The decision
Kansas or Missouri?
It is one road. It is also two tax codes, two school systems, two sets of disclosure laws, and — for most families — a six-figure decision made in an afternoon.
Nobody moves to Kansas City. They move to Brookside, or Overland Park, or Liberty, and only afterwards discover that the choice they made in a weekend has a tax bill attached to it that runs for thirty years. The two states tax you in opposite directions, and which one is cheaper depends entirely on the shape of your household — not on which side of the road has the nicer lawns.
The same house
One road. Two prices.
Kansas · Leawood
$670,000
11.5% assessment ratio
Missouri · South KC
$420,000
19% assessment ratio
Same roofline. Same oak. Same driveway. The road between them is about a mile wide and worth a quarter of a million dollars.
Kansas
Taxes your income harder.
Kansas residential assessment ratio
Kansas top individual income tax rate
Kansas state sales tax rate
Effective property tax rate — Overland Park, Johnson County
Kansas assesses your home at 11.5% of its market value — the lower ratio — and then takes more of your paycheck. It also has open enrollment, which means your address does not necessarily lock your school district. Almost nobody knows this.
Missouri
Taxes your house harder.
Missouri residential assessment ratio
Missouri top individual income tax rate
Missouri state sales tax rate
Effective property tax rate — KCMO in Jackson County
Missouri assesses at 19% — nearly double Kansas — and takes less of your income. Jackson County's 2023 reassessment is still a live wound; ask anyone who owned a house here that year.
And the one that follows you either way
1%
Kansas City's earnings tax is owed by everyone who works in Kansas City, Missouri — including people who live in Kansas.
Move to Leawood to escape it, commute to an office downtown, and you pay it anyway. It follows your desk, not your house. In twenty competitor sites we read, not one said this on the page where it matters.