Knox County, MissouriProperty 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.
- Payment deadline
- For the 2026 tax year, Missouri real-estate and personal-property taxes are due December 31, 2026; payment must be received or postmarked by December 31 to avoid statutory penalty and interest.
- Assessment appeal
- July 13, 2026 (the second Monday in July), the statutory local Board of Equalization valuation-appeal filing deadline; Knox County’s official schedule lists a Board of Equalization hearing for July 20, 2026. Missouri State Tax Commission complaint is due September 30, 2026, or within 30 days after the Board decision, whichever is later.
Exemptions & appeals
Exemption filing
No general Missouri homestead exemption was verified. 2026 personal-property assessment lists are generally due March 1, 2026; late filing can incur the statutory penalty.
Senior relief
No separate countywide senior property-tax credit was verified in official county sources reviewed. Eligible Missouri seniors and 100% disabled individuals may apply for the Missouri Department of Revenue Property Tax Credit, subject to state eligibility and income limits: https://dor.mo.gov/taxation/individual/tax-types/property-tax-credit/.
Valuation limits
No general local annual valuation cap was verified. Missouri real property is generally reassessed in odd-numbered years; statutory assessment ratios are 19% residential, 32% commercial, and 12% agricultural. New construction and qualifying changes are assessed annually. A county senior tax credit, where authorized, limits tax liability rather than market or assessed value.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.