Central Maine Power Payment, Login, Customer Service

Updated February 24, 2021 – Below you will find the key information you need as a Central Maine Power (CMP) customer to access your account online, make payments, and reach customer service for further assistance.

Online Account Access

• Log in here to make a payment and manage your account. (You can also pay without logging in.)

Customer Service – Help & Pay By Phone

• The Central Maine Power customer service phone number for payments is 800-750-4000.

Payment Address

Central Maine Power Company
PO Box 847810
Boston, MA 02284-7810

In Person Payments

• You can also pay your CMP bill at many local Walmart stores and other authorized payment agencies. Go here for a list.