Australian by birth and British by descent (much of Australia’s citizenry) works well; visa free travel to many countries, a special work visa category in the US, and the ability to work in th UK and Europe, at least until any brexit.

Although it keeps you out of parliament. And I think the proportion of Australians with dual British citizenship is greatly exaggerated. (My nearest British ancestory is on the other side of Queen Victoria.)

If just going by economic strength: US + any EU country. As a bonus, if you are of ethnic Chinese descent, you can look into one of the "greater China" regions of HK/Macau/Taiwan as well, depending on where you/your parents were born.

That combo would give you the ability to live and work freely in the three most important economies in the world (US/EU/CN).

The downside to holding US citizenship is your tax situation quickly gets very messy, requiring expensive specialist tax accountants.

See https://www.henleypassportindex.com/improve-passport

"typically it’s hard to maintain more than dual citizenship"

I am considering taking a 3rd. I am aware of some of the hurdles but out of curiosity, where do you see problems?

Generally they don’t want to give naturalization to people with more than one nationality. But if you are a full right citizen by an other rule, you could end up with more than that.

A small detail has to be noted, wether it has been recognized or not and claimed or not, a lot of rules give citizenship to people. The paperwork is about claiming it officially.

Got source? The vast majority of countries either a) insist you renounce all other citizenships on naturalization, whether it's one or three, or b) don't care how many you have.

Some will allow dual citizenship, but place conditions that make it difficult to get more than one. E.g., German citizenship law allows dual citizenship if:

> If a child born to German parents acquires another citizenship at birth (e.g., based on place of birth [birth in jus-soli countries mostly of the Americas], or descent from one parent [one German parent and one foreign parent]).

In theory somebody could have two or three nationalities under that law (two parents and place of birth) but no more.

Your information is incorrect because of many reasons.

1. EU and associated countries (e.g. Switzerland)? Germany does not care

2. Other countries? Give reasons, get a permit.

3. German dual citizenship law does not make any statements how many citizenship you can have.

4. There are countries that do now allow citizens to renounce, e.g. Iran.

You could add a fourth under certain conditions:

Say one parent is German and the other is British, and the child was born in Brazil. If the kid is entitled to Israeli citizenship under the Law of Return, they get to keep all four.

Not quite - the law of return would lead to a renouncing of German citizenship.

You are late to the party, the latest trend is to strip citizenship from naturalized people we don’t like, it’s only possible if they retained one previous citizenship.

I have three (US and two EU countries) and as far as I am aware the biggest hurdle is paying for multiple passport renewals.

Citizenship doesn't go away just because you don't renew your passport.

That depends on the country. You lose Dutch citizenship if you have dual citizenship and don't live in The Netherlands or renew your passport in 10 years.

.. but it does go away if you don't maintain a presence of some variety in the given countries.

No it doesn't. You may lose right of abode but you are unlikely to lose your citizenship.

Simply not true, at least in my case. I haven't been back to my country-of-birth in over 30 years, and have citizenship in the country of my childrens' birth. When the time came to renew my passport, I was informed that my citizenship in my birth country was dependent on whether I had any connection there any more, and since my birth-country has policies regarding dual-citizens needing to justify their citizenship, this was under question. I needed to either go back and live there for a while, or simply give up my citizenship.

Maybe its different in your birth-country and with your citizenship, but its not true that its automatically given and never revoked in every country in the world. Its a case-by-case basis, depending on the policies of the nations involved.

Actually, he is right about the Netherlands. https://ind.nl/en/dutch-citizenship/Pages/Loss-and-the-revok...

I have three, Australia, Eu and a South American country, biggest problem is having to pay for passport renewals and sometimes fulfilling your obligations I.e voting or census. Get as many passports as you can is my recommendation, never know when you might need to flee your country ;)