Renting in Portugal: Contracts, Deposits and Landlord Rules (2026)

Portuguese rental law is tenant-protective on paper — open-ended contracts, rent-update caps, eviction protections — but the market reality in Lisbon, Porto and the Algarve is landlord-favourable: demand exceeds stock, and newcomers without local paperwork face stiff screening. Knowing the mechanics changes your negotiating position.

Contract types and money

The standard residential contract (arrendamento habitacional) runs open-ended with periodic rent updates capped by law; fixed-term contracts of 1–3 years are also common and often proposed for furnished international lets. Deposits legally max at two months’ rent (one month is typical); landlords frequently request a fiador — a Portuguese guarantor — which foreign newcomers can usually replace with prepaid rent or income proof. Rent in the 2026 market: see our cost-of-living guide for ranges by city.

Where newcomers get burned

• Unlicensed short lets dressed as annual rentals — ask for the alojamento local number if the lease smells touristy
• Cash-only listings with no contract — no contract, no address proof for AIMA, no protection
• Requests for deposit before viewing — the classic scam pattern on Facebook and marketplace listings
• Verbal “included in rent” promises — utilities, condo fees and IMI allocations go in writing or they don’t exist

What protects you

Sign only with a written contract registered for the AT (the landlord’s duty, but verify), photograph condition at entry, and keep payment traces banked — all of which also matters later, because a registered lease is proof of address for your residence application and SNS registration. When the market pushes back, remember the long game: a properly papered rental does double duty as your immigration file.