• Argentina’s announced framework includes a spouse and children aged up to 24, with additional contributions based on age
• Türkiye allows a spouse and children under 18 to apply through the same qualifying investment
• Antigua and Barbuda, Dominica, Grenada, and St. Lucia offer broader family inclusion, with provisions for certain adult children and older relatives
• Naoero permits applications to include spouses, dependent children, parents, and siblings
• Factors such as financial dependency, marital status, education, and disability can determine whether adult relatives qualify as part of a program

Understanding Family Eligibility

Most citizenship by investment programs recognize a legally married spouse and dependent children. The differences become more pronounced, however, when an application includes adult children, parents, grandparents, or siblings.

Three factors are particularly relevant:

• Age: Some programs use 18 as the standard cutoff for children, while others extend eligibility into the twenties or beyond.
• Dependency: Adult children and older relatives may need to demonstrate that the principal applicant provides financial support. University enrollment, marital status, and disability can also affect eligibility.
• Family relationship: Grandparents, siblings, and unmarried partners are not recognized by every jurisdiction. Where they are permitted, additional contributions and supporting documents may apply.

Eric Major, Chairman and CEO of Latitude Group, offers this perspective:

“We often see families with very different circumstances applying for citizenship. A young couple with children has a very different eligibility profile from an investor supporting university-age children and elderly parents. Understanding those differences early allows us to identify the programs that genuinely accommodate the family.”

Argentina and Türkiye: Two Distinct Approaches

Argentina: A New Citizenship Opportunity

Argentina formally announced its Citizenship by Investment Program on October 2, 2026, with applications expected to open very soon, during the fourth quarter of 2026. The proposed framework includes a non-refundable Treasury contribution of USD 350,000 or an investment of USD 800,000 in a specially created sovereign bond.

The announced family contribution structure is particularly notable:

• Spouse: Additional contribution of USD 100,000.
• Children under 18: Additional contribution of USD 25,000 per child.
• Children aged 18–24 inclusive: Additional contribution of USD 100,000 per child, provided they have never married and have no children.

For example, a principal applicant, spouse, and two children under 18 would have an expected Treasury contribution of USD 500,000. Adult children within this age range are not required to demonstrate financial dependency under the announced framework, which may be noteworthy for families with older children who are already entering university or beginning their careers.

Parents and grandparents have not been announced as eligible dependents and may need to apply separately. Argentina’s proposed approach to age-based provisions offers a different model from Caribbean programs, which typically rely more heavily on financial dependency.

There is, however, an important qualification: the final implementing regulations and application procedures remain subject to confirmation by the Argentine authorities. The announced figures and eligibility provisions should be treated accordingly, with potential room for change.

Eric Major offered his impression following the official announcement of the program in October:

“Argentina has the potential to become one of the most significant new entrants to the global investment migration market in many years. It is a G20 economy with extraordinary natural resources, a highly educated population, a globally recognized culture, and an internationally respected passport.”

Türkiye: Citizenship for Spouses and Children Under 18

Türkiye’s program has a more defined immediate-family structure. Investors can include their legally recognized spouse and children under 18 in their citizenship application:

• Spouse
• Biological and legally adopted children under 18, subject to the applicable requirements

As we can see, adult children, parents and grandparents are not covered by the standard family inclusion provisions.

The qualifying investment is not multiplied according to the number of eligible dependents. For example, an investor purchasing qualifying real estate for USD 400,000 can include their spouse and children under 18 without making a separate property investment for each person.

Other qualifying routes include a USD 500,000 bank deposit, government bond, or qualifying fund investment, as well as fixed capital investment and job creation. The applicable investment must be maintained for at least three years.

For families with younger children, Türkiye offers a straightforward application structure. However, parents with university-age children or relatives they wish to include from older generations will need to examine alternative programs.

Caribbean Citizenship by Investment: Four Programs Compared

The Caribbean remains an established center of citizenship by investment, with Antigua and Barbuda, Dominica, Grenada, and St. Lucia offering different approaches to dependent family members.

Antigua and Barbuda: Including Multiple Generations

The Antigua and Barbuda program has one of the most family-friendly options among the programs on our list. Applications can include:

• A spouse
• Financially dependent children aged 0–30
• Adult children with physical or mental disabilities who live with and are fully supported by the principal applicant
• Dependent parents and grandparents aged 55 or older
• Unmarried siblings of the principal applicant or spouse

The program also provides for certain future family additions, including a future spouse of the principal applicant, and spouses or children of qualifying dependent children, subject to additional requirements and fees.

The inclusion of grandparents and siblings makes Antigua and Barbuda particularly relevant for investors with family responsibilities extending beyond their immediate household.

The National Development Fund contribution starts at USD 230,000 for a family of up to four, while approved real estate is another qualifying route, starting at USD 300,000. For larger families of six people or more, the University of the West Indies Fund contribution of USD 260,000 might be the most attractive option.

Dominica: A Defined Route for Adult Children and Older Relatives

Dominica’s well-established program, which launched in 1993, has specific provisions for adult children and dependent older relatives, including:

• A spouse
• Children under 18
• Children aged 18–30 attending a recognized institution of higher learning, and fully supported by the principal applicant or spouse
• Adult children with physical or mental disabilities who are fully supported
• Dependent parents and grandparents over 65

These provisions could be most relatable to families supporting children through university, or providing financial assistance to older relatives.

Dominica’s Economic Diversification Fund contribution starts at USD 200,000 for a single applicant, or USD 250,000 for a principal applicant and up to three qualifying dependents. There’s also an approved real estate route with a minimum value of USD 200,000 where additional fees may apply.

