If Allstate denied your insurance claim, underpaid it, or has been delaying a decision for months, Illinois law may give you the right to sue — and to recover far more than the original claim amount. Section 155 of the Illinois Insurance Code (215 ILCS 5/155) is the statute that makes this possible. It allows you to collect not just the benefits Allstate owes under the policy, but also a statutory penalty, attorney fees, consequential damages, and interest. These additional remedies become available when Allstate’s conduct crosses the line from a legitimate disagreement into something the law calls “vexatious and unreasonable.”
This page covers how that standard works, what specific Allstate claim-handling practices Illinois courts have found actionable, what the full financial recovery looks like, and how long you have to file. If you’re trying to figure out whether you have a case and whether it’s worth pursuing, this is the roadmap.
Can I sue Allstate for denying or underpaying my insurance claim?
Yes. An Allstate lawsuit in Illinois is, at its core, a breach of contract action. Your insurance policy is a contract: you paid premiums, Allstate agreed to pay covered losses. When Allstate refuses to honor that agreement — by denying a valid claim, paying less than the loss warrants, or dragging the process out indefinitely — it has breached the contract. You can sue to recover what you’re owed.
What makes Illinois law especially useful for policyholders is Section 155, which works as a penalty rule that attaches on top of the breach of contract claim. It is not a separate lawsuit. It is a remedy that allows you to recover costs above and beyond the policy amount whenever Allstate’s denial, underpayment, or delay was vexatious and unreasonable. The Illinois Supreme Court confirmed in Cramer v. Insurance Exchange Agency, 174 Ill. 2d 513 (1996), that Section 155 is the exclusive statutory remedy for first-party insurer misconduct. Illinois does not recognize a separate common-law bad faith tort for first-party claims. Section 155 is the path.
This also means that a Section 155 claim cannot stand on its own. The Illinois Appellate Court reinforced this in Moles v. Illinois Farmers Insurance Co., 2023 IL App (1st) 220853, holding that if the underlying contract claim is dismissed, the Section 155 claim goes with it. You need a valid policy dispute underneath. But if Allstate owes you money and is refusing to pay it, that’s exactly what you have.
Allstate is the second-largest homeowners insurer in the country and holds a 13.64% share of the Illinois homeowners market.
What counts as bad faith when Allstate handles a claim in Illinois?
The legal standard is whether Allstate’s conduct was “vexatious and unreasonable.” Courts evaluate this under a totality-of-the-circumstances test that weighs four factors, none of which is individually decisive. The test was set out in Buais v. Safeway Insurance Co., 275 Ill. App. 3d 587 (1st Dist. 1995), and reaffirmed in Mobil Oil Corp. v. Maryland Casualty Co., 288 Ill. App. 3d 743 (1st Dist. 1997).
The four factors are: (1) the insurer’s attitude toward the policyholder, (2) the adequacy of the insurer’s claim investigation, (3) whether the policyholder was forced to file suit to recover what was owed, and (4) whether the policyholder was deprived of the use of their property while the claim sat unresolved.
This is not an abstract test. It maps directly onto what happens during a real claim. If Allstate’s adjusters stopped returning calls, that speaks to attitude. If Allstate denied a roof claim without sending anyone to inspect it, that speaks to investigation adequacy. If you had to hire a lawyer and file a complaint just to get Allstate to engage with the claim, that’s factor three. And if your property sat damaged and unusable — you couldn’t rent it, live in it, or operate a business out of it — while Allstate delayed for months, that’s factor four.
Illinois also has specific regulatory timelines that govern how insurers must handle claims, set out in the Illinois Administrative Code at 50 Ill. Admin. Code Part 919. Insurers must acknowledge communications within 15 working days. They must begin a genuine investigation within 21 working days after notification of loss. And they must either offer payment within 30 days after affirming liability or provide a reasonable written explanation of the denial within 30 days after denying liability. Allstate’s failure to meet these benchmarks does not give you a private right of action on its own — the court in Scroggins v. Allstate Insurance Co., 74 Ill. App. 3d 1027 (1st Dist. 1979), specifically held that no direct private cause of action exists under Section 154.6 or Part 919. But those regulatory violations are admissible as evidence that feeds the vexatious and unreasonable finding. In Charter Properties v. Rockford Mutual Insurance Co., 2018 IL App (2d) 170637, the court affirmed Section 155 sanctions where the insurer’s failure to provide a written denial explanation violated the Part 919 requirements, and that regulatory breach was central evidence of vexatious conduct.
