The default assumption — and why it's worth questioning
Most English-speaking families arriving in Portugal assume state schools are off the table. The reasoning: classes are in Portuguese, the curriculum is unfamiliar, and the children won't cope. This is sometimes true. But it's also often an oversimplification, and the automatic move to international school can mean paying €12,000–€25,000 a year when a state school — or a well-chosen bilingual school — would serve the family better.
How the Portuguese state system is structured
Compulsory education runs from age 6 to 18. The structure is: 1.º Ciclo (years 1–4), 2.º Ciclo (years 5–6), 3.º Ciclo (years 7–9), and Ensino Secundário (years 10–12). Nursery (creche) and pre-school (jardim de infância) precede this. Pre-school for 3–5 year olds is free in state schools.
All instruction is in Portuguese. English starts as a compulsory subject in year 3 (age 8). Most state secondary schools offer a second foreign language from year 7.
When state school works well for expat children
The families who make it work well tend to share a few characteristics:
- They're committed to long-term residence in Portugal (5+ years), so language acquisition is a real asset, not a burden.
- The children are young — under 8 — when they arrive. At that age, children acquire languages without conscious effort and integrate naturally.
- The family has some Portuguese at home, or is actively learning it. The parents' language comfort matters for homework, parent evenings, and communication with teachers.
- They live in an area with a good local school. Quality varies significantly between schools. The Ranking das Escolas published annually gives external exam results by school.
When it's a bad fit
State school tends to work poorly for children arriving at secondary age (12+) with no Portuguese, for families on short-term assignments of 2–3 years, and for children with special educational needs — where the state system's support provision is inconsistent.
It's also challenging for families in areas with lower-performing schools, or where the school doesn't have the resources to support a non-Portuguese speaker during the transition period.
The bilingual middle ground
Portugal's bilingual public school programme (escolas com ensino bilingue) places more English-medium instruction into the standard curriculum from an early age. These schools follow the Portuguese national curriculum but teach some subjects in English. They're free, competitive on entry, and often have waiting lists — but they're an underused option that sits between "full Portuguese state" and "full international".
There are also semi-private colégios that are officially accredited by the state, charge moderate fees (€300–€700/month), and use a bilingual or internationally-oriented approach without the full international school price tag.
What international schools actually offer
True international schools — those offering IB, British A-levels, or American High School Diplomas — give curriculum continuity for children who may return to their home country or move on again. They teach in English, they're familiar territory, and they provide a community of fellow expat families. For a family that isn't sure how long they'll stay, this continuity has real value.
The costs, however, are substantial. In Lisbon, fees range from around €10,000 to €25,000 per year depending on school and year group. Porto is somewhat cheaper. Registration fees and capital levies can add another €2,000–€5,000 in the first year.
How to decide
The questions that matter: How long will you be in Portugal? How old are your children? How much Portuguese does the family have, or plan to develop? What's the likely next step after Portugal — staying in Europe, returning home, or moving again?
A family settling for the long term with young children often finds that the state or bilingual route leads to better Portuguese integration and saves a significant sum. A family on a three-year assignment with teenagers is better served by international continuity, even at a higher cost.
Use Skolvi to compare what's available in your area — filter by curriculum, language of instruction, and school type to see your actual options rather than the assumed ones.