A demand letter is the single most important document in personal injury settlement negotiations. It is the formal written communication from the claimant to the at-fault party's insurer that establishes liability, quantifies every category of damages, and states the specific dollar (or pound, or euro) amount the claimant will accept to settle the claim. Most personal injury cases — across every jurisdiction covered on this site — settle on the basis of the demand letter and the negotiation it triggers, without ever reaching a courtroom.
A strong demand letter follows a six-part structure: facts of the incident → liability analysis → medical treatment and injuries → itemised special damages → general damages anchored to published authority → specific demand with deadline. Send it after reaching maximum medical improvement. Attach all supporting documentation as exhibits. The insurer typically responds within 30–45 days with a counter-offer, and negotiation proceeds from there.
Why the demand letter matters
The demand letter is where you frame the narrative. It is your opportunity to present the strongest version of your case before the adjuster forms their evaluation. A well-constructed demand letter achieves three things: it establishes that liability is clear, it demonstrates that damages are substantial and documented, and it signals that you are prepared to litigate if the insurer does not offer a fair settlement.
Adjusters evaluate hundreds of claims. They allocate time and settlement authority based on the strength of the file in front of them. A demand letter that arrives with attached medical records, receipts, photographs, and a clearly reasoned damages calculation receives more attention — and a higher initial counter-offer — than a vague letter stating “I was hurt and I want compensation.”
When to send it
Send the demand letter after you have reached maximum medical improvement (MMI) — the point at which your treating physician determines that further recovery is unlikely. Before MMI, you do not know the full extent of your injuries, your total medical costs, or your long-term prognosis. Settling before that point risks leaving substantial money on the table.
The six-part structure
Every effective demand letter follows a consistent structure. The six parts build on each other: facts establish what happened, liability establishes fault, medical documentation establishes injury, and the damages sections establish value.
- Establish the facts of the incident. State what happened, when, where, and who was involved. Reference the police report or incident report number. Be factual — no editorialising.
- Establish liability. Explain why the defendant is legally responsible. Cite specific acts or omissions, traffic laws violated, duty of care breached, or regulatory standards not met.
- Document medical treatment and injuries. List every medical provider, diagnosis, treatment received, and prognosis. Attach medical records, imaging reports, and specialist letters as exhibits.
- Itemise special damages. List every quantifiable financial loss with exact figures: medical bills, lost wages, future medical costs, travel expenses, prescription costs, property damage. Attach receipts and employer verification.
- Frame general damages against authority. State the non-economic damages sought and anchor the figure to published authority — JCG bands in the UK, multiplier ranges in the US, PIAG bands in Ireland, Andrews cap in Canada.
- State the demand and set a deadline. State the total settlement amount sought and give the insurer a reasonable response deadline — typically 30 days. Note that failure to respond may result in the commencement of formal proceedings.
Itemising special damages
Special damages are the backbone of the demand. Every figure must be evidenced with documentation. The table below shows the standard categories and what constitutes acceptable evidence.
| Category | What to include | Evidence required |
|---|---|---|
| Medical expenses | ER visits, surgery, imaging, specialist consults, physiotherapy, prescriptions | Itemised hospital bills, pharmacy receipts, provider invoices |
| Future medical costs | Ongoing treatment, future surgeries, long-term medication | Treating physician letter, expert medical report |
| Lost wages (past) | Days/weeks missed from work due to injury and treatment | Employer verification letter, payslips, tax returns |
| Lost earning capacity | Reduced ability to earn in the future | Vocational expert report, actuarial analysis |
| Travel expenses | Mileage to medical appointments, parking, public transport | Mileage log, receipts, appointment records |
| Property damage | Vehicle repair/replacement, damaged personal items | Repair invoices, replacement receipts, photographs |
| Care costs | Home help, childcare, nursing assistance | Carer invoices, agency records |
Framing general damages against authority
General damages — pain, suffering, and loss of amenity — must be anchored to the published authority in your jurisdiction. This is what separates a persuasive demand from a speculative one.
