How to Write a Car Accident Demand Letter

A demand letter is your claim in writing. It tells the insurance company what happened, what it cost you and what you want to settle. A good one is clear, organized and hard to argue with. It does not need legal jargon, and it does not need to be long. It needs to make the adjuster's job easy and make your number look reasonable.

Here is how to write one, section by section, with examples. If you would rather skip the formatting, our free demand letter generator builds it from a short form and gives you an editable letter and a PDF.

Why a written demand matters

Phone calls are easy to forget and easy to dispute. A written demand creates a record of what you asked for, when, and why. It forces the insurer to respond to your actual numbers instead of opening with their own. And it signals that you are organized, which tends to get a claim taken more seriously.

When to send it

• Injury claims: after you finish treatment, or once your doctor can estimate future care. Send it too early and you may leave out costs you cannot add later, because a settlement is final.
• Property damage: once you have the repair invoice or the total loss valuation.
• Diminished value: after the repair is complete and you have your value research. See what diminished value is and how to claim it.

Keep an eye on your state's filing deadline. A demand letter does not stop the clock. If your deadline is close, talk to a lawyer about protecting the claim. Deadlines for every state are on our state rules pages.

Before you write: gather your documents

• The police report or report number
• The claim number and the adjuster's name and address
• Every medical bill and record, in date order
• Proof of lost wages: a letter from your employer or pay stubs
• Photos of the vehicles, the scene and your injuries
• Repair estimates or invoices, rental and towing receipts
• A short diary of pain and daily limits, if you kept one

The 7 parts of a strong demand letter

1. Header and claim details

Your name and address, the date, the insurer's name and address, the adjuster's name, the claim number, their insured's name and the date of loss. Adjusters juggle many files, so make yours easy to match.

2. A short, factual account of the crash

Two to five sentences. Where you were, what their driver did, and what the police report says. For example: "On March 3, I was stopped at a red light on Main Street when your insured struck the rear of my car. The police report lists your insured as at fault for following too closely."

3. Your injuries and treatment

In order: the ER or urgent care visit, the diagnosis, follow ups, therapy and any procedures. Use the words your doctors used. If a doctor recommended future care, say so and attach the note.

4. How the injury affected your life

This supports pain and suffering. Be specific: time off work, help you needed at home, activities you had to stop, trouble sleeping, events you missed. Short, concrete details are more convincing than big adjectives.

5. An itemized list of damages

Item	Amount
City Hospital emergency room	$3,200
Imaging	$1,150
Physical therapy (24 visits)	$2,880
Prescriptions	$210
Lost wages (3 weeks)	$2,700
Total economic damages	$10,140

Include small items: prescriptions, parking at appointments, mileage. They add up, and leaving them out means leaving money on the table.

6. Your demand

A clear number. Most people open at the high end of a realistic range, leaving room to negotiate. Our car accident settlement calculator can help you find that range, and its "Write a demand letter" button carries your numbers straight into the generator.

7. A response deadline

"Please respond in writing within 30 days" is standard and reasonable. It keeps things moving without sounding aggressive.

How much should you ask for?

There is no single right answer, but a practical approach is:

1. Add up your economic damages.
2. Estimate pain and suffering with the multiplier and per diem methods. Our pain and suffering calculator shows both.
3. Adjust for any share of fault you may carry.
4. Open near the top of the resulting range.

Avoid asking for more than the other driver's policy limit unless you have a plan for the difference, like an underinsured motorist claim with your own insurer. A demand the policy cannot pay rarely speeds things up.

A short sample letter

On March 3, 2026, I was stopped at a red light at Main Street and 5th Avenue when your insured struck the rear of my car. The police report lists your insured as at fault. I was treated at City Hospital for neck and back strain and completed 12 weeks of physical therapy. My medical expenses total $7,230 and I lost $2,700 in wages. The injuries kept me from lifting my children, driving long distances and sleeping through the night for about three months. To resolve this claim, I am requesting $32,000. Please respond in writing within 30 days.

The generator produces a full version with headings, an itemized list and an enclosures line.

What to attach

Copies, never originals, of:

• Medical records and bills
• Proof of lost wages
• Photos of the vehicles, the scene and your injuries
• The police report
• Repair estimates or invoices
• For diminished value: your value research and any appraisal

Mistakes to avoid

• Admitting fault or apologizing for the crash.
• Exaggerating. One inflated claim can make the adjuster doubt everything else.
• Leaving out future treatment your doctor has recommended.
• Sending originals of any document.
• Accepting a phone offer before you have seen it in writing.
• Ignoring your deadline while negotiations drag on.

After you send it

Send it by certified mail or through the insurer's claim portal, and keep a copy with the date you sent it. Expect a counteroffer, usually lower. Our guide on how adjusters calculate settlement offers explains what they will look at. Respond in writing, point to your evidence, and adjust your number only when you have a reason to. Before you accept anything, read should you accept the first settlement offer.

For serious injuries, disputed fault or bills near the policy limit, having an attorney review the letter before you send it is worth considering. Many offer free consultations.

Demand letter checklist

Before you send it, check that your letter has:

• Your name, address and the date
• The claim number and the insured's name
• A two to five sentence account of the crash
• Your injuries and treatment in date order
• A specific paragraph on how the injury affected your life
• An itemized list of damages with a total
• A clear demand amount
• A response deadline
• A list of enclosures
• Your signature

Frequently asked questions

How long should a demand letter be?

Usually one to three pages, plus attachments. Clear and organized beats long.

Do I need a lawyer to send a demand letter?

No. Many people send their own, especially for property damage and diminished value. For injuries with ongoing treatment, a lawyer’s review can help.

What if the insurer ignores my demand letter?

Follow up in writing. If you still hear nothing, you can complain to your state’s insurance department or talk to an attorney, especially if a deadline is approaching.

Should I send my demand letter by email or mail?

Either can work. Certified mail or the insurer’s claim portal gives you proof of delivery, which is useful if there is a dispute later.

Can I ask for more than my medical bills?

Yes. A demand usually includes medical bills, lost wages, other costs and an amount for pain and suffering.

What happens after I send a demand letter?

The adjuster reviews it and usually responds with a counteroffer. Negotiation continues in writing until you agree or decide on another step.