In today’s globalized world, the feeling of belonging to more than one country and establishing legal ties with multiple states has become a widespread phenomenon. The increase in international mobility, economic integrations, and the expansion of family structures across borders have led to a redefinition of the concept of citizenship. The status of an individual being recognized as a citizen of two different states simultaneously—meaning dual citizenship—holds a significant place in modern legal systems.
This status grants individuals the opportunity to benefit from the rights offered by both countries while simultaneously entailing responsibilities toward the laws of both states. Within the framework of sovereign rights, states determine the detailed regulations regarding who can attain this status and which conditions must be met. Today, for individuals, the ability to hold dual citizenship is regarded as more than just an identity document; it is a strategic tool offering a broad spectrum of advantages ranging from education and healthcare to freedom of travel and property rights. There are many ways to apply for dual citizenship, and these paths vary according to the domestic laws of each country.
Acquisition of Dual Citizenship by Birth
The acquisition of citizenship rights by birth is one of the most fundamental methods of obtaining nationality worldwide. This process is generally shaped by two primary legal principles. The first principle is based on the premise of being born within the territory of a specific country, regardless of the parents’ nationality (Jus Soli). Certain nations grant automatic citizenship to every infant born within their borders. In this system, the parental nationality is irrelevant; the determining factor is the geographic location where the birth occurs. Many states, particularly across North and South America, adopt this method to shape their demographic structures.
The second fundamental principle is based on the “Right of Blood” (Jus Sanguinis). Under this system, a child automatically inherits the citizenship of their mother or father, regardless of where in the world the birth takes place. If the parents hold different nationalities and the laws of both countries permit the transmission of citizenship through lineage, the child acquires the right to hold dual citizenship from the moment of birth. While some countries mandate specific timeframes for the formal notification of birth, others recognize the right to citizenship as being acquired directly. These rights are structured to allow the individual to carry both passports even after reaching the age of majority.
The Process of Obtaining Dual Citizenship Through Marriage
Marriage is among the most common methods utilized to acquire the citizenship of another country. However, this process does not proceed as automatically or as quickly as is often assumed. To prevent sham marriages, states implement very strict audits and mandatory waiting periods. To apply for dual citizenship through marriage, the union must first be officially registered in accordance with the laws of the relevant country.
Most countries require couples to prove that they have lived under the same roof for a specific duration before granting citizenship rights. During this process, candidates may be required to prove their proficiency in the host country’s language or pass examinations regarding the basic social rules of that nation. Furthermore, it is a primary priority that the applicant has a clean criminal record. Unless the person is forced to renounce their original nationality, they attain dual status upon completion. Some countries, rather than granting direct citizenship after marriage, first provide a permanent residence permit and allow for a citizenship application only after a certain number of years.
Dual Citizenship via Investment and Economic Contribution
Many states seeking to support economic development and attract foreign capital offer investment-based citizenship programs. These programs are based on granting citizenship rights to individuals who transfer a specific financial resource to the country or create employment. Investment methods include purchasing real estate, investing in government bonds, or establishing a company.
In the process of citizenship by investment Turkiye, proving that the financial resources were obtained through legal means is the most critical stage. Security investigations are conducted deeply for these applications. This method is often preferred by investors because it typically yields faster results compared to other routes. Usually, the applicant’s spouse and children can also benefit from the same rights. While this system facilitates doing business in a new market for the individual, it also contributes directly to the economy of the relevant country.
Citizenship Rights Through Long-Term Residency
Residing in a country legally for an extended period is considered the most significant indicator of integration into that society. This situation opens the door for foreign residents to apply for citizenship. The most important criterion in residency-based acquisition is that the person has lived in that country continuously for a specific number of years, usually ranging between five and ten years.
For those in certain jurisdictions, such as the United States, the transition from a green card to citizenship represents this journey of integration. During the residency period, the individual is expected to contribute to the social security system, pay taxes regularly, and live in harmony with local laws. Upon completing the required period, individuals must pass citizenship exams to prove their knowledge of the country’s history, culture, and form of government.
Dual Citizenship Through Ancestry
The principle of lineage refers to the granting of rights to new generations based on the citizenship ties of past family members. Countries that have experienced large migrations in the past implement this method to maintain ties with their descendants outside their borders. This category includes citizenship rights through the mother, father, or even grandparents. If a person can prove with official documents that their ancestors were citizens of a specific country, the right to demand that citizenship may arise. The greatest challenge in this method is collecting retrospective documents and proving that the lineage is uninterrupted.
Required Documents for Application
The application process requires meticulous documentation. Regardless of the type of application, certain basic documents must be prepared, legalized, and translated by sworn translators:
- Valid passport and birth certificate.
- International standard biometric photographs.
- Clean criminal record (from both the home country and country of residence).
- Health report from an official medical board.
- Marriage certificate (if applicable).
- Proof of income (pay slips, bank statements, or title deeds).
- Official residency documents.
- Receipts for application fees.
What are the Requirements for Dual Citizenship?
While every state dictates its own legal framework regarding nationality, several common requirements serve as a global standard for applicants. To successfully navigate the process, candidates must typically meet the following criteria:
- Legal Age and Capacity: The applicant must be of legal age and possess the full legal capacity to make this decision of their own free will.
