Carlucci American International School of Lisbon (CAISL)
International School in Lisbon
Quick answer
Carlucci American International School of Lisbon (CAISL) is the only school in Portugal assisted by the U.S. Department of State's Office of Overseas Schools, serving 755 PreK-12 students from 50+ nationalities. CAISL offers an American High School Diploma and IB Diploma pathway, accredited by MSA-CESS and IBO. Annual tuition runs $12,000-$24,000 USD (true cost ~$19,320, +7%). Best suited to American-curriculum families wanting State-Department affiliation in a smaller, family-feel community.
Key facts
- Curriculum: American, IB taught at Carlucci American International School of Lisbon (CAISL).
- Tuition: $12,000–$24,000/yr published in EUR, US$ equivalent.
- Avg class size: 20 (max 3) Lisbon international school · 755 students total.
- 62 nationalities top: American and Portuguese.
- Ages: 3-18 school day starts at 8:20.
- Accreditations: MSA-CESS, IBO verified.
755
62 (American and Portuguese)
20 avg / 3 max
Rolling
MSA-CESS, IBO
About Carlucci American International School of Lisbon (CAISL)
Carlucci American International School of Lisbon is a student-centered educational community in which the school challenges itself and each other to do its best and to makes positive contributions to our diverse and ever-changing world.
| Item | Amount |
|---|---|
| Annual tuition (USD) | $12,000 – $24,000 |
| Annual tuition (EUR) | 12128-23532 |
| Fee year | 2025-2026 |
| True annual cost (with hidden fees)how we calculate | $19,320(+7%) |
| First-year total (with registration + deposit) | $20,820 |
| Cost position in Lisbon | 91th percentile(premium tier) |
Hidden costs & fee notes
US-accredited. AP and IB Diploma. Known for college counseling. Capital fee on entry.
American, IB
IB Diploma
The average score in 2025 was 34.3 and in 2024 was 36.56. More information can be found here: https://www.caislisbon.org/admissions/welcome/evidence-of-academic-success
Portuguese, French and Spanish
The Learning Support Program (LSP) at CAISL is dedicated to fostering the academic, social and emotional development of all students by providing tailored support to those with mild to moderate needs. The goal is to ensure that every student admitted to CAISL, regardless of their individual challenges, can thrive within the regular classroom setting and achieve success in meeting academic requirements. At CAISL, the school Learning Support teachers have specialized qualifications and expertise tailored to address diverse students' needs and to enhance student access to the standard educational curriculum. THE LEARNING SUPPORT TEAM IS COMMITTED TO SUPPORTING STUDENTS IN A TIERED AND COLLABORATIVE APPROACH, BY: • Providing small group instruction and personalized interventions to address specific learning needs. • Regularly monitoring student progress to track growth and adjust support strategies accordingly. • Implementing formal accommodations to ensure equitable access to the curriculum and learning materials. • Developing executive functioning and literacy skills crucial for academic success. • Collaborating closely with teachers, parents, and external specialists to create Individual Educational Plans (IEPs) tailored to each student's unique needs. • Upholding a commitment to inclusivity by providing necessary resources and support while fostering a sense of belonging and empowerment among all learners.
Learning Support
English Support
8:20 – 15:45
Yes
We have a vegetarian option available every day.
Recommended neighborhoods
Sintra, Cascais, Estoril, Queluz
Is Carlucci American International School of Lisbon (CAISL) right for your family?
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At a Glance
Fee Position in Lisbon
Mid-rangeSchool Profile
Class Size
Student Diversity
Very diverse
Common: American and Portuguese
Estimated Real Cost
Tuition + registration, transport, uniform, exams
US-accredited. AP and IB Diploma. Known for college counseling. Capital fee on entry.
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