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SIR programs typically reduce premiums by 20-40% compared to traditional deductible policies. The insurer shifts more risk to you, which is reflected in lower premium payments. For well-managed fleets with strong safety records, the savings are substantial.
SIR requires significant cash reserves to cover claims within the retention amount. A $100,000 SIR means you pay the first $100,000 of every claim from your own funds. Traditional deductibles are much smaller ($1,000-$10,000), requiring less capital.
SIR gives you control over claims handling within the retention amount. You choose the defense attorneys, control settlements, and manage costs. Traditional policies hand claims control to the insurer from the first dollar.
SIR exposes you to more financial risk per claim. A bad year with multiple large claims can strain cash reserves. Traditional deductible policies protect cash flow at the cost of higher premiums.
SIR makes financial sense for fleets with 50+ trucks and $500,000+ in reserves. Smaller fleets cannot absorb the per-claim exposure. Traditional deductibles are appropriate for any fleet size.
| Category | Self-Insured Retention (SIR) | Traditional Deductible | Leader |
|---|---|---|---|
| Premium Savings | 88 | 70 | Self-Insured Retention (SIR) |
| Cash Flow Impact | 60 | 88 | Traditional Deductible |
| Claims Control | 85 | 65 | Self-Insured Retention (SIR) |
| Risk Exposure | 55 | 85 | Traditional Deductible |
| Fleet Size Suitability | 75 | 88 | Traditional Deductible |
| Overall Average | 73 | 79 | Traditional Deductible |
Traditional deductible insurance wins for most trucking operations because it provides predictable costs and protects cash flow. The premium is higher but the financial risk per claim is lower.
SIR wins for large, well-capitalized fleets with strong safety programs that consistently generate fewer and smaller claims than average. The premium savings compound significantly at scale — a 100-truck fleet saving 30% on premiums recovers $200,000+ annually.
Fleets under 50 trucks: traditional deductible. Fleets over 50 trucks with strong safety: evaluate SIR with an experienced insurance broker.
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Published March 25, 2026