How to Cancel a Contract in Portugal by Registered Letter

You joined a gym, signed up with MEO, Vodafone or NOS, took out an insurance policy or installed a Verisure alarm, and now you want out. In Portugal, the safe way to cancel almost any contract is a carta registada com aviso de receção: a registered letter with a signed proof-of-delivery slip, the Portuguese equivalent of US certified mail with a return receipt. This guide explains why that specific format matters, what to write, and how to send it without visiting a post office, whether you live in Portugal or abroad.

Why a registered letter, and not an email or a phone call?

The core problem with cancelling contracts is not the cancellation itself, it is proving it happened. Companies keep billing, call centres "lose" requests, and email inboxes are easy to dispute. A registered letter with AR (aviso de receção, the signed proof-of-delivery slip) solves this because it gives you three things at once:

• Proof of sending: CTT (the Portuguese post office) issues a receipt with a registration number and date.
• Proof of content: you keep a copy of exactly what you sent, tied to that registration.
• Proof of receipt: the AR slip comes back signed, showing who received the letter and on what date. That date is what starts your notice period running.

Many Portuguese contracts explicitly require cancellation in writing, and some name the registered letter as the accepted channel. Even when they accept other channels, the registered letter with AR is the format that Portuguese companies, regulators and courts recognise without argument. If a dispute ever reaches a complaint or a court, this is the proof that holds up.

Contracts expats most often need to cancel

• Telecoms (MEO, Vodafone, NOS): internet, mobile and TV bundles, usually with a loyalty period (fidelização). Loyalty periods in telecoms are regulated in Portugal, and cancellation notice is commonly around 30 days, but the exact terms and any early termination fees are in your contract, so check it first.
• Gyms: memberships often renew automatically and require written notice to stop.
• Insurance: car, home and health policies typically renew each year unless you object in writing before the renewal date.
• Alarms and security (for example Verisure): long contracts with automatic renewal and formal notice requirements.
• Other subscriptions and services: utilities on leaving the country, condominium services, memberships of any kind.

Step by step: cancelling a contract by registered letter

• 1

  Check the notice period and loyalty period in your contract

  Confirm when you can cancel without penalty, how much notice you must give, and the address the company designates for formal communications.

• 2

  Write the letter in Portuguese

  Short and factual. Identify yourself, quote the contract or customer number, state that you are cancelling and from what date, and ask for written confirmation. See the section below for the content.

• 3

  Send it as a registered letter with AR

  Either at a CTT counter, or fully online: upload the letter, we print it and post it through CTT with aviso de receção within 2 business days. €14.99 all included, from any country.

• 4

  Keep every proof

  The copy of the letter, the CTT registration receipt, the tracking history and the signed AR slip. If billing continues after the effective date, these documents are your case.

What to say in the letter

A cancellation letter does not need legal language. It needs to be unambiguous. In Portuguese, include:

• Your identification: full name, address, and your NIF (Portuguese tax number) if the contract has one on file.
• The contract: customer number, contract number or policy number, and the service concerned.
• The declaration: a clear statement that you are terminating the contract ("venho por este meio denunciar o contrato"), with effect from the end of the applicable notice period.
• The date: the date of the letter, since the notice period is usually counted from the date the company receives it.
• A request for confirmation: ask the company to confirm the cancellation and the final billing date in writing.
• Signature: sign the letter by hand, or digitally with the Portuguese Chave Móvel Digital if you have it.

Sending it without going to a post office

If you can get to a CTT counter, you can send the letter there. But if you have no printer, no time, or you are not in Portugal at all, you can send the registered letter online: upload your PDF, Word file or photo, enter the company's address and your own, and pay €14.99 all included (printing up to 10 pages, envelope, CTT postage and the AR). The letter is posted in Portugal through CTT within 2 business days and you receive the proof of sending and the tracking number by email. It works from any country, with your foreign address printed as the sender.

Frequently asked questions

Do I have to cancel by registered letter, or is email enough?

Check your contract. Some companies accept email or an online form, but the registered letter with AR is the only channel that produces independent, dated, signed proof of receipt. When money or a notice period is at stake, it is the channel to use even where others exist.

Does the letter have to be in Portuguese?

In practice, yes. You are communicating with a Portuguese company under a Portuguese contract, and a letter in Portuguese removes any argument about clarity. Keep it short and factual.

When does my notice period start counting?

Usually from the date the company receives the letter, which is exactly the date on the signed AR slip. That is one more reason to use AR rather than plain registered mail.

What if I am still inside the loyalty period?

You can normally still cancel, but the company may charge an early termination amount as set out in the contract. In telecoms these charges are regulated. Read your contract, and if the amount claimed seems wrong you can dispute it in writing, again by registered letter.

What if the company keeps billing me after the cancellation?

Reply in writing, attaching the proof of sending and the signed AR, and demand a refund of amounts billed after the effective date. If the company does not resolve it, the same documents support a complaint to the relevant regulator or a claim in court.