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AEP values its relationships with our suppliers, energy providers, and other organizations looking to do business with us. See the document below for expectations on how we do business.

Looking for your business’s electric account?

Log in or register at your customer service website. National customers can access accounts at

Start Doing Business with AEP

We recognize that a strong, diverse supplier community is essential to economic vitality and look to conduct business with competitive, diverse suppliers. Learn more about becoming a supplier.

Existing Suppliers

Need to update information or have a question? We’re here for you. Select the appropriate option below.

Invoice Inquiries

If you have a question about an open invoice, outstanding payment, or need to submit a W-9, start here.

Ask about an invoice

Banking Changes

Need to make a change to your company banking information? No problem. We'll walk you through the steps.

Update your info

Supplier Questions

Have a question about doing business with us not related to registration or payment? Feel free to ask.

Ask a general question

CAA Inquiries

If you have a question or issue with CAA, start here to get assistance.

Ask about CAA

More from Accounts Payable

Explore our resources to find out how to receive timely, accurate invoice payments. Or learn how to take advantage of programs like accelerated payment to get paid faster or direct pay permits to self-assess sales tax.

Learn how to get paid

Getting the job done

EDI Transactions

Learn about using Electronic Data Interchange (EDI) for your business transactions with AEP.

Learn about EDI

Requests for Proposals

Find requests for proposals for our operating companies, as well as coal and fuel offers.

See RFPs

Economic Development

Make your site selection plans a reality with our award-winning Economic Development team.

Learn more

Products for sale

Surplus Buyers

If your company is interested in buying or bidding on equipment or materials being offered for sale, please register on web site.

Coal Combustion Products

Learn about types and uses of coal combustion products, including methods for recycling and marketing these materials.

Documents & Standards

Third Party Authorization

Business account holders can give 3rd parties authorization to access their energy usage information.

Warranty Terms

AEP has established minimum requirements for Transmission and Distribution material and equipment warranties.

Memorandum of Insurance

Find evidence and certificates of insurance coverage, including liability, property, and marine insurance.

Meter Barcodes

Our meter barcode system has become an industry standard. Learn the key to the code.

For additional support, contact AEP’s Supply Chain Solution Center at 833-493-0821.