How to Write a Car Accident Demand Letter (With Structure & Tips)

A demand letter is the document that formally opens settlement negotiations — it lays out what happened, what you’re asking for, and why. A well-structured letter, backed by the kind of number our settlement calculator produces, gives an adjuster a clear, defensible reason to take your figure seriously instead of anchoring low.

When to Send a Demand Letter

Send your demand letter once you’ve reached maximum medical improvement — the point where your treating doctor confirms you’ve recovered as much as you’re going to, or your condition has stabilized into a known long-term outcome. Sending it too early risks settling for less than your actual damages once ongoing treatment costs are counted.

The Core Structure of an Effective Demand Letter

1. Introduction: identifies the parties, the date and location of the accident, and the claim number.
2. Liability summary: a factual, non-emotional account of how the accident happened and why the other driver was at fault, referencing the police report where possible.
3. Injury and treatment summary: the diagnosis, treatment received, and current status, supported by medical records — not just a description in your own words.
4. Itemized damages: medical expenses, lost wages, property damage, and pain and suffering, each broken out separately rather than lumped into one total.
5. The demand amount: a specific dollar figure, not a range, with a clear deadline for response (typically 2–4 weeks).

How to Present the Pain and Suffering Figure

Rather than stating an arbitrary number, show your work: reference the multiplier method, the total medical expenses it’s based on, and the severity factors that justify your chosen multiplier — consistent treatment, documented impact on daily life, and diagnostic evidence. Our full breakdown of the multiplier method covers exactly which factors push this number higher.

What to Leave Out

• Emotional language or accusations — a clinical, well-documented tone is taken more seriously by adjusters than an angry one.
• Admissions of any shared fault, even minor ones, unless you’ve confirmed how your state’s comparative negligence rules would treat that admission.
• Unverifiable claims about future medical needs without supporting documentation from a treating physician.
• Your absolute bottom-line acceptable number — the demand should start above what you’d actually accept, leaving room to negotiate down.

Setting the Demand Amount

A common approach is to demand somewhat above your calculated settlement value — often 20–50% higher — to leave negotiating room, since the first offer back is rarely a straight acceptance. Use the calculator’s output as your realistic floor, not your opening ask.

After You Send It

Expect a counteroffer, often well below your demand — this is a normal part of negotiation, not necessarily a sign of bad faith. Our guide on evaluating a first settlement offer and our breakdown of common adjuster tactics cover how to respond without leaving money on the table.

Frequently Asked Questions

This article is educational only and not legal advice. Consider having a demand letter reviewed by a licensed attorney, particularly for significant injury claims.