Riley County, KS Vehicle Property Tax & Registration (2026)
In Riley County (Manhattan), the annual motor-vehicle property tax runs about $519 on a car with roughly $14,000 in appraised value — the county's 123.6-mill levy applied to 30% of that value. A one-time 9.15% sales tax applies at purchase, and the base registration fee ($30/$40 by weight) is flat statewide. Manhattan straddles Riley and Pottawatomie counties, so both the mill levy and sales tax can change by address.
Verified July 2026 from official sources. How we verify fees.
What you'll pay in Riley County
- Adjusted mill levy: 123.648
- Est. annual property tax (on a ~$14k car): $519
- Sales tax at purchase (in Manhattan): 9.15%
- Base registration fee: $30 (≤4,500 lbs) / $40 (heavier), statewide
- Title fee: $10 + small statewide surcharges
How the property tax works
Kansas taxes your vehicle every year: appraised value × 30% × Riley County's adjusted mill levy (123.6) ÷ 1,000. The "adjusted" levy leaves out the 20-mill statewide school levy, so it's slightly below the county's full levy. A newer, higher-value car owes more; the estimate above assumes about $14,000 in appraised value. For your exact figure, use the KDOR Vehicle Property Tax Check. Estimate the purchase cost on our Kansas title & tax page.
Frequently asked questions
How much is the annual car tax in Riley County, KS?
About $519 a year on a car with ~$14,000 appraised value, using Riley County's 123.6-mill levy. A newer or pricier car owes more — the tax is value × 30% × levy ÷ 1,000.
What is the sales tax on a car in Riley County?
9.15% in Manhattan (Kansas's 6.5% state rate plus local), charged once at purchase. It's separate from the annual property tax.
How much is vehicle registration in Riley County?
The base fee is the flat statewide amount — $30 for a car 4,500 lbs or less, $40 if heavier, plus a $10 title fee and small statewide surcharges. It doesn't vary by county.