Answer first. If you are a third-country national applying to AIMA as the family member of an EU national, AIMA published a checklist on 14 August 2026 telling you to confirm your documents and their validity before you lodge. The two headline rules: a marriage certificate must have been issued within the last six months (or you provide a valid access code to the electronic certificate), and applications involving minors must prove the family link, the legal representation of the minor, and the exercise of parental responsibilities. The documents vary by the family link you invoke and your specific situation. The stakes are high because AIMA states that a missing or expired essential document can stop the application from being received at all — not just delayed, but refused at intake.
What AIMA Actually Requires — and Why Validity Is the Trap
AIMA's 14 August 2026 notice makes one point above all others: the documents "variam de acordo com o vinculo familiar invocado e com a situacao especifica do requerente" — they vary according to the family link invoked and the applicant's specific situation. There is no single universal list for "family member of an EU national." A non-EU spouse, a minor child, a dependent adult child, and a dependent parent each present a different evidentiary package. What unites them is that AIMA is checking one thing above eligibility: that the family relationship you rely on genuinely still exists at the moment you apply. That is why the notice fixates on the recency and validity of the documents, not just their existence.
This is the trap applicants fall into. Many arrive with a marriage certificate or birth certificate they have held for years, assuming that a genuine document is a sufficient document. AIMA's requirement is stricter: the document must be current enough to evidence a live relationship. A marriage certificate from three years ago proves you married three years ago; it does not, in AIMA's framing, prove you are married today, which is why the six-month freshness rule exists. The single most valuable thing you can do before an AIMA appointment as an EU family member is to audit each document against its validity rule — not whether you have it, but whether it is recent enough to be accepted.
Marriage Certificate: The Six-Month Freshness Rule
Where you prove the family link through marriage, AIMA requires a marriage certificate that meets two conditions, quoted directly from the notice: "emitida ha seis meses ou menos desde a data do atendimento" (issued six months or less before the date of the appointment) and "devidamente assinada e timbrada" (duly signed and stamped). The certificate's recency is doing the legal work here — AIMA wrote that this document "e essencial para confirmar que o vinculo familiar invocado no pedido se mantem," it is essential to confirm that the family link invoked in the application still holds. A stale certificate, however authentic, does not satisfy that test.
AIMA offers a cleaner alternative to chasing a fresh paper certificate: "deve ser disponibilizado, preferencialmente, um codigo de acesso valido a certidao" — preferably, provide a valid access code to the certificate. For marriages registered in Portugal, the online civil-registry access code lets AIMA pull the live certificate directly, which sidesteps the six-month clock entirely because the accessed record is always current. If your marriage is registered abroad, you will generally need a recently issued certificate, and depending on the country of issue it may require an apostille or legalisation and a certified Portuguese translation. Order that fresh certificate close to your appointment date, not months ahead, so it is still inside the six-month window when you attend. The consequence of getting this wrong is explicit in the notice: a missing up-to-date certificate or invalid access code "pode impedir a rececao do pedido," it can prevent the application from being received.
Applications Involving Minors: Three Things You Must Prove
When the application concerns a minor, AIMA raises the evidentiary bar and lists three distinct things you must document: "vinculo familiar" (the family link), "a representacao legal do menor" (the legal representation of the minor), and "a atribuicao e o exercicio das responsabilidades parentais, quando aplicavel" (the attribution and exercise of parental responsibilities, where applicable). These are three separate questions. The first asks who the child is to the EU national; the second asks who is legally entitled to act for the child; the third asks who actually holds and exercises parental authority. A birth certificate alone answers the first but not always the second and third, which is where applications for children frequently stumble.
AIMA gives concrete examples of the documents that satisfy these requirements "consoante a situacao" — depending on the situation. A valid birth certificate covers the family link. A "documento comprovativo da representacao legal do menor" evidences who legally represents the child. And critically, where parental responsibility is in question — separated parents, sole custody, a child travelling with one parent — AIMA may require "decisao de autoridade competente do pais de origem que comprove a atribuicao e o exercicio das responsabilidades parentais," a decision from the competent authority in the country of origin confirming who holds and exercises parental responsibilities. That court or authority decision is the document most applicants overlook, and it is the hardest to obtain at short notice, so identify early whether your situation requires it. For the wider picture of how children and dependants fit into AIMA family applications, see our complete family reunification guide.
The Birth-Certificate Age Rule: 16 Is the Cutoff
AIMA set out a precise validity rule for birth certificates that turns on the child's age, and it catches people off guard. Quoting the notice: a birth certificate "ate aos 16 anos, nao esta sujeita a prazo de caducidade" — up to age 16, it is not subject to any expiry period. But "a partir dos 16 anos, tem validade de 12 meses apos a emissao" — from age 16, it is valid for 12 months after issue. So the same document is treated differently depending on how old the child is at the time of the appointment. For a child of ten, a birth certificate issued years ago is fine. For a sixteen- or seventeen-year-old, the certificate must have been issued within the previous twelve months, or AIMA will treat it as expired.
