UM/UIM Demand Letter - Missouri

Missouri Demand Letters Updated November 2, 2026 Free Word and PDF

UM/UIM (UNINSURED/UNDERINSURED MOTORIST) DEMAND LETTER

State of Missouri


[LAW FIRM LETTERHEAD]

SETTLEMENT COMMUNICATION — FOR COMPROMISE PURPOSES ONLY
EVIDENTIARY USE SUBJECT TO MISSOURI COMMON LAW AND, WHERE APPLICABLE, FED. R. EVID. 408


VIA CERTIFIED MAIL, RETURN RECEIPT REQUESTED
AND VIA EMAIL TO: [ADJUSTER_EMAIL]

Date: [__/__/____]

[INSURANCE_COMPANY_NAME]
[UM_UIM_CLAIMS_DEPARTMENT_ADDRESS]
[CITY], [STATE] [ZIP]

Attention: [ADJUSTER_NAME], [ADJUSTER_TITLE]

Re: UM/UIM POLICY LIMITS DEMAND — MISSOURI LAW
Insured/Claimant: [________________________________]
Policy Number: [________________________________]
Claim Number: [________________________________]
Date of Loss: [__/__/____]
Location of Loss: [________________________________] (County of [____________], Missouri)
UM/UIM Policy Limits: $[____________]
Tortfeasor: [________________________________]
Tortfeasor's Carrier: [________________________________]
Tortfeasor's Limits: $[____________]
Response Deadline: [__/__/____] (select a period based on the policy and claim circumstances; § 537.058 does not set this first-party UM/UIM deadline)


Dear [ADJUSTER_NAME]:

Missouri courts generally exclude bona fide settlement offers when offered as admissions, but Missouri has no generic "Mo. R. Evid. 408" governing an ordinary demand. Missouri Supreme Court Rule 17.06 separately protects communications in an ADR process undertaken under Rule 17. Where federal evidence law applies, Federal Rule of Evidence 408 may limit specified uses of negotiations concerning a disputed claim. These authorities do not themselves make this ordinary demand confidential or privileged.

I. INTRODUCTION AND NATURE OF DEMAND

This firm represents [CLIENT_NAME] ("our client" or "the Insured") in connection with a claim for [UNINSURED / UNDERINSURED] motorist benefits under the above policy of insurance issued in the State of Missouri. On [__/__/____], our client sustained catastrophic injuries in a motor vehicle collision that occurred in [____________] County, Missouri. This letter constitutes a formal demand for tender of the full UM/UIM policy limits of $[____________].

Our client's damages greatly exceed the tortfeasor's liability limits and any available UM/UIM coverage. The purpose of UM/UIM coverage under Missouri law, as the Missouri Supreme Court has repeatedly recognized, is to protect the Insured against the risk of inadequate compensation from financially irresponsible or underinsured motorists. See Krombach v. Mayflower Ins. Co., 827 S.W.2d 208 (Mo. banc 1992); Zemelman v. Equity Mut. Ins. Co., 935 S.W.2d 673 (Mo. App. W.D. 1996).

Missouri's public policy, as codified in Mo. Rev. Stat. § 379.203, requires that every motor vehicle liability policy delivered in this state provide uninsured motorist coverage of not less than $25,000 per person and $50,000 per accident. Any policy provision that conflicts with the statute — or restricts coverage below the statutory minimum — is void as against public policy.


II. MISSOURI UM/UIM LAW AND STACKING

A. Statutory Framework — Mo. Rev. Stat. § 379.203

Missouri's UM statute, § 379.203, mandates uninsured motorist coverage in minimum limits of $25,000 per person / $50,000 per accident. While UIM coverage is not mandated by statute in Missouri, when it is sold it is governed by the policy language and Missouri common law construing insurance contracts in favor of coverage. See Rodriguez v. General Accident Ins. Co., 808 S.W.2d 379 (Mo. banc 1991).

