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The claim process

The demand letter in a car accident claim: when it is sent and what it contains

When a demand letter is usually sent, what goes into it, the documents that support it, state rules on policy-limits disclosure and time-limited demands, and how insurers respond.

Quick answer

A Demand letter. A letter that lays out the facts, injuries and losses in a claim and asks the insurer to pay a stated amount. Glossary is a written request asking an insurer to pay a claim. It sets out the facts of the crash, why the insurer's customer is responsible, the injuries and treatment, the medical bills, lost income and other losses, and the amount requested. It is usually sent once treatment ends or the injured person reaches Maximum medical improvement. The point at which doctors expect no further recovery. Claims are often valued once you reach it. Glossary, and always well before the filing deadline. Some states regulate parts of the process: in Florida an insurer must disclose its liability coverage within 30 days of a written request, and in Missouri a time-limited demand must stay open for at least 90 days.

Key facts

Usual timing
After treatment ends or a stable pointAlways before the filing deadline
Florida: sworn coverage disclosure
Within 30 days of a written requestFla. Stat. § 627.4137
Missouri: time-limited demand stays open
At least 90 daysFrom the insurer's receipt
Missouri: time to pay after a signed release
At least 10 daysIf the demand sets a payment deadline
Insurer's reply to a claimant's letter
15 daysNAIC model; states vary
Warning before the filing deadline
60 days before it expiresNAIC model; unrepresented claimants
Adult injury lawsuit deadline
2 years in Texas1 year in Tennessee

When a demand letter is sent#

Injury demands often wait until the medical picture is clear. If the letter goes out while treatment is still underway, it can leave out surgery, therapy or time off work that has not happened yet, and a settlement usually cannot be reopened once the release is signed.

Waiting has its own limit: your state's Statute of limitations. The law that sets the last day to file a lawsuit. After it passes, a court will usually dismiss the case, however strong it is. Glossary. The insurer's pace does not stop that clock. The NAIC model regulation asks insurers to warn unrepresented third-party claimants at least 60 days before a time limit expires, but states adopt their own rules, so it helps to know the date yourself. Our deadline lookup shows the limit in each state.

When treatment will last a long time, some claimants send a demand once doctors can describe future care and its likely cost. Others send one early because the injuries clearly exceed the at-fault driver's Policy limits. The most an insurance policy will pay for one claim or one accident, no matter how large the losses are. Glossary. Each choice has trade-offs that a lawyer can explain.

What a demand letter usually includes#

Demand letters vary, but most follow a similar outline. The tone is calm and specific: it reads like a well-organized summary of evidence, not an angry complaint.

  1. Claim details. The insurer's claim number, its customer's name, the date of the crash and the claimant's name, addressed to the assigned adjuster.
  2. The facts of the crash. Date, time, place and a short account of what happened, with the police report number.
  3. Liability. Why the insurer's customer is responsible: the police report, any ticket, witness statements, photos and the traffic rules that applied. Good letters also answer any claim of shared fault.
  4. Injuries and treatment. Each diagnosis, every provider, a timeline of care, current condition and any future care the doctors expect.
  5. Medical expenses. A list of charges by provider and date, totaled, drawn from the itemized bills.
  6. Lost income. Days missed, the rate of pay and an employer letter, plus any lasting effect on the ability to earn.
  7. Other out-of-pocket losses. Prescriptions, equipment, travel to appointments, help at home and any property damage still unpaid.
  8. Non-economic losses. How the injury changed daily life: pain, sleep, work, family, hobbies and plans.
  9. The demand. The amount requested and how long the offer stays open.
  10. Enclosures. A list of every document attached.

Our guide to types of damages explains the economic and non-economic losses a claim can include.

The documents behind the letter#

A demand is only as strong as the proof attached to it, because adjusters compare each figure with the documents.

DocumentWhat it supports
Police report and photosHow the crash happened and who caused it
Witness statementsAn independent account of fault
Medical recordsDiagnosis, treatment and the link to the crash
Itemized billsThe cost of each service
Payment records and lien lettersWhat health insurance, PIP or Medicare paid
Employer letter, pay stubs or tax returnsLost income
A doctor's report on future careTreatment and costs still to come
A pain and activity journalNon-economic losses

Our guides to the police report and medical records explain how to get these. Payments already made by others matter too: for example, Medicare must be repaid its conditional payments when a settlement, judgment or award is paid. Our guide to medical liens and subrogation covers those repayments.

Policy limits and disclosure#

The at-fault driver's policy limits are often the practical ceiling on a settlement, because the insurer pays only up to the limits it sold. Knowing them before a demand goes out shapes what is asked for and whether other coverage, such as your own underinsured motorist coverage, may come into play.

