How to Write a Personal Injury Demand Letter (With Structure)

The demand letter is the moment your claim becomes a number. Everything before it is treatment and documentation; everything after it is negotiation from the position this document establishes.

Which is why the most common mistake is sending it too early. A demand written while you are still treating asks the insurer to value an incomplete injury — and the value it assigns then is the anchor you spend months trying to move.

Quick answer: Send it after maximum medical improvement, never before. Structure it as facts → liability → injuries → treatment → damages calculation → demand → deadline. Attach complete records with an index. State a specific response date. Open above your target, but keep every figure supported.

Want a starting draft instead of writing the structure from scratch? Our free demand letter generator assembles the facts you enter into this structure — read on for what actually belongs in each section and what to change before sending it.

Before You Write: Two Preconditions

1. You have reached maximum medical improvement. Your treating physician can state your final condition, any permanent impairment, and expected future care. Until then, nobody — including you — knows the claim’s value.

2. You have complete documentation in hand. All records, all itemized bills, wage verification, and any permanency opinion. Missing records are the most common reason a demand goes unanswered for weeks.

The Structure

1. Header and claim identification

Claim number, date of loss, your name, their insured’s name. Address it to the assigned adjuster by name where known. Send it so that receipt is verifiable — certified mail, or email with a delivery record.

2. The facts

Two or three paragraphs, chronological, factual, unemotional. What happened, where, when. Reference the police report by number. Resist adjectives — a plainly stated account of a rear-end collision at a stop light is more persuasive than an indignant one.

3. Liability

State clearly why their insured is responsible, and cite the support:

• The police report’s findings and any citation issued
• The specific traffic statute or rule violated
• Witness statements
• Physical evidence, photographs, or camera footage
• Any admission by their insured

If comparative fault is likely to be raised, address it directly rather than leaving it for them to introduce. An unaddressed weakness invites a larger discount than one you have pre-empted.

4. Injuries and treatment

Chronological, and specific:

• Diagnoses as stated by your physicians, using their language
• Each provider seen, dates, and what treatment was given
• Objective findings — imaging results, surgical reports, test results, quoted from the records
• Any permanent impairment rating or written restrictions

Then the part most demands handle poorly: functional impact. Not “I was in a lot of pain,” but concrete effects:

“Unable to lift my daughter for four months. Missed 22 shifts. Cannot sit for more than 30 minutes, which ended my ability to perform my prior role. Sleep interrupted nightly for six months, documented in physical therapy notes dated…”

Specific limitations tied to records persuade. General suffering does not.

5. The damages calculation

Show the arithmetic in a table. Never a lump figure with no derivation.

Item	Amount
Emergency department	$3,200
Orthopedic consultations (6)	$2,400
MRI, lumbar spine	$2,100
Physical therapy (24 sessions)	$4,800
Prescriptions	$640
Total medical expenses	$13,140
Lost wages (14 days, verified)	$3,920
Mileage to appointments (1,140 mi)	$712
Total economic damages	$17,772
Pain and suffering (3× medical)	$39,420
Total	$57,192

Then justify the multiplier explicitly — severity, treatment duration, permanency, functional loss. An unexplained multiplier is a number to be argued down; an explained one is a position to be negotiated.

For how insurers read these components, see how insurance companies calculate settlements.

6. The demand

One specific figure. Above your target, with negotiating room, and supported by the calculation you just showed. If documented value is $57,000, demanding $75,000 is defensible; demanding $500,000 tells the adjuster the file is not serious and can move it to a slower, more adversarial track.

Where damages clearly exceed available coverage, a policy limits demand may be appropriate — a distinct instrument with technical requirements that should be structured with an attorney, because in many states an insurer’s unreasonable refusal of a reasonable policy limits demand carries consequences beyond the limits.

7. The deadline and closing

State a specific date — thirty days is standard. Request written confirmation of receipt. Say plainly that the offer is for settlement purposes and does not waive any rights.

8. Attachments, with an index

• Police report
• Complete medical records from every provider
• Itemized billing statements
• Imaging and diagnostic reports
• Wage-loss verification on employer letterhead
• Receipts for out-of-pocket expenses
• Photographs of injuries and vehicle damage
• Any permanency opinion or impairment rating

Attach only what supports this claim. Do not volunteer unrelated medical history — you are not obliged to, and it supplies material for a pre-existing-condition defense.

What Destroys a Demand Letter

Mistake	Why it costs you
Sending before MMI	Anchors the claim at an incomplete value
Unsupported demand figure	Signals the file can be discounted; slows everything
Emotional or hostile tone	Read as weak documentation compensated by volume
Missing records	Stalls evaluation; nothing moves until they arrive
Volunteering unrelated medical history	Hands over a causation defense
Admitting any fault	Quoted back for the rest of the negotiation
Round-number guesses	Undermines the credibility of the whole calculation
No deadline	Invites indefinite delay
Threatening litigation you will not pursue	Costs credibility once it passes
Ignoring an obvious weakness	Guarantees it is used, unaddressed

After You Send It

Expect two to six weeks for a substantive response, and expect the first counter to be low. That is anchoring, not a verdict on your documentation.

Then:

1. Respond in writing, addressing their specific points rather than restating your position.
2. Move in smaller increments than they do, and give a reason for each move.
3. Escalate when the adjuster stalls at a number — that often reflects an authority limit rather than a final position.
4. Log every communication with dates and names.
5. Watch your statute of limitations. Negotiation does not stop the clock, and an insurer has no duty to warn you it is running out. See our state deadline reference.
6. Note regulatory deadlines. Most states impose acknowledgment and response requirements on insurers, and a complaint to the state insurance department is a real remedy for genuine stonewalling.

When to Hand It Over

Writing your own demand is reasonable for a small, well-documented claim with clear liability. Get help where any of these apply: surgery was performed or recommended; a permanency opinion exists; liability is disputed; multiple parties or policies are involved; damages approach or exceed policy limits; a government entity is involved; or a Medicare, Medicaid or ERISA lien is in play. Our do I need a lawyer? checklist walks through this same list interactively.

Sources & Further Reading

• State unfair claims settlement practices acts — insurer acknowledgment and response deadlines
• State case law on policy limits demands, bad faith and excess exposure
• State insurance department complaint procedures
• 42 U.S.C. § 1395y(b) — Medicare Secondary Payer obligations affecting settlement structure