Leavenworth County, KansasProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Tax bill mailing
- On or before March 1, 2026 for real-estate Change of Value Notices; the reviewed county sources did not publish a specific tax-statement mailing day.
- Payment deadline
- First-half 2026 property taxes are due December 20, 2026; second-half taxes are due May 10, 2027, to avoid penalty.
- Assessment appeal
- Within 30 days of the mailing date of the 2026 real-estate Change of Value Notice; the county's published appraisal calendar controls.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
April 15, 2026, for 2025 Kansas Homestead, SAFESR, or K-40SVR property-tax relief claims.
Senior relief
Kansas SAFESR (K-40PT) may refund 75% of timely paid principal-residence property tax for qualifying homeowners age 65+ with 2025 household income of $25,380 or less and a home valued at no more than $350,000; Kansas also offers K-40SVR relief for qualifying seniors and disabled veterans.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.