(as) sure as death and taxes

(as) sure as death and taxes

Certain to happen; inevitable and unavoidable. A variation of the proverbial phrase, "Nothing is certain but death and taxes." They just aren't right for each other; they're sure as death and taxes to break up eventually. The two brothers will be forever at each other's throats, as sure as death and taxes. Of course Evelyn got the promotion—it was as sure as death and taxes. She is the boss's favorite, after all.

See also: and, death, sure, taxes

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