How do I cancel ADT Security?

To cancel ADT Security, follow the step-by-step guide on this page. The process varies by platform - see the method sections above for online, phone, and app cancellation options.

Can I get a refund when I cancel ADT Security?

ADT Security refund policies vary. Most services do not offer prorated refunds for the current billing period, but you retain access until the period ends. Check the refund section in this guide for ADT Security's specific policy.

Will I lose my data if I cancel ADT Security?

When you cancel ADT Security, you typically retain access until the end of the billing period. Download or export any important data before your access expires. See this guide for ADT Security-specific data retention details.

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Cancellation guide · Updated 2026

How to Cancel ADT Security

Last verified May 2026 · ETF up to 75% of remaining contract · Free guide

CancelNest Editorial
Reviewed & updated June 2026

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ADT charges an early termination fee of up to 75% of remaining contract value.

Before canceling, check your contract end date. Waiting until your contract expires avoids the ETF entirely. Call ADT to confirm your exact ETF amount before proceeding.

Hard to cancel - ETF applies

Cancel ADT - step by step

1
Call 1-800-238-2727 (ADT Customer Service)
ADT cancellation requires a phone call. Say you want to cancel your monitoring service. Have your account number, the last 4 digits of your SSN (or account PIN), and your verbal password ready.
2
Ask for your exact ETF amount
Before confirming, ask: "What is my early termination fee and when does my contract end?" Get this in writing if possible.
3
Request cancellation confirmation in writing
Ask ADT to send a cancellation confirmation email or letter. Keep it - billing issues after cancellation are common.
4
Return any leased equipment
If you lease ADT equipment (rather than own it), ADT may require return. Ask about equipment ownership when you call.

Moving to a new home?

If you're moving, ADT often allows you to transfer your contract to your new address instead of canceling and paying an ETF. Ask about the relocation option.

Charged by ADT after canceling or hit with an unexpected ETF?

Get a dispute letter for ADT billing or your bank.

Get dispute letter →

Last verified - May 2026

Frequently asked questions

What is ADT's early termination fee?: ADT's standard ETF is 75% of the remaining contract value. On a $45/month contract with 12 months remaining, that's $405. Always confirm your specific amount with ADT before canceling.
Can ADT waive the ETF?: ADT sometimes waives or reduces the ETF for customers experiencing financial hardship, moving to an area ADT doesn't serve, or military deployment. Ask directly when calling.
Does ADT require a contract?: ADT's standard monitoring contracts are 24–36 months. Month-to-month options are available at higher rates. Check your original agreement for your specific term.