Dual citizenship (also known as dual nationality) is allowed in the UK. This means you can be a British citizen and also a citizen of other countries. You do not need to apply for dual citizenship.
Both the UK and US allow dual citizenship so Americans who would like to apply for British citizenship are able to maintain both citizenships. There is no specific application process to apply for American British dual nationality – all you need to do is to apply to become a UK citizen.
Yes. The United Kingdom allows triple citizenship (multiple citizenship). This means that when you become a British citizen, you don't need to give up previous nationalities. Also, having other citizenships will not affect your application for British citizenship.
Since 1948, the UK has permitted dual citizenship.
Dual citizenship (also known as dual nationality) is allowed in the UK. This means you can be a British citizen and also a citizen of other countries. You do not need to apply for dual citizenship. You can apply for foreign citizenship and keep your British citizenship.
Voting and citizenship
Your UK citizenship will not be affected if you move or retire abroad.
Does the United States allow dual citizenship? Yes, practically speaking. The U.S. government does not require naturalized U.S. citizens to relinquish citizenship in their country of origin.
If you're a dual U.S. citizen living in the U.K., taxes go both ways—so you may end up having to file not only U.S. taxes but also U.K. taxes. Where you fall in the U.K. and U.S. tax brackets can influence decisions on how to file your U.S. taxes, so it's important to understand the U.K. tax bands and taxation rates.
Do Dual Citizens Pay U.S. Taxes? U.S. citizens that have dual citizenship in another country must file taxes in the United States. The United States imposes taxes on citizens regardless of where they live and where they earn their income.
Can You Have Two Passports from Different Countries? Yes, many countries allow their citizens to hold more than one nationality. This means travelers can potentially hold a passport for each country they are a citizen of. Some people are automatically considered dual citizens from birth.
Do you need to declare dual citizenship? If a British citizen wishes to gain dual citizenship by becoming a foreign citizen, they do not need to apply for dual citizenship - they simply apply for their foreign citizenship and retain their British citizenship.
If you have British citizenship, you can't usually be deported or lose your citizenship. You can't apply for citizenship if you've already been found guilty of a serious criminal offence.
Drawbacks of being a dual citizen include the potential for double taxation, the long and expensive process for obtaining dual citizenship, and the fact that you become bound by the laws of two nations.
Is it illegal to have three passports? If your nation does not allow dual citizenship or more then yes it is illegal, unless you renounce that citizenship of course. If your nation allows dual citizenship or more then it is fully allowed and legal to have three passports.
1) Portugal
What make Portugal the easiest country in Europe to gain citizenship is that there are no physical presence requirements. Meaning you only need to hold your resident permit in order to qualify for naturalization. You don't need to spend most of the year in the country like most other countries.
The most difficult countries to obtain citizenship include Vatican City, Liechtenstein, Bhutan, Qatar, Saudi Arabia, Kuwait, Switzerland, China, and North Korea. If you have ever submitted an application for citizenship, you will know just how difficult the process can be.
British citizen
British citizenship allows you to live and work in the United Kingdom free from UK immigration controls. As a British citizen, you are also entitled to a UK passport that you can use to travel freely in and out of the country.
A British national, or United Kingdom national, is a person who possesses a type of British nationality. This includes anyone who is a: British citizen.
There are no real restrictions or definitive rules on which passport you use to book a flight, or any other form of international travel whether via ferry or train. For example, the British passport may allow visa-free entry to more countries than your other passport.
Many bank compliance officers feel obligated to ask customers about their country of citizenship, particularly in order to collect federally mandated information aimed at assessing potential risks associated with so-called “nonresident alien accounts.”
The United Kingdom allows citizens to have dual citizenship, which means you can be a UK citizen and at the same time a citizen from another country. If you're looking to renew your UK passport, there won't be any problem if you have dual citizenship.
You can have a two UK passports at the same time.