B. Stacking — Identify the UM Coverages Claimed

For this UM claim, the insured seeks the following coverages: [IDENTIFY EACH VEHICLE, POLICY, UM LIMIT, AND PREMIUM]. The insurer relies on [IDENTIFY ANY EXCLUSION OR LIMITATION]. The insured's position on stacking is [STATE THE POLICY- AND FACT-SPECIFIC BASIS]. Section 379.203 requires UM coverage for covered Missouri vehicles; the effect of a proposed stacking limitation requires analysis of the policy, insured's status, and controlling decisions. A clause's clarity alone does not resolve every statutory UM issue.

For UIM coverage, the stacking analysis is governed by policy language, but Missouri courts likewise refuse to enforce ambiguous or hidden set-off/anti-stacking clauses. Jones v. Mid-Century Ins. Co., 287 S.W.3d 687 (Mo. banc 2009); Manner v. Schiermeier, 393 S.W.3d 58 (Mo. banc 2013).

C. Coverage Analysis Under Missouri Law

Item Information
Named Insured [________________________________]
Policy Number [________________________________]
Policy Period [__/__/____] to [__/__/____]
UM Coverage Limit $[________] per person / $[________] per accident
UIM Coverage Limit $[________] per person / $[________] per accident
Number of Vehicles on Policy [____]
Stacking Status (Claimed) ☐ Stacked ☐ Non-Stacked (disputed)
Premium Paid Per Vehicle $[________]

D. Coverage Trigger

For Uninsured Motorist (UM) Claims — § 379.203.1:
The tortfeasor qualifies as an "uninsured motorist" because (check all that apply):

☐ The tortfeasor had no liability insurance at the time of the collision
☐ The tortfeasor's insurer has denied coverage
☐ The tortfeasor's liability insurer cannot make payment because of insolvency, as addressed by Mo. Rev. Stat. § 379.203.2
☐ The tortfeasor was a hit-and-run driver whose identity cannot be established — no physical contact is required; § 379.203.1 provides that UM entitlement exists "whether or not physical contact was made between the uninsured motor vehicle and the insured or the insured's motor vehicle"
☐ The tortfeasor's liability limits are less than the $25,000/$50,000 Missouri statutory minimum

For Underinsured Motorist (UIM) Claims:
The tortfeasor qualifies as "underinsured" because:

☐ The tortfeasor's liability limits of $[____________] are insufficient to compensate our client's damages of $[____________]
☐ Our client has exhausted or will exhaust the tortfeasor's policy limits
☐ The policy is not subject to a valid set-off that reduces coverage to zero


III. THE COLLISION AND LIABILITY

A. Facts of the Collision

On [__/__/____], at approximately [____] [a.m./p.m.], our client was [DESCRIBE_CLIENT_ACTIVITY — e.g., lawfully traveling northbound on Interstate 70] at or near [LOCATION] in [CITY], [COUNTY] County, Missouri.

[DETAILED_DESCRIPTION_OF_COLLISION — include direction of travel, lane positions, speeds, weather, roadway conditions, and point of impact]

B. Tortfeasor's Negligence Under Missouri Law

The tortfeasor, [TORTFEASOR_NAME], breached the duty of ordinary care owed to our client. Under Missouri's Approved Jury Instructions (MAI), the tortfeasor was negligent in one or more of the following respects:

☐ Failed to keep a careful lookout (MAI 17.05)
☐ Failed to yield the right-of-way (MAI 17.08)
☐ Violated the rear-end doctrine / following too closely (MAI 17.16)
☐ Drove at an excessive speed for conditions (MAI 17.03)
☐ Operated a motor vehicle while impaired (Mo. Rev. Stat. § 577.010 — DWI)
☐ Failed to stop at a traffic control device
☐ Crossed the center line / improper lane change (MAI 17.13)
☐ Operated distracted (including texting — Mo. Rev. Stat. § 304.822, Siddens Bening Hands Free Law)
☐ Other: [________________________________]

C. Missouri Pure Comparative Fault

Missouri applies pure comparative fault pursuant to the Missouri Supreme Court's decision in Gustafson v. Benda, 661 S.W.2d 11 (Mo. banc 1983), which adopted the Uniform Comparative Fault Act. Our client bears no comparative fault for this collision, and even if a minimal percentage were assessed, recovery would not be barred. The full value of our client's damages is recoverable subject only to reduction by any percentage of fault attributed to our client by the trier of fact.

