rate base

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noun

a guaranteed minimum amount or number used to compute advertising rates, as the number of subscribers to a publication.
a basic amount or number used to compute charges to a customer, as the number of monthly phone calls.
the valuation of property upon which tax rates are based.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for rate base

Contemporary Examples of rate base

  • By these accounts, the rate-base cut and other changes were driven by Ascheim and his team.

    The Daily Beast logo
    Newsweek's Hidden Problem

    Rebecca Dana, Peter Lauria

    August 4, 2010