Self-Insured Retention (SIR)

Overview

A Self-Insured Retention (SIR) is a specified amount of money that the policyholder must pay on a claim before the insurance company's coverage activates. Unlike a deductible, where the insurer typically manages the claim from the start and recovers the deductible amount later, an SIR requires the insured to handle and fund the claim independently until the retention amount is exhausted.

How It Works

With an SIR, the insured is essentially self-insuring for the first layer of loss. The insurer has no obligation — not even the duty to defend — until the SIR is fully paid. Once the retention is met, the insurance policy responds as if it were a first-dollar policy up to its limits.

For example, if a policy has a $100,000 SIR and a $1,000,000 limit, the insured pays the first $100,000 of any claim (including legal defense costs in most cases). Once $100,000 is spent, the insurer takes over and pays up to $1,000,000 above the SIR.

Key characteristics that distinguish SIRs from deductibles:

• Duty to defend: With a deductible, the insurer typically defends the claim from day one. With an SIR, the insured must manage and fund defense until the SIR is exhausted.
• Policy limits: Deductibles are often part of or erode the policy limit. SIRs sit below the policy limit — the full limit applies above the SIR.
• Claims handling: The insured handles claims within the SIR layer, which requires internal resources or hiring outside counsel.
• Financial qualification: Insurers often require proof of financial ability to fund the SIR.

Compliance Relevance

SIRs create significant compliance concerns that go beyond simple deductible analysis:

• Effective coverage gap: If a vendor cannot fund their SIR, the insurance policy never activates. This can leave a certificate holder exposed despite a compliant-looking COI.
• Additional Insured impact: An Additional Insured may not receive defense coverage until the Named Insured's SIR is exhausted, creating a gap where the Additional Insured must fund its own defense.
• Umbrella/excess complications: Umbrella policies may not drop down to cover an unmet SIR, depending on policy language.
• Contract requirements: Many contracts prohibit SIRs above a certain threshold or require SIRs to be disclosed.

Example

A property owner requires a janitorial company to carry $1,000,000 in General Liability. The janitorial company's policy has a $250,000 SIR. When a visitor slips on a wet floor and sues both the vendor and the property owner, the janitorial company must pay the first $250,000 in defense and settlement costs before the insurer responds. If the company lacks the funds, the property owner — as Additional Insured — may receive no coverage at all until the SIR is met.