After a Demand Letter: Illinois Settlement Timeline

In Illinois, most insurers respond to a personal injury demand letter within 30 to 45 days. The first offer usually arrives in week three or four. If the adjuster misses the deadline without explanation, Illinois bad-faith law (215 ILCS 5/155) gives you leverage to push back.

You signed the medical authorizations. Your attorney gathered the records, totaled the bills, calculated the lost wages, and mailed a thick demand letter to the at-fault driver’s insurance carrier. Now it’s day 12, your phone hasn’t rung, and you’re refreshing your email like the adjuster is going to send a check by FedEx tomorrow.

Here’s the honest timeline — week by week — from a Peoria personal injury firm that has sent these letters and chased these adjusters for decades. We’ll walk through what happens at day 1, day 30, day 45, and day 90, what the carrier is actually doing on the other end, and the point where waiting stops being a strategy and filing suit becomes the move.

How long does an insurance company have to respond to a demand letter in Illinois?

There is no statute in Illinois that forces an insurance company to respond to a personal injury demand letter by a specific date. What does exist is a regulatory duty under the Illinois Insurance Code to handle claims in good faith and without unreasonable delay — most importantly 215 ILCS 5/154.6, the unfair-claims-practices statute, and 215 ILCS 5/155, the vexatious-delay statute.

In real life, the timeline is shaped by three things:

The deadline your attorney writes into the demand letter itself. Most personal injury attorneys give the carrier 30 to 45 days to respond. That deadline is not legally binding the way a court deadline is — but it sets the clock for the bad-faith argument later.
The adjuster’s internal claim review schedule. Large carriers route demand packages through layers of review — adjuster, supervisor, sometimes a committee — before they’re allowed to authorize a number.
The size of the case. A $12,000 soft-tissue claim moves faster than a $400,000 surgical case with disputed liability. Bigger cases mean more eyes, more reviews, and longer waits.

The treatise we rely on for this work — How Insurance Companies Settle Cases — is blunt about the rhythm: written demand goes out, you wait, the adjuster takes the file to a supervisor, and only then do the phone calls start. Skipping that wait by calling on day 3 doesn’t speed anything up. It signals desperation.

What is a reasonable deadline to put in a demand letter — 30 days or 45 days?

Thirty days is standard for a clean case; 45 days is reasonable for a complex one with surgical bills, multiple providers, or a wage-loss component that takes work to verify. The practice guide Representing Automobile Accident Victims instructs that every demand letter must include “a reasonable, specific time frame for a reply” — not “please respond at your convenience,” and not “respond immediately” without a date attached.

Here’s how the deadline actually does work for you:

It anchors the bad-faith argument. If the carrier ignores a clearly stated 30-day deadline and then offers $4,000 on a $60,000 case three months later, you have the start of a vexatious-delay record under 215 ILCS 5/155.
It forces the adjuster onto a calendar. Adjusters carry 150 to 250 open files. The ones with written deadlines float to the top.
It tells the supervisor the case has a litigator behind it. A demand letter without a deadline reads like a settlement-mill form letter. A demand letter with a hard date reads like the file is on a track to suit.

The deadline does not mean we file suit at 12:01 a.m. on day 31. It means we know what we’re doing on day 31, day 32, and day 33 — and so does the carrier.

What happens in the first week after the demand letter is mailed?

In week one, almost nothing visible happens on the carrier’s side — and that is normal. The package has to be received, logged into the claim file, scanned, and routed to the correct adjuster. On large carriers (State Farm, Country Financial, Progressive, Allstate) this can take three to seven business days before the file even lands on a desk.

On our side, week one looks like this:

We confirm delivery (we send by certified mail with return receipt, or by a tracked overnight service).
We update the file with the deadline date and tickle the calendar.
We hold off on calling the adjuster. The treatise How Insurance Companies Settle Cases is explicit: wait several days — not several hours — before calling to confirm receipt. Calling on day 2 puts you in the “anxious plaintiff’s lawyer” bucket, and adjusters use that to set their offer low.

If you are the client and it is day 5 with no news, that is exactly where the case should be. Calls to your attorney in week one are fine and normal — but the adjuster’s silence in week one is meaningless.

When should my attorney call the adjuster to follow up?

The first follow-up call is usually 7 to 10 business days after the demand letter is sent, and only to confirm receipt and confirm which adjuster has the file. Not to negotiate. Not to ask “what do you think?” The purpose of that call is to put a human voice on the file and to verify that the package is in front of the right person.

After that, the rhythm we follow:

Day 7–10: confirmation call. Short.
Day 20–25: status check. “Where are you in the review? Anything missing?”
Day 30 (or whatever deadline we set): deadline call. Either we have an offer, or we have a written extension request, or we have grounds to escalate.

The mistake the treatise warns about — and the mistake we see other firms make — is calling every two or three days. Repeat calls signal the lawyer wants to settle more than the carrier wants to settle. The adjuster’s offer goes down, not up, the more you call.

