[irishjuggler]

So it’s “ad valorem.” When the preposition is “ad” (to/toward), the noun that’s the direct object takes the accusative case (-em, -am, -um, for singular) like in “ad hominem.” The ending “-orum” is plural possessive, like in “sanctum sanctorum” (holy of holies).

[I want the USA back]

You are right, irishjuggler, it’s not “ad valorum” it’s “ad valorem”.

The square root of stupidity is still stupidity.

[Brian Griffin]

Pardon my mistake.

Ad valorem taxation is the true culprit.