- Loyalty and Security: A critical condition is the pledge of allegiance to the constitutional order of the granting state, ensuring the applicant poses no threat to national security.
- Economic Self-Sufficiency: It is generally expected that the applicant is financially stable and can support themselves without becoming a burden on the state’s social welfare system.
- Language Proficiency: Demonstrating a functional command of the local language is an indispensable rule for most countries allowed dual citizenship, as it is seen as a key to social integration.
- Legal Compatibility: The applicant’s current country of origin must also permit this status. Some countries that don’t allow dual citizenship may create significant legal barriers or require the renunciation of the original nationality.
Dual Citizenship Process and Legislation in Turkiye
The Republic of Turkiye possesses a flexible legal framework that allows its citizens to acquire the nationality of another state without losing their original status. According to Turkish nationality law, a Turkish citizen who voluntarily acquires another citizenship may retain their Turkish nationality, provided they complete the necessary notification procedures. The primary legal basis for this process is the Turkish Citizenship Law No. 5901.
Turkish citizens who acquire another nationality are legally obligated to report their status to the relevant population directorates or foreign representative offices. During the review of an application for those who hold dual citizenship, the authorities evaluate whether the individual poses any threat to national security or public order. Once the notification is processed, an official annotation is added to the person’s civil registry as “possessing multiple nationalities.” Turkiye recognizes multiple nationalities as a fundamental right and ensures that these individuals’ rights within the country remain protected. Furthermore, those who choose to renounce their Turkish citizenship to acquire another nationality may still benefit from special statuses, such as the “Blue Card” (Mavi Kart), ensuring no loss of inherent rights.
Benefits of Dual Citizenship
Possessing multiple nationalities provides an individual with extensive maneuverability in both personal and professional spheres. The primary benefits of dual citizenship can be summarized as follows:
- Expanded Travel Freedom: The most tangible benefit is the ability to leverage the visa exemptions of two different passports simultaneously. One can enter a country visa-free using one passport, even if the other requires a rigorous application process.
- Work and Residency Rights: Individuals can legally seek employment, establish companies, and own real estate in both countries without the need for additional work or residence permits.
- Education and Scholarship Opportunities: Especially for those holding citizenship in EU member states, the ability to study at universities as a “domestic student” allows for significantly lower tuition fees and access to local scholarship programs.
- Social Security and Healthcare Services: Dual nationals can fully benefit from the public health services, pension schemes, and social assistance programs offered by both sovereign states.
- Political Participation: By holding the right to vote and stand for office in both countries, individuals can play an active role in the governance and democratic processes of both societies.
Disadvantages of Dual Citizenship
While this status offers significant opportunities, it also entails complex legal and financial obligations. The potential drawbacks include:
- Double Taxation Risk: Certain countries accept dual citizenship but enforce tax laws based on nationality rather than residence (e.g., the USA). This may result in the individual being liable for taxes on their global income in both jurisdictions.
- Compulsory Military Service: Unless a specific bilateral agreement exists between the two nations, an individual may be required to perform mandatory military service in both countries.
- Career Restrictions: In strategic sectors such as intelligence, defense, or high-level government bureaucracy, a “single citizenship” requirement may be enforced, potentially limiting specific career advancements.
- Security and Diplomatic Complexity: In the event of political or military tension between the two countries, dual citizens may face loyalty scrutiny or experience complications regarding diplomatic protection and consular assistance.
Countries Allowed Dual Citizenship
To remain competitive in the global arena and attract a qualified population, many nations grant approval for a second nationality. Some of the countries that maintain a flexible approach in this regard include:
- European Countries: Nations such as France, Italy, Portugal, Spain, and Ireland allow dual status. Furthermore, with its recent legislative reforms, Germany now permits dual citizenship under specific conditions such as ancestry, residency, or investment.
- North America: Canada and the United States primarily grant citizenship based on the principle of jus soli (right of soil) and generally do not interfere with individuals maintaining their prior citizenships.
- Oceania and Latin America: Australia and New Zealand support this status due to their immigrant-oriented systems. Similarly, countries like Brazil, Argentina, and Mexico recognize dual citizenship as a fundamental right.
Countries That Don’t Allow Dual Citizenship
Some states view the bond of citizenship as an indivisible allegiance and consider a person’s loyalty to another country as a legal barrier. Examples of these countries include:
- Asian Countries: China, Japan, and India enforce some of the world’s strictest regulations. An individual acquiring the citizenship of these countries is typically required to renounce their former nationality.
- European Countries with Restricted Permission: Austria and the Netherlands are generally opposed to dual citizenship in principle; however, they may grant limited exceptions in extraordinary cases such as marriage or exceptional professional achievements.
- Middle Eastern Countries: Countries like Saudi Arabia and the United Arab Emirates maintain highly exclusive citizenship systems and do not legally recognize a second allegiance.
The process to hold dual citizenship is a long-term and meticulous planning endeavor that must be evaluated as a whole, considering both its advantages and disadvantages. Since national laws and international treaties are updated periodically, it is a critical step to verify the current legislation of the relevant countries through experts before you apply for dual citizenship. Doing so is essential to prevent potential loss of rights and to ensure the legal security of the process.
As the Istanbul Law Office family, we are always by your side with our professional consultancy services for all your procedures regarding Citizenship Law.