In this guide
What UM and UIM Coverage Is
Uninsured motorist (UM) coverage can pay covered damages an insured person is legally entitled to recover from an uninsured driver, including qualifying unidentified-driver collisions. Underinsured motorist (UIM) coverage can address covered damages beyond applicable liability coverage. You are seeking benefits under an applicable insurance policy, not making a claim against yourself.
Insured status, fault, damages, policy terms and statutory procedures still matter. An insurer can dispute those issues, but a disputed valuation is not itself proof of misconduct. Preserve the accident-date policy and the written claim correspondence.
NC Minimum Coverage Requirements
For North Carolina auto policies newly issued or renewed on or after July 1, 2025, the minimum liability limits are $50,000 per person and $100,000 per accident for bodily injury, plus $50,000 per accident for property damage. Ordinary personal auto policies issued or renewed under these rules also include required UM and UIM coverage. See NC Department of Insurance guidance.
Required UM/UIM coverage on an ordinary NC personal auto policy cannot simply be waived. The named insured may choose different limits within the range allowed by G.S. 20-279.21. Review your declarations, coverage selections, and the policy’s issue or renewal date to confirm the applicable coverage before you need it.
Even the current minimum limits may be insufficient after a serious crash. For example, a $50,000 per-person UM limit will not fully compensate $200,000 in covered losses involving medical expenses, lost wages, and lasting impairment.
When UM Coverage Applies
UM coverage requires an applicable policy and a legally supported damages claim. Situations requiring review include:
- Unidentified driver: The statute addresses bodily injury resulting from a collision between motor vehicles when the other operator or owner cannot be identified. Preserve the contact evidence and obtain advice about the actual facts; do not assume every no-contact event is covered.
- Uninsured driver or denied coverage: Save the liability insurer’s written coverage position. A coverage denial and a dispute about fault are different issues; not every denied claim establishes uninsured status.
- Insolvent liability insurer: Statutory UM insolvency protection addresses accidents during the insured UM policy period when the responsible driver’s liability insurer becomes insolvent within three years after the accident. More favorable policy terms may exist.
For the unidentified-driver bodily-injury situation in G.S. 20-279.21(b)(3)b, report the accident to a specified officer or the Commissioner of Motor Vehicles within 24 hours or as soon afterward as practicable, and notify the insurer within a reasonable time. Preserve the report number, witnesses, photographs, video, and medical records. Bodily-injury and property-damage questions should be reviewed separately.
How UIM Fills the Gap
UIM coverage fills the gap between the at-fault driver’s liability limits and your actual damages. The calculation is straightforward in concept but frequently disputed in practice.
Example under the rules for NC policies newly issued or renewed on or after July 1, 2025: the at-fault driver has $50,000 in bodily-injury liability coverage, your covered damages are $120,000, and you have $100,000 in applicable UIM coverage. After the liability insurer pays its $50,000 limit, UIM coverage could pay the remaining $70,000, for $120,000 total. This assumes the coverage requirements are met and no applicable workers’ compensation credit or other issue changes the calculation.
For NC policies newly issued or renewed on or after July 1, 2025, the amount of UIM coverage is not reduced by a setoff or credit for liability coverage. The statute preserves a workers’ compensation exception. UIM still compensates covered losses; the absence of a liability setoff does not allow duplicate recovery for the same damages. Older policies and claims require review under the rules applicable to them. See G.S. 20-279.21(b)(4) and NC DOI’s explanation of the change.
Before settling, have counsel review written notice of the tentative settlement to every potentially relevant UIM insurer, proof of receipt and the proposed release. Under G.S. 20-279.21(b)(4), an insurer that receives the required written notice has 30 days after receipt to advance an amount equal to the tentative settlement to preserve the subrogation or settlement-approval rights described there. The statute limits those rights if the insurer does not advance that payment within the period. This is not a universal deadline to pay the entire UIM claim, and settlement steps do not replace timely filing or service.
Stacking Your Policies
Stacking means combining UM/UIM limits across multiple vehicles or multiple policies to increase the coverage available. NC permits inter-policy stacking (combining limits from separate policies) but restricts intra-policy stacking (multiplying limits by the number of vehicles on one policy).
Three vehicles on one policy with a $100,000 applicable UIM limit do not create $300,000 in UIM coverage. A person insured under separate qualifying nonfleet private-passenger policies can combine the highest applicable limit under each as G.S. 20-279.21(b)(3)–(4) provides. Do not assume an umbrella or commercial policy includes UM/UIM coverage or uses these same rules.
Confirm insured status, limits, exclusions and the responsible vehicle under every potentially relevant policy. A UIM claim under the owner’s policy insuring the responsible vehicle has an additional statutory limitation: that policy must provide UIM limits greater than its bodily-injury liability limits, and the available UIM is the excess. Passenger status alone does not establish coverage under every policy.
Suing Your Own Insurer
A coverage dispute, a dispute about the responsible driver’s fault, and a disagreement about damages can require different procedures. Do not assume that every UM/UIM disagreement is simply a direct breach-of-contract action against the insurer. G.S. 20-279.21(b)(3)–(4) sets out notice, service and litigation provisions. The actual policy must also be reviewed to determine whether arbitration is available for the particular dispute.
Ask for the insurer’s written coverage or claim explanation and preserve the correspondence. G.S. 58-63-15(11) addresses specified unfair claim-settlement practices and expressly states that a violation of that subsection does not itself create a private cause of action. Any potential contract, bad-faith or unfair-practices claim requires separate legal analysis. A denial or delay does not automatically establish entitlement to enhanced damages or attorney fees.
What to Document
The same documentation that supports a liability claim also supports a UM/UIM claim: police reports, medical records, photos, witness statements, and evidence of the at-fault driver’s insurance status. Also preserve your own policy, declarations, coverage-selection records, issue and renewal dates, and insurer correspondence.
For UIM claims, the at-fault driver’s policy declaration page is critical. You need to know their exact limits before structuring a settlement. Request it early and in writing.
Maximizing a UM/UIM Claim
Before agreeing to settlement terms, review the liability offer, every potential UM/UIM policy, notice requirements, and the release or covenant. Keep proof of written notices and responses. The effect of a settlement document depends on its terms and applicable law; do not assume other rights remain intact.
Evaluate the evidence supporting fault and damages alongside the available coverage. Our UM/UIM claim scenarios and document checklist walks through individual limits, multiple injured people, and coverage under separate policies. If a valuation remains disputed, identify the particular medical, income or other loss the insurer questions before responding.