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ad valorem

[ad vuh-lawr-uh m, -lohr-]
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adjective, adverb
  1. in proportion to the value (used especially of duties on imports that are fixed at a percentage of the value as stated on the invoice).

Origin of ad valorem

< Latin: literally, according to the worth
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ad valorem

Historical Examples

  • Then followed an ad-valorem duty of thirty-three and a third per cent.

    The War After the War

    Isaac Frederick Marcosson

  • By this scheme specific duties were imposed on certain enumerated articles; and an ad-valorem duty on those not enumerated.


British Dictionary definitions for ad valorem

ad valorem

adjective, adverb
  1. (of taxes) in proportion to the estimated value of the goods taxedAbbreviation: ad val, a.v., A/V

Word Origin

from Latin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ad valorem

type of customs duties, 1711, Latin, "in proportion to the value" (see value).

Online Etymology Dictionary, © 2010 Douglas Harper