Direct answer
Keep the Portuguese marriage record and ask the institution that needs evidence which certificate format, authentication and translation it accepts. Portugal offers a marriage certificate on paper or electronically. It also offers an international multilingual civil-record certificate, issued on paper and requested in person or by post.
The multilingual form can reduce a language problem, but it does not decide recognition or remove every process-specific authentication requirement. The US state, federal agency, UK authority or other institution considering the record sets its own evidence rules.
Choose the record for the process
| Portuguese record route | What the official source establishes | Do not infer |
|---|---|---|
| Electronic marriage certificate | Portugal can issue the marriage certificate electronically. | That every foreign institution accepts an online code or printout. |
| Paper marriage certificate | Portugal can issue a paper certificate. | That paper alone removes authentication or translation requirements. |
| International multilingual certificate | A paper international model exists for presentation outside Portugal and includes several languages. | That it is automatically accepted by every US or UK process. |
Gov.pt says any person can request a marriage certificate, subject to limited exceptions. The international model may be requested for oneself or another person, but it is available only on paper and through the stated in-person or postal channels. Ask the Civil Registry which identifying details and delivery method apply to the record before relying on a deadline.
Order for a named use. First identify the institution and process that needs the evidence. Then ask whether it accepts the electronic certificate, needs paper, accepts the international form, or specifies an authentication or translation.
United States: there is no single state-and-federal answer
The US State Department says a marriage performed abroad is valid in the country where it took place when it follows local law, while recognition in another country depends on that country’s law. For a US recognition question it directs readers to the Attorney General’s office in the state where they live for information about required documentation.
A federal immigration, benefits or tax process can publish its own evidence standard. A state process can ask a different question. Do not order an apostille or translation merely because a destination-wedding checklist says it is always required; tie the step to the current instructions of the actual process.
United Kingdom: keep the Portuguese certificate
GOV.UK says a marriage abroad is registered in the country where it occurred. A couple cannot get a UK marriage certificate for a marriage that happened abroad. The general GOV.UK test says a foreign marriage is recognised in the UK if it was lawful where it took place and would be allowed under UK law.
Home Office immigration guidance adds its own evidence wording: overseas marriage evidence must be a reasonable equivalent to UK evidence and valid under the law in force in the relevant country. That is a process boundary, not a promise that one Portuguese format works for every UK institution.
No UK replacement certificate Keep the Portuguese record and follow the requesting institution’s evidence instructions.
A record-care workflow
- Confirm that the Civil Registry process has created the marriage record.
- Keep the original access details and any paper certificate securely.
- Name the exact US or UK process that needs evidence.
- Ask that process which Portuguese format it accepts and whether it specifies authentication or translation.
- Order only the service needed for that use and retain the source instructions with the record.
This Guide does not say that an apostille, certified translation, registration or international certificate is always required. It also does not determine an individual recognition outcome.
For the legal process that creates the record, see Portugal’s Civil Registry Guide. For the country overview, see planning a wedding in Portugal. If guests are travelling, use Portugal guest-entry checks for US and UK travellers. You can also start a private planning checklist.
Sources and review
Reviewed 22 August 2026 by the Plan a Wedding Editorial Team. Sources: gov.pt marriage certificate service, gov.pt international certificate service, US State Department, Marriage, GOV.UK marriage-certificate guidance, and Home Office partner guidance. This is general information, not legal advice. Read our editorial policy or use our contact page to report a correction.