Cancel ADT Security: Step-by-Step Guide

How to cancel ADT security without paying surprise termination fees

Why canceling ADT security requires planning and documentation

ADT Security does not offer a simple online cancellation button. Unlike most modern digital services, ADT requires you to initiate your cancellation request by telephone and typically demands written confirmation before your account actually closes. If you skip steps or fail to document your request, your billing will continue, your account will remain active, and you could face unexpected early termination charges that sometimes exceed $200. At Tocancel, we have helped thousands of consumers navigate locked-in security contracts and escape unwanted fees by understanding exactly what ADT requires and following the process to the letter.

This guide walks you through your legal rights, the exact steps to cancel ADT Security, how to avoid early termination fees, and how to document your cancellation so billing stops and disputes are resolved in your favor.

What ADT security is and how its contracts work

ADT Security is a nationwide residential and commercial alarm monitoring provider. The company offers professionally monitored alarm systems, do-it-yourself equipment packages, video surveillance, environmental sensors, and mobile app access for account management. ADT bundles monthly monitoring fees with equipment packages and frequently ties discounts on installation or equipment to multi-year monitoring contracts. These agreements range from month-to-month flexibility to locked-in terms of 2, 3, or even 5 years. When you accept a discount on installation or equipment, you are almost always accepting an early termination fee if you cancel before the contract expires. Understanding your original contract term is the first step toward canceling without financial shock.

ADT security pricing and what your contract includes

ADT's pricing varies based on installation method, equipment choices, and monitoring features you select. The table below shows typical starting prices and contract structures you may encounter:

The critical takeaway: if you received any discount on equipment, installation, or setup, your contract term is almost certainly longer than month-to-month, and canceling early will trigger an early termination fee. Before you proceed, locate your original contract or most recent billing statement to confirm your contract end date and the fee you will owe if you cancel today.

Common reasons people cancel ADT security

Understanding why customers cancel helps you clarify whether cancellation is right for you and whether you have grounds to dispute early termination fees.

Why customers end their ADT service

Customers cancel ADT contracts for several consistent reasons. You may be relocating to a new home or apartment and want to discontinue service at your current address rather than pay for a property you no longer occupy. You might have discovered a competitor offering lower monthly rates, better features, or more flexible contract terms. Dissatisfaction with service quality, including false alarms, missed monitoring alerts, or poor technician behavior, drives many cancellations. Some customers simply cannot continue paying the monthly recurring fee due to financial hardship. Others purchased a home with an existing ADT system already installed and want to switch providers or stop monitoring altogether. A few customers dispute the early termination fee itself, believing the charge is unfair, excessive, or was not clearly disclosed at signup. Each of these reasons may strengthen your position if you decide to negotiate or dispute a termination fee.

When cancellation makes sense and when it does not

Canceling ADT makes sense if you are relocating permanently, have found a provider with lower rates and a shorter contract term, or if ADT's service quality has declined and you have documented evidence of missed alerts or false alarms. Cancellation does not make financial sense if your contract expires in the next 1 to 3 months, because the early termination fee will likely exceed your remaining monthly payments. Tocancel recommends calculating the total cost of cancellation (early termination fee plus any final charges) and comparing it to the cost of keeping service until your contract naturally expires. If the termination fee is $150 and you have only 2 months of service left at $30 per month, you are better off waiting. If the fee is $150 and you have 18 months remaining at $30 per month, canceling now may save you money. Make this calculation before you call ADT, so you enter the conversation with clear financial justification for your request.

How to cancel ADT security step by step

ADT cancellation requires following a specific sequence by phone, in writing, or both, depending on your account type and contract.

Step 1: gather your account information before you call

Before you contact ADT customer service, assemble the documents and information you will need. Locate your account number, which appears on your monthly billing statement or in the ADT mobile app under account settings. Note your contract start date, contract end date, and the monthly service fee. If you have it, gather your original service agreement to confirm the contract term and any early termination fee amount. Write down the phone number you want to use for ADT to reach you, and identify a preferred mailing address where ADT should send written confirmation of your cancellation request. Having this information ready before you call ensures the representative can pull your account quickly and will not delay the cancellation process.