What does the insurance company actually do with the demand package?

Inside the carrier, your demand package gets read, valued, and ranged — and that takes the full 30 days for a reason. Here is the sequence most major carriers run, drawn from How Insurance Companies Settle Cases and from what adjusters have told us in mediations and depositions over the years:

Intake review. The adjuster reads the demand letter, the medical summary, the bills, the wage documentation, and the liability evidence (police report, photos, witness statements).
Medical-records audit. A nurse-reviewer or medical-records specialist flags any gaps, pre-existing conditions, or treatment the carrier will dispute as unrelated.
Liability evaluation. The adjuster scores fault percentages. In Illinois, modified comparative fault means anything 50% or less on the plaintiff still recovers — the carrier knows this and will argue any percentage they can get.
Reserve and authority check. The adjuster has an “authority” — a dollar ceiling they can offer without supervisor approval. If your demand exceeds it, the file goes up the chain. That alone can add 7 to 14 days.
Initial offer. Almost always lower than the case’s actual value. The first number is a test, not a final answer.

If your demand letter is well-built — itemized bills, medical narrative, wage loss with employer documentation, pain-and-suffering reasoning grounded in Illinois Pattern Jury Instructions — all five steps move faster. If it’s thin, the adjuster has every reason to slow-walk it.

What if the adjuster ignores the deadline or low-balls the offer?

If the deadline passes with no response, or the offer is so low it’s not a serious negotiating position, the leverage shifts to you — and Illinois law gives you specific tools to use. Here is what we do, in order:

One written extension is reasonable. If the adjuster asks for two more weeks because the supervisor is on vacation, we usually grant it once. We do not grant a second extension without a concrete reason.
We document the delay. Every call, every email, every “I’ll get back to you” goes into the file. That record becomes Exhibit A in a 215 ILCS 5/155 vexatious-delay claim if we ever need to file one.
We respond to the low-ball in writing. A short, firm letter that itemizes what the offer ignores (full medical specials, the wage-loss component, the comparable verdicts in the venue) often moves the number significantly on the next call.
We prepare suit. Drafting the complaint while negotiations continue puts real pressure on the adjuster. They can tell.

An offer of $3,500 on a $25,000 case is not a negotiation — it’s a stall. Treating it like a serious offer rewards the behavior. We don’t.

How long does the back-and-forth phone negotiation usually take for cases in the $5,000 to $75,000 range?

For cases in the $5,000 to $75,000 band, the phone-negotiation phase typically takes two to six weeks after the first offer. The treatise How Insurance Companies Settle Cases describes this band specifically — it’s where most personal injury claims live, and it’s where the negotiation rhythm is most predictable.

What that rhythm looks like:

Call 1 — first offer. Adjuster opens low. We respond with the demand number, restated, and a specific reason the first offer is inadequate.
Call 2 — adjuster moves. Usually 5 to 7 business days later. The offer goes up by 20% to 40%.
Call 3 — we move. We come off the demand by a measured amount, never matching the adjuster’s increment.
Calls 4–6 — closing the gap. If both sides are negotiating in good faith, the gap closes in two to four more calls over the next two to three weeks.

Cases under $5,000 sometimes settle in one or two calls because the authority is small and the adjuster has full discretion. Cases over $75,000 take longer because supervisor sign-off, committee review, and sometimes a defense-counsel evaluation slow every step.

When does Illinois bad-faith law (215 ILCS 5/155) kick in for delay?

Illinois 215 ILCS 5/155 gives a court the power to award attorney’s fees and statutory penalties when an insurance company’s delay or denial of a claim is “vexatious and unreasonable.” It is a real statute with real teeth — but it is narrower than most clients hope, and it usually applies to first-party claims (your own carrier on a UM/UIM or MedPay claim) rather than third-party claims (the at-fault driver’s carrier).

That said, two Illinois statutes work together as pressure points the moment the deadline passes:

215 ILCS 5/154.6 — the unfair-claims-practices act. Lists specific carrier behaviors (failing to acknowledge, failing to investigate, lowballing without basis) that the Illinois Department of Insurance can act on. A complaint to the Department doesn’t pay your client, but it creates a regulatory paper trail the carrier hates.
215 ILCS 5/155 — vexatious delay. The remedy is statutory attorney’s fees plus a penalty (a percentage of the amount due, capped). It is most useful as a threat in writing, often more than as a filed claim.

And once we do file suit, Illinois also allows prejudgment interest on personal injury verdicts under 735 ILCS 5/2-1303. That interest accrues from the date suit is filed and gives the carrier a financial reason to stop stalling.

How long from acceptance to check in hand?

