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Cancellation of a mobile or internet contract (Switzerland)
Switzerland · in English · for consumers
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11 questions · about 5 min
Made for use in Switzerland
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For customers in Switzerland: cancels a mobile, internet, TV or landline contract at the end of the minimum term, with the contractual notice period, because of an announced price or contract change, or for good cause, and asks for written confirmation and how to return equipment. The periods come from the contract and the provider's terms, not from a statute. Send it by registered post; ombudscom mediates disputes. Swiss authorities and courts work in their official language — German, French or Italian — so this English version is for dealings between private parties.
- Made for use in Switzerland
- Last updated November 4, 2026
- Document in English
Published byDocMuse
When to use this document
- Your mobile phone contract in Switzerland is coming to the end of its minimum term.
- Your broadband provider has announced a price increase and you want out.
- You are leaving Switzerland and need to cancel your internet and TV package.
- You have switched to a cheaper provider and want the old contract ended in writing.
What you fill in
The details the document asks for.
- Customer
- Customer's address
- Provider
- Provider's address
- City
- Date
- Subscription or service (e.g. mobile, internet, gym)
- Contract number
- Phone number or line number
- When and why you cancel: minimum term, notice period, price change or good cause
- Reason for the notice (only for an important reason)
Common questions
- How long is the notice period for a Swiss mobile or broadband contract?
- As long as your contract says: no Swiss statute sets one. Minimum terms of 12 or 24 months are common, often tied to a discounted handset, and notice periods of one to three months; some providers have neither. Leaving before the minimum term ends usually means paying the fees until it ends. Look up the period in your customer account or contract papers and post the notice in good time.
- Do I need this letter if I am porting my number to another Swiss provider?
- Often not. Number porting is requested from the new provider, not the old one. Ask the new provider whether it ends the old contract for you as part of the transfer; if it does, this letter is unnecessary, and cancelling yourself first can cost you the number. The old contract's remaining minimum term and notice period still apply either way.
- What if a Swiss telecom company will not accept my cancellation?
- Write to the provider first, enclosing a copy of your notice and the registered-post receipt: ombudscom, the telecommunications conciliation body, expects an attempt to agree. If that fails, ombudscom mediates between customers and providers before any court; the customer pays CHF 20 for the examination of the case. A renewal clause hidden in the small print can be unfair (Art. 8 UWG). Swiss authorities and courts work in their official language — German, French or Italian — so for a formal dispute you may need a version in that language.
How you can sign this document
- Print it and sign by hand. The signature lines in the document are left blank on purpose — sign on them in ink.
- Sign it yourself with a qualified electronic signature. If you already hold a QES — Evrotrust, B-Trust, StampIT, ZealiD or any qualified provider on the EU Trusted List, on a card, a USB token, in a mobile app or in the cloud — our signing guide explains step by step how to sign this exact file without invalidating it. Step-by-step help, and a way to check it worked
DocMuse sells documents, not legal advice. Acceptance always depends on the recipient's rules and your local law.
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