Mail Audit Help
This section provides helpful information on Safeco mail audit forms. For step-by-step guidance in completing your Safeco form, select a link below.
Instructions for Worker’s Compensation Mail
Instructions for General Liability Mail Audits
Q. What is a mail audit and why did I receive one?
A. Workers Compensation premiums are based on the payroll estimates you provide prior to your policy inception. We calculate your premium based on these estimates, as well as other classifications appropriate to your business operations.
At the end of the policy term, we’re required to adjust these estimates based on your actual payroll in these classifications during the policy period. We send you a mail audit form in order to collect these figures. We use this information to determine your new premium.
Q. The cover letter I received indicated that there are certain states that have special rules that may impact what I report. Could you please explain what this means?
A. Some states enable you to indicate deductions that will reduce your reportable amounts. See our State & Special Reporting Rules for more details.
Q. What happens if I don’t send back a completed mail audit?
A. We will estimate your premium, which could result in an increase of up to 150% of your original premium. An accurately completed mail audit form helps us charge the correct premium for your coverage.
Q. I lost my pre addressed envelope to mail my form, where do I mail my completed audit information?
A. The location to mail your completed audit form is:
Safeco Insurance Companies
ATTN: Premium Audit Processing
PO Box 515097
Los Angeles, CA 90051-9803
Learn More
We’re happy to help. Please contact your agent or the Premium Audit Processing Center at 1-800-422-6340.

