How to pay ADT online, by phone, or by mail

You can pay your ADT security bill through their online account portal, by phone, or by mailing a check. The fastest method is logging into your ADT account at adt.com and paying directly from the payment page — this usually posts within one business day. If you prefer to speak with someone, you can call ADT's customer service line and provide your account number and payment method over the phone. Mailing a check takes longer (typically 7 to 10 business days) but works if you don't have online or phone access.

Your bill arrives monthly and shows your service charges, any equipment fees, and the due date. ADT accepts credit cards, debit cards, and bank account transfers through their website. If you set up automatic payments, your bill withdraws on the same date each month, so you won't have to remember to pay manually.

Key Takeaways

  • You can pay ADT bills online at adt.com, by phone with a customer service representative, or by mailing a check to the address on your statement.
  • Online and phone payments usually post within one business day, while mailed checks take 7 to 10 business days to clear.
  • ADT accepts credit cards, debit cards, and bank account transfers for payment.
  • Setting up automatic payments ensures your bill is paid on the due date each month without manual action.
  • Your account number appears on your monthly bill and is required for phone payments.

Paying through your ADT online account

Log in to your ADT account at adt.com using your username and password. If you don't have an online account yet, you can create one by entering your phone number and account number (found on your bill). Once logged in, look for the "Pay Bill" or "Make a Payment" option in the account menu.

Select the amount you want to pay — you can pay the full balance due, a partial amount, or set up a recurring payment. Enter your payment method (credit card, debit card, or bank account information) and confirm the transaction. ADT will show you a confirmation number when ready, and the payment typically posts to your account within one business day.

Paying ADT by phone

Call ADT's customer service number, which appears on your monthly bill. Have your account number ready. A representative will ask for your account number and the amount you want to pay, then request your payment method — credit card, debit card, or bank account details.

The representative will confirm the payment amount and processing date before completing the transaction. Phone payments are processed the same day and usually post within one business day. Keep the confirmation number the representative provides in case you need to reference the payment later.

Paying ADT by mail

Write a check or money order for the amount due and include your account number on the check. Mail it to the address listed on your bill — this address is specific to your region and ensures the payment reaches the correct processing center.

Mailed payments take 7 to 10 business days to arrive and be processed, so send your check well before the due date to avoid late fees. Include only the check or money order; do not send cash through the mail. If you need to confirm receipt, keep a copy of the check or ask your bank for a cancelled check image once it clears.

Setting up automatic payments with ADT

Automatic payments remove the need to remember your due date each month. Log into your ADT account online and look for "Autopay," "Automatic Payment," or "Recurring Payment" in the account settings or billing section. Select your payment method (bank account or card) and the date you want the payment to occur each month.

ADT will withdraw the full amount due on that date automatically. You can change or cancel automatic payments anytime through your account settings. Even with autopay enabled, review your monthly bill to confirm the amount is correct and that the payment went through.

What to do if your ADT payment is late

If your payment doesn't arrive by the due date, ADT may charge a late fee. The amount varies depending on your service agreement. Contact ADT customer service as soon as possible to make a payment and ask about the late fee — some representatives can waive a single late fee if you have a good payment history.

If your service is at risk of disconnection, paying when ready by phone or online is the fastest way to restore your account. ADT typically allows a grace period of a few days after the due date before taking action, but don't rely on this — pay as soon as you realize the bill is overdue.

Payment methods ADT accepts

ADT accepts Visa, Mastercard, American Express, and Discover credit and debit cards through their website and phone line. You can also pay directly from your checking or savings account using your routing number and account number. Some locations may accept other payment methods, so check your bill or contact ADT if you have questions about a specific payment type.

ADT does not accept cash payments online or by phone. If you prefer to pay in cash, you may be able to visit a local payment center or use a third-party bill payment service, though this is less common. Call ADT to ask whether cash payments are an option in your area.

Frequently Asked Questions

How long does it take for an ADT payment to show up in my account?

Online and phone payments typically post within one business day. Mailed checks take 7 to 10 business days. If you pay after hours online, the payment may not process until the next business day. Check your account a day or two after paying to confirm the transaction went through.

Can I pay part of my ADT bill instead of the full amount?

Yes, you can make a partial payment online or by phone. However, the remaining balance will still be due by the due date, and you may be charged a late fee on the unpaid portion. If you're having trouble paying the full amount, contact ADT to discuss payment plans or other options.

What happens if I miss an ADT payment?

ADT will charge a late fee and may send you a notice. If the bill remains unpaid for 30 days or more, ADT may disconnect your service. Contact ADT when ready to make a payment and discuss your options if you're unable to pay the full amount.

Can I change my automatic payment date with ADT?

Yes, log into your ADT account and go to the autopay settings to change the payment date. The new date takes effect on your next billing cycle. If you need to change it before your next bill, contact ADT customer service for help.

Is there a fee to pay my ADT bill online?

No, ADT does not charge a fee for online or phone payments. Mailed checks are also free, though postage costs you a stamp. Avoid using third-party bill payment services, which may charge their own fees.