Step 2: call ADT customer service and request cancellation

Contact ADT customer service at 1-800-238-2727 (also known as 1-800-ADT-ASAP) or 1-888-392-2039 depending on your contract type and region. When the representative answers, state clearly: "I want to cancel my ADT Security service." Do not use phrases like "I am thinking about canceling" or "I may want to cancel." Be direct and firm. Provide your account number and confirm your address when asked. The representative may ask why you are canceling, offer discounts to retain you, or explain your early termination fee. Listen to their offer, but remain focused on your goal. If a discount interest you and fits your budget, you can accept it and remain a customer. If not, say: "I appreciate the offer, but I have decided to cancel my service. Please process my cancellation request." Request a confirmation number for your phone call, and write it down immediately.

Step 3: request written confirmation of your cancellation

After the call, ask the ADT representative: "Will you send me written confirmation of this cancellation request by email or mail?" Many ADT representatives will say yes and send a confirmation email within hours. This email is valuable proof that you initiated your cancellation on a specific date. If the representative says written confirmation will come later, ask for an email address or fax number where you can submit a written cancellation request yourself. Write down this contact information before you end the call. This step protects you if ADT later claims they never received your cancellation request or that your account remained active by mistake.

Step 4: submit a written cancellation letter if required

In many cases, ADT will email or mail you written confirmation of your phone cancellation. However, if the representative indicated that a written letter is required to finalize cancellation, you must submit one by email, fax, or certified mail. Your written cancellation request should include:

• Your full name and account number
• Your service address and phone number on file
• The date you want your service to terminate (typically the date of your phone call or shortly after)
• A simple statement: "I hereby request cancellation of my ADT Security service effective [date]. Please confirm receipt of this request and provide a final billing date."
• Your signature if sending by fax or mail

If you send this letter by email, use a subject line like "Cancellation Request for Account [Your Account Number]" so it is easy for ADT to file and locate. If you send by fax, fax it to the number the representative provided and request a fax confirmation receipt. If you send by certified mail, use the mailing address that ADT provided and keep the tracking number. Tocancel strongly recommends sending your written cancellation request by email if possible, because email creates an automatic timestamp and delivery confirmation that proves you submitted your request on a specific date.

Step 5: monitor your account and final billing

After you submit your written cancellation, check your account in the ADT mobile app or wait for your final billing statement to arrive. Your final bill should show the cancellation date, any early termination fee (if applicable), any credits or refunds, and a zero balance or final amount due. The final bill typically arrives 7 to 14 days after your cancellation takes effect. If you do not receive a final bill within 21 days, or if your account shows continued charges after your cancellation date, contact ADT customer service again with your confirmation number and written cancellation timestamp as proof of your request. In practice, having written confirmation prevents most billing disputes because you can show ADT exactly when you requested cancellation.

Understanding early termination fees and your refund rights

Early termination fees are the main financial hurdle when canceling ADT Security before your contract ends.

How ADT calculates early termination fees

ADT's early termination fee is typically calculated as a percentage of your remaining contract value. If you signed a 36-month contract at $30 per month, your total contract value is $1,080. If you cancel after 12 months, you have 24 months remaining, worth $720. ADT may charge you 50 percent to 100 percent of that remaining balance as an early termination fee, which could range from $360 to $720. Some contracts specify a flat early termination fee instead (for example, $200 regardless of how much time remains). The exact amount depends on the language in your original service agreement. Before you call ADT, calculate what you think you will owe based on your contract terms, then compare that to what the representative tells you. If the numbers do not match, ask the representative to send you a written breakdown of the fee calculation. This written explanation is essential if you later decide to dispute the charge.

