Find the county first, then search its official portal by address, owner, or parcel number.
A homestead exemption, senior-relief program, or valuation protest can change the amount a homeowner owes—but only if the filing reaches the right local office in the correct window. Use the reviewed county guidance below as your working checklist, then confirm the current form and deadline with Clark County Auditor (Hillary Hamilton) / Clark County Treasurer (Michelle R. Harris).
The filing guidance for this county is: Clark County Auditor states DTE 105A applications are accepted after January 1 and on or before December 31 of the year of application; the official form is for the 2026 homestead cycle. Use the official form or application channel, provide the residence and ownership documentation requested, and keep a copy of the submission.
Open homestead application (opens in a new tab)Ohio homestead reduction for qualifying homeowners age 65+, permanently and totally disabled homeowners, and eligible surviving spouses; 2026 applicants are subject to the current Ohio modified-AGI limit of $41,000 for 2025 income, must own and occupy the property as the principal residence on January 1, and file DTE 105A with the county Auditor.
No general county parcel-value cap was published. Ohio assesses real property at 35% of market value, reappraises every six years with triennial updates, and applies HB 920 reduction factors and the 10-mill limitation; House Bill 186 (effective March 20, 2026) creates an inflation-cap credit for qualifying property and taxing districts, shown on eligible 2026 bills.
Use the valuation notice and the county’s published protest guidance to determine the last day to file. Do not assume the payment deadline controls the appeal.
Gather comparable sales, photographs, repair records, appraisal evidence, property characteristics, and any documentation that explains why the assessed value is incorrect.
Submit through the official channel, save the confirmation, and attend the board or review hearing if one is scheduled. An appraiser or attorney can help evaluate evidence when the value or stakes are substantial.
The reviewed protest guidance for this county is: Clark County Auditor states Board of Revision value-appeal forms may be filed January 1 through March 31, 2026 for the 2025 tax year. If the language is not a specific calendar date, contact the office promptly for the current notice and board-review schedule.