What has Allstate done that courts have found actionable?
Illinois courts have identified specific insurer conduct patterns that repeatedly support Section 155 sanctions. These are not hypothetical — they emerge from decades of reported decisions involving the same kinds of claim-handling failures that Allstate policyholders encounter.
Denying claims without conducting an adequate investigation is one of the most common. In McGee v. State Farm Fire & Casualty Co., 315 Ill. App. 3d 673 (2d Dist. 2000), the court held that allegations of inadequate investigation and refusal to negotiate in good faith despite evidence that damages exceeded policy limits stated a valid Section 155 claim. In Charter Properties, 2018 IL App (2d) 170637, the insurer’s adjuster missed multiple appointments to inspect the premises and ultimately failed to complete an inspection and estimate of damages before being removed from the file. The court found this conduct unreasonable and vexatious.
Issuing lowball settlement offers without a factual basis is another recognized pattern. Emerson v. American Bankers Insurance Co., 223 Ill. App. 3d 929 (5th Dist. 1992), identified a range of vexatious conduct. The list included making unreasonably low settlement offers, failing to evaluate claims objectively, interpreting policy provisions in an unreasonable manner, and using abusive or coercive tactics to force settlement for less than the claim was worth.
Withholding undisputed amounts as leverage is independently actionable. When an insurer concedes that it owes something but refuses to pay that portion in order to pressure the policyholder on the disputed balance, that withholding itself can be vexatious. In Millers Mutual Insurance Ass’n v. House, 286 Ill. App. 3d 378 (5th Dist. 1997), the court affirmed Section 155 sanctions where the insurer withheld a $40,000 undisputed portion of a settlement to force the insured to litigate. Part 919 reinforces this: once liability is affirmed, undisputed amounts must be paid within 30 days, and that obligation is not suspended by an appraisal demand.
Delay used as a settlement tactic is equally problematic. In Buais, the insurer’s 30-month refusal to evaluate an uncontested uninsured-motorist claim was held to be vexatious. In Green v. International Insurance Co., 238 Ill. App. 3d 929 (2d Dist. 1992), a four-year delay of the appraisal process through delay tactics on umpire selection amounted to vexatious conduct. And in Calcagno v. Personalcare Health Management, Inc., 207 Ill. App. 3d 493 (4th Dist. 1991), the court held that a Section 155 claim survives even if the insurer pays the claim in full before suit, as long as the pre-payment delay itself was vexatious.
Refusing to communicate with you — ignoring calls, failing to provide status updates, refusing to share a copy of the policy — also factors in. Mohr v. Dix Mutual County Fire Insurance Co., 143 Ill. App. 3d 989 (4th Dist. 1986), held that repeatedly ignoring the insured’s attempts to communicate and failure to investigate justified Section 155 relief. McGee included among its vexatious-conduct findings that the insurer refused to provide the policyholder with a copy of the policy and actively misled him about its contents.
The trial court has broad discretion in evaluating whether conduct rises to the vexatious and unreasonable threshold. That determination will not be overturned on appeal unless the trial court abused its discretion. Marcheschi v. Illinois Farmers Insurance Co., 298 Ill. App. 3d 306 (1st Dist. 1998). But a single regulatory misstep or procedural delay, without more, may not be enough. The court assesses the totality. Isolated mistakes caused by administrative error rather than a pattern of stonewalling often will not rise to vexatiousness. Mobil Oil, 288 Ill. App. 3d at 752.
What can I recover in an Allstate lawsuit beyond the original claim?
This is where the economics of an Allstate lawsuit become clear. If you win, you do not just recover the amount Allstate should have paid in the first place. The recovery stacks.
The first layer is the policy proceeds — the money Allstate owed under the contract. This is the base.
The second layer is the Section 155 statutory penalty. Under 215 ILCS 5/155(1), the penalty is capped at the lesser of three figures: (a) 60% of the amount the court or jury finds the policyholder is entitled to recover, exclusive of costs; (b) $60,000; or (c) the difference between what the policyholder recovers and whatever Allstate offered to settle before the lawsuit was filed. Courts must compute all three values and award the smallest. Marcheschi approved a Section 155 penalty of $18,750 — 25% of the then-applicable cap — plus attorney fees and prejudgment interest, illustrating how the calculation works in practice.
