tax base tax avoidance • tax benefit · · · Info · Definitions · Characters · · tax base · · Text Common · · Latin · · Scripts 8 · · Length 2 · · Syllables Definitions · · · (noun) collective value of taxable assets. Synonyms: tax base. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 s latin small letter s U+0073 t latin small letter t U+0074 x latin small letter x U+0078