Customer Service

Customer Service representatives are available to assist you weekdays from 8:30 a.m. to 4:30 p.m. EST at (800) 424-2378 or (908) 439-2200, ext. 5742. Our automated telephone system allows you to leave a voice mail message after-hours. You may also e-mail your questions/requests to or fax them to (908) 439-3296.

Customer ServiceCustomer Service FAQs

How can I place an order with A.M. Best?
You may purchase many of our products online using a credit card through our secure purchase pages or by contacting Customer Service. Visit our Products & Service directory to access our entire product line. You may also fax your signed order/renewal to (908) 439-3296 or call Customer Service at (800) 424-2378 or (908) 439-2200, ext. 5742.

How do I submit a name or address change?
You may e-mail your changes to, call Customer Service at (800) 424-2378 or (908) 439-2200, ext. 5742, or fax them to (908) 439-3296. Whether your changes include those on an individual address/name change or a change for the entire company, please provide the following information when submitting your request: account number, complete former address and complete new address. Note: Street address is required for delivery of product shipments.

Where can I obtain a Form W-9?

  • Form W-9 - A.M. Best Information Services (for Product payments)
  • Form W-9 - A.M. Best Rating Services (for Rating Service Fee payments)

Billing Information

What is your credit policy for new customers?
Prepayment is required for customers without an established A.M. Best account. Companies located outside the U.S. may be required to prepay. Prepayment may be made by supplying credit card (American Express, Discover, MasterCard, Visa) information or by including a check with your order. Credit applications are available for purchases over $500. You may contact Customer Service at (800) 424-2378 or (908) 439-2200, ext. 5742.

What is your billing process and terms of payment?
Invoices are generated when service begins or the product is shipped. Payment term is net 30 days. All past-due invoices are subject to a finance charge of 1.5% per month, which is equivalent to an annual percentage rate of 18%.

How can I issue payments to A.M. Best for outstanding invoices?
Payments may be made via check, credit card or electronic funds transfer. Please include your account or invoice numbers with your remittance advice. Payments should be sent to the remittance address on your billing invoice or statement. You may obtain more information by e-mailing or calling Customer Service at (800) 424-2378 or (908) 439-2200, ext. 5742.

How do you ship your products?
A.M. Best uses Federal Express or UPS standard services for all domestic shipments. Expedited delivery is available for an additional cost. Call Customer Service at (800) 424-2378 or (908) 439-2200, ext. 5742, for details.

What are your return policies?
Requests to return products should be made within thirty (30) days of shipment and are subject to approval by A.M. Best (AMB). Before returning any publication, contact AMB at (800) 424-2378 or (908) 439-2200, ext. 5742, to obtain a Return Material Authorization (RMA) Number. We will send you a RMA label that must be affixed to the return package. Ship returned publications via a trackable carrier (UPS, FedEx) or through the postal service with "Return Receipt Requested" in order to properly document the transaction. Please state the reason for the return and pertinent billing or shipping information (account number, invoice number, RMA Number, shipping label, etc.) so that we may properly credit your account. Packages must include all of the original contents in order to qualify for a credit/refund. Call Customer Service at (908) 439-2200, ext. 5742, if you have questions.

Return Address:
A.M. Best Company, Inc.
Ambest Road
Oldwick, New Jersey 08858-0700

Non-approved returns, or those without RMA Numbers may be refused.

Lost shipments may be replaced, subject to a replacement charge. Call Customer Service for information.

If you fail to advise AMB of your correct address which results in the publication being returned, you may be subject to a re-ship charge.

Damaged publications will be replaced at no additional charge. Contact Customer Service immediately at (800) 424-2378 or (908) 439-2200, ext. 5742, to arrange for the pick up, inspection and replacement.

CD-ROM purchases are subject to the terms and conditions governing the licensing of the product. Contact Customer Service for more information.

Purchases of reports, information, etc. downloaded or printed from the AMB Web site or delivered via e-mail is considered a nonreturnable, nonrefundable transaction.

Customized products (Best's Rating Reports, reprints, CD-ROMs, tapes, studies) are non-returnable/non-refundable.

Products sold as supplement services must be cancelled in writing prior to receipt of first supplement. Thereafter, a prorated invoice will be due and payable for the quantity received to date. Periodicals will be prorated for the issues already received.

Standing order purchases are on automatic renewal. If you would like to make changes to a standing order, please notify AMB in writing to Customer Service prior to receipt of the first shipment, or upon invoicing.

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Consumer Information