D. Evidence of Liability

1. Missouri Uniform Crash Report:
[INVESTIGATING_AGENCY] Missouri Uniform Crash Report (Report No. [____________]), prepared by [OFFICER_NAME], [BADGE_#]. The investigating officer concluded [SUMMARY_OF_CONCLUSIONS] and cited [TORTFEASOR_NAME] for [VIOLATION(S)].

2. Witness Statements: [____] independent witnesses have provided statements corroborating our client's version of events.

3. Physical Evidence: Point of impact, vehicle damage patterns, gouge marks, skid marks, and debris field.

4. Expert Analysis: [RECONSTRUCTIONIST_NAME] has analyzed the collision and concluded [SUMMARY_OF_OPINION].


IV. OUR CLIENT'S INJURIES AND TREATMENT

A. Injury Summary

As a direct and proximate result of this collision, our client sustained:

Primary Injuries:

  • [________________________________]
  • [________________________________]
  • [________________________________]

B. Treatment Timeline

Provider Specialty Treatment Dates Treatment Provided
[____________] [____________] [__/__/____] to [__/__/____] [____________]
[____________] [____________] [__/__/____] to [__/__/____] [____________]
[____________] [____________] [__/__/____] to [__/__/____] [____________]

C. Current Condition and Prognosis

[DESCRIBE_CURRENT_CONDITION_AND_PROGNOSIS]

D. Permanent Impairment

Body Part/System AMA Guides Rating
[____________] [____]%
[____________] [____]%
Combined Whole Person [____]%

V. DAMAGES

A. Medical Expenses

IMPORTANT — Missouri Collateral Source Rule, Mo. Rev. Stat. § 490.715:
Under § 490.715.5, parties may introduce evidence of the actual cost of medical care. The statute defines that cost as no more than amounts paid by or for the patient plus any remaining amount needed to satisfy the provider's obligation after contractual discounts, reductions, or write-offs. Document the billed charges and the statutory actual-cost calculation separately below.

Past Medical Expenses (Billed):
Provider Dates of Service Charges
[____________] [__/__/____] to [__/__/____] $[________]
[____________] [__/__/____] to [__/__/____] $[________]
TOTAL BILLED $[________]
Past Medical Expenses (§ 490.715 "Paid/Satisfied" Value):

$[____________]

Future Medical Expenses (Present Value):
Treatment/Service Estimated Cost
[____________] $[________]
[____________] $[________]
TOTAL FUTURE MEDICAL $[________]

B. Lost Income

Past Lost Income: $[________]
Future Lost Earning Capacity (Present Value): $[________] — supported by vocational/economic report of [EXPERT_NAME]

C. Non-Economic Damages

Missouri law permits recovery of non-economic damages for past and future pain, suffering, mental anguish, disfigurement, and loss of enjoyment of life. Unlike medical malpractice cases (§ 538.210), there is no statutory cap on non-economic damages in ordinary motor vehicle negligence cases in Missouri. See Watts v. Lester E. Cox Medical Centers, 376 S.W.3d 633 (Mo. banc 2012) (striking non-economic cap as applied to medical negligence).

[DESCRIBE_PAIN_AND_SUFFERING — detail effects on daily life, family, recreation, work]

D. Damages Summary

Category Amount
Past Medical Expenses $[________]
Future Medical Expenses (PV) $[________]
Past Lost Income $[________]
Future Lost Earning Capacity (PV) $[________]
Past Non-Economic Damages $[________]
Future Non-Economic Damages $[________]
TOTAL DAMAGES $[________]

VI. SETTLEMENT WITH TORTFEASOR'S LIABILITY CARRIER

A. Settlement Status

We [☐ HAVE REACHED / ☐ ARE PURSUING] a tender of the tortfeasor's liability limits from [TORTFEASOR_CARRIER] in the amount of $[____________].

