How to appeal a Franklin County, OH property assessment
✓ Verified — Last verified October 24, 2026
Filing details published for Franklin County. Match the notice and assessment cycle to the official instructions.
Official appeal instructionsNot tax or legal advice; confirm with your county.
Filing timing
Notice-dependent instructions
This window concerns tax year 2026 valuations. The tax year 2025 appeal period has passed.
Official source. Verified .
Where to file
Franklin County Auditor’s Office, Board of Revision.
Official source. Verified .
Official offices
Franklin County Auditor
Sources for these instructions
https://treasurer.franklincountyohio.gov/About/FAQs
Applications to appeal the valuation of your property for tax year 2026 will accepted from November 20, 2026, until March 31, 2027, by the Franklin County Auditor's Office.
Verified October 24, 2026
https://treasurer.franklincountyohio.gov/About/FAQs
Applications to appeal the valuation of your property for tax year 2025 has already passed. Applications to appeal the valuation of your property for tax year 2026 will accepted from November 20, 2026, until March 31, 2027, by the Franklin County Auditor's Office.
Verified October 24, 2026
https://auditor.franklincountyohio.gov/Real-Estate/Board-of-Revision
Board of Revision
Verified October 24, 2026
Continue with your property
Common questions
Where do I file a Franklin County assessment appeal?
Franklin County Auditor’s Office, Board of Revision.
Updated , from cited verification dates. Individual sources may have earlier checks.