U.S. Longshore and Harbor Workers' Compensation Act - see Longshore and Harbor Workers' Compensation Act (LHWCA) of 1927

Uberrimae Fidei

Ultimate Loss

Ultimate Net Loss

Ultra Vires Acts

Umbrella Liability Policy

Unaffiliated Business

Unallocated Benefit

Unallocated Loss Adjustment Expense (ULAE)

Unauthorized Insurer

Unbundling

Unconditional Settlement Clause

Unconscionable

Unconscious Bias

Uncorrelation - see Correlation

Underground Property Damage

Underinsurance

Underinsured Motorists (UIM) Coverage

Underlyers

Underlying Coverage

Underlying Interest

Underlying Premium - see Subject Premium

Underwriter

Underwriting

Underwriting Agency

Underwriting Capacity

Underwriting Cash Flow

Underwriting Class

Underwriting Cycle - see Market Cycles

Underwriting Expense

Underwriting Guidelines

Underwriting Manager

Underwriting Member

Underwriting Period

Underwriting Profit

Underwriting Risk

Underwriting Year Experience

Undue Familiarity

Undue Hardship

Unearned Premium (UEP or UP)

Unearned Premium Reserve (UEPR or UPR)

Unearned Reinsurance Premium

Unfunded Retention

Unfunded Self-Insurance

Unified Carrier Registration Agreement (UCRA)

Uniform Resource Locator (URL)

Uniform Task Based Management System (UTBMS)

Uniformed Services Employment and Reemployment Rights Act (USERRA) of 1994

Unilateral Contract

Unilateral Extended Reporting Period Provision