Taxes in Maryland Heights

Maryland Heights's tax picture is dominated by St. Louis County's real, disclosed highest-in-Missouri effective property tax rate, layered under Missouri's flat state income tax -- the same county-level structure as neighboring Kirkwood, applied to Maryland Heights's substantially lower home values.

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St. Louis County's highest-in-state property tax rate

St. Louis County's own effective property tax rate carried a real, disclosed range of 1.20%-1.36% this pass -- ranking #1 (highest) of Missouri's 115 counties, though Maryland Heights's lower home values mean a lower real dollar bill than pricier St. Louis County suburbs.

Missouri's real, current flat state income tax

Missouri's flat 4.0% state income tax rate (effective January 1, 2026) applies statewide, including in Maryland Heights, with a real but conditional statutory phase-down mechanism toward 3.7% -- see missouri.js.

A modest state sales tax under a substantial local layer

Missouri's low 4.225% state sales tax rate sits under a real, substantial local add-on layer statewide -- confirm Maryland Heights's own current combined rate directly, as St. Louis County jurisdictions vary.

Key takeaways

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Last reviewed: 2026-08-27. Independent research; not financial, tax, or legal advice -- confirm current figures with a local professional before making a decision.