How to appeal a Johnson County, KS property assessment
✓ Verified — Last verified October 24, 2026
Filing details published for Johnson County. Match the notice and assessment cycle to the official instructions.
Official appeal instructionsNot tax or legal advice; confirm with your county.
Filing timing
Notice-dependent instructions
An informal real-property appeal is due within 30 days after mailing of the Notice of Appraised Value.
Official source. Verified .
Where to file
Johnson County Appraiser’s Office, ATTN: Hearing Coordinator, 11811 S Sunset Dr., Suite 2100, Olathe, KS 66061; or the appeal portal.
Official source. Verified .
Assessment notice period
Real property Notices of Appraised Value are mailed on or before March 1.
Official source. Verified .
Official offices
Johnson County Appraiser
Sources for these instructions
https://www.jocogov.org/department/appraiser/property-information/important-dates-and-deadlines
Deadline for filing an appeal is 30 days subsequent to the date of mailing of the Notice of Apprised Value (K.S.A. 79-1448).
Verified October 24, 2026
https://www.jocogov.org/department/appraiser/property-information/property-value-appeals
You may submit an informal appeal application through the appeal portal
Verified October 24, 2026
https://www.jocogov.org/department/appraiser/property-information/property-value-appeals
Johnson County Appraiser’s Office ATTN: Hearing Coordinator 11811 S Sunset Dr., Suite 2100 Olathe, KS 66061
Verified October 24, 2026
Continue with your property
Common questions
Where do I file a Johnson County assessment appeal?
Johnson County Appraiser’s Office, ATTN: Hearing Coordinator, 11811 S Sunset Dr., Suite 2100, Olathe, KS 66061; or the appeal portal.
Updated , from cited verification dates. Individual sources may have earlier checks.