When ADT may waive or reduce early termination fees

ADT does not automatically waive early termination fees, but you may have grounds to negotiate or dispute the fee in several situations. If ADT failed to provide the required initial disclosure of the contract term and early termination fee amount, the fee may be unenforceable under federal law. If you are relocating and your new address is outside ADT's service area, ADT may waive the fee because they cannot fulfill the contract. If ADT service quality was poor, you have documentation of missed monitoring events, or false alarm charges were excessive and undisclosed, you may have a claim for damages that offsets the termination fee. If you enrolled in a promotional contract term that was verbally promised to you but not documented in writing, you may challenge the fee if you have evidence (such as emails or recorded calls) supporting your claim. Tocancel recommends documenting any service failures, poor technician experiences, or broken promises in writing, and including these issues in your cancellation request email so there is a written record of your complaint.

Refunds and credits after cancellation

ADT will credit any overpaid amounts on your account toward your final bill. For example, if you prepaid for three months of service and canceled after one month, ADT should refund the two months of unused service, minus any early termination fee. If your final bill shows a credit balance, ADT will typically issue a refund check within 30 days. If ADT owes you a refund and fails to issue one within 45 days after your cancellation takes effect, you can escalate your complaint to your state attorney general's office or file a dispute with your credit card company if you paid by card. In practice, refunds are usually straightforward if you cancel by phone and follow up with written confirmation, because there is no ambiguity about the cancellation date or what ADT owes you.

Your consumer rights when canceling ADT security

Federal and state consumer protection laws give you specific rights when you cancel a monitored security service contract.

Your legal position under the federal trade commission act

The Federal Trade Commission (FTC) enforces the Restore Online Shoppers Confidence Act and related rules that require companies like ADT to clearly disclose contract terms, including contract duration and early termination fee amounts, before you sign. This means ADT must have shown you the exact term and fee amount before you agreed to your contract. If ADT failed to do this, or buried the information in small print without highlighting it, you may have grounds to dispute the early termination fee. Additionally, the FTC requires companies to honor cancellation requests and not bill you after cancellation takes effect. If ADT continues to charge you after you cancel, this violates FTC rules and you can file a complaint with the FTC at reportfraud.ftc.gov. Your legal position is strongest when you have written proof of your cancellation request (email timestamp, confirmation number, certified mail tracking number) and evidence that ADT continued to bill you after that date.

State telemarketing and consumer protection laws

Many states have additional laws protecting consumers from unfair contract terms and billing practices. Your state attorney general's office enforces these laws and can investigate complaints against ADT if the company violates them. For example, some states require security service companies to allow month-to-month cancellation after an initial contract term expires, or to provide a free trial cancellation period if the contract term exceeds one year. If ADT is holding you to a contract term that your state law says is unfair or unenforceable, you can file a complaint with your state attorney general and request that they investigate. In practice, citing state law and mentioning the attorney general office often prompts ADT to reconsider whether fighting your cancellation is worth the regulatory attention.

The telephone consumer protection act and right to cancel

If you signed up for ADT Security service via telephone, the Telephone Consumer Protection Act (TCPA) may give you additional cancellation rights. The TCPA requires that companies honor cancellation requests made by phone and confirm cancellations in writing. If you called to cancel and ADT failed to honor your request or continued billing you, you may have grounds to file a TCPA complaint with the FTC or file a private lawsuit. The TCPA also allows consumers to recover statutory damages of $500 to $1,500 per violation, plus attorney fees, if you can prove ADT's violation. Your legal position is strong if you have proof that you called to cancel, requested written confirmation, and ADT failed to provide it or continued billing after your cancellation date.

Common mistakes to avoid when canceling ADT

Canceling a security contract can feel overwhelming, especially if you have been locked into a long-term agreement you did not fully understand when you signed up. The good news is that most cancellation mistakes are avoidable if you follow a clear process and document every step.

Mistake 1: not gathering your contract before you call

Calling ADT without your original contract or billing statement in hand puts you at a disadvantage. The representative will pull up your account and may quote you an early termination fee that you cannot verify. If you do not have your contract available, ask the representative to email or mail it to you, then wait until you have reviewed it before finalizing your cancellation. Knowing the exact contract term and fee amount prevents disputes later and gives you evidence to challenge the fee if it is higher than your contract specifies.

