Setting Up Home Internet (Internet Doméstico) in Portugal in 2026 — A Practical Guide to FTTH Fibre, the MEO/NOS/Vodafone/Digi Market, 24-Month Lock-Ins and the Portabilidade Switch

Portugal is, on the ANACOM numbers, one of the most fibre-dense markets in Europe — 71.4% of all fixed broadband accesses are now FTTH/B fibre, 4.8 million households are wired up and roughly 90% of families have fixed broadband at home. For a newly arrived expat, that is excellent news. The bad news is that the same market is built on 24-month fidelização contracts, four big retail brands that all sell the same fibre with different labels, a low-cost challenger that is rewriting the price floor, and a portability process that most people only discover when they try to leave. This guide walks you through how the market actually works in 2026, what tariffs you should expect to pay, how to read the contract before you sign, and how to switch operator without losing your number or your line.

The four operators that matter

ANACOM's most recent fixed-broadband market read (Q3 2025) shows four operators with meaningful subscriber share:

• MEO (Altice Portugal) — 41.0% of fixed broadband accesses. Largest fibre footprint, biggest TV channel line-up, the operator most likely to already have an installed access point in the building you are moving into.
• NOS — 33.4%. The next-biggest fibre operator, very strong on bundled TV (premium sports rights) and the operator with the deepest cable-TV legacy.
• Vodafone — 21.7%. Same wholesale fibre access as the other two on most addresses, very competitive on mobile-plus-broadband bundles, the most aggressive on smart-home / IoT add-ons.
• Digi (DIGI/NOWO group) — 3.1% and growing fast. The Romanian-owned low-cost challenger now resells fibre at roughly half the headline price of the incumbents, with a three-month lock-in instead of 24 months. It is the operator the other three are most afraid of in 2026.

Fibre (FTTH/B) is now the default. ANACOM's data shows fibre added 230,000 net new accesses in the last reporting year alone (+7.2%) and is the only technology growing. Cable, DSL and fixed wireless are running off, and any tariff you sign in 2026 should be a fibre tariff unless the address physically has no fibre coverage — which now applies to a vanishingly small share of the country.

What tariffs to expect in 2026

Three big things shape what you will actually pay. First, the three incumbents (MEO, NOS, Vodafone) all confirmed price increases for 2026 under the contractual inflation-linked clauses written into your 24-month contract. Digi, by contrast, has publicly committed to keeping its 2026 prices flat. Second, almost every retail tariff is a bundle: 1 Gbps fibre is the headline product, but you will be sold mobile lines, TV channels and a fixed phone number in the same envelope. Third, the bundle versus standalone pricing is genuinely asymmetric — a stripped-down internet-only product can cost almost as much as the triple-play.

The benchmark prices to anchor on

• Digi 1 Gbps fibre, internet only: from around €10/month, three-month lock-in. The most aggressive single-service price in the market in 2026.
• Low-cost triple-play (TV + fibre + 100 GB mobile data): roughly €24–€32/month, depending on operator and promotional period. This is the bracket Digi, NOWO and the secondary brands of MEO/NOS/Vodafone all crowd into.
• Standard incumbent triple-play (fibre + TV + 1–2 mobile lines): typically €40–€60/month on a 24-month contract, with the second-year price usually 15–25% higher than the promotional first-year price. Read the contract closely — the second-year price is the one you will be paying for longer.
• Premium TV + fibre + multiple mobile lines + cinema/sports: €70–€110/month. Mostly NOS and MEO, driven by Liga Portugal and Champions League rights.

The fidelização (lock-in) clause is the trap most expats walk into

The single most expensive mistake a new arrival makes is signing a 24-month MEO, NOS or Vodafone contract without realising that early termination triggers a clawback of the discounts received plus a penalty fee. Under the current Lei das Comunicações Eletrónicas:

• The maximum permitted lock-in is 24 months for residential customers, and operators must offer at least one alternative without lock-in (in practice, at a substantially higher monthly price).
• Equipment subsidies (router, set-top box, modem) and price promotions are explicitly recoverable on early termination — typically calculated as the remaining months times the difference between the promotional and standard price, plus an early-termination fee.
• Digi, NOWO and the low-cost brands generally use a three-month minimum permanência period instead of 24 months, which is by far the most consumer-friendly clause on the market and a major reason switching to Digi is so much easier than switching to or away from an incumbent.
• If you sign a 24-month contract and then move house to an address where the operator does not have coverage, the operator must release you from the contract without termination fees — but you will need to make the no-coverage case in writing.

