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Danish Law Allowing Dual Citizenship in Effect September 1, 2015

By: Boryana Arsova, J.D., LL.M., Associate

On December 18, 2014, the Danish parliament voted to pass a law which will allow Danes to become citizens of another country without having to give up their Danish citizenship.  The new law will also make it possible for people who have lost their Danish citizenship by becoming citizens of another country to reinstate their Danish citizenship during a five year period, from September 1, 2015 to August 31, 2020.

The new law will come into effect on September 1, 2015.  The reason for this delayed implementation is that Denmark, which is currently a party to the European Council’s Convention on the Reduction of Cases of Multiple Nationality and on Military Obligations in Cases of Multiple Nationality, needs to denounce Chapter I of that Convention, which provides that in case of voluntary naturalization nationals of Contracting Parties cannot retain their former nationality.  The denunciation requires a one-year notice and will take effect for Denmark on August 26, 2015.

If you want to take advantage of the new Danish law and become a dual citizen after September 1, 2015, this is what you need to know:

How to Apply for US Citizenship? 

If you are a Danish citizen and live in the United States, you may be eligible to apply for US citizenship if you meet the following requirements:

  • You are at least 18 years old at the time of your application;
  • You have been a U.S. permanent resident – a green card holder – for at least five years (three years if your permanent residency is based on marriage to a U.S. citizen);
  • Demonstrate continuous residence and physical presence in the United States;
  • Demonstrate that you have lived in the state or USCIS district where you will apply for U.S. Citizenship for at least three months;
  • You are a person of good moral character;
  • Successfully pass a U.S. civics test and an English test;
  • Demonstrate an attachment to the principles and ideas of the U.S. Constitution; and
  • Take an oath of allegiance to the United States.

When considering whether or not to apply for a U.S. citizenship, you should consider the benefits and privileges, as well as the obligations that follow from acquiring U.S. citizenship.

If you become a U.S. citizen, you will enjoy the following privileges:

  • Bring family members to the United States: family members of U.S. citizens are given priority when legally immigrating to the United States.
  • Right to vote in elections for public officials.
  • Right to apply for federal employment requiring U.S. citizenship.
  • Right to run for elected office.
  • International protection: the United States protects its citizens abroad through its embassies and consulates.
  • Federal Student Aid: the federal government provides different types of financial assistance for students, including scholarships and grants that are open exclusively to U.S. citizens.
  • Estate planning benefits:
  • The unlimited marital deduction applies only if the surviving spouse is a U.S. citizen. Under that rule, assets that are left to a surviving spouse, who is a U.S. citizen, are not subject to federal estate tax, no matter how much their value is. This rule, however, does not apply to a surviving spouse who is not a U.S. citizen, even if he or she is a permanent resident.
  • If your spouse is a U.S. citizen, any gift given to him or her during your life is free of federal gift tax. If your spouse is not a U.S. citizen, however, the special tax-free rule for spouses is limited to $147,000 a year (for 2015; the amount is indexed for inflation).

As a U.S. citizen you will also have certain responsibilities, such as:

  • Serve on a jury when called upon.
  • Pay federal, state and local taxes honestly and on time.
  • Support and defend the Constitution.
  • Defend the country if the need should arise.
  • Participate in the democratic process.
  • Participate in your local community and stay informed on issues affecting your community.
  • Respect and obey federal, state and local laws.

How to Regain Danish Citizenship?

If you have acquired the citizenship of another country and as a result have lost your Danish citizenship, you may be able to reinstate your Danish citizenship. Under the new law, you will be required to submit a declaration to reinstate your Danish citizenship within the five year period from the time the law comes into effect, i.e. September 1, 2015 until August 31, 2020. The declaration is available from Udlændinge- og Integrationsministeriet . The declaration must be submitted to Udlændinge- og Integrationsministeriet in Denmark; please contact your nearest Danish Consulate or Embassy for further instructions and assistance.

If a parent files a declaration to reinstate Danish citizenship, his or her unmarried child under the age of 18 will be automatically included in the declaration, unless it is explicitly stated that the child is not included. The parent filing the declaration must have custody of the child to be able to include him or her in the declaration.  If the child is adopted, the adoption process must have been completed before the child turns 12 years old and must have also been ratified by the Danish authorities.

A person who has been convicted and sentenced to imprisonment between the time he or she lost his or her Danish citizenship and the present will not be eligible for reinstatement of Danish citizenship.

Children Born Abroad

The new Danish law allowing dual citizenship will not affect the “22-Year Rule” applicable to children born abroad by one or two Danish parents. Under that rule, children who were born abroad but can demonstrate a close association with Denmark prior to their 22nd birthday, can apply to retain their citizenship.  The child must file the application either between the age of 20 and 21 OR between the age of 21 and 22 years, otherwise the child will forfeit his or her citizenship upon turning 22 years old.  The exact window for submitting the application depends on the country of origin of the documents submitted with the application. Please call your nearest Embassy or Consulate to find out when the application must be submitted.

Danes born abroad by one or two Danish parents and now over the age of 22 are still allowed to apply for “Proof of Danish Citizenship.” Again, a key requirement is that the application must show that the person maintained close ties with Denmark and that he or she had permanent residency in Denmark for at least a year before turning 22 years old.

For more information on the process of applying for a “Certificate of Danish Citizenship,” please contact the Danish Consulate or Embassy nearest you or read more at the website for Udlændinge- og Integrationsministeriet .

Important Caveats 

It is important to note that the old rules regarding dual citizenship in Denmark remained in effect until September 1, 2015.  This means that if you became a citizen of another country before that date, you automatically lost your Danish citizenship.

Also, please note that the reinstatement period under the new law is only five years.  If you do not file a declaration to reinstate your Danish citizenship within this period, you will not be able to take advantage of the simplified procedure under the new law, but would instead have to go through the general naturalization process in Denmark, which requires proof of continuous residency in Denmark.

Martensen Wright PC has a singular focus: Serving Danes in the US.  For more information on how to obtain U.S. citizenship and how the experienced attorneys of Martensen Wright PC can help you with the process, contact us at