At a glance
Legal framework
Statute only for first-party claims. 215 ILCS 5/155 (“vexatious and unreasonable” delay or denial) is the exclusive extra-contractual remedy after Cramer v. Insurance Exchange Agency, 174 Ill. 2d 513 (1996). A common-law tort survives only in the third-party duty-to-settle context.
Can you sue directly?
Yes, but only as an add-on. You sue on the policy and plead § 155 for fees and the penalty. There is no private right of action under the Unfair Claims Practices provisions (215 ILCS 5/154.5–154.6), which the Department enforces.
Deadline
The underlying suit is a written-contract action: 10 years under 735 ILCS 5/13-206. In practice a shorter suit-limitation clause in the policy governs — commonly one year for first-party property. 215 ILCS 5/143.1 tolls any such clause from the date proof of loss is filed until the insurer denies. Section 155 has no separate period; it lives or dies with the action on the policy.
Before you file
None required. No notice letter, no cure period, no requirement to go to the Department first. The one structural condition is that a § 155 count cannot stand alone — it must ride on a live action on the policy.
What you can recover

Damages available in Illinois

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How to find one yourself, free

Phone referrals Monday to Friday, 9 a.m. to 3 p.m. The referral is free; say you were referred by the service to get the reduced first-half-hour rate. Illinois has no certified-specialist programme — the Supreme Court of Illinois does not recognise certification of legal specialties, and any outside certification cited in advertising must carry a disclaimer.

Before you sue

How often does your insurer actually pay?

Worth checking before you spend money on a lawyer. Two different measures exist, and they are not interchangeable — one is a real payment record, the other is a complaint count.

Health cover — real denial rates

Published, per insurer

Health insurers selling on the federal marketplace must report how many claims they received and how many they refused. The figures are public and free to inspect.

20%
Average denied, 2023
1%–54%
Range across 175 insurers

The spread is the point. Two insurers selling comparable cover in the same state can refuse wildly different shares of what they are billed for. Look your own up before you assume your refusal was routine.

Source: CMS Transparency in Coverage public use files, plan year 2023 experience. Self-reported by insurers and not audited. Covers federal-marketplace plans only — not employer cover, and not state-run marketplaces. Post-service claims only.

Home, auto & property

No payout rate is published

There is no free public figure showing what share of home or auto claims any named insurer pays. Insurers do report it to regulators, but in most states that filing is confidential. Any table you see online quoting payout percentages for property insurers is either a paid commercial product or an estimate.

What is public is the complaint index — how many confirmed complaints a company generates against its share of the market. 1.00 is average. 3.00 means three times the complaints its size would predict.

Complaint indexes are published by state insurance departments and compiled by the NAIC. Figures move with both the company’s complaints and the wider market’s.

These two numbers are not the same thing. A denial rate is the share of claims an insurer refused. A complaint index is how often customers complained relative to the company’s size. A low complaint index does not mean an insurer pays well, and a high one does not prove it refuses claims — it can reflect the kind of cover it sells or the customers it attracts. Neither figure says anything about whether your claim should have been paid.
The clock

What the insurer is required to do, and by when

Under 50 Ill. Adm. Code 919 the insurer must acknowledge a communication within 15 working days and, once liability is determined and the amount undisputed, affirm or deny and tender payment within 30 days. Delay letters are then required at fixed intervals — 40 calendar days for auto collision, 60 for third-party auto property damage, 75 from reporting for fire — each carrying the mandatory Notice of Availability of the Department of Insurance.

The thing most people miss

Illinois deleted its own bad-faith tort. The Supreme Court recognised first-party bad faith in Ledingham, then took it back in Cramer — so the worst an insurer faces for a cynical denial is fees plus a penalty capped at $60,000, decided by a judge rather than a jury.

Unsettled: The § 155 cap is ambiguously drafted — the statute allows “an amount not to exceed any one of the following” three figures, and commentators split on whether the court picks the largest or is confined to the smallest. The $60,000 ceiling is the safe working assumption.
Free first step

Complain to the regulator before you spend anything

A complaint to the Illinois Department of Insurance costs nothing, creates a written record, and sometimes moves a stalled claim on its own. It is not a substitute for legal advice and it does not pause any deadline — but there is rarely a reason not to do it first.

Where this comes from

Sources

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