Can I use a self-insured retention on a workers' compensation policy?

True SIR arrangements on workers' comp require a state-approved self-insurance license with strict financial qualification, typically available only to very large employers. Most mid-size businesses use a large-deductible workers' compensation program instead. Qualification thresholds vary significantly by state.

Deductible vs Self-Insured Retention

Q: Does a self-insured retention affect my additional insured obligations?

Yes. Most SIR policies require the named insured to exhaust the SIR before the carrier indemnifies anyone — including additional insureds. Some policies allow additional insureds to tender the SIR on behalf of the named insured, but this varies by carrier and policy form. Always review your contractual additional insured requirements against your SIR policy language before signing project contracts.

Q: Are defense costs inside or outside the SIR?

It depends on the policy. Defense outside the SIR means the carrier provides counsel from day one and defense costs do not erode the retention. Defense inside the SIR means the insured funds defense costs within the retention and those costs count toward exhausting it — shifting significantly more cost to the insured on litigated matters.

Q: Is a self-insured retention the same as being self-insured?

No. Being truly self-insured means carrying no insurance policy for a given line and funding all losses directly. An SIR is a layer within an insurance program — the company is covered above the retention by a licensed insurer. The SIR defines only the band of risk the company retains before insurance attaches.

Q: Will a large deductible or SIR affect my ability to get bonded or satisfy certificate requirements?

It can. Surety companies and project owners may not understand that coverage above the SIR is backed by a rated insurer. Working with a broker who can provide endorsements or supplemental documentation explaining the SIR structure is critical in bonded or contract-intensive industries like construction.

Q: What happens if I cannot fund the SIR after a large loss?

If the named insured cannot fund the SIR, the insurer generally has no obligation to step in below the retention. Under a large-deductible program, the insurer has already paid the claim and pursues reimbursement — the claimant's coverage is unaffected by the insured's failure to pay. This distinction matters significantly in insolvency situations.

A deductible is the amount a policyholder pays after a loss before the insurer pays the rest — but the insurer controls the claim from the start. A self-insured retention (SIR) is an amount the insured must exhaust with their own funds and management before the insurer's duty to defend or indemnify attaches at all. The SIR puts the insured in control; the deductible keeps the carrier in control.

Who this is for: Mid-size to large commercial policyholders, risk managers, and CFOs evaluating how to structure their general liability, umbrella, or professional liability programs to balance premium savings against retained risk.

TL;DR — Key Takeaways

With a deductible, the insurer pays the full claim and bills you back for the deductible amount — often impacting your credit or requiring collateral.
With an SIR, you pay and manage claims up to the retention amount yourself before the insurer steps in at all.
SIRs generally produce larger premium savings but require stronger cash flow, claims-handling infrastructure, and sometimes a fronting carrier arrangement.
Deductibles are more common on small-to-mid commercial accounts; SIRs appear most often on large GL, umbrella, and professional liability programs.
Both mechanisms shift risk back to the insured — but in fundamentally different ways that affect defense costs, collateral requirements, and coverage trigger timing.

What Is a Deductible in Commercial Insurance?

A deductible is a fixed dollar amount (or, less commonly, a percentage) that the named insured is responsible for paying on each covered claim. Critically, the insurer fronts the entire claim payment to the claimant and then seeks reimbursement from the insured for the deductible portion. Because the carrier is on the hook for the full loss from day one, it also retains full control of the defense — selecting counsel, setting reserves, and deciding settlement strategy.

Key mechanics: - The carrier pays first; the insured reimburses up to the deductible. - The insurer's duty to defend attaches immediately when a claim or suit is made. - Deductibles commonly appear on Commercial General Liability (CGL), Commercial Auto, and Property policies. - Carriers often require collateral (letter of credit, cash deposit) for deductible amounts above ~$25,000 per occurrence, because they bear the credit risk of reimbursement.

What Is a Self-Insured Retention (SIR)?

A self-insured retention is a defined dollar amount that the insured must pay — and typically manage — before the insurance policy even activates. Unlike a deductible, the insurer has no duty to defend or indemnify until the SIR is exhausted. The insured hires its own defense counsel, controls settlement negotiations up to the retention, and funds those payments directly.

