Mahoning County, OH Property Tax Appeal Deadline
In Mahoning County, you challenge your property value by filing a complaint with the County Board of Revision between January 1 and March 31. For tax year 2026 values, the window is January 1 – March 31, 2027. Use form DTE 1.
How to appeal your property value in Mahoning County
| Who decides | Mahoning County Board of Revision |
|---|---|
| Filing window | January 1 – March 31 (complaints must be filed or postmarked by March 31) |
| Next window | January 1 – March 31, 2027, for tax year 2026 values |
| Form | DTE 1, Complaint Against the Valuation of Real Property |
| Next step if denied | Ohio Board of Tax Appeals or common pleas court |
| Official Mahoning County link | https://www.mahoningcountyoh.gov/DocumentCenter/View/46624/Board-of-Revisions-Complaint-Form-Packet |
Common questions
What is the property tax appeal deadline in Mahoning County?
March 31. Complaints for the prior tax year are accepted January 1 through March 31; a mailed complaint must be postmarked by March 31.
Which form do I use?
DTE 1, the Complaint Against the Valuation of Real Property, filed with the County Board of Revision.
Can I file online?
Many Ohio auditors offer online filing; check the Mahoning County Board of Revision link above.
What happens after I file?
The Board of Revision schedules a hearing and mails its decision; you can appeal that decision further.
Related
- Mahoning County, OH property tax rate
- Ohio property tax overview
- Franklin County, OH property tax appeal deadline
- Hamilton County, OH property tax appeal deadline
- Summit County, OH property tax appeal deadline
- Erie County, OH property tax appeal deadline
Last reviewed October 31, 2026. Rules and links come from the official sources shown above. Deadlines can move when a date falls on a weekend or holiday, and your notice shows your exact date – always check it. This page is general information, not tax or legal advice.