B. Consent to Settle / Preservation of Subrogation Rights

Missouri UIM policies typically contain "consent to settle" and "exhaustion" clauses. Pursuant to the policy and Missouri law, we hereby formally:

(1) REQUEST WRITTEN CONSENT to our client's settlement with the tortfeasor's liability carrier for the tortfeasor's policy limits;

(2) PROVIDE NOTICE that [CARRIER_SHORT_NAME] has [____] days to exercise any subrogation rights by substituting its payment in lieu of the liability settlement; and

(3) PRESERVE [CARRIER_SHORT_NAME]'s subrogation rights against the tortfeasor to the extent consistent with Missouri law. See Halpin v. American Family Mut. Ins. Co., 823 S.W.2d 479 (Mo. banc 1992).

Please respond within [____] days so that the parties can address any consent-to-settle or subrogation issue under the issued policy and applicable law before settlement with the tortfeasor.


VII. DEMAND FOR UM/UIM BENEFITS

A. Calculation of UIM Benefits Due

Item Amount
Total Damages $[________]
Less: Tortfeasor's Policy Limits ($[________])
Underinsured Damages $[________]
Available UIM Limits (per policy / stacked) $[________]
UIM BENEFITS DEMANDED $[________]

B. Policy Limits Demand

We hereby demand tender of the full UM/UIM policy limits of $[____________].

Our client's documented damages of $[____________] exceed the combined liability and UIM coverage available. We request prompt evaluation and tender of the applicable limits. A refusal to pay without reasonable cause or excuse may support relief under Mo. Rev. Stat. § 375.420; the claim record and the insurer's stated reasons must be evaluated before asserting that remedy.


VIII. VEXATIOUS REFUSAL TO PAY — MISSOURI LAW

A. Statutory Framework — Mo. Rev. Stat. § 375.420

Missouri law provides a statutory remedy against insurers that refuse to pay claims "without reasonable cause or excuse." Under § 375.420, the court or jury may assess, in addition to the amount due:

(1) Damages not to exceed 20% of the first $1,500 of the loss ($300 maximum); plus
(2) 10% of the amount of the loss in excess of $1,500; plus
(3) A reasonable attorney's fee.

See DeWitt v. American Family Mut. Ins. Co., 667 S.W.2d 700 (Mo. banc 1984); Overcast v. Billings Mutual Ins. Co., 11 S.W.3d 62 (Mo. banc 2000).

B. Alternative Statutory Basis After Due Demand — Mo. Rev. Stat. § 375.296

Section 375.296 is limited to an insurer unauthorized to do business in Missouri. It permits the same statutory damages and fees described in § 375.420 for a qualifying action on an insurance contract issued or delivered in Missouri to a covered resident or corporation, if the insurer has not paid within 30 days after due demand made before suit and the refusal is vexatious without reasonable cause. This insurer [IS / IS NOT] unauthorized, and this case [DOES / DOES NOT] meet the remaining conditions. Do not add both sections' penalties for the same refusal.

C. "Without Reasonable Cause" Standard

The vexatious refusal statute applies when the insurer's refusal is "willful and without reasonable cause, as the facts appear to a reasonable and prudent person before trial." Watters v. Travel Guard Int'l, 136 S.W.3d 100 (Mo. App. E.D. 2004); Macheca Transp. Co. v. Philadelphia Indem. Ins. Co., 737 F.3d 1188 (8th Cir. 2013). Vexatiousness may be inferred from the insurer's conduct during litigation, unreasonable claim handling, or failure to investigate.

D. No Independent Tort for First-Party Bad Faith

Missouri does not recognize an independent common-law tort for first-party bad faith breach of an insurance contract. Overcast, 11 S.W.3d at 69. However, the Overcast court expressly preserved a defamation claim where the insurer publishes false reasons for denial, and Missouri does recognize a separate cause of action for third-party bad faith failure to settle within policy limits. Zumwalt v. Utilities Ins. Co., 228 S.W.2d 750 (Mo. 1950); Shobe v. Kelly, 279 S.W.3d 203 (Mo. App. W.D. 2009).