Key mechanics: - The insured pays first; the insurer's obligations attach only after the SIR is fully exhausted. - The insured controls defense within the retention layer (subject to policy conditions). - SIRs are most common on large GL, Umbrella/Excess, D&O, EPL, and Professional Liability programs. - SIRs generally do not require the same collateral as large deductibles because the carrier never has to front money within the retention layer. - Many SIR policies require the insured to carry a minimum net worth or provide financial evidence of ability to fund the retention.

Deductible vs SIR: Side-by-Side Comparison

Feature	Deductible	Self-Insured Retention (SIR)
Who pays the claimant first?	Insurer (carrier fronts)	Insured (pays directly)
Carrier duty to defend	Attaches immediately	Attaches only after SIR exhausted
Defense counsel selection	Carrier's choice	Insured's choice (within retention)
Collateral requirement	Common above ~$25K	Generally none (or minimal)
Premium savings vs. standard	Moderate	Larger (higher risk transfer to insured)
Claims management burden	Low (carrier manages)	High (insured manages within SIR)
Typical policy line	CGL, Commercial Auto, Property	GL, Umbrella, D&O, EPL, Prof. Liability
Typical account size	Small to mid-market	Mid-market to large/complex
Coverage trigger timing	Policy triggers, then deductible collected	SIR must be paid before policy triggers
Cash flow impact	Lower per claim	Can be significant (large losses before insurer steps in)

How to Determine Whether a Deductible or SIR Is Right for Your Program (5 Steps)

Audit your loss history. Pull 5 years of claims data. If frequency is high but severity is low, a per-occurrence deductible may be more cost-effective. If you have occasional large claims, an SIR may save more premium while still capping your exposure.
Assess your cash flow and risk capital. An SIR requires you to fund claims out-of-pocket until they exceed the retention. Confirm you have a dedicated claims reserve fund or credit facility that can absorb the retention amount without straining operations.
Evaluate your internal claims-handling capability. Managing claims within an SIR means retaining legal counsel, establishing reserves, and making settlement decisions — tasks that require either an in-house risk management team or a Third-Party Administrator (TPA). If you lack this infrastructure, a deductible program is usually simpler.
Model the premium delta. Ask your broker to quote the same coverage with (a) a standard occurrence limit and no retention, (b) a $25K–$100K deductible, and (c) a $250K+ SIR. The premium savings must justify the added administrative cost, potential TPA fees, and retained risk.
Review collateral requirements with your CFO. Large deductible programs typically require a letter of credit (LOC) or funded trust that ties up capital. SIRs usually avoid this. Factor the cost of collateral — LOC fees commonly run 0.5%–1.5% of the face amount annually — into your total cost of risk.

Real-World Example: Mid-Size General Contractor in Texas

Scenario (illustrative — not a guarantee of specific outcomes):

A Texas general contractor with $40M in annual revenues and a strong safety program is renewing its Commercial General Liability policy with a $5M per-occurrence / $10M aggregate limit. The contractor has averaged two GL claims per year over five years, with an average severity of $85,000.

Structure	Annual Premium	Retention / Deductible	LOC Required	Estimated Total Annual Cost of Risk
No retention (first-dollar)	$180,000	$0	$0	~$350,000 (incl. expected losses)
$50,000 per-occ deductible	$128,000	$50,000/occ	$75,000 LOC (~$1,125/yr fee)	~$303,000
$250,000 SIR	$72,000	$250,000 SIR	None required	~$242,000 (if losses stay at historical avg.)

In this illustration, the SIR structure saves the contractor roughly $56,000 in annual premium relative to the deductible program. However, in a bad year where a single claim reaches $400,000, the contractor is fully responsible for the first $250,000 before the insurer contributes. This makes cash flow planning and a dedicated reserve account essential. The contractor retained a TPA at ~$18,000/year to manage SIR-layer claims, still netting significant savings.

This is a simplified illustrative scenario. Actual premiums depend on underwriting factors, carrier, jurisdiction, and claims history.

FAQ: Deductible vs Self-Insured Retention

Q: Does a self-insured retention affect my additional insured obligations? A: Yes, and this is a frequent contracting conflict. Most SIR policies require the insured to exhaust the SIR before the carrier indemnifies anyone — including additional insureds. Some policies grant the additional insured the right to tender the SIR on behalf of the named insured in certain circumstances, but this varies by carrier and policy form. Always review your contractual additional insured requirements against your SIR policy language before signing project contracts.

