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ad valorem

American  
[ad vuh-lawr-uhm, -lohr-] / æd vəˈlɔr əm, -ˈloʊr- /

adjective

  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).


ad valorem British  
/ æd vəˈlɔːrəm /

adjective

  1. Abbreviation: ad val.   a.v..   A/V.  (of taxes) in proportion to the estimated value of the goods taxed

"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

Etymology

Origin of ad valorem

< Latin: literally, according to the worth

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

An executive order published by the White House on Thursday said that "certain agricultural products shall not be subject to the additional ad valorem rate of duty imposed."

From Barron's • Nov. 20, 2025

There will also be a 1% ad valorem tax based on sales for miners that post a profit.

From Reuters • Jul. 13, 2023

When Alpha Natural Resources filed for Chapter 11 bankruptcy in 2015, the company left about $19 million in unpaid ad valorem taxes owed to Campbell County.

From Washington Times • Jun. 9, 2019

The aim may have been to revive the economy but the effect, by boosting asset values, was to raise the "ad valorem" fees of mutual fund managers, hedge fund titans and the like.

From Economist • May 1, 2018

Equalization is frequently attempted by combination of specific duties upon all goods of a certain character with ad valorem duties upon all such goods above a certain quality.

From Rural Health and Welfare by Fairchild, George Thompson