E. Missouri Unfair Claims Settlement Practices Act — Mo. Rev. Stat. §§ 375.1000–375.1018

The UCSPA expressly creates no private cause of action for violations of §§ 375.1000–375.1018. Mo. Rev. Stat. § 375.1000.2. Evaluate any administrative complaint separately on the claim-handling facts.


IX. ARBITRATION

A. Policy Arbitration Clause

The policy [☐ CONTAINS / ☐ DOES NOT CONTAIN] an arbitration clause governing UM/UIM disputes. Mo. Rev. Stat. § 435.350 expressly excludes insurance contracts from the Missouri Uniform Arbitration Act's agreement-enforcement provision. Determine whether the policy clause is enforceable under other controlling law before invoking arbitration.

B. Arbitration Demand (If Applicable)

If [CARRIER_SHORT_NAME] fails to accept this demand, consider this letter formal notice of our intent to invoke arbitration under the policy and Missouri law. We reserve all rights to challenge unconscionable arbitration provisions under State ex rel. Vincent v. Schneider, 194 S.W.3d 853 (Mo. banc 2006).


X. RESPONSE DEADLINE

This demand expires at 5:00 p.m. Central Time on [__/__/____].

Section 537.058 does not supply this first-party UM/UIM deadline. Counsel selected the response period from the policy, claim history, applicable law, and case-specific objectives: [________________________________].

Consequences of Non-Response

If [CARRIER_SHORT_NAME] fails to accept this demand:

  1. Suit will be filed in the Circuit Court of [____________] County, Missouri, seeking all available damages;
  2. Vexatious refusal damages will be sought under § 375.420 (20% of first $1,500 + 10% of excess + attorney fees);
  3. Regulatory complaint will be filed with the Missouri Department of Commerce and Insurance, Consumer Affairs Division, P.O. Box 690, Jefferson City, MO 65102-0690 (telephone 800-726-7390); and
  4. Preservation request: Please preserve the claim records and other relevant evidence identified below while this matter is pending.

XI. STATUTE OF LIMITATIONS NOTICE

The Missouri statute of limitations for breach of a written insurance contract is ten (10) years under Mo. Rev. Stat. § 516.110. The limitations period for the underlying tort claim (personal injury) is five (5) years under Mo. Rev. Stat. § 516.120. Our client intends to preserve all claims within these periods.


XII. DOCUMENT PRESERVATION NOTICE

Please preserve documents and ESI related to this claim, including the complete claim file, reserve information, adjuster notes, internal communications, claim guidelines, and communications with the tortfeasor's carrier. We reserve any remedy available under applicable law if relevant evidence is lost.


XIII. CONCLUSION

This claim presents clear liability under Missouri's pure comparative fault regime, catastrophic injuries, and damages far exceeding both the tortfeasor's limits and the available UM/UIM coverage. [CARRIER_SHORT_NAME] owes contractual and statutory duties to its own insured under the policy and Mo. Rev. Stat. § 379.203. The only reasonable course is prompt tender of policy limits.

Respectfully submitted,

[LAW_FIRM_NAME]

By: _______________________________
[ATTORNEY_NAME]
Missouri Bar No. [____________]
[ADDRESS]
[CITY], MO [ZIP]
[PHONE]
[EMAIL]

Counsel for [CLIENT_NAME]


ENCLOSURES:

  • Policy declarations page
  • UM/UIM coverage provisions
  • Missouri Uniform Crash Report
  • Medical records and itemized bills
  • Photographs of vehicles and injuries
  • Expert reports (if applicable)
  • Wage loss documentation
  • Life care plan (if applicable)

CC:

  • [CLIENT_NAME]
  • [TORTFEASOR_CARRIER] (re: consent to settle)
  • Missouri Department of Commerce and Insurance (conditional)