Once both sides agree on a number, the check typically arrives within 14 to 30 days — but the money doesn’t go straight to you. Here’s the sequence:

Settlement confirmation. The agreed number is restated in writing — usually an email same day, followed by a letter or release within a few days.
Release signed. The carrier sends a settlement release. We review it, push back on any overreach (broad indemnity clauses, confidentiality clauses that don’t belong on a routine PI claim), and the client signs.
Carrier issues the check. Made payable to “[Client] and Parker & Parker Attorneys at Law.” Usually 7 to 21 days after the signed release lands.
Trust-account deposit. The check goes into our client trust account and clears (often a 5-to-10-day hold).
Lien resolution. Health insurance liens, medical-provider liens, and Medicare/Medicaid interests must be resolved before disbursement. This is often the slowest step — it can add a week or it can add three months, depending on the lienholder.
Disbursement. We send the client a settlement statement showing every dollar in and every dollar out, then cut the client’s check.

Clients sometimes expect the day-the-check-arrives to be the day-the-money-arrives. It isn’t. The lien step is the one that surprises people, and it is the step we work hardest to compress.

When is it time to stop negotiating and file suit?

If the deadline passes, the offers stall, and the carrier’s number is more than 30% below where comparable cases resolve in your venue, it’s time to file suit. Filing changes everything. The case leaves the adjuster’s desk and goes to defense counsel, prejudgment interest starts accruing, and discovery rules force the carrier to put real numbers on the case.

Signs we’re past the negotiation phase:

Two or more missed deadlines with no written extension request.
The carrier’s “best and final” is still below the medical specials.
The adjuster keeps escalating internally with no movement on the number.
The Illinois statute of limitations is approaching (in most PI cases, two years from injury under 735 ILCS 5/13-202).

Filing suit is not a failure of negotiation. It is the next negotiation, on different terms, with a judge keeping time. Most cases that go to suit still settle — they just settle for more, because the carrier no longer controls the calendar.

If you’re past the deadline you set in your demand letter and the adjuster has gone quiet, talk to a Peoria personal injury lawyer who handles the negotiation-to-suit transition every week — that’s the conversation that decides whether you settle this month or six months from now.

Demand Letter Out and Nothing Happening? Let’s Talk.

Parker & Parker has been pushing insurance carriers in Peoria, Tazewell, Woodford, and surrounding counties for decades. Robert Parker personally handles every case the firm accepts. Call (309) 673-0069 or schedule a free consultation — we’ll tell you honestly whether the offer on the table is fair, or whether it’s time to file.

Frequently Asked Questions

How long does it take to settle a car accident claim in Illinois after the demand letter is sent?

For a typical Illinois car accident claim in the $5,000 to $75,000 range, expect 30 to 45 days for the first offer and another two to six weeks of phone negotiation. Larger cases — surgical injuries, disputed liability, multi-vehicle wrecks — can run three to six months from demand to settlement. Cases that go to suit typically resolve 9 to 18 months after filing.

Can the insurance company just ignore my demand letter?

Legally they can ignore it for a while — there is no statute that forces a third-party carrier to respond by a date certain. Practically, ignoring it has consequences. Once the deadline passes, the file documents itself for a vexatious-delay claim under 215 ILCS 5/155, an unfair-claims-practices complaint under 215 ILCS 5/154.6 to the Illinois Department of Insurance, and ultimately a lawsuit that puts prejudgment interest on the clock.

Is the first offer from the insurance company always low?

In our experience, yes — almost always. The first number is a test of how prepared the file is and how prepared the lawyer is. We have seen first offers come in at 15% to 30% of the case’s eventual settlement value. That is not a sign the case is weak; it is the carrier’s standard opening move. The treatise How Insurance Companies Settle Cases describes this as the negotiating norm, not the exception.

Should I accept the insurance company’s first offer if I need money now?

Accepting a first offer almost always leaves money on the table — sometimes a lot of money. If cash flow is the issue, talk to your attorney about advancing case costs, about negotiating with medical providers to hold balances, and about whether a partial advance on settlement is possible. Signing a release for a low first offer ends the claim permanently, and you cannot reopen it later if your injury turns out to be worse than you thought.

What happens if the demand letter deadline passes and the adjuster asks for more time?

One reasonable written extension is normal — supervisor on vacation, missing medical record, recently assigned adjuster. We typically grant a first extension of 7 to 14 days if the request is in writing and gives a specific reason. A second extension request without movement on the offer is usually a stall, and at that point we start preparing the complaint.

Does filing a lawsuit mean my case won’t settle anymore?

No. Most Illinois personal injury cases that go to suit still settle — often for substantially more than the pre-suit offer. Filing transfers the file from the adjuster to defense counsel, starts prejudgment interest under 735 ILCS 5/2-1303, and forces the carrier to put a real evaluation on the case. Settlement after suit just happens on different terms, with a court schedule keeping everyone honest.

How long do I have to file an Illinois personal injury lawsuit if negotiations break down?

In most Illinois personal injury cases you have two years from the date of injury to file suit under 735 ILCS 5/13-202. Claims against a city, county, or state agency have shorter notice deadlines — sometimes as short as one year. If you are within six months of the statute of limitations and negotiations are stalled, file. Do not let the clock run out chasing one more adjuster phone call.

Demand Letter Timeline in Illinois: 30/45/90 Days (2026)