Self-Insurance Groups
The Office of Self-Insurance Plans (OSIP) authorizes qualified employers to provide their own coverage for workers' compensation liabilities. Small and medium-sized businesses have the option of joining with others in the same industry to self-insure their workers' compensation liability as a group. All Self-Insurance Groups (SIGs) must be approved by OSIP and are required to post a security deposit covering their actuarial determined liabilities. California has one of the largest self-insurance programs in the nation and has some of the strongest regulations designed to ensure the system protects both employers and employees.
SIG Self-Insurance by the Numbers - 2024
$8.8 Billion total self-insured payroll
241,289 CA Workers covered by self-insurance
23 CA Groups are active self-insurers
1,903 CA Group members are active self-insurers
$213 Million Estimated Claims Reserves (EFL)
$127 Million Medical and Indemnity payments
5,226 Open Workers’ Compensation cases
Private Group Master Employer Self-Insurance Entry Prerequisites
Current regulatory financial requirements for an organization wanting entry into self-insurance are:
CCR § 15484(e) requires that each group self‐insurer needs to have enough income from group members to annually fund the following:
- 1.5 times the group self‐insurer's three‐year average total benefits paid as reported on their most recent Self‐Insurer's Annual Report;
- The expected administrative expenses needed for the group self‐insurer's daily operations during the current calendar year;
- The continued posting of the required security deposit; and
- Any additional amount determined by the Chief to ensure adequate funding of the group self‐insurer.
Private Group Self-Insurance Application Process
Here is what is needed for a private employer Self-Insurance application:
COMPLETE PRIVATE GROUP MASTER APPLICATION CHECKLIST:
| Form # | Description | Sealed/Notarized? |
|---|---|---|
| S - 1 | Group Master Application for Certificate of Consent to Self-Insure | No |
| S - 3 | Corporate Resolution (One time, master only) | No |
| S - 4 | Indemnity Agreement and Power of Attorney | No |
| S - 5 | Agreement of Assumption and Guarantee of Workers’ Compensation Liabilities for Group and Affiliate Members (One time, master only) | No |
| S - 6 | Agreement and Undertaking for Security Deposit (One time, master only) | No |
| California Certificate of Status | ||
| Feasibility Study | ||
| $1,000 Filing Fee Check for Master Certificate. |
COMPLETE PRIVATE GROUP MEMBER APPLICATION CHECKLIST:
| Form # | Description | Sealed/Notarized? |
|---|---|---|
| S-2A (Interim) | Group Affiliate Member Interim Application | No |
| S-2B (Permanent) | Application for Affiliate Certificate of Consent to Self-Insure as a Member of a Group Self-Insurer | No |
| S - 4 | Indemnity Agreement and Power of Attorney | No |
$500 for Each Member. |
Private Group Self-Insurance Yearly Maintenance
Here are the yearly requirements needed to maintain Self-Insured status. The table below shows what is due, the due date, and how to submit.
Per §15203.8, the employer must contact their OSIP analyst within 30 days of a change in name, organizational structure, or business structure. If you do not know your OSIP analyst, please call OSIP headquarters at (916) 464-7000.
| What is Due | Due Date | How to Submit | |
|---|---|---|---|
| Annual Report | March 1 | https://efiling.dir.ca.gov/OSIPO/ | |
| Unaudited Financial Statements | March 1 | https://efiling.dir.ca.gov/OSIPO/ | |
The budget for the current year together with:
|
March 1 | Send to OSIP via mail or email your OSIP analyst.
If you do not know your OSIP analyst, please call OSIP headquarters at (916) 464-7000. |
|
| Actuarial Study & Summary | April 15 | ||
| Audited Financial Statements | July 1 | https://efiling.dir.ca.gov/OSIPO/ | |
| Security Deposit | 30 Days From Notice of Security Deposit Demand Letter (July 1) | You may post a surety bond, letter of credit, cash, securities, or any combination of these. | |
| License Assessment Fee | December 31 |
Roster of self-insured groups and their affiliate members
OSIP SIG Aggregate Statistics
- Annual Aggregate Group Totals 2024
- Annual Aggregate Group Totals 2023
- Annual Aggregate Group Totals 2022
- Annual Aggregate Group Totals 2021
- Annual Aggregate Group Totals 2020
- Annual Aggregate Group Totals 2019
- Annual Aggregate Group Totals 2018
- Annual Aggregate Group Totals 2017
- Annual Aggregate Group Totals 2016
- Annual Aggregate Group Totals 2015
- Annual Aggregate Group Totals 2014
- Annual Aggregate Group Totals 2012
- Annual Aggregate Group Totals 2011
- Annual Aggregate Group Totals 2010
May 2026