MISSOURI UM/UIM LAW QUICK REFERENCE

Element Missouri Law
UM Minimum Limits $25,000 per person / $50,000 per accident (§ 379.203)
UM Mandatory Yes — § 379.203
UIM Mandatory No — optional coverage governed by policy
Stacking (UM) Evaluate § 379.203, each claimed coverage, the insured's status, policy terms, and controlling decisions; do not assume a clear exclusion resolves the statutory issue.
Comparative Fault Pure — Gustafson v. Benda, 661 S.W.2d 11 (Mo. banc 1983)
First-Party Bad Faith Tort Not recognized — Overcast v. Billings Mut.
Third-Party Bad Faith Recognized — Zumwalt v. Utilities Ins. Co.
Vexatious Refusal Penalty 20% of first $1,500 + 10% of excess + attorney fees (§ 375.420)
UCSPA § 375.1000–375.1018 (no private cause of action)
SOL — Qualifying Written Insurance-Policy Claim 10 years (§ 516.110)
SOL — Tort/Personal Injury 5 years (§ 516.120)
Regulator Missouri Department of Commerce and Insurance, P.O. Box 690, Jefferson City, MO 65102-0690; 800-726-7390

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About this template

Last updated
November 2, 2026
Jurisdiction
Missouri
Category
Demand Letters

Legal authority

  • Mo. Rev. Stat. § 379.203 (Uninsured/Underinsured Motorist Coverage)
  • Mo. Rev. Stat. § 303.190 (Financial Responsibility — $25,000/$50,000/$25,000 minimums)
  • Mo. Rev. Stat. § 375.420 (Vexatious Refusal to Pay)
  • Mo. Rev. Stat. § 375.296 (Additional damages for vexatious refusal by an unauthorized insurer after 30-day pre-suit demand)
  • Mo. Rev. Stat. § 375.1000 to § 375.1018 (Unfair Claims Settlement Practices Act)
  • Mo. Rev. Stat. § 537.065 (Contracts Limiting Recovery to Specific Assets)
  • Mo. Rev. Stat. § 516.120 (subsection (4): five-year period for a personal-injury claim not otherwise enumerated)
  • Mo. Rev. Stat. § 516.110 (10-year period for the qualifying written insurance-policy claim)
  • Overcast v. Billings Mutual Ins. Co., 11 S.W.3d 62 (Mo. banc 2000)
  • Zumwalt v. Utilities Ins. Co., 228 S.W.2d 750 (Mo. 1950)
  • Gustafson v. Benda, 661 S.W.2d 11 (Mo. banc 1983)
  • Ragsdale v. Armstrong, 916 S.W.2d 783 (Mo. banc 1996) (stacking)

A demand letter is a formal written request to fix a problem or pay what is owed, sent before anyone files a lawsuit. It gives the other side a real chance to settle, creates a record of your attempt to resolve things, and in many cases (unpaid debts, insurance claims, broken contracts) starts a legally required response window. A well-written demand letter lays out what happened, what you want, and a deadline to act, which is often enough to get results without ever going to court.

Not legal advice

This template is provided for informational purposes. We recommend having an attorney review any legal document before signing, especially for high-value or complex matters.

Checked against the law it cites

The statutes this template relies on are listed under Legal authority.

Mo. Sup. Ct. R. 56.01(b)(1) (checked November 2, 2026): "Parties may obtain discovery regarding any matter, not privileged, that is relevant to the subject matter involved in the pending action"

Mo. Sup. Ct. R. 58.01(b)(2) (checked November 2, 2026): "Without leave of court, requests may be served on: (A) A plaintiff after commencement of the action"

Mo. Rev. Stat. § 537.058.1(2) (checked November 1, 2026): "an offer to settle any claim for personal injury, bodily injury, or wrongful death made by or on behalf of a claimant to a tort-feasor with a liability insurance policy"

Mo. Rev. Stat. § 375.420 (checked November 1, 2026): "the court or jury may, in addition to the amount thereof and interest, allow the plaintiff damages"

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