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Where to send your Microsoft 365 cancellation letter

Read the addresses on this page next to the full guide to cancelling Microsoft 365.

The addresses we hold

Every address our database holds for Microsoft 365, with the Redmond one a cancellation letter goes to first and the envelope wording that matches it.

Where the letter goesMailing address

Microsoft 3651 Microsoft WayRedmond, WA 98052-6399

Microsoft 365 takes its post at this Washington address (ZIP 98052-6399).

How to address the envelope

  1. Copy it exactly onto the envelope

    Write out 1 Microsoft Way, Redmond, WA 98052-6399 as shown above, including the 98052-6399 postal code, exactly as printed.

  2. Add your return address

    Top-left, your own name and address. A return address is what the post office needs to send the letter back if Microsoft 365 has moved.

  3. Certified mail, not a courier

    Ask at the counter for the certified service with a return receipt: the fee is on top of the postage, the receipt is postmarked, and the article number traces the delivery.

  4. Keep the proof together

    Your copy of the letter, the mailing receipt and the tracking record belong together in one file, especially with the notice rule: Cancel more than 2 days before the billing date.

Your letter to Microsoft 365

The request itself is short: Microsoft 365 is asked to end the account, stop the charges and confirm in writing, with the account email, the plan or product name and the invoice or order number from your latest receipt where the brackets are.

Sample cancellation letter

[Your name] [Your street address] [City, State ZIP] [Your email address]

[Date]

Microsoft 365 1 Microsoft Way Redmond, WA 98052-6399

To whom it may concern,

I am cancelling my account with Microsoft 365, account or member number [number], with effect from [date or "immediately"]. Please end every add-on and linked plan on this account at the same time.

I am giving notice under my agreement: Cancel more than 2 days before the billing date.

Please stop all future charges to my payment method, remove my stored payment details, and send written confirmation of the cancellation and its effective date to [your email address].

Sincerely, [Signature] [Your printed name]

Let Postbye cancel Microsoft 365 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.

Cancel Microsoft 365