| Jurisdiction | Authority | How to cite in demand |
|---|---|---|
| England & Wales | Judicial College Guidelines, 16th ed. | Quote the specific band and bracket (e.g. “moderate neck injury: £7,410–£24,990”) |
| Ireland | Personal Injuries Guidelines (PIAG) | Reference the PIAG category and range; note PIAB assessment if obtained |
| United States | Comparable verdicts / multiplier method | Cite comparable jury verdicts from VerdictSearch or state databases; state multiplier basis |
| Canada | Andrews cap + comparable awards | Note the current CPI-adjusted cap; cite comparable provincial decisions |
| Australia | State Civil Liability Act + comparable awards | Reference state-specific impairment threshold and comparable awards |
| Spain | Baremo (Law 35/2015) | Calculate points under the mandatory scale and state the resulting figure |
| Germany | Schmerzensgeldtabelle | Reference comparable awards from the pain-money tables |
Jurisdiction-specific requirements
Some jurisdictions impose mandatory steps before or alongside the demand letter:
- England & Wales: The Pre-Litigation Protocol requires a letter of claim in a prescribed format. The defendant has 21 days to acknowledge and 3 months to investigate and respond.
- Ireland: Most claims must first be submitted to PIAB (Personal Injuries Assessment Board) before any demand letter to the insurer.
- Ontario, Canada: Statutory accident benefits must be claimed through the claimant's own insurer under the SABS scheme before pursuing a tort claim.
- New South Wales, Australia: A compulsory notification to the CTP insurer is required before commencing proceedings.
- United States: No universal pre-litigation protocol, but some states require notice to government entities within short windows (30–180 days) for claims against public bodies.
What happens after you send it
The insurer typically acknowledges receipt within a few days and assigns the demand to an adjuster (or reassigns it to a more senior adjuster if the demand exceeds the original adjuster's settlement authority). The adjuster then:
- Reviews the demand letter and all attached documentation
- Requests any missing records (medical, employment, incident reports)
- May request an independent medical examination (IME)
- Runs an internal valuation against their claims software and comparable settlements
- Responds with a counter-offer — typically within 30 to 45 days
The counter-offer is almost always below the demand. This is normal. It is the opening position in a negotiation, not the final word. Most cases require 2–5 rounds of back-and-forth before the parties reach agreement.
Common demand letter mistakes
- Sending before MMI. Settling before maximum medical improvement under-values the claim because future treatment costs and long-term prognosis are unknown.
- Inflated demands without support. A demand of $500,000 for a soft-tissue strain with $3,000 in medical bills will not be taken seriously. The demand must be proportionate and anchored to evidence.
- Missing documentation. Every figure in the demand must have a corresponding exhibit. Gaps in documentation give the adjuster reasons to reduce the counter-offer.
- Emotional or aggressive tone. Adjusters respond to evidence and authority, not threats or outrage. A professional, factual tone is more effective.
- Failing to set a deadline. Without a response deadline, the insurer has no incentive to act promptly. A 30-day deadline is standard.
- Not addressing comparative fault. If there is any argument for shared fault, address it pre-emptively. Ignoring it does not make it go away — the adjuster will raise it.
With versus without legal representation
| Factor | Self-represented | Attorney-represented |
|---|---|---|
| Adjuster perception | Lower litigation risk — may offer less | Higher litigation risk — offers reflect trial exposure |
| Authority framing | May miss relevant guidelines or comparable cases | Anchors to published authority systematically |
| Documentation quality | Often incomplete or poorly organised | Comprehensive, with indexed exhibits |
| Net recovery | Lower gross, but no attorney fee deduction | Higher gross, minus 25–40% contingency fee |
| Best suited for | Minor injuries, clear liability, low-value claims | Moderate to severe injuries, disputed liability, high-value claims |
Frequently asked questions
What is a demand letter in personal injury?
How long should a demand letter be?
When should I send a demand letter?
What happens after the insurer receives my demand letter?
Can I write a demand letter without a lawyer?
What should I NOT include in a demand letter?
Sources
- Civil Procedure Rules Practice Direction — Pre-Action Protocol for Personal Injury Claims (England & Wales)
- Judicial College Guidelines for the Assessment of General Damages, 16th edition
- Personal Injuries Guidelines, Judicial Council (Ireland)
- PIAB Act 2003 (Ireland) — mandatory assessment process
- National Association of Insurance Commissioners — claims handling best practices
- American Bar Association — demand letter guidance for personal injury practitioners
- Supreme Court of Canada — Andrews v Grand & Toy Alberta Ltd. [1978] 2 SCR 229
- Baremo de Daños y Perjuicios, Law 35/2015 (Spain)