The claims process typically begins with first notice of loss, the initial report from the insured that triggers the insurer's investigation. A claims adjuster assesses damages, determines coverage, estimates repair or replacement costs, and negotiates settlements. The insurer reviews whether the loss falls within the policy's insuring agreement, applies any exclusions, and confirms the applicable policy limits and waiting or elimination periods. A proof of loss is a formal, sworn statement detailing the circumstances, amount, and scope of the loss, generally required before settlement. The proximate cause doctrine identifies the dominant, effective cause that set in motion the chain of events producing the loss, with policies covering losses when an insured peril is the proximate cause.
Valuation is central to property claims. Replacement cost is the amount needed to replace damaged property with new property of like kind and quality, without deduction for depreciation. Actual cash value is replacement cost minus depreciation for age, condition, and useful life. The two approaches produce materially different claim payments, and depreciation is applied under ACV coverage so the insured is made whole but not better off. Coverage may be scheduled, listing specific items or locations with individual limits, or blanket, applying a single limit across multiple properties with flexibility as to where it is most needed. Stacking combines coverage limits from multiple vehicles, policies, or policy periods for a single loss, though anti-stacking provisions may limit this. The coverage trigger, occurrence versus claims-made, determines which policy responds, and an extended reporting period, often called a tail, allows claims to be reported after a claims-made policy expires. Subrogation is the insurer's right, after paying a claim, to pursue recovery from a third party whose negligence caused the loss, preventing the insured from collecting twice. Salvage is the recovered value of damaged property the insurer may sell to offset part of the claim. A deductible, possibly reduced through a deductible buy-down that trades a lower out-of-pocket cost for a higher premium, is the amount the insured pays before benefits apply; under a self-insured retention, the insured pays the SIR directly to the claimant without insurer adjustment.
Financial reporting also shapes claim outcomes. Claim reserves are estimated liabilities for specific claims, including case reserves set by adjusters and adjusted as claims develop. IBNR reserves cover losses that have occurred but not yet been reported, plus development on already-reported claims. Loss adjustment expenses include allocated costs assigned to specific claims and unallocated costs covering general overhead. Loss development is the change in estimated claim costs over time, analyzed by actuaries through development triangles, and adverse development occurs when prior estimates must be increased. Earned premium is the portion of written premium corresponding to elapsed coverage, with the unearned premium reserve representing the unexpired portion. Pro-rata cancellation refunds unused premium on a time basis, while short-rate cancellation applies when the insured cancels, with the insurer retaining more than pro-rata to cover administrative costs. In dispute resolution, an appraisal clause allows each side to appoint an appraiser with an umpire resolving differences, mediation uses a neutral third party to facilitate negotiation, and arbitration produces a binding or non-binding decision. A structured settlement pays the claimant through periodic installments rather than a lump sum. In health insurance, coordination of benefits prevents double payment when an insured is covered under multiple plans.