Terminate your subscription correctly. Find the physical address, official email, legal notice periods, and a free cancellation template.
Early termination fee: ADT contracts are typically 36 months. If you cancel early, ADT may bill you 75% of the remaining monthly charges for the rest of the contract term.
Certifies the sending and content of your request. Safe and legally binding solution.
Send a physical letter via tracked post directly to the Florida headquarters.
adtcares@adt.com
Keep the delivery receipt.
Log in to your MyADT portal to check contract details or contact support chat.
Send your cancellation request to ADT via LegallyMail to obtain a certified, timestamped delivery proof. Fully equivalent to registered mail, from home.
✉️ Cancel with LegallyMail nowCopy the text below, complete the highlighted fields, and send via LegallyMail.
Date: [Date]
ADT Security Services
Attn: Customer Relations / Cancellations Department
1501 Yamato Rd, Boca Raton, FL 33431
Subject: Cancellation of Alarm System Contract - Account Number [ACCOUNT NUMBER]
Dear Customer Support,
Please accept this letter as formal request to cancel my ADT security services and terminate my contract for account number [ACCOUNT NUMBER], effective 30 days from today.
I request that you stop all automatic credit card billing or direct debit charges linked to this account upon the termination date.
Please send me a written confirmation stating the effective cancellation date and confirming my account balance is zero.
Sincerely,
[YOUR FIRST AND LAST NAME]
Address: [YOUR ADDRESS]
Phone: [YOUR PHONE NUMBER]
Email: [YOUR EMAIL ADDRESS]
Signature: ___________________________
Follow these instructions to close your alarm account safely.
Check your original contract start date to see if you have finished your minimum term.
Fill in the highlighted fields of the template with your personal account details.
Deliver the written cancellation request through LegallyMail to ensure you get a valid proof of receipt.
ADT will notify you of the contract closure date and any applicable final balance.
Ensure no further monthly subscription fees are debited from your card or bank.