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School comparison · Lisbon
Side-by-side comparison · Updated 2026-04-26 · Both schools in Lisbon
Quick answer
Both schools offer American and IB.
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Build family shortlist (free) →| Metric | Carlucci American International School of Lisbon (CAISL) | TASIS Portugal |
|---|---|---|
| Curriculum | American, IB | American, IB |
| Ages served | 3-18 | 3-18 |
| Language of instruction |
|---|
| English |
| English |
| Tuition USD | $12,000-$24,000 | $15,000-$25,000 |
|---|
| True annual cost? | $19,320 | $21,210 |
|---|
| Hidden fee %? | +7% | +6% |
|---|
| First-year cost? | $20,820 | $22,710 |
|---|
| WhereNext Value Score? | 73/100 | 69/100 |
|---|
| Cost percentile (city)? | 91th | 97th |
|---|
| Students | 755 | 880 |
|---|
| Nationalities | 62 | 60 |
|---|
| Avg class size | 20 | 24 |
|---|
| Admissions | Moderate | Moderate |
|---|
| Accreditations | MSA-CESS, IBO | MSA-CESS, IBO, CIS |
|---|
Highlighted cells indicate which school holds the more favourable value for arriving expat families on that dimension (e.g. lower tuition, smaller class size, higher Value Score, more open admissions). Some rows are neutral.
Full profile · Carlucci American International School of Lisbon (CAISL)
View the full Carlucci American International School of Lisbon (CAISL) school profile →
Full profile · TASIS Portugal
View the full TASIS Portugal school profile →
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True annual cost in Lisbon
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The School Fit Brief weights every dimension above against your family's specific needs — budget, learning support, curriculum preference, age band, family priorities — and produces a definitive recommendation with a 30-day action plan. $49 one-time.