A personal injury demand letter is a written offer you (or your lawyer) send to the at-fault party's insurance company that lays out what happened, why they're responsible, what the injury cost you, and a specific dollar amount you're asking them to pay to settle the claim. It's the document that formally opens settlement negotiations — before it, you're just an accident victim with medical bills; after it, you have a concrete number on the table that the insurance company has to respond to.
Most personal injury cases never go to trial. The vast majority resolve through negotiation, and that negotiation almost always starts with a demand letter. Think of it as your opening move in a back-and-forth: you ask for a number, the insurer counters lower, and the two sides work toward a figure both can live with.
What a demand letter actually does
Legally, a demand letter isn't a required step — you could sue without ever sending one. But in practice it serves several purposes at once:
It puts your claim in writing. Instead of a phone call an adjuster can misremember, you have a dated document laying out your version of events and your damages.
It forces a response. Once an insurer has a specific number and supporting documentation, it typically has to evaluate the claim and reply, rather than letting it sit indefinitely.
It sets the negotiation anchor. Whatever number you ask for becomes the starting point. Adjusters rarely offer more than what you demanded, so most people ask for somewhat more than they'd actually accept.
It can support a bad-faith claim later. If the insurer ignores a reasonable, well-documented demand or refuses to negotiate in good faith, the letter becomes evidence of that in some circumstances.
The legal building blocks behind the letter
Every demand letter is really an argument about fault and harm, built on the basic elements of a negligence claim: the other party owed you a duty of care, they breached it, that breach caused your injury, and you suffered actual damages as a result. The letter walks through each piece.
One thing to know going in: if you were partly at fault for the accident, your state's rules on shared fault can reduce or even eliminate your recovery. Most states use some form of comparative fault system, where your damages are reduced by your percentage of blame (and in many of those states, being 50% or more at fault can bar recovery entirely). A smaller number of states use contributory fault, where being even slightly at fault can bar recovery altogether. These rules vary by state, so it's worth understanding which system your state follows before you commit to a number in your letter — and definitely before you say anything to an adjuster that could be read as admitting fault.
What to include in a demand letter
A solid demand letter generally covers these sections, in roughly this order:
Identifying information. Your name, the claim or policy number if you have one, the date and location of the incident, and who you're addressing it to (usually a specific claims adjuster).
A factual narrative. A clear, chronological account of what happened — where you were, what the other party did, and how the injury occurred. Keep it factual and unemotional; save the persuasion for the damages section.
The liability argument. Explain specifically why the other party is at fault — they ran a red light, failed to maintain their property, didn't warn of a hazard, etc. Reference any evidence: a police report, witness statements, photos, or citations issued.
Your treatment history. A summary of the medical care you received, from the emergency room through any follow-up treatment, physical therapy, or ongoing care. This should track your actual medical records.
A damages summary. This is usually presented as an itemized list or table, separating:
Economic damages — medical bills, prescription costs, lost wages, mileage to appointments, property damage, and any future medical costs your doctor anticipates.
Non-economic damages — pain and suffering, emotional distress, loss of enjoyment of life, and scarring or permanent impairment.
The demand figure. A specific dollar amount you're asking the insurer to pay, usually stated clearly near the end: "Based on the above, we demand payment of $X to resolve this claim."
A response deadline. Most letters ask for a response within a set window (commonly two to four weeks), which keeps the process moving.
Supporting documentation. Copies (never originals) of medical bills, records, wage-loss statements from your employer, photos, and repair estimates, either attached or referenced as available on request.
How the demand figure is typically built
There's no official formula, but a common approach is to add up your economic damages first, since those are the easiest to document with receipts and records. From there, people often add an amount for pain and suffering — sometimes calculated as a multiple of the economic damages, sometimes as a per-day amount for the time you were in pain, and sometimes just a negotiated figure based on the severity of the injury. Because insurers almost always counter with a lower number, many people intentionally demand more than the amount they'd actually be willing to settle for, leaving room to negotiate down.
What to do: steps before and after sending your letter
Finish treatment first, if possible. Try to wait until you've completed treatment or reached "maximum medical improvement" (the point where your condition has stabilized) before sending your letter, so you're not underestimating your medical costs or leaving out a needed surgery or ongoing therapy.
