declaration of estimated tax declaration • declaration of independence · · · Info · Definitions · Synonyms · Characters · · declaration of estimated tax · · Text Common · · Latin · · Scripts 28 · · Length 10 · · Syllables Definitions · · · (noun) return required of a taxpayer whose tax withheld from income does not meet the tax liability for the year. Synonyms: declaration of estimated tax, estimated tax return. · · Noun Definition 1 Synonyms · · · estimated tax return · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 x latin small letter x U+0078