Taxes in Marshalltown
Iowa's real, flat 3.8% state income tax applies to Marshalltown residents, alongside Marshall County's own effective property tax rate and Iowa's complex rollback assessment mechanism.
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Learn moreIowa's flat state income tax
Iowa levies a real, current flat 3.8% individual income tax rate for tax year 2026, among the lower top rates of any state that levies one (base record).
Marshall County's effective property tax rate
Marshall County's own median effective property tax rate ran approximately 1.58% (median annual bill ~$1,909) -- above the national median (~1.02%) and roughly in line with Iowa's elevated statewide median (~1.55%) (base record).
Iowa's real property-tax rollback mechanism
Iowa's statewide 'rollback' (assessment limitation) mechanism caps year-over-year growth in aggregate taxable value, so a property's assessed and taxable values can diverge -- confirm the current rollback-adjusted figure directly with the county assessor (base record).
Key takeaways
- Iowa's flat 3.8% state income tax applies statewide to Marshalltown residents.
- Marshall County's effective property tax rate (~1.58%) runs above the national median.
- Iowa's real rollback mechanism means assessed and taxable property values can diverge -- confirm directly.
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