Loss-Sensitive Insurance Programs, Explained
A loss-sensitive program ties what you ultimately pay to the losses you actually have. Instead of a fixed premium that rewards the carrier in a good year, you retain part of the risk — through a deductible, a retrospective adjustment, a self-insured retention, or ownership of a captive — and keep the savings when your losses are controlled. This guide explains each structure, how it is priced, and when it fits.
The structures side by side
| Structure | What you pay | Who handles claims | Collateral | Typical fit |
|---|---|---|---|---|
| Guaranteed cost | Fixed premium (payroll or sales audited) | Carrier | None | Any size; unpredictable or new operations |
| Dividend plan | Fixed premium, with a possible dividend if losses are low | Carrier | None | Good-loss accounts that want upside without downside |
| Large deductible | Lower fixed premium + reimbursement of each claim up to the deductible | Carrier | Usually required (letter of credit, cash, or trust) | $250K+ premium with stable, controllable losses |
| Retrospective rating | Deposit premium, adjusted after the term to incurred losses within a min/max | Carrier | Sometimes | Accounts that expect a good year but want a capped downside |
| Self-insured retention (SIR) | Premium for the layer above the retention; you pay and adjust claims below it | You / a TPA | Varies; state approval for WC self-insurance | Larger, sophisticated risk-management operations |
| Group captive | Premium into a company you co-own; unused loss fund and investment income return as dividends | Captive's TPA | Capital contribution and/or letter of credit | $250K+ premium, better-than-average losses, long-term view |
How the pricing actually works
Guaranteed cost
Premium = exposure (payroll, sales, vehicles) × rate × experience mod, plus or minus schedule credits. It is trued up at audit, but the rate itself never changes because of this year's claims. Simple, and for a large account often the most expensive choice in a good year.
Large deductible
The carrier prices the policy as if it had a deductible of, say, $250,000 per occurrence, so the premium drops. You then reimburse the carrier for each claim up to the deductible (with an aggregate cap negotiated in advance). Because the carrier is fronting your money, it asks for collateral — most often a letter of credit — sized to expected losses in the deductible layer. The carrier still adjusts every claim, which is why claims advocacy matters: every reserve they set is your money.
Retrospective rating
You pay a deposit premium, and 6, 18, and 30 months after the policy ends the carrier recalculates it from incurred losses using a formula with a minimum and maximum. A clean year refunds premium; a bad one bills more, but never past the maximum. Retros fit accounts that are confident in their controls but want a hard ceiling.
Self-insured retention
Below the retention you are the insurer: you (usually through a third-party administrator) investigate, reserve, and pay claims, and the policy responds only above the SIR. For workers' compensation this requires state approval and a security deposit; for liability lines it is a policy structure. It gives maximum control and cash flow, and demands real internal risk management.
Group captive
Members pay premium into a licensed insurance company they own. Each member's premium funds its own loss layer, a shared layer absorbs larger claims, and reinsurance caps catastrophes. What your loss fund does not spend, plus the investment income on it, returns to you. There is a capital commitment and the possibility of assessments in a bad year. Full captive explainer →
Questions we ask before recommending a structure
- What do five years of losses look like when stratified — many small claims, or a few large ones? Frequency-driven accounts benefit most from retaining the working layer.
- How volatile is the exposure? A fleet doubling in size or a new state of operation changes the answer.
- Can the business post collateral without straining working capital, and at what cost?
- Is there a real safety and return-to-work program, or only a binder on a shelf?
- Who will manage claims? Loss-sensitive programs only pay off if someone challenges reserves and closes claims.
- What is the experience mod today, and what will it be next year? A retained-loss program with a falling mod compounds savings; with a rising mod it compounds cost.
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FAQ
What is the difference between a large deductible and a self-insured retention?
With a deductible, the carrier adjusts and pays the claim, then bills you back; the policy limit includes the deductible layer. With an SIR, you pay and adjust claims yourself below the retention, and the policy sits above it. Deductibles are simpler; SIRs give more control and usually require a TPA.
How much collateral does a large deductible plan require?
Carriers size collateral to the losses they expect to pay in your deductible layer, often adjusted annually as claims develop. It is commonly posted as an irrevocable letter of credit. The cost and availability of that LOC is part of the total-cost-of-risk math, not an afterthought.
Can a loss-sensitive program cost more than guaranteed cost?
Yes. In a bad claims year, a deductible or retro plan can exceed what guaranteed cost would have charged, which is why every structure is modeled against your losses and your cash flow before it is recommended.
Does my experience mod still apply with a large deductible?
For workers' compensation, yes — the mod continues to be calculated from your full losses, and it affects both the premium and how carriers view the account. Managing the mod is part of managing the program.
When does a group captive make sense instead of a deductible plan?
Captives suit accounts of roughly $250K+ in premium with consistently better-than-average losses and a multi-year commitment; in exchange they return underwriting profit and investment income that a deductible plan leaves with the carrier. A feasibility review compares both against your data.
General information from Focus West Insurance Solutions (CA Lic. #0M32679); not coverage, legal, tax, or financial advice. Deductible amounts, retro factors, collateral, and eligibility vary by carrier, state, and underwriting; loss-sensitive and captive programs involve retained risk and are not suitable for every business. Related: large & mid-market accounts · captive programs · X-Mod explained · glossary.