Brazil dual citizenship has become an increasingly attractive option for people seeking stronger travel mobility, expanded rights, and deeper ties to one of Latin America’s most influential countries. Whether you’re a foreign national considering naturalization, the child of a Brazilian parent living abroad, or married to a Brazilian citizen, the rules on how Brazilian nationality interacts with a second nationality changed in an important way in 2023.
Therefore, Global Citizen Solutions regularly sees clients assume that the 2023 constitutional changes made dual citizenship “automatic” or removed the need to formally establish Brazilian nationality; neither is true. Nationality still has to be established through birth, descent, or naturalization; what changed is only what can cause you to lose it afterward.
This guide breaks down how to qualify for Brazilian dual citizenship, the law changes, tax obligations, and some of the benefits of a Brazilian passport.
Brazil Dual Citizenship Key Takeaways

Yes, Brazil allows dual citizenship, meaning you can be a Brazilian national and hold another nationality at the same time. There is no special “dual citizenship” status or separate application. You simply become Brazilian by birth, descent, or naturalization, while keeping your other nationality.
Before 2023, voluntarily acquiring another nationality could automatically result in the loss of Brazilian nationality. A constitutional amendment passed in 2023 removed this automatic penalty. This means that acquiring another nationality today does not, by itself, put your Brazilian nationality at risk.
In October 2023, Constitutional Amendment 131 (EC 131/2023) changed Article 12 of Brazil’s Federal Constitution and the rules on when a person can lose Brazilian nationality.
Before EC 131/2023: If a Brazilian voluntarily acquired another nationality, they could automatically lose their Brazilian nationality, although there were a few narrow exceptions.
After EC 131/2023: Simply acquiring another nationality no longer causes someone to automatically lose their Brazilian nationality. Brazilian nationality can now be lost only in two situations:
- A court cancels the person’s Brazilian naturalization because they used fraud during the naturalization process or committed an act against Brazil’s constitutional order; or
- The person expressly asks the competent Brazilian authority to give up their Brazilian nationality. This request cannot be approved if giving up Brazilian nationality would leave the person stateless, meaning they would have no nationality.
The amendment also states that someone who formally gives up their Brazilian nationality can later apply to reacquire their original Brazilian nationality. The Constitution allows this, but the detailed procedure for reacquiring nationality still requires implementing regulations. Anyone considering giving up Brazilian nationality should therefore seek individualized legal advice rather than relying only on a general explanation of the rules.
Citizenship by birth in Brazil
Under Article 12 of Brazil’s Constitution, anyone born in Brazil is considered a Brazilian national by birth. The main exception is for children born in Brazil whose parents are both serving a foreign government in an official capacity.
If a person born in Brazil later acquires another nationality, they can hold both nationalities without needing to submit a separate dual-citizenship application.
Children born abroad to a Brazilian parent
A child born outside Brazil can be a Brazilian national by birth if at least one parent was Brazilian when the child was born. There are two main ways to establish Brazilian nationality.
The most straightforward route is consular registration. The Brazilian parent can register the child’s birth with the Brazilian consulate or embassy responsible for the country where the child was born. This establishes the child as a Brazilian national by birth and results in a Brazilian consular birth certificate.
If the child’s birth was not registered at a Brazilian consulate, another route is available. The child can establish residence in Brazil and, after tuurning 18, formally opt for Brazilian nationality through the Federal Court. According to Brazil’s Federal Police, children under 18 who were born abroad to a Brazilian parent and were not registered with a Brazilian consulate may also be able to obtain a provisional birth registration in Brazil.
Citizenship by naturalization
Foreign nationals who legally live in Brazil can apply for Brazilian nationality through naturalization once they meet the relevant requirements. There is no naturalization route that completely removes the residency requirement. Every route requires some period of lawful residence in Brazil, although the required period varies depending on your circumstances.
- Ordinary naturalization: The standard route requires four years of uninterrupted legal residence in Brazil, along with civil capacity, basic Portuguese proficiency, an dno criminal conviction that would prevent naturalization
- Reduced to one year: The four-year period can be reduced to one year if you have a Brazilian child or spouse/partner and are not legally or de facto separated from them at the time of application. The one-year requirement can also apply if you have provided or can provide relevant services to Brazil, or if you are recognized for notable professional, scientific, or artistic ability.
- Portuguese-speaking nationals: Nationals of Portuguese-speaking countries can qualify after one year of residence, provided they also meet the good-moral-standing requirement.
- Stateless persons: Stateless individuals can qualify after two years of residence in Brazil.
- Extraordinary naturalization: This route is available after 15 years of uninterrupted residence in Brazil, provided the applicant has no criminal conviction. There are no other substantive naturalization conditions attached to this route.
