IMI 0.3-0.45% of taxable value (urban), set by municipality.
Tax on rental income
Long-term: 25% flat for non-residents; short-term (AL) under the simplified regime only 35-50% of gross is taxable.
What holiday rentals earn
No sourced STR gross yield found.
Long-term rent yield
3.8-4.9 (GPG Q2 2026: national 4.29, Lisbon 3.76, Porto 3.96, Faro 4.48)% gross
Holiday-rental rules
Alojamento Local (AL) registration is mandatory; since Nov 2024 municipalities can freeze new AL licences in containment zones (Lisbon, Porto use this); condominiums can object with >50% of owners.