fact possible for the parents to hold all those citizenships, yet the child to be entitled to none of them (depending on where the child is born). – Greg Hewgill Aug 21 '17 at 10:36
  • @GregHewgill Hi Greg, Being able to pass down your passport by descent is not a subject I am too knowledgeable on. How is it that the child would not be entitled to them? Are they not a citizen by right (by descent) upon birth because of their parent's citizenship? – Charlie Song Aug 21 '17 at 10:41
  • @CharlieSong It depends on the rules of the country. For example, for New Zealand, if a parent who is themselves a citizen by descent has a child outside NZ, the child is not entitled to NZ citizenship automatically. Search for "[country] nationality law" in Wikipedia for detailed info. – Greg Hewgill Aug 21 '17 at 10:56
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    @CharlieSong in particular, children born in the UK are only British citizens if one of the parents is "settled" (which you are if you have ILR). Similarly, for "passed down" citizenship it's usually not necessary to apply, but sometimes it is. The deadline can be as early as the child's first birthday, so do look into it promptly. Come to think of it, the bureaucracy of all that is probably more of a burden than passport fees would be. – phoog Aug 22 '17 at 15:39

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