Citizenship through marriage
Marriage to a Brazilian citizen can provide a pathway to Brazilian citizenship through naturalization, but it does not automatically grant Brazilian nationality. Being married to a Brazilian can, however, allow the required period of legal residence to be reduced to one year in qualifying cases.
Applicants must still meet the other naturalization requirements, including legal residence in Brazil, basic Portuguese proficiency, and proof of a stable marital relationship. The applicant must also not be legally or de facto separated from their Brazilian spouse or partner when applying.

While the exact steps depend on whether you qualify through descent, marriage, or naturalization, most applicants must submit a core set of documents and meet basic legal conditions.
These requirements help the Brazilian authorities verify identity, confirm eligibility, and ensure compliance with nationality laws.
- Valid passport: Used to confirm the applicant’s identity and nationality during the application process.
- Original birth certificate: Required to establish place of birth, parentage, and eligibility for citizenship through descent or naturalization.
- Police clearance certificates from Brazil and your home country: Brazil requires proof of a clean criminal record to ensure the applicant meets the character requirements for citizenship. These certificates must typically be recent and may need apostilles or consular legalization.
- Proof of legal residency: Applicants pursuing citizenship through naturalization must demonstrate continuous and lawful residence in Brazil, usually supported by residency permits or Federal Police records.
- CPF number from Receita Federal: A CPF (Cadastro de Pessoas Físicas) is the national taxpayer ID and is required for most administrative processes, including citizenship applications.
- Completed online application: Most naturalization requests are submitted through the Sistema Naturalizar-se platform, where applicants upload documents and track their case.
- Federal Police interview (for in-country applicants): The Polícia Federal often conducts an interview or biometric appointment to confirm your identity, review documents, and verify residency compliance.
- Full rights to live, work, and study in Brazil: As a Brazilian national, you can live anywhere in the country, work without needing a work visa, and enroll in public or private educational institutions on the same basis as other Brazilian citizens. This can be especially useful if you have Brazilian family, property, or long-term plans in the country.
- A more direct path to property ownership and business registration: Foreign nationals can already invest in and buy property in Brazil. However, citizenship removes visa-related paperwork and gives you the same legal standing as other Brazilian owners or business founders.
- The right to vote: Brazilian nationals can register to vote and stand in Brazilian elections. Voting is compulsory for citizens living in Brazil and optional for those living abroad.
- A Brazilian passport: Once your Brazilian nationality is established, you can apply for a Brazilian passport. It provides visa-free or visa-on-arrival access to 176 countries and ranks 49th on the Global Passport Index by Global Citizen Solutions, and gives you an additional travel document if the mobility benefits of your other nationality change in the future.
- Access to public healthcare and public universities: Brazilian citizens can use the public healthcare system, known as SUS, and attend public universities on the same terms as other Brazilian nationals. This can be an important consideration for families deciding where to live long-term.
- Mercosur mobility: As a full Mercosur member, Brazil gives its citizens simplified rights to live, work, and study in Argentina, Paraguay, and Uruguay. This can be useful for anyone considering greater mobility within the region.
Brazilian nationality and Brazilian tax residency are two separate things. Holding a Brazilian passport does not automatically make you a Brazilian tax resident or create a Brazilian tax obligation. What matters to Brazil’s tax authority, Receita Federal, is your tax residency status, not your nationality.
In general, you can be considered a Brazilian tax resident if you:
- Hold a permanent residence visa and enter Brazil. For example, an individual who obtains residence through the Brazil Investor Visa and establishes residence in Brazil can become a Brazilian tax resident once the applicable tax residency requirements are met.
- Hold a temporary visa and either take up local employment or stay in Brazil long enough to establish tax residency. This is commonly assessed as around 183 days, whether consecutive or not, within a 12-month period.
- Formally register a change of tax residency status with Receita Federal.
Once you become a Brazilian tax resident, Brazil generally taxes your worldwide income, rather than only income earned in Brazil.If you are a dual national but do not meet Brazil’s tax residency requirements, for example, because you live permanently abroad, you are generally taxed only on Brazilian-source income. This can include rental income from Brazilian property or returns from local investments.
Anyone who becomes a Brazilian tax resident or needs to open a bank account, buy property, or file tax returns in Brazil will need a CPF (Cadastro de Pessoas Físicas) number from the Receita Federal. The CPF is the identification number used for most financial and administrative activities in Brazil.
Tax treatment can vary depending on your visa category, time spent in Brazil, sources of income, and any tax treaty between Brazil and your other country of nationality.
How Can Global Citizen Solutions Help You?
Global Citizen Solutions is an advisory migration consultancy firm with years of experience delivering bespoke residence and citizenship by investment solutions for international families. With offices worldwide and an experienced, hands-on team, we have helped hundreds of clients worldwide acquire citizenship, residence visas, or homes while diversifying their portfolios with robust investments.
We guide you from start to finish, taking you beyond your citizenship or residency by investment application.