A family-member eligibility tree under Articles 99 and 100
Family reunification is not a generic ‘bring relatives’ programme. Portuguese law defines specific family categories — and students have a narrower list than most other residents.
The family-reunification question should start with relationship category, not documents.
Before calculating funds, booking accommodation or legalising certificates, ask: does this person fall inside Articles 99 or 100 for my residence category?
A strong birth certificate cannot make an ineligible relationship eligible.
Portugal family reunification who qualifies: General resident: the core Article 99 list
| Family member | General rule |
|---|---|
| Spouse | Included |
| Minor/dependent incapable children of the couple or either spouse | Included |
| Adopted minors | Included where the foreign adoption decision creates equivalent parent-child rights and is recognised in Portugal |
| Adult dependent child | Included if single and studying at an educational establishment in Portugal |
| First-degree direct ascendant (parent) of resident or spouse | Included if dependent on the resident/household |
| Minor sibling | Included if under the resident’s guardianship by a competent foreign decision recognised in Portugal |
De facto partner: Article 100 is a separate doorway
Family reunification can also be authorised for a de facto partner whose union with the resident is duly proven under the law.
Article 100 also covers the partner’s unmarried minor/dependent incapable children, including adopted children, where they are legally entrusted to that partner.
The relationship proof is different from a marriage certificate. Build the de facto-union evidence as its own legal file.
Students have a narrower family list
Article 99(3) is explicit: for a holder of residence for study, unpaid professional training or volunteering, the family list is limited to Article 99(1)(a)–(c):
spouse;
minor/dependent incapable children of the couple or either spouse;
qualifying adopted minors.
That means the ordinary adult-student-child, dependent-parent and minor-sibling categories are not available under the student-specific list in Article 99(3).
This is why Article 5 (students with spouse/children) was kept narrow rather than treating student residence like the general family-reunification regime.
Adult child: dependency + single + studying in Portugal
For the general resident route, the adult-child category is not simply ‘my child is 19’.
Article 99 requires the adult child to be:
dependent on the couple or one spouse;
single;
studying at an educational establishment in Portugal.
AIMA’s current family page mirrors this structure and asks for evidence of dependency and enrolment where adult children are claimed.
Parent: ‘dependent’ is a real condition
A parent of the resident or spouse can qualify as a first-degree direct ascendant if dependent on the resident/household.
AIMA guidance points to evidence of economic dependency and family relationship, including evidence such as transfers to the country of origin where relevant.
Do not assume age alone proves dependency.
Minor sibling: guardianship matters
A minor sibling is not eligible merely because the resident is helping them financially.
Article 99 requires the sibling to be under the resident’s guardianship under a competent decision of the country of origin, and that decision must be recognised in Portugal.
Minor child of only one parent
Where the child is a minor/dependent child of one spouse, Article 99(4) requires the other parent’s authorisation or a competent decision showing that the child was entrusted to the relevant parent.
Custody documentation can therefore be the decisive family-link document, not an optional extra.
Refugee minor: a special family definition
For an unaccompanied minor refugee, Article 99 creates special family categories including first-degree direct ascendants and, where those ascendants are absent/unlocatable, the legal guardian or another family member under the statutory framework.
That is a protection-specific rule and should not be copied into ordinary residence files.
Eligibility is only the first gate
Since the October 2025 reform, Article 98 also regulates when a resident can exercise family-reunification rights.
The general rule is now two years of valid legal residence, with a 15-month spouse/partner rule where there was at least 18 months’ prior cohabitation before the resident entered Portugal, plus statutory exceptions for dependent minors/incapable family members, the parent/partner of such a minor/incapable person, and certain highly qualified/investment/Blue Card residence categories.
Article 21 already analysed timing in the remote-worker context. This article’s main job is different: define who is inside the family list.
Family outside Portugal vs already in Portugal
AIMA maintains separate procedures depending on whether the family member is outside Portugal or already legally present in Portugal.
For family outside Portugal, the resident submits the family-reunification request; after approval, the family member proceeds through the residence-visa stage and then AIMA residence permit.
For a family member already in Portugal, legal entry and the applicable current Article 98 conditions matter.
The relationship-first decision tree
Identify your own residence category: general resident, student/trainee/volunteer, refugee/protection, highly qualified/Blue Card/investment, etc.
Classify the relative exactly: spouse, de facto partner, minor child, adult child, parent, sibling, adopted child.
Check the Article 99/100 conditions attached to that category — dependency, single status, study in Portugal, guardianship or custody where relevant.
Only after eligibility is clear, apply the current Article 98 timing rule/exception.
Then build civil-status, dependency, accommodation and means-of-subsistence evidence. Build the financial layer with the family-reunification proof-of-funds guide and the accommodation layer with the family-reunification housing-evidence guide only after the relationship category is legally inside the family definition. Once eligibility is established, separate follow-on guides cover whether a family-reunification spouse can work in Portugal and the first school and healthcare steps when moving children to Portugal.
The most common category errors
Assuming every parent can be reunited without proving dependency.
Treating an adult child as eligible without single status + dependency + Portuguese study.
Treating a minor sibling like a child without a guardianship decision.
Using the general family list for a student residence permit.
Confusing a boyfriend/girlfriend relationship with a legally provable de facto union.
Starting funds/housing calculations before establishing that the relative is legally inside the family definition.
Sources and further reading
Diário da República — Immigration Law Article 99/100 — Current statutory family categories and de facto-union route.
Diário da República — Current Article 98 family-reunification timing — Two-year/15-month rules and statutory exceptions since October 2025.
AIMA — Family reunification with family outside Portugal — Current family list and document examples, including dependency/custody evidence.