Q: Are defense costs inside or outside the SIR? A: It depends on the policy. Some SIR policies are "defense outside the SIR," meaning the carrier provides defense counsel from day one and defense costs do not erode the retention (similar to a standard deductible). Others are "defense inside the SIR," meaning the insured funds defense costs within the retention and those costs count toward exhausting it. Defense inside the SIR is more common and shifts significantly more cost to the insured on litigated matters.

Q: Can I use an SIR on a workers' compensation policy? A: Large-deductible workers' compensation programs are the more common structure for mid-to-large employers (a statutory product in most states). True SIR arrangements on workers' comp require a state-approved self-insurance license, which involves strict financial qualification and usually applies to very large employers or groups. Most businesses use a large-deductible WC program rather than a true SIR. [verify state — qualification thresholds vary significantly by jurisdiction]

Q: How does an SIR interact with an umbrella or excess policy? A: Umbrella and excess policies typically require the underlying primary policy's limits to be fully exhausted before the umbrella attaches. If you have an SIR on your primary GL, the umbrella generally attaches only after both the SIR and the primary limit are exhausted. Some umbrella policies also include their own SIR (sometimes called a "retained limit"). Coordination between these layers is a common source of coverage disputes; review all policies together.

Q: Is an SIR the same as being self-insured? A: No. A company that is truly self-insured carries no insurance policy for a given line of coverage and funds all losses itself (often with regulatory approval, as in workers' comp). An SIR is a layer within an insurance program — the company is covered above the retention by a licensed insurer. The SIR simply defines the band of risk the company retains before insurance attaches.

Q: Will a large deductible or SIR hurt my ability to get bonded or satisfy certificate requirements? A: It can. Surety companies and project owners reviewing certificates may not accept a policy with a large SIR as evidence of adequate coverage if they do not understand that coverage above the SIR is backed by a rated insurer. Working with a broker who can provide endorsements or supplemental documentation explaining the SIR structure is critical in bonded or contract-intensive industries like construction.

Q: What happens if I can't fund the SIR after a large loss? A: If the named insured becomes insolvent or otherwise fails to fund the SIR, the insurer generally has no obligation to step in below the retention. This is a critical financial risk. In contrast, under a large-deductible program, the insurer has already paid the claim and pursues reimbursement — the coverage for the claimant is unaffected by the insured's failure to pay. This distinction matters enormously in insolvency situations.

Why Morrow for Deductible and SIR Program Structuring

Independent, multi-carrier access. Morrow places commercial GL, umbrella, and professional liability with multiple admitted and E&S carriers, giving us the ability to model deductible, SIR, and first-dollar options side by side — not just what one carrier offers.
Total cost of risk analysis. We don't just quote premium. We help clients model expected retained losses, TPA fees, collateral costs, and cash flow requirements so the decision between a deductible and an SIR is grounded in real numbers.
Contract compliance review. We review your project contracts and subcontractor agreements alongside your policy structure to flag SIR-related additional insured and certificate conflicts before they create claims disputes.
Claims advocacy within the retention. For clients with SIR programs, we help identify and vet Third-Party Administrators and can assist in claims triage so that SIR-layer losses are managed efficiently before insurer involvement.
Specialization in mid-market and contractor accounts. Construction, real estate, and professional services firms — industries where SIR programs are most commonly evaluated — are core segments of Morrow's book. We understand the bonding, contract, and cash flow dynamics unique to these trades. [Morrow to confirm specific carrier appointments and licensed states]

Get a Quote or Program Review

Ready to evaluate whether a deductible or SIR structure makes sense for your business? Request a program review from Morrow and we'll model both options against your actual loss history.

Trust strip: Morrow (Afthonea Inc., DBA Morrow) is an independent commercial insurance agency. [Morrow to confirm: licensed states, NPN, carrier appointments, and review platform links.]

Author: [Morrow to confirm — e.g., a licensed P&C broker or named risk advisor on staff with credentials such as CPCU, CIC, or ARM] Published: June 2026 Last updated: June 2026

Sources: - Insurance Services Office (ISO) Commercial General Liability policy forms and endorsements - National Association of Insurance Commissioners (NAIC) — large deductible and self-insurance guidance - Insurance Information Institute (III) — risk retention and self-insurance backgrounders - Risk and Insurance Management Society (RIMS) — SIR program design resources - State Department of Insurance filings and self-insurance qualification requirements [verify state for specific thresholds] - Internal Revenue Service (IRS) — tax treatment of self-insured arrangements (Rev. Rul. 2008-8 and related guidance)