Cancel your Onefit subscription by mail
To end a Onefit subscription you write to them: Onefit handles cancellations by post. Onefit receives written requests in Amsterdam, Netherlands.
Let Postbye cancel Onefit for you
We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.
Money-back guarantee within 10 business days.
Postbye is not affiliated with Onefit.
- 4.8 from 2,931 reviews
- 2 Onefit cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Onefit by mail
Start with your account details
Start with your membership number, the home club you joined at and the name on the membership agreement, so the request to Onefit names the right account the first time.
Write your request
The request is prepared in Dutch (template nl), under the subject line “Onderwerp: annuleringsverzoek – [your name]”: end the subscription, stop all further charges and confirm in writing to you.
Send the letter by certified mail
Send it certified to Amsterdam, Netherlands, copying the address from the next section letter for letter, and keep the receipt slip.
File the delivery record
It shows the date Onefit received your letter. Check your next statement: no Onefit charge should post after the cancellation date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Onefit cancellation letter goes
Onefit lists Apollolaan 151, 1077 AR Amsterdam, Netherlands as its mailing address.
Copy the postal code 1077 AR exactly: it is what routes the letter to Noord-Holland, Netherlands.
The letter is addressed “Geachte heer/mevrouw,” and its details block uses the labels Accounthouder, Factuuradres in dossier and E-mailadres in dossier.
Prefer to write it yourself? Use our letter template
Before you cancel Onefit, check these
- A home club can have its own rules. Name the club in the letter so the request is not bounced between locations.
- Freezing or pausing a membership is not cancelling it. Say clearly that you want the membership ended.
- Read the notice window in your agreement. A letter that arrives after the cut-off can miss that month's charge.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Onefit for you
We write your letter, mail it by certified mail the next business day, and confirm when the cancellation went through. You keep the signed proof.
Cancelling a gym or fitness membership
Gyms often require written notice, set a notice window before the next billing date and can tie the cancellation to the home club, so a dated letter is the record that counts.
If a charge shows up after you cancelled, the letter and its receipt are what you put in front of the company or your bank.
Onefit cancellation at a glance
- How Onefit accepts cancellations
- By mailed letter
- Mailing address on file
- Onefit Apollolaan 151 1077 AR Amsterdam Netherlands
- Country
- Netherlands
- Letter language
- Dutch (template nl)
- Category (from the company name)
- Gyms & fitness
- Added to the database
- June 3, 2026
- Data last checked