The practical consequence is that families with teenagers approaching or past their sixteenth birthday must re-order the birth certificate before applying, exactly as they would for the marriage certificate. This is easy to miss because a birth certificate feels like a permanent record — the birth, after all, does not change. But AIMA's validity rule is not about the fact of birth; it is about the currency of the civil-registry record, which can be updated (name changes, parental status, corrections) and which AIMA wants to see in a recent extract for older minors. Check the child's age against the appointment date, and if they are 16 or over, confirm the certificate's issue date falls within the last twelve months.
Why an Out-of-Date Document Gets Your Application Refused at Intake
The reason AIMA published this notice at all is that document problems are not treated as fixable afterthoughts — they can stop the application dead at the counter. AIMA wrote that the absence of an up-to-date certificate or of a valid access code "pode impedir a rececao do pedido, por falta de um documento essencial a sua instrucao" — it can prevent the reception of the application, for lack of a document essential to instructing the file. In Portuguese administrative terms, "instrucao" is the assembly of the file that a decision is built on; a document essential to instrucao is one without which the file cannot even be opened. Miss it, and the application is not received.
That distinction — refused at intake versus refused on the merits — matters enormously for your timeline. A merits refusal comes after processing and can be appealed. An intake refusal means you never got into the queue: you lose the appointment, you re-book (which, given AIMA scheduling pressure, can cost weeks or months), and you attend again with the corrected document. Given how hard AIMA appointments are to secure, treating the document audit as the single most important pre-appointment task is not caution, it is efficiency. Bring the fresh marriage certificate or valid access code, the age-appropriate birth certificate, and, where relevant, the parental-responsibility decision — and bring the originals plus copies. The whole point of AIMA's advance notice is to let you fix validity problems before the appointment rather than discover them at the counter.
This Is the EU Free-Movement Track, Not General Family Reunification
It is important to place this checklist in the right legal lane. Family members of EU nationals apply under the European free-movement regime (in Portugal, Lei n.º 37/2006), which is distinct from the general family-reunification route under the Foreigners Law that governs the non-EU sponsor bringing relatives. The two tracks differ in eligibility, in the documents required, and in the conditions attached — for instance, the general reunification route carries the two-year prior-residence rule for the sponsor, whereas the EU free-movement route is built around the EU national's exercise of treaty rights. Applying on the wrong basis, or bringing the wrong document set, is a common and costly error.
If you are the non-EU spouse or child of an EU citizen living in Portugal, this AIMA checklist is your document list — not the Foreigners Law reunification list. If instead you are a third-country national sponsoring relatives, the general reunification rules apply and our guidance on the online family-reunification submission and the income requirements for family reunification is the right starting point. A frequent point of friction for EU-family applicants is the social-security-number step; our note on the NISS / Article 15 catch-22 covers a related snag in this same track. Identify which regime you fall under before you gather documents, because a perfect Foreigners Law file is the wrong file for an EU free-movement application, and vice versa.
Frequently Asked Questions
My marriage certificate is authentic but two years old. Is that a problem?
Yes, for this purpose. AIMA requires the marriage certificate to have been issued within six months of the appointment date, regardless of how long you have been married. An authentic but older certificate does not meet the recency requirement, because AIMA uses the certificate's freshness to confirm the marriage is still current. Order a new certificate close to your appointment, or provide a valid access code to the electronic certificate if your marriage is registered in Portugal.
Can I use an online access code instead of a paper certificate?
AIMA says a valid access code is the preferred option. For civil records held in the Portuguese registry, the access code lets AIMA retrieve the live certificate, which is always current and avoids the six-month clock. For records held abroad, you will usually need a recently issued paper certificate, potentially apostilled or legalised and translated into Portuguese. Where a Portuguese access code is available, it is the cleaner route.
My child is 16. Does anything change compared with a younger child?
Yes. Below 16, a birth certificate is accepted without any expiry period. From 16, the birth certificate is only valid for 12 months after issue, so you must present one issued within the last year. If your teenager's certificate is older than a year, re-order it before the appointment. The rule turns on the child's age at the time of the appointment, so check the date carefully for children near the sixteenth-birthday threshold.
When would I need a parental-responsibility decision from my home country?
AIMA asks for a decision from the competent authority of the country of origin proving the attribution and exercise of parental responsibilities "where applicable" — typically where parents are separated or divorced, where one parent has sole custody, or where the child is applying with only one parent. If both parents are together and jointly hold parental responsibility, a birth certificate may suffice. Where custody or representation could be questioned, obtain the authority's decision in advance, as it is the slowest document to source.
What if AIMA refuses to receive my application over a document?
An intake refusal means the file was never opened, so the fix is to correct the document and re-book rather than to appeal a decision. Ask AIMA to identify precisely which document or validity was the problem, obtain the corrected version (a fresh certificate, a valid access code, or the missing parental-responsibility decision), and secure a new appointment. Because re-booking can be slow, the efficient path is to prevent the intake refusal by auditing every document and its validity against this checklist before you attend.