Data Submission

Data Submission is part of the Best's Client Portal which provides you with a highly secure and convenient web-based platform to communicate and collaborate with our company. Access the portal from

Log In to Data Submission on Best's Client Portal
  • Upload NAIC and OSFI filings to AM Best.
  • Access Rating Service Fee Invoice(s).

Information about Data Submission
Read about how to use Data Submission to submit your NAIC/OSFI statement filings online.

Register to Upload Filings
Take advantage of Data Submission by quickly registering, free of charge.

Access Quarterly Filings and Investment Forms
Submit quarterly statement and investment data through Data Submission on the Best's Client Portal.

Accessing the pages on constitutes the user’s agreement to our terms of use. Information collected via this Web site is protected by our privacy notice. Comments or concerns should be directed to our customer support services group. For other matters refer to our contact us page.