Mistake 2: canceling only by phone without written confirmation

Oral cancellation requests are easy for ADT to deny or forget. Always follow a phone call with a written cancellation email or letter that timestamps your request. Without written confirmation, ADT can claim they never received your cancellation request and continue billing you. You will then have to spend time and money disputing the charges with your credit card company or filing a complaint with the FTC. Written confirmation costs you nothing and eliminates this risk entirely.

Mistake 3: failing to confirm the final billing date before you hang up

Before you end your phone call with ADT, always ask: "What is the last day my service will be active and when should I expect my final bill?" Write down the date the representative gives you. When your final bill arrives, verify that it shows this date as your service end date. If your account shows charges after this date, you have written proof (from your call notes) that ADT promised service would end on a specific date. This proof makes it easy to dispute any post-cancellation charges.

Mistake 4: not keeping copies of all cancellation correspondence

Save every email from ADT, every confirmation number, and every receipt or proof of mailed cancellation letters. Create a folder on your computer or in your email labeled "ADT Cancellation" and file everything there. If a dispute arises months later, you will have complete documentation of your cancellation request, the date you submitted it, and ADT's acknowledgment of it. Without these records, you will struggle to prove your case to a credit card company or state attorney general.

Mistake 5: accepting a discounted rate instead of canceling when you wanted to cancel

ADT representatives are trained to offer discounts to retain customers. A $5 or $10 monthly discount can sound appealing in the moment. However, if your real goal is to cancel, accepting a discount locks you into another contract term and delays your exit by months or years. Make your decision before you call: either you are committed to staying and willing to negotiate a lower rate, or you have decided to cancel. Do not let a discount in the moment override your original plan to leave.

What to expect after your ADT cancellation takes effect

Cancellation is not truly complete until your account shows a zero balance and your system no longer accepts monitoring signals.

Timeline for account closure and final billing

After you submit your written cancellation request, expect the following timeline. Your cancellation becomes effective on the date you specified in your written request, usually the date of your phone call or a few days later. ADT will deactivate your monitoring service on this date, meaning your alarm panel will no longer send signals to ADT's monitoring center. You will receive a final billing statement 7 to 14 days after your cancellation date. This statement will show your service charges through your cancellation date, any early termination fee, any credits or refunds you are owed, and a final balance. If the final balance shows charges after your cancellation date, contact ADT immediately with your confirmation number and written cancellation request to dispute these charges. Most disputes are resolved within 30 days if you have written proof of your cancellation request.

Removing ADT equipment and returning hardware

Your contract likely specifies whether you must return ADT equipment or whether you can keep it. Some contracts require you to return the alarm panel, sensors, and other hardware within 30 days of cancellation, or you will be charged a non-return fee (usually $150 to $300). Other contracts allow you to keep the equipment as long as you stop paying for monitoring. Before you finalize your cancellation, ask the ADT representative: "Do I need to return the equipment, or can I keep it after cancellation?" Get the answer in writing via email so you have proof of what ADT told you. If return is required, ask for a prepaid return shipping label or the address where you should mail the equipment. Keep the tracking number from your return shipment as proof that you returned the equipment on time.

Canceling your autopay method and final payment

After you cancel service, log into the ADT mobile app or contact ADT to remove your credit card or bank account from autopay. This prevents accidental charges if ADT mistakenly continues billing you. Once your final bill arrives and you have verified the amount and charges, you can pay the final balance in full if you owe one. If ADT owes you a refund, note the expected refund date in your records and follow up if it does not arrive within 45 days. If you do not receive a refund you are owed, you can dispute the charge with your credit card company or file a complaint with your state attorney general.

When to escalate your cancellation to regulators or legal action

In most cases, following the cancellation process in this guide will result in a smooth exit from your ADT contract, even if you owe an early termination fee. However, if ADT refuses to cancel your service, continues billing after cancellation, or disputes your cancellation request without valid reason, you have escalation options.