Florida requires disclosure. Within 30 days of a claimant's written request, a liability insurer must give a sworn statement listing the insurer's name, each insured's name, the liability limits, any coverage defense the insurer believes it has, and a copy of the policy. The insured, or their agent, must also disclose every known insurer when asked in writing.

Disclosure rules differ from state to state, so how much an insurer will reveal before a lawsuit varies. A licensed attorney in your state can tell you what applies.

Time-limited demands#

A Time-limited demand. A settlement offer to an insurer that must be accepted within a stated period. Some states set rules for what such a demand must contain and how long it must stay open. Glossary offers to settle within the policy limits if the insurer accepts by a set date. These demands carry high stakes for insurers: in many states, an insurer that unreasonably passes up a chance to settle within its limits can face a Bad faith. An insurer's unreasonable refusal or delay in paying a valid claim. Many states allow extra penalties for it. Glossary claim for the amount above them.

Some states now set strict rules for these demands. Missouri is one example. There, a time-limited demand must be in writing, refer to the statute and go to the insurer by certified mail, return receipt requested. It must stay open for at least 90 days after the insurer receives it and, among other terms, must state the amount requested or ask for the policy limits, give the date and location of the loss, describe the known injuries, name the people to be released and offer an unconditional release. It must also include a list of treating providers with HIPAA-compliant authorizations, plus a list of employers with authorizations if lost wages are claimed. If it sets a payment deadline, that deadline cannot be less than 10 days after the insurer receives the signed release.

The statute explains why the details matter: a demand that does not follow these rules is not treated as a reasonable opportunity to settle if the insurer is later sued for damages above its limits.

How the insurer responds#

Under the NAIC model regulation, an insurer should reply to a claimant's letter within 15 days, and your state may set its own deadline. The NAIC model act also expects an insurer that denies a claim or offers less to promptly give a reasonable and accurate explanation of the basis for a denial or a compromise offer.

The reply usually takes one of four forms:

  • a request for more documents, such as older medical records or wage proof;
  • a counteroffer, usually lower than the demand, with the adjuster's reasons;
  • a denial of liability, saying its customer was not at fault or that you share the blame;
  • acceptance of the demand as written.

A counteroffer starts the negotiation stage, where each side explains its reasons and the numbers move. If talks stall as the deadline approaches, a lawsuit may need to be filed to protect the claim. Our claim process guide shows how these steps fit together.

Questions people ask

When is a demand letter sent after a car accident?

Usually after treatment ends or doctors can describe future care, so the letter can include every cost. It must leave enough time before the filing deadline for negotiation and, if needed, a lawsuit.

What goes into a car accident demand letter?

The facts of the crash, the evidence of fault, each injury and treatment, itemized medical expenses, lost income, other out-of-pocket costs, non-economic losses and the amount requested, with copies of the supporting documents.

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

It depends on the state. The NAIC model asks insurers to reply to a claimant's letters within 15 days. A time-limited demand sets its own acceptance date, and some states, such as Missouri, set a minimum period.

What is a time-limited demand?

An offer to settle, usually within the policy limits, that must be accepted by a set date. In Missouri it must stay open at least 90 days and meet other formal rules. Other states have their own rules.

Can I find out the other driver's policy limits before sending a demand?

In Florida, yes: the liability insurer must give a sworn statement of its coverage within 30 days of a written request. Elsewhere it varies by state, and a licensed attorney in your state can explain the options.

Do I need a lawyer to send a demand letter?

No law requires one for an ordinary demand letter, and some people handle small claims themselves. Time-limited demands, serious injuries and disputed fault are where many people decide to talk to a licensed attorney in their state.

Sources

  1. NAIC, Unfair Property/Casualty Claims Settlement Practices Model Regulation — model reply deadline and filing-deadline notice
  2. Revisor of Missouri, RSMo § 537.058 — time-limited demand requirements and their effect
  3. Florida Legislature, Florida Statutes § 627.4137(1) — as of October 2026
  4. Texas Legislature, Civil Practice and Remedies Code § 16.003(a) — as of October 2026
  5. Justia (2025 Tennessee Code), Tenn. Code Ann. § 28-3-104 — as of October 2026
  6. NAIC, Unfair Claims Settlement Practices Act (Model 900), Sec. 4 — as of October 2026
  7. CMS, Non-Group Health Plan (NGHP) Medicare Secondary Payer (MSP) Beneficiary Reference Guide v1.0 — as of July 2024

Last reviewed October 29, 2026 by the Accident Claim Facts editorial team. Found an error? Tell us.

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