Cancelling a Telecom Contract in Portugal in 2026 — A Practical Guide to the Fidelização Lock-In, the Early-Termination Penalty, Porting Your Number, and the Grounds That Let You Leave for Free

Signing up for a phone, internet and TV bundle in Portugal is easy; leaving one is where the trouble starts. Almost every offer from MEO, NOS, Vodafone, DIGI or NOWO comes wrapped in a fidelização — a loyalty or lock-in period — and misreading it can turn a routine switch into a bill for hundreds of euros. The rules, though, are firmly on the consumer’s side. This guide explains how the lock-in works, how the early-termination penalty is actually capped, how to keep your number when you switch, and the specific situations that let you walk away for free. It is governed mainly by the Lei das Comunicações Eletrónicas (Electronic Communications Law) and Lei n.º 15/2016, and enforced by ANACOM, the national communications regulator.

What the fidelização actually is

A fidelização is the period during which you agree not to leave, in exchange for something the operator gave you up front: a subsidised router or handset, free installation and activation, or a discounted monthly price. The total lock-in cannot exceed 24 months. Crucially, the operator must also offer you the same service with no loyalty at all, and with 6- and 12-month options, for each benefit on the table — so you can always choose a shorter leash for a higher price. Ask for the no-fidelidade price before you sign; it is the figure that tells you what the “free” equipment really costs.

How the early-termination penalty is capped

The single most important thing to know is that the penalty for leaving early is not the sum of the monthly fees left on the contract. Charging that is expressly forbidden. Under Lei n.º 15/2016, the penalty must be proportional to the advantage the operator gave you, and identified and quantified in the contract itself. In practice:

Subsidised equipment. If you were given a discounted phone or router, the penalty reflects the part of that subsidy you have not yet “worked off” — it amortises month by month across the lock-in, so it shrinks the longer you stay.

Installation, activation or promotions. For non-equipment benefits, the charge cannot exceed the value of the advantage that, proportionally to the time elapsed, remains to be recovered. During the loyalty period the charge also cannot exceed the costs the provider actually incurred for installation, and no extra indemnity may be piled on top.

Before you cancel, dig out your contract and find the clause that quantifies this. If the operator quotes you a number that looks like “all the remaining months,” it is very likely charging you more than the law allows.

Giving notice the right way

To end a contract you have to give notice — a denúncia — and you should do it in writing (email, the operator’s online form, or a registered letter) so you have proof of the date. The operator cannot require you to give more than 30 days’ notice. Keep every reference number and confirmation: the same law says a company cannot enforce a lock-in penalty at all unless it can show you expressly agreed to the fidelização in the first place, so your paper trail is your protection.

When you can leave for free

ANACOM recognises several situations in which you can terminate a locked-in contract without paying the penalty. You can leave for free if you emigrate; if you move your permanent residence to an area where the operator does not provide the contracted service (or an equivalent one); if you lose your job through dismissal that is not your fault and suffer a loss of income; or if you become unable to work, whether temporarily for more than 60 days or permanently. In each case you will need to provide documentary proof, so gather the paperwork before you make the call.

There is one more free exit that catches many people out: if the operator changes the terms of your contract — a price rise, a change of conditions — it must notify you in advance, and you then have the right to terminate without penalty within that notice window. Read the messages and bill inserts your provider sends; a mid-contract price increase is often your cue to leave a deal you no longer want, at no cost.

Keeping your number: portabilidade

Switching operators does not mean losing your number. Portabilidade (number portability) lets you carry it across, and the operators cannot charge you for the move itself. You start the process with the new (receiving) operator, who then runs the whole thing — you do not have to call your old provider to ask permission. It completes on a date agreed with you, normally within one business day, and it cannot be refused except in narrow cases: the number is not portable, another portability request for it is already pending, or the validation code does not match the losing operator’s records.

Two cautions. First, if you are still inside a lock-in, you can port your number, but the early-termination penalty still applies — portability and fidelização are separate issues. Second, if the operators miss the agreed deadline, you are owed compensation: €3 per number for each full day of delay, and €23 per number for each day of service interruption, up to a ceiling of €5,750. Expect a short break in service during the switch — up to three hours — for which you must get at least 12 hours’ notice.

A quick checklist

Before you cancel or switch: find your fidelização end-date and the exact penalty clause; put your notice in writing and keep the confirmation; if you are keeping your number, start the port with the operator you are moving to; and hold on to proof of any grounds — a job loss, a move, a price change — that entitles you to leave for free. If a provider stonewalls you, record it in the Livro de Reclamações and escalate to ANACOM — our guide to filing a consumer complaint through the Livro de Reclamações walks through that route. For the parallel job of setting up (and switching) your home utilities, see our guide to household electricity and gas contracts, and if an operator’s portal asks you to sign in to confirm a change, our guide to the Chave Móvel Digital covers the state digital login you may need.