Self Insured Workers Compensation/Excess and Surplus Insurance

What is Self Insured Workers Compensation/Excess and Surplus?

Self-insured workers compensation with excess and surplus (E&S) coverage is a specialized insurance solution designed for businesses that choose to self-fund their workers compensation claims up to a certain limit, while securing excess insurance to protect against catastrophic losses. This approach allows employers to manage claims internally but still hedge against large or unexpected liability exposures. E&S policies are typically sourced from non-admitted carriers that offer flexible underwriting for unique or higher-risk operations, such as construction contractors, manufacturing firms, or transportation operators. These policies are especially valuable when traditional markets decline coverage due to unusual risk factors or claims history.

Who Needs It

This type of coverage is often used by mid-sized to large organizations with stable financials and robust risk management practices. Common buyers include clubs, municipalities, staffing agencies, and national retailers who have the resources to self-insure but want protection against high-severity workplace injuries. For example, a logistics company might self-insure day-to-day workers comp claims but use excess coverage for rare severe incidents, such as a warehouse accident resulting in long-term disability.

What it Typically Covers

Excess workers compensation insurance provides coverage once the employer’s self-insured retention (SIR) has been exceeded. It typically includes:
  • Medical expenses related to work-related injuries or illnesses
  • Lost wages and disability benefits
  • Death benefits for employee fatalities
  • Employer liability protection for high-cost claims
Coverage is usually structured with a per-claim and aggregate cap, depending on the employer’s risk profile and industry exposures. For more insight into structuring your workers comp strategy, see Fortify Your Workers’ Comp Strategy Against Major Claims.

Common Exclusions or Limitations

While excess workers comp offers broad protection, some exclusions may apply. Common limitations include:
  • Injuries to independent contractors or volunteers
  • Claims outside of the approved jurisdiction
  • Occupational diseases not recognized by state law
  • Intentional acts or gross negligence
These exclusions vary by carrier and state. It’s important to review with your insurance agent to understand specific policy terms.

Factors That Influence Cost

Several factors affect the cost of excess workers compensation insurance, including:
  • Industry risk classification and job-site hazards
  • Historical claims experience and loss trends
  • Payroll size and number of employees
  • Chosen self-insured retention level
  • Risk management protocols in place
Manufacturing operations, for example, may face higher premiums due to equipment-related exposures, while administrative organizations may pay less due to lower injury risks. To explore underwriting considerations and other liability policies, refer to Workers' Compensation Insurance Overview.

Proof of Insurance & Compliance

Although self-insured employers manage claims internally, proof of excess coverage is often required by state regulators or third-party contracts. Employers typically must file documentation with their state’s workers compensation board and maintain a surety bond or other financial guarantee. Some sectors, such as transportation or manufacturing, may also need to show certificates of coverage to vendors, clients, or facility managers. For additional background on liability coverage structure, visit Understanding Employers Liability and Excess Liability Policies.

How to Get a Quote

Getting a quote for self-insured workers compensation with excess and surplus coverage starts with a risk evaluation. You’ll need to provide loss history, payroll records, and details on safety procedures. Coverage terms are often customized based on your risk profile, industry, and retention preferences. If you're unsure how to proceed, it's best to review with your insurance agent who can help you compare carriers and policy structures.

Frequently Asked Questions

Is excess workers compensation mandatory for self-insured employers?

No, but many jurisdictions require proof of financial backing, and excess coverage provides crucial protection against large claims.

Can small businesses use this type of insurance?

Generally, it's best suited for mid-sized to large organizations with sufficient financial reserves and risk management systems.

What is the difference between excess and umbrella insurance?

Excess workers comp specifically covers claims above your self-insured retention for employee injuries, while umbrella insurance extends limits across multiple liability policies.

Do I need to report claims to the excess carrier?

Yes, most policies require prompt notification of claims that may exceed the SIR threshold.

How is the self-insured retention (SIR) determined?

SIR levels are negotiated based on your organization’s risk tolerance, claims history, and financial capacity.

Still have questions? Talk to a local insurance expert.

Partners, Programs & Market Access


We maintain relationships with nationally recognized and specialty-focused insurance providers that actively underwrite this class of business. Our network includes both admitted and non-admitted markets, allowing us to match risks—from straightforward accounts to more complex or hard-to-place exposures—with appropriate underwriting partners.


Program availability, coverage terms, and underwriting appetite can vary based on operations, location, and loss history, so access to multiple markets is key to securing the right fit. This approach helps ensure broader coverage options and more competitive placement across a range of risk profiles.



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