sure as death and taxes /ʃʊɹ æz dɛθ ænd tæksəz/adjective 1adverb 1 adjective1 •Totally certain.Time, with his stealing steps, hath clawed me in his clutch, as the old song says: And this cursed gout; but it is what we must all come to. Nothing so sure as death and taxes. — 1824 adverb1 •Most certainly."As sure as Death and Taxes", the old proverb says. But there's a difference. You may evade, dodge or lie out of your taxes, but Death will not be deceived or denied. — 1908