Portabilidade — how to switch operator without losing your number

Phone-number portability (portabilidade) is free of charge by law and the receiving operator handles the entire process. The mechanics:

1. Sign the new contract with the receiving operator and request portability of your existing fixed and/or mobile numbers.
2. The receiving operator notifies the donor operator, which has a regulated window to confirm or to flag a blocking reason (unpaid invoices, identity mismatch, contract still in fidelização).
3. The activation date is communicated to you in advance. The technical port itself happens overnight and the service window is usually less than four hours.
4. If you are inside a fidelização period, the donor operator can — and will — bill you the early-termination clause. Portability does not waive the lock-in penalty.
5. If the port fails because the donor operator cited an incorrect reason, you can escalate to ANACOM through the Livro de Reclamações or its complaints portal, and increasingly through the new 15-working-day complaint window framework that ANACOM is itself adopting in practice.

Practical install timelines and the building dimension

For most addresses in Lisbon, Porto and the dense coastal strip, fibre is already in the building. In that case, an install slot is typically available within 5–10 working days of signing the contract, and the install itself takes 60–90 minutes — the technician runs fibre from the building's central distribution box to your apartment, terminates it on an ONT (Optical Network Terminal), and provisions the router. For older buildings without a central FTTH distribution point, the timeline stretches: the installation may require building-management approval and, in some cases, the operator will need to physically wire the staircase. Apartments in Alfama, Bairro Alto, the Porto Ribeira historic core and older village houses in the interior are the addresses where these install delays are most common.

The router question — neutralidade and Wi-Fi

• You are not obliged to use the operator's router. ANACOM rules require operators to allow customers to use compatible third-party routers, although the operator-supplied unit is included in the monthly price and is usually adequate for most apartments.
• Wi-Fi 6 routers are now standard on incumbent fibre plans; Digi's basic plan ships with a more limited unit, so factor in a mesh upgrade if you have a large apartment or thick interior walls.
• The IPv6 rollout is well advanced on the Portuguese fibre network in 2026, but if you need a static public IPv4 address (remote-work edge cases, self-hosting), check explicitly — most retail tariffs sit behind CGNAT and a static IP is a paid add-on.

Tarifas Sociais — the regulated social tariff for low-income households

The Tarifa Social de Internet, in place since 2022, gives qualifying low-income households a regulated internet-only service at a price cap of €6.15/month (excluding VAT) for at least 10 Mbps download. Eligibility tracks the same social-benefit list used for the Tarifa Social de Energia and Tarifa Social de Gás — Complemento Solidário para Idosos, Rendimento Social de Inserção, Abono de Família at first/second bracket, Pensão Social de Invalidez and a few other categories. The application is made through the chosen operator (all five obligated operators participate); the operator verifies eligibility with the Segurança Social database and applies the tariff retroactively to the date of application.

What this means for you

• If you are a short-term expat (less than 12 months in Portugal): Sign with Digi or with a low-cost brand. The three-month lock-in is the only consumer-friendly clause in the market, and you avoid the 21-month tail of a 24-month MEO/NOS/Vodafone contract.
• If you are settling long-term and care about TV / sports content: MEO and NOS are still the right choice for premium content. Negotiate hard on the 24-month price step-up: ask explicitly what you will pay in month 13 and beyond, and get it in writing.
• If your priority is mobile-plus-internet and you are price-sensitive: Vodafone has been the most aggressive on quadruple-play bundles in 2026, but Digi's lower mobile-data prices make it the better arithmetic for most heavy mobile users.
• If you are moving to an older or historic building: Check fibre coverage at the exact address before you sign. Use any operator's coverage map and, if in doubt, ask the building's administração de condomínio whether a central FTTH distribution box has been installed.
• If you are eligible for Tarifa Social benefits: Apply. €6.15/month for 10 Mbps is a meaningful margin against any retail offer and the application has been simplified since 2024.
• If you already have a contract and the 2026 price hike has hit your bill: Check whether your fidelização period has expired. If it has, you can give 30 days' notice in writing and either renegotiate at the threat of leaving, or actually leave for Digi.

Where to check the official numbers

ANACOM publishes quarterly fixed-broadband and mobile-services reports at anacom.pt, and an annual electronic-communications observatory that breaks down market share, average revenue per user, fibre coverage by NUTS region and complaints data by operator. DECO PROteste runs a comparative tariff tool that is the most up-to-date single source on day-to-day promotional prices, including the secondary brands (Uzo, WTF, NOWO promotional lines) that the incumbents use to compete with Digi without cannibalising their main brand.

If you would rather not navigate the comparison yourself, the rule of thumb is simple. If you want premium TV content, go with MEO or NOS and read the small print on the second-year price. If you want the lowest sustainable monthly bill, go with Digi. If you are unsure, take Digi's three-month lock-in — by the time it expires you will know exactly what you need from a longer contract.