Property Tax Appeals in Franklin County, Ohio
Franklin County's next ordinary opportunity is the Board of Revision period for tax-year 2026 values. County sources now conflict more deeply: the Board of Revision's own FAQ and Filing Instructions pages state the period opened August 25, 2026 (already past), while the Treasurer's FAQ states November 20, 2026 and the Auditor's general FAQ states November 30. All agree the period closes March 31, 2027. Confirm the live status directly with the Board of Revision before assuming the window is not yet open. FairPath's owner-guided evidence packet remains available year-round to organize official parcel facts, owner-selected comparisons, condition documentation, and filing questions. It does not submit DTE Form 1, choose the requested value, mediate a case, or attend a hearing.
Assessment context: Franklin County is implementing a 2026 value update, so owners should preserve both the prior value and the new official figure and verify the effective tax year. Review parcel number, owner, taxing district, land and improvement values, class, living area, age, construction, basement, garage, lot, condition, and transfer history. Ohio property values are revisited through reappraisal and triennial-update cycles, but a valuation increase does not translate mechanically into the same percentage tax increase. Franklin includes central Columbus neighborhoods, older inner-ring communities, rapidly growing suburbs, condominium developments, rural townships, and commercial corridors. School district, neighborhood, building type, new construction, renovation, lot, and condition should guide comparisons.
Filing process: When the window opens, download the current DTE Form 1 and Board instructions. Identify the tax year and parcel, complete the owner and value fields, state the requested value and supporting basis, sign the form, and submit by an authorized channel. Franklin's official FAQ and filing page describe email, fax, mail, and delivery options. Keep the sent email, fax confirmation, postal proof, or stamped copy. Attach supporting evidence when possible because the Board's rules prefer evidence with the original complaint. The Board schedules a hearing after filing and may offer mediation in appropriate cases. Review the current notice for hearing format and submission deadlines; opening a draft or discussing the value with the Auditor does not create a Board case.
Evidence to review: