Cancel your Square subscription by mail
Square takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. Square receives written requests in Toronto, Canada.
Let Postbye cancel Square 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 Square.
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- 3 Square cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Square by mail
Start with your account details
Start with the account email, the last four digits of the linked bank account or card and the membership tier, so the request to Square names the right account the first time.
Put the request in writing
Postbye turns the request into a finished English letter headed “Subject: Cancellation Request – [your name]”: close the Square account, stop every charge and reply in writing.
Post the letter
Take the letter to the post office and ask for certified delivery to M2N 7E9 Toronto. Keep the tracking number it gives you.
File the delivery record
Keep the tracking record with your copy of the letter. If Square bills you after the date it received the request, you have the dates to point to.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Square cancellation letter goes
Square takes its post at Yonge Street 5000, M2N 7E9 Toronto, Canada, which is where a cancellation letter belongs.
Toronto is in Ontario, Canada; the postal code to quote is M2N 7E9.
Your name, address and email appear in a short block labelled Account holder, Billing address on file and Email on file, under the greeting “To Whom It May Concern,”.
Prefer to write it yourself? Use our letter template
Before you cancel Square, check these
- Settle any outstanding balance first. Closing a membership does not clear what you owe.
- Ask for the direct debit or card authorisation to be ended, not only the membership.
- Investment and credit-builder products can have their own steps for closing the underlying account.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Square 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 finance or credit subscription
Finance and credit apps bill a membership fee through a linked account, so the request has to end the membership and the authorisation to take payments.
Putting the request in writing means there is a date on file for when you asked, which matters if a charge appears afterwards.
Square cancellation at a glance
- How Square accepts cancellations
- By mailed letter
- Mailing address on file
- Square Yonge Street 5000 M2N 7E9 Toronto Canada
- Country
- Canada
- Letter language
- English (template en-generic)
- Category (from the company name)
- Finance & credit
- Added to the database
- May 19, 2026
- Data last checked
