Section 60 of the Marine Insurance Act 1906 states that, subject to any policy provision, a constructive total loss arises where the subject matter of an insurance is reasonably abandoned to the insurer by the insured on account of its actual total loss appearing unavoidable or because it could not be preserved from actual total loss without an expenditure that would exceed its value.
The term is sometimes used to refer to insured property, e.g. a car, which is damaged beyond economic repair.