Filing a complaint with your state attorney general

Your state attorney general's office investigates complaints against companies that violate state consumer protection laws. If ADT refuses to cancel your service, continues billing after you requested cancellation, or charges you an early termination fee that violates your state's law, you can file a formal complaint with your state attorney general. Most states allow you to file complaints online through the attorney general's website. In your complaint, include your account number, the date you requested cancellation, copies of your written cancellation request and any confirmation numbers, and an explanation of what ADT did wrong. The attorney general's office will send a formal inquiry to ADT, and in many cases, ADT will comply with cancellation or dispute resolution rather than face regulatory investigation. This escalation costs you nothing and often resolves disputes that customer service could not or would not resolve.

Disputing charges with your credit card company or bank

If ADT continues billing you after your cancellation date and you paid with a credit card, you can dispute the charges directly with your credit card company. Call the number on the back of your card and explain that you requested cancellation in writing on a specific date (provide your confirmation number and email timestamp), and ADT continued billing you anyway. Your credit card company will open a dispute and investigate ADT's claims. If you have written proof of your cancellation request and ADT's continued charges, you will almost certainly win the dispute and receive a credit back to your card. This process typically takes 30 to 60 days, but it costs you nothing and does not require hiring an attorney. If you paid by bank account transfer, your bank offers similar dispute rights called a chargeback.

When to hire a consumer attorney

If ADT owes you a refund exceeding $500, improperly charged you an early termination fee that violates your state's law, or continues billing you despite written cancellation requests, you may want to hire a consumer attorney. Many consumer attorneys work on contingency, meaning they take a percentage of your recovery and charge you nothing upfront if your case does not succeed. Search for "consumer attorney" or "telecom attorney" in your state combined with "free consultation" to find local lawyers who handle ADT disputes. In your consultation, bring your contract, all correspondence about cancellation, your billing statements, and your cancellation confirmation. The attorney can review your case quickly and tell you whether you have a viable claim. If ADT's violation is clear and the amount at stake is substantial, an attorney letter often prompts ADT to settle rather than litigate.

Cancellation checklist and key documents to save

Use this checklist to track your cancellation progress and ensure you complete every required step.

How tocancel helps you cancel ADT security with confidence

Canceling a locked-in security contract can feel like an uphill battle, especially if you are unsure of your rights or worried about hidden fees. Tocancel has helped thousands of consumers navigate contract cancellations across dozens of service categories, including alarm monitoring, internet, phone, and subscription services. We provide clear, step-by-step guidance on how to cancel, explain the consumer laws that protect you, and show you how to document your cancellation so disputes are resolved in your favor. Our advisors understand the tactics companies like ADT use to delay cancellation or impose fees they cannot legally charge, and we help you counter those tactics with confidence and clarity. Whether you are canceling because you are relocating, found a better rate, or are simply unhappy with service quality, Tocancel's goal is to help you exit your contract quickly, keep all the money you deserve, and avoid surprise charges. Visit Tocancel.com to explore more cancellation guides and access our cancellation templates, demand letters, and dispute support tools designed to give you the upper hand when dealing with service providers.

Summary and next steps

Canceling ADT Security requires following a specific process: gather your contract, call customer service, request written confirmation, submit a written cancellation letter if required, and monitor your final bill for accuracy. Early termination fees are common but may be negotiable or unenforceable if ADT failed to clearly disclose them or if you have grounds to dispute the charge based on poor service. Your consumer rights under federal law (the FTC Act and TCPA) and your state's consumer protection laws protect you from unfair cancellation practices and continued billing after you cancel. Document every step of your cancellation, save all correspondence, and do not hesitate to escalate your complaint to your state attorney general or credit card company if ADT refuses to honor your cancellation request. The investment of a few hours to follow this process correctly will save you hundreds of dollars in unwanted charges and months of frustration. Tocancel.com has guided thousands of consumers through security contract cancellations and other service terminations, and we are here to support your cancellation journey every step of the way.

ADT customer service contact information

Phone: 1-800-238-2727 (1-800-ADT-ASAP) or 1-888-392-2039

Mailing address for written cancellation requests: contact ADT customer service by phone to obtain the correct mailing address for your region, as addresses vary by location and account type.

Email: check your account dashboard or final billing statement for the email address where you can submit written cancellation requests.