Dublin homeowners facing an average 10% jump in their tentative 2026 property values have until Sept. 5 to challenge those numbers with the Franklin County Auditor's Office, and the process cannot raise a home's assessed value.
The review window carries particular weight in Dublin, where median home values run roughly $650,000 and effective property tax rates sit around 1.9%, according to recent county data. A 10% increase on a $650,000 home could shift the tax calculation on roughly $65,000 in additional assessed value.
Franklin County Auditor Michael Stinziano said in an Aug. 4 press release that the review is informal and designed to catch errors before values become final.
"We want people to look up their property, check the details and contact us if something does not appear right," Stinziano said in the Aug. 4 announcement.
The auditor's office is offering both in-person and virtual sessions. Virtual meetings are available through Sept. 4. Remaining in-person sessions run Sept. 1–3 at the Franklin County Office Tower (373 S. High St., Columbus, 9 a.m.–5 p.m.) and Sept. 4–5 at Barnett Community Center (1184 Barnett Rd., Columbus, 11 a.m.–7 p.m.).
A Dublin-area session at Discover Christian Church on Martin Road ran Aug. 6–7.
What to bring
Appointments last about 20 minutes. No decision is made on the spot. The auditor's appraisal team reviews submitted information afterward and notifies owners of the outcome.
Helpful documentation includes:
- Recent comparable property sales
- A professional appraisal
- Photos showing the property's condition
- Records of significant repairs
- Information correcting property characteristics listed by the auditor
Property owners who cannot attend a session may submit documents online through the auditor's Know Your Home Value site.
What happens next
After the review period closes Sept. 5, values go to the Ohio Department of Taxation for review. Final assessed values are expected in December. Homeowners who still disagree at that point can file a formal complaint with the Franklin County Board of Revision.
Stinziano noted that a change in appraised value does not translate directly into an equal change in taxes. Tax bills also depend on local rates, voter-approved levies, exemptions and how values shift across a taxing district.
As we reported Aug. 4, commercial property owners face the same Sept. 5 deadline, though commercial values rose an average of about 4% countywide compared with 10% for residential properties.
Countywide, fewer than half of 1% of the nearly 500,000 parcel owners had requested a review as of the auditor's Aug. 4 announcement.
Upcoming Dublin events
- Midweek Music: Wednesdays through Aug. 19, 6–8 p.m., Riverside Crossing Park, 6625 Riverside Dr.
- Dublin City Schools first day (K–12): Thursday, Aug. 20
- Deer removal public session: Tuesday, Aug. 25
