Effectively flat at 4.7%
MO's graduated brackets top out at $8,911 of taxable income — anyone earning over ~$24K pays 4.7% marginal. The standard deduction ($15K single, matching federal) does more work than the brackets.
The 1% city earnings tax
Kansas City and St. Louis both charge a 1% earnings tax on wages earned or received in the city — including remote workers living in the city. That's $800/yr on an $80K salary, on top of the state 4.7%.
MO vs. KS border
Kansas tops out at 5.7% (over $30K single). A $90K earner saves roughly $700/yr on the MO side — before the KC 1% earnings tax, which can flip the comparison for city residents.
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Read the guideFAQ
What is Missouri's top income tax rate in 2025?
4.7%, applying to taxable income over ~$8,911. Further triggered cuts to 4.5% are possible if revenue targets hold.
Does Kansas City have its own income tax?
Yes — a 1% earnings tax on wages for anyone working or living in KC. St. Louis has an identical 1% tax.
Does MO tax Social Security?
No. Missouri fully exempted Social Security benefits starting in 2024.
New York City residents pay a separate city income tax; the New York City paycheck breakdown works it into the net figure.
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