Karl Marx and the Close of His System (German: Zum Abschluss des Marxschen Systems) is an 1896 book critical of the economic writings of Karl Marx by the Austrian economist Eugen von Böhm-Bawerk.

He also attacks Marx for downplaying the influence of supply and demand in determining permanent price, and for deliberate ambiguity with such concepts.

[5] Marxist economist Ernest Mandel identifies Karl Marx and the Close of His System as part of a literature, beginning with German social democrat Eduard Bernstein, that criticizes the dialectical method Marx borrowed from Georg Wilhelm Friedrich Hegel as "useless", "metaphysical", or "mystifying."

[6] Marxist economist Paul Sweezy rejects Böhm-Bawerk's view that the theory of value must be abandoned.

However, he considers Karl Marx and the Close of His System to be the best statement of the argument that the fact that the law of value is not directly controlling in capitalist production requires the rejection of the theory of value.