Ottawa County, OhioProperty 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
- Second-half 2025 real-estate bills mailed July 7, 2026; first-half mailing date was not published.
- Payment deadline
- 2025 real-estate taxes payable in 2026: first half due February 19, 2026; second half due August 6, 2026. Manufactured-home first half was due March 5, 2026 and second half August 6, 2026.
- Assessment appeal
- January 1–March 31, 2026; Ottawa County's Important Dates page states the 2026 Board of Revision filing window and that it has ended.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
December 31, 2026 for a 2026 real-property homestead application under Ohio's DTE 105A schedule; file with the county Auditor.
Senior relief
Ohio Homestead Exemption: qualifying homeowners age 65+, permanently and totally disabled homeowners, eligible surviving spouses, and qualifying 100% service-connected disabled veterans may apply. The home must be owned and occupied as the principal residence on January 1. New senior/disabled applicants generally must have 2025 Ohio MAGI of $41,000 or less for the 2026 application period; the standard homestead reduction shields up to $29,000 of market value and enhanced disabled-veteran relief has separate requirements.
Valuation limits
Ottawa County's HB 186 notice says the Inflation Cap Credit affects qualifying 2025 payable-2026 tax bills; Ohio HB 920 reduction factors and the 10-mill limitation also apply. These are tax credits/limitations, not a general parcel-value cap.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.
More exemption & appeal guidance →