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Dual Citizenship, Explained

How to get dual citizenship in the United States
bold legal
Lissa Jenn

Dual citizenship

The Basics

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Dual citizenship —or dual nationality— is when you are a citizen of two different countries at the same time. In the context of the U.S., it means you’re both a U.S. citizen and a citizen of another country. Not every country allows dual citizenship, and the rules vary among those that do.

Yes, the U.S. allows dual citizenship by default. The government does not require naturalized U.S. citizens to give up their citizenship in their country of origin. Although the Oath of Allegiance to the United States speaks of renouncing “allegiance and fidelity” to other nations, U.S. immigration law does not explicitly address the topic of dual citizenship. The best summarization of the U.S. government’s position on dual citizenship lies in a U.S. Supreme Court opinion, which explains that “a person may have and exercise rights of nationality in two countries and be subject to the responsibilities of both.” The U.S. Department of State also has a more technical discussion of dual citizenship.

Just because the United States allows dual citizenship, however, doesn’t necessarily mean your country of origin does, too. Some countries, such as China and India, will not recognize your status as a naturalized American on their soil. You may even lose your citizenship automatically in those countries upon becoming a U.S. citizen. It’s therefore important to understand the dual citizenship rules in your country of origin before pursuing U.S. citizenship.

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What Are The Benefits of Dual Nationality?

Having U.S. citizenship, in addition to citizenship in another country, provides many advantages that could help you meet certain goals. It’s important to be aware, however, of the obligations, you would be taking on as a naturalized American. (Our detailed guide to the rights and duties of U.S. citizens also has more information for those who seek only U.S. citizenship, not dual citizenship.)

Rights of dual citizens in the United States

You can work anywhere

You can apply for employment anywhere in the United States without first obtaining a work visa. As a dual citizen, however, you could be overlooked for certain federal jobs, which often require a security clearance and the ability to maintain confidentiality of classified state information. That could be a challenge if you’re also loyal to a nation that has conflicting interests with the United States.

You can travel without restrictions

You can travel abroad for as long as you’d like without any risk of losing your U.S. citizenship. And if you plan to stay outside of the United States for longer than a year, you won’t need a re-entry permit in order to return, as is the case for green card holders (permanent residents).

You can obtain green cards for your family

Your parents, adult children, and siblings can apply for their own green cards.

You can vote

You can vote in any U.S. election. In the United States, only citizens are allowed to vote in federal elections.

You can attend school

You can enroll in a U.S. school without a student visa and without paying international student tuition rates.

You can access public benefits, if necessary

Assuming you meet the eligibility requirements, you can apply for public benefits, including access to tuition assistance that’s available only to U.S. citizens.

Obligations of dual citizens in the United States

You must pay U.S. taxes for life

As a U.S. citizen, you must file (and pay, if necessary) U.S. income and other taxes for life — even for the income you earn outside of the United States — regardless of where you live. This means that you could owe taxes on the same income to both the United States and to your other country of citizenship unless that country has an agreement with the United States that allows dual citizens to avoid “double taxation.”

You must disclose any previous encounters with law enforcement

U.S. Citizenship and Immigration Services (USCIS) officers who evaluate citizenship applications scrutinize applicants’ backgrounds very heavily. Certain types of violations, such as immigration fraud, drug abuse, or domestic violence, could expose you to the possibility of deportation. If you’re concerned about your history with law enforcement, it’s important to seek legal help before applying for naturalization.

You must serve in the military if required by law

All males who have lived in the United States or received a green card between the ages of 18 and 26 — unless they had an immigration status other than “green card holder” — are required to register with the Selective Service System. In case of war, a U.S. citizen must serve in the U.S. military (in combat or otherwise) if called upon to do so by the government.

You must serve on a jury when summoned

Jury duty is mandatory for all U.S. citizens. You may not necessarily need to serve, however. The judge and attorneys in a legal proceeding must select you as a jury panelist in order to actually serve. The selection process happens after you are summoned to court.

How to Get Dual Citizenship


How can I obtain dual citizenship in the United States?

There is no application or form available to file for “dual citizenship” in the United States. Obtaining dual citizenship simply means applying for a second citizenship.

Before you apply for U.S. citizenship as your second citizenship status, it’s crucial to contact the embassy or consulate of your country of origin to find out whether that country allows dual citizenship in the first place. Otherwise, you may lose your citizenship in that country without knowing.

