Log in to your ADT account to pay your bill online
ADT's online bill payment system is accessed through the ADT customer portal at www.adt.com. On the homepage, look for a "Log In" button — usually in the top right corner — and enter your account number and password. If you do not have a password yet, you can create one by selecting "Register" or "Forgot Password" on the same login page.
Once you are logged in, your account dashboard shows your current balance, due date, and payment history. To pay your bill, select "Make a Payment" or "Pay Now" — the exact wording varies depending on which version of the portal you see. You can then choose to pay the full balance or a partial amount, and select your payment method (debit card, credit card, or bank account).
The payment typically processes immediately for card payments and within one business day for bank transfers. ADT will send you a confirmation email with a receipt number and the transaction details.
Key Takeaways
- Log in at www.adt.com using your account number and password to access the payment portal.
- You can pay by debit card, credit card, or bank account transfer through the online portal.
- Card payments process right away; bank transfers usually take one business day.
- If you forget your password, use the "Forgot Password" link on the login page to reset it without calling customer service.
- You can set up automatic recurring payments so your bill is paid on the same date each month.
What to do if you cannot remember your account number
Your account number appears on your paper bill, in the top left or right corner, and usually starts with a digit followed by letters. If you do not have a recent bill, you can find it by entering your phone number on the ADT login page — the system will display your account number so you can proceed with registration or password recovery.
If that does not work, call ADT customer service at 1-800-ADT-ASAP (1-800-238-2727). A representative can confirm your identity using your service address and phone number, then provide your account number or reset your password over the phone.
Setting up automatic payments to avoid missed due dates
Once you are logged in, look for "Manage Payments," "Billing Settings," or "Auto Pay" in the account menu. Select the option to set up automatic recurring payments. You will choose a payment date (usually between the 1st and 28th of each month), your payment method, and the amount — either your full bill or a fixed amount.
Automatic payments remove the risk of forgetting a due date and incurring a late fee. ADT will send you a reminder email a few days before each automatic payment is scheduled. You can pause or cancel automatic payments at any time through the same menu, though you will then need to pay manually again.
Paying by phone or mail if you do not want to use the online portal
If you prefer not to log in online, you can pay by phone by calling 1-800-ADT-ASAP (1-800-238-2727). A representative will take your payment information over the phone. Phone payments are available 24 hours a day, 7 days a week, and the payment processes immediately.
You can also mail a check or money order to the address shown on your paper bill. Write your account number on the check and mail it to the payment address listed on your statement. Mail payments typically take 7 to 10 business days to post to your account, so send them well before your due date to avoid late fees.
Understanding what appears on your ADT bill
Your ADT bill lists your service address, account number, billing period, and the charges for that month. Most bills show a base monitoring fee, any equipment charges (for cameras, sensors, or other devices), taxes, and any promotional discounts. The due date is clearly marked, and late payment fees are listed separately if you have overdue charges.
If you see charges you do not recognize, log in to your account and review your service plan details, or call customer service to ask about specific line items. Some charges appear only once a year (like annual equipment fees) or vary month to month if you added or removed services.
Troubleshooting login problems and account access
If you enter your account number and password but the system says they are incorrect, first check that Caps Lock is off and that you are typing your password exactly as you created it. If you still cannot log in, use the "Forgot Password" link to reset it. You will receive an email with a reset link — check your spam folder if you do not see it within a few minutes.
If you are locked out of your account after multiple failed login attempts, wait 15 to 30 minutes before trying again, or call customer service to unlock it. If you registered for the portal but never received a confirmation email, check that you entered the correct email address, or call 1-800-ADT-ASAP to verify the email on file and resend the confirmation.
Frequently Asked Questions
Is there a fee to pay my bill online?
No. ADT does not charge a fee for paying through the online portal, by phone, or by automatic payment. You only pay your service charges and any applicable taxes. Mail payments are also free, though they take longer to process.
Can I see my payment history online?
Yes. Once you log in, your account dashboard shows a list of past payments, including the date, amount, and payment method. You can usually download or print this history for your records.
What happens if I pay late?
ADT typically charges a late fee if payment is not received by the due date shown on your bill. The amount varies by state and contract. If you are going to be late, call customer service to ask about a grace period or payment plan before the due date passes.
Can I change my due date?
Many ADT accounts allow you to change your due date through the online portal or by calling customer service. The new date usually takes effect on your next billing cycle. This is helpful if you want to align your ADT payment with other bills or your payday.
What should I do if I see a charge I did not authorize?
Log in and review your service plan to see what services are active. If you see a charge for a service you did not request, call customer service right away with the charge details. They can explain what it is for or remove it if it was added in error.