Grenada: Adult Siblings, Parents, and Grandparents

The Grenada program has provisions for several family categories, including adult siblings, with zero physical presence requirements, making it worth considering for applicants with wider family responsibilities. The family members which the program includes are:

• A spouse
• Dependent children under 30
• Dependent parents and grandparents
• Unmarried siblings aged 18 or older who have no children

All categories remain subject to the applicable dependency, documentation, and due diligence requirements. Additional contributions may apply when parents or grandparents are aged 55 or younger, and when siblings are included.

Grenada’s National Transformation Fund contribution starts at USD 235,000. Additional contributions may apply depending on the number and category of dependents included. An approved real estate investment is also available, starting at USD 270,000.

An important consideration for families is that Grenada also has a US E-2 Investor Visa Treaty. This means that its citizenship can provide a basis for an E-2 application, subject to US requirements. However, investors who acquire Grenadian nationality through financial investment must also meet the applicable three-year domicile requirement for first-time E-2 applicants.

St. Lucia: Flexibility for Dependent Children

St. Lucia recognizes a relatively broad range of dependents, and its program includes both adult children and parents:

• Spouse
• Children aged 21 or younger
• Children aged 22–30 who are fully supported by the principal applicant
• Children of any age with a qualifying physical or mental disability who are fully supported by the principal applicant
• Parents aged over 55 who are fully supported by the principal applicant
• Qualifying parents of any age with a physical or mental disability who are fully supported by the principal applicant
• Unmarried siblings under 18 who have the consent of a parent or guardian

Children aged 22–30 and qualifying parents must be fully supported by the principal applicant. Siblings must be unmarried, under 18, and have the consent of a parent or guardian.

The National Economic Fund contribution starts at USD 240,000 for a principal applicant and up to three qualifying dependents. Other routes include approved real estate, enterprise investment, and government bonds.

For investors whose children remain financially supported into adulthood, St. Lucia’s recognition of fully supported children up to age 30 is particularly relevant.

Pacific Citizenship by Investment

Branching out past the Caribbean, there are also newly established programs available to investors who may be looking further afield.

Naoero: Spouses, Children, Parents, and Siblings

In the South Pacific Ocean lies the tiny island nation of Naoero, formerly known internationally as Nauru, which offers citizenship through its Economic and Climate Resilience Citizenship Program.

The program’s family provisions are particularly broad, recognizing several categories of relatives. It includes:

• Spouse
• Dependent children
• Parents
• Siblings of the principal applicant or their spouse

The precise requirements and additional contributions depend on the family member’s circumstances. For example, a contribution of USD 15,000 applies for each sibling, regardless of age, while each additional dependent aged 16 or older has an extra USD 2,000 contribution.

The standard contribution for a single applicant is USD 115,000. A reduced contribution of USD 90,000 is available for qualifying applications submitted by December 31, 2026, unless the discount is further extended.

Naoero is an interesting option for applicants whose family structure includes siblings or older relatives. There is also no physical residency requirement as part of the program.

Preparing a Family Citizenship Application

Family applications can be more demanding than a solo venture, with potentially multiple family members and their documentation needed to be accumulated.

While the below list is by no means exhaustive, common documents with applications include:

• Birth and marriage certificates
• Adoption or guardianship documents
• Evidence of financial support for adult children and older relatives
• University enrollment records where education is a qualifying condition
• Medical documentation where disability provisions apply
• Passports, police certificates and other due diligence records

Depending on the jurisdiction, documents may need to be translated, certified or legalized, which can lead to additional fees.

Eric Major comments:

“The documentation behind a family application deserves careful attention. Establishing a parent-child relationship is usually straightforward, but demonstrating financial dependency or meeting the requirements for an adult child can involve a more detailed review. Preparing that evidence early makes a real difference to the application process.”

Families should also consider age thresholds when deciding when to apply for programs. For example, a child approaching 18 or 30 may move into a different eligibility category depending on the program.

Speak to Latitude About Family Citizenship Planning

From Argentina’s emerging program to the established Caribbean options and newer opportunities in Africa and the Pacific, Latitude advises investors on citizenship routes that reflect their family circumstances.

Our team can help assess eligibility, compare qualifying investments and prepare the documentation required for a family application.

Contact Latitude for a complimentary consultation.

Frequently Asked Questions

Can my spouse and children obtain citizenship through one investment?

Yes. Many programs allow a spouse and qualifying children to be included in the principal applicant’s application. Türkiye, for example, permits spouses and children under 18 to benefit from the same qualifying investment.

Which citizenship by investment programs allow parents to be included?

Antigua and Barbuda, Dominica, Grenada, St. Lucia, and Naoero all have provisions for qualifying parents. Age and financial dependency requirements vary.

Can grandparents be included in a citizenship by investment application?

Yes. Antigua and Barbuda, Dominica, Grenada, and Naoero offer provisions for grandparents, subject to their respective requirements.

Can adult children qualify for citizenship by investment?

Yes. Dominica, Grenada, St. Lucia and Antigua and Barbuda recognize qualifying adult children. Argentina’s announced framework also provides for certain children aged 18–24, subject to marital and parental status conditions.

Can siblings be included in applications?

Antigua and Barbuda, Grenada, and Naoero have provisions for qualifying siblings. St. Lucia also permits siblings under 18.

Does adding family members increase the investment amount?

This depends on the program. Some use a shared qualifying investment, while others charge additional contributions for each dependent or family category. Government, processing, and due diligence fees may also apply.

Can family members be added after citizenship has been granted?

Some jurisdictions allow eligible relatives to apply after the principal applicant has obtained citizenship. The rules depend on the relationship, timing, and relevant program provisions.