Gather your documentation. Collect medical bills and records, a written summary of lost wages from your employer, photos of injuries and property damage, and the police or incident report.
Calculate your damages. Total your economic losses and decide on a reasonable figure for pain and suffering.
Draft the letter using the sections above, or start from a template like our free demand letter generator, which walks you through each section and formats it for you.
Send it in a way that proves delivery — certified mail with return receipt, or email with read confirmation — and keep a copy of everything you send.
Track the deadline you set and follow up in writing if the insurer doesn't respond.
Expect a counteroffer. Review it against your documentation, and respond with your own counter if it's too low. Several rounds are normal before you reach a number both sides accept.
Get any settlement in writing before you sign a release, since signing typically ends your ability to seek more money later, even if your condition worsens.
Time-sensitive issues to watch
Negotiating a demand letter can take weeks or months, and it's easy to lose track of time while you're going back and forth with an adjuster. But your right to sue is governed by your state's statute of limitations, and that deadline keeps running during negotiations — it does not pause just because you're talking to the insurance company. These deadlines vary significantly by state and by the type of claim (some states treat claims against government entities very differently, often with much shorter notice deadlines). Confirm the exact deadline that applies to your case with your state's court system or an attorney, and don't let settlement talks drag past it. If a deadline is approaching, you may need to file a lawsuit to preserve your rights even while negotiations continue.
Do you need a lawyer to send one?
Not always. For a straightforward claim with clear liability and modest damages, many people write and send their own demand letter. For serious injuries, disputed fault, or when an insurer is lowballing or delaying, an attorney's letter often gets more attention, and most personal injury lawyers work on a contingency fee — commonly around one-third of the settlement — meaning you pay nothing upfront and nothing at all if there's no recovery.
Is the money taxable?
Under federal tax law (IRC Section 104(a)(2)), compensation you receive for physical injuries or physical sickness is generally not taxable, and that usually extends to related lost wages and even most pain-and-suffering amounts tied to the physical injury. Punitive damages and interest on a settlement, however, are typically taxable regardless of the underlying injury. If your settlement includes punitive damages, note that the U.S. Supreme Court has said due process limits how large a punitive award can be relative to the actual harm (see BMW of North America v. Gore, 1996, and State Farm v. Campbell, 2003) — though this mostly comes up in litigated cases, not routine demand-letter settlements. Talk to a tax professional about your specific settlement structure.
This article is general information, not legal advice. Personal injury rules vary by state — confirm your state's specific deadlines and fault rules before relying on anything here.
Frequently asked questions
Do I need a lawyer to write a demand letter?
No. Many people write their own for smaller claims, especially fender-benders or minor slip-and-falls where liability is clear. For serious injuries, permanent damage, or disputed fault, a personal injury attorney's letter tends to carry more weight with an adjuster and can be worth the commonly around one-third contingency fee.
How much should I ask for in the demand figure?
There's no fixed formula. People commonly start by adding up their economic damages (medical bills, lost wages, property damage) and then adding an amount for pain and suffering, often expressed as a multiple of the economic damages for moderate injuries. Then they add room to negotiate down. The right number depends heavily on the facts, so this is where outside guidance helps most.
What happens after I send the demand letter?
The insurance adjuster reviews it and typically responds with a lower counteroffer, a request for more documentation, or occasionally a denial. Several rounds of back-and-forth are normal. Most claims settle this way without a lawsuit ever being filed.
Is there a deadline for sending a demand letter?
The demand letter itself isn't governed by a fixed deadline, but your underlying claim is subject to your state's statute of limitations for filing a lawsuit, and that clock is running the whole time you negotiate. Deadlines vary by state and by the type of claim, so confirm your specific deadline with your state's courts or an attorney rather than assuming you have plenty of time.
Is the settlement money from my demand letter taxable?
Generally, compensation for physical injuries or physical sickness is not taxable at the federal level under IRC Section 104(a)(2). Amounts for lost wages tied to a physical injury are typically covered too, but punitive damages and interest usually are taxable. Confirm your specific situation with a tax professional.
This article is general legal information, not legal advice, and may not reflect the most current law or the law in your jurisdiction. Laws vary by state and change over time. For advice about your specific situation, consult a licensed attorney.
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