Cancel your Smartfax subscription by mail
Smartfax takes cancellation requests by mailed letter, so a dated certified-mail letter is the record that counts. Letters to Smartfax go to Los Angeles, United States.
Let Postbye cancel Smartfax 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 Smartfax.
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- 3 Smartfax cancellations handled this month
- Certified mail with tracking
- Mailed every business day
- Delivery proof sent to you
- We confirm your cancellation
How to cancel Smartfax by mail
Start with your account details
Have the account email, the plan or product name and the invoice or order number from your latest receipt to hand. The details in the letter need to match what Smartfax has on file.
Write your request
Your Postbye letter to Smartfax asks for three things: the account closed, no further charges and a written confirmation, all under “Subject: Subscription termination – Smartfax”. It comes from our English template.
Post it with proof of delivery
Address the envelope to Smartfax, Los Angeles, exactly as printed in the next section. Certified mail gives you a tracking number and a delivery record.
Save the tracking record
It shows the date Smartfax received your letter. Check your next statement: no Smartfax charge should post after the cancellation date.
With Postbye, steps 2 to 4 take about two minutes of your time.
Where your Smartfax cancellation letter goes
Smartfax takes its post at 700 15th Floor Flower Street, Los Angeles, CA 09001, which is where a cancellation letter belongs.
Los Angeles is in California (ZIP 09001), a domestic address for certified mail within the United States.
Your name, address and email appear in a short block labelled Name, Address and E-mail, under the greeting “To Whom It May Concern,”.
Prefer to write it yourself? Use our letter template
Every address we hold for Smartfax, with the envelope wording
Before you cancel Smartfax, check these
- Annual plans can charge a cancellation fee or continue to the end of the term. Check the term on your invoice.
- Apps billed by an app store are cancelled in that store. Check which party appears on your statement.
- Team and business plans are billed per seat. Name the plan and the number of seats in the request.
Several states set rules for subscriptions that renew on their own. See what yours requires in automatic renewal laws by state.
Let Postbye cancel Smartfax 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 software or app subscription
Software plans are billed per plan or per seat, often yearly, and the app store version is billed by the store rather than the developer, so the request has to name the plan and who bills it.
A phone call leaves nothing behind; a letter leaves a copy, a date and a delivery receipt.
Smartfax cancellation at a glance
- How Smartfax accepts cancellations
- By mailed letter
- Mailing address on file
- Smartfax 700 15th Floor Flower Street Los Angeles, CA 09001
- Country
- United States
- Letter language
- English (template en)
- Category (from the company name)
- Software & apps
- Added to the database
- April 30, 2026
- Data last checked
