/ Thesaurus / T Synonyms of tax liability Find synonyms for: Noun1. tax liability, liabilitiesusage: the amount of tax owed; calculated by applying the tax rate to the tax baseWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language