The third layer is attorney fees and costs. Section 155 expressly authorizes the court to award you reasonable attorney fees. This is critical because it means you may not have to pay out of pocket to hold Allstate accountable. The fee-shifting provision removes what is often the biggest barrier to filing suit against an insurer with vastly greater resources.
The fourth layer is consequential damages. In Mohr, 143 Ill. App. 3d 989, the court confirmed that Section 155 does not prevent an award of consequential damages for breach of the insurance contract. That includes lost profits where they were reasonably foreseeable, were within the contemplation of the parties at the time the contract was entered, or arose out of special circumstances known to the parties. If Allstate’s refusal to pay caused you to lose rental income, incur emergency repair costs, or suffer business interruption, those losses may be recoverable on top of the policy proceeds and the Section 155 penalty.
The fifth layer is interest. Prejudgment interest accrues at 5% per year under the Illinois Interest Act (815 ILCS 205/2) on amounts wrongfully withheld through unreasonable and vexatious delay. Post-judgment interest accrues at 9% per year under 735 ILCS 5/2-1303 from the date of judgment until Allstate pays. These interest provisions run on top of policy proceeds, consequential damages, attorney fees, and the Section 155 penalty. In Greater New York Mutual Insurance Co. v. Galena at Wildspring Condominium Ass’n, 2022 IL App (2d) 210394, the court clarified that prejudgment interest requires the amount owed to be fixed or easily calculable. But where the insurer flatly denies coverage, as noted in Old Second National Bank v. Indiana Insurance Co., 2015 IL App (1st) 140265, prejudgment interest accrues from the denial date. The insurer loses the “amount not determinable” defense.
Put together, the total recovery in a Section 155 case can far exceed what Allstate originally owed. On a $100,000 underpaid claim, your recovery could include the $100,000 in policy proceeds, up to $60,000 in statutory penalties, reasonable attorney fees and costs, consequential damages for lost income or emergency expenses, and years of accrued interest at 5% pre-judgment and 9% post-judgment.
How long do I have to file a lawsuit against Allstate?
The statute of limitations for a Section 155 claim is five years, governed by the catch-all civil-action provision at 735 ILCS 5/13-205. The court in Marcheschi rejected the argument that the two-year penal-statute limitation applied, holding that Section 155 falls under the five-year window.
But the five-year number can be misleading. Section 155 does not stand alone — it attaches to a breach of contract claim. And that underlying claim is governed by the policy’s own suit-limitation provision. Most Allstate property policies require you to file suit within one or two years of the date of loss. That shorter deadline, not the five-year statutory window, is what controls access to the courthouse in practice.
Illinois does provide a tolling rule. Under 215 ILCS 5/143.1, the policy’s suit-limitation clock is paused from the date proof of loss is filed until the date Allstate denies the claim in whole or in part. The court in Mitchell v. State Farm Fire & Casualty Co., 343 Ill. App. 3d 281 (4th Dist. 2003), interpreted this tolling broadly and held that the insurer cannot ignore a valid proof of loss to run out the clock. But the tolling only works if proof of loss was actually submitted — and it must comply with the policy’s form requirements. In D’Agostino v. Illinois Farmers Insurance Co., 2023 IL App (1st) 210567-U, the court found the tolling statute did not apply because the plaintiff had not submitted adequate proof of loss until years after settling with the at-fault driver’s insurer.
The practical takeaway is that time works in Allstate’s favor, not yours. If Allstate has denied your claim or has been delaying without resolution, the time to evaluate your legal options is now — not after the policy’s suit-limitation window has closed.
Talk to a Chicago Insurance Litigation Attorney
Mag Mile Law represents policyholders in first-party insurance disputes and Section 155 bad faith claims against carriers including Allstate throughout Illinois. The firm’s attorneys are dual-licensed as both attorneys and property and casualty insurance producers — meaning they understand how carriers like Allstate evaluate, process, and deny claims from the inside. With more than two decades of experience in insurance coverage litigation and advertised recoveries including a $2,394,290 fire insurance recovery, the firm handles these cases at every stage of the dispute.
If Allstate has denied your claim, underpaid your loss, or stopped engaging with your case, contact Mag Mile Law in Chicago for a case evaluation.