Once you’ve determined that your country of origin will recognize your U.S. citizenship status, you will need to make sure you’ve satisfied all naturalization requirements (unless you qualify for U.S. citizenship through a parent). You can then begin the naturalization process by submitting Form N-400 (officially called the “Application for Naturalization”) to U.S. Citizenship and Immigration Services (USCIS).

Our detailed guide to the naturalization process explains the rest of the steps, eligibility criteria, requirements, costs, and more.


When should I apply for dual citizenship?

You can apply any time after meeting the eligibility requirements for naturalization, which is usually 3–5 years after getting a green card.


How long is the process?

Filing your citizenship application with USCIS is only the first step of the process. Overall, naturalization can take up to 1.6 years, depending on the USCIS field office that receives your application and how soon you start the process. (See our detailed guide to the naturalization timeline for more information.)

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Countries that Allow Dual Citizenship (or Don’t)

More than 75 percent of the world’s countries allowed dual citizenship in 2020. Their rules, however, are not uniform. The following table lists the 10 countries with the highest green card holder populations who are eligible to naturalize in the United States, as well as whether those countries recognize dual citizenship:

Country of BirthRecognizes Dual U.S. Citizenship?More Information
MexicoYesMexican citizens who naturalize in the United States may keep their Mexican nationality but may not vote and may not run or serve in public office in Mexico. Those who obtained U.S. citizenship before 1998, however, automatically lost their Mexican nationality and needed to apply within 5 years to reclaim it. (See more info about dual citizenship in the USA and Mexico.)
ChinaNoChinese citizens who naturalize in the United States automatically lose their Chinese citizenship. (See more info about dual citizenship in the USA and China.)
PhilippinesYesFilipino citizens who naturalize in the United States automatically lose their Filipino citizenship, but natural-born Filipinos may apply to reclaim it. (See more info about immigrating to the USA from the Philippines.)
CubaUncertain It is unclear from both official and unofficial sources whether Cuban citizens who naturalize in the United States would automatically lose their Cuban citizenship. The U.S. Embassy in Cuba does, however, acknowledge that some U.S. citizens are also Cuban citizens. U.S. citizens who were born in Cuba will be treated by the Cuban government as Cuban citizens. (See more info about dual citizenship in the USA and Cuba.)
Dominican RepublicYesDominican citizens who naturalize in the United States may keep their Dominican citizenship. Dual citizens, however, may not run for Dominican president or vice president and will not be recognized as Dominican diplomats or consuls by the U.S. government. (See more info about dual citizenship in the USA and the Dominican Republic.)
IndiaNot entirelyIndian citizens who naturalize in the United States automatically lose their Indian citizenship but may register as an “Overseas Citizen of India” (OCI). OCIs receive a multi-entry permanent visa, are exempt from registering as foreign nationals, and are entitled to all rights of non-resident Indians but have no political rights in India. (See more info about dual citizenship in the USA and India.)
CanadaYesCanadian citizens who naturalize in the United States may keep their Canadian citizenship. (See more info about dual citizenship in the USA and Canada.)
VietnamYes Vietnamese citizens who naturalize in the United States automatically lose their Vietnamese citizenship but may apply to reclaim it. (See more info about dual citizenship in the USA and Vietnam.)
United KingdomYesBritish citizens who naturalize in the United States may keep their British citizenship. (See more info about dual citizenship in the USA and the U.K.)
El SalvadorYesSalvadoran citizens who naturalize in the United States may keep their Salvadoran citizenship only if they were born in El Salvador. (See more info about dual citizenship in the USA and El Salvador.)


In the U.S., anyone who fulfills the requirements for naturalization may be able to become a U.S. citizen. However, you should contact the embassy or consulate of the other country you hold citizenship with to see what the requirements are for your country.

If you are a U.S. citizen with more than one passport, you must use your U.S. passport to enter and leave the U.S.. If you are not traveling to the U.S., you may use whichever passport you prefer.

Being a U.S. citizen gives you all the rights and responsibilities of citizenship as listed above. If you’re a green card holder, you’ll still be able to work and live in the U.S. but you may have different obligations. For example, if you want to leave the U.S. for more than a year, you might have to apply for a re-entry permit before you leave.

Yes, you may hold citizenship in three countries. The same rules apply as for dual citizenship — not every country allows for multiple citizenships, so you would need to check whether your country of origin permits triple citizenship.

Generally, if a country allows dual citizenship it most likely allows triple citizenship. It’s best to check the embassy or consulate website of the countries to be sure.

Yes, the U.S. does allow for triple citizenship and does not require naturalized U.S. citizens to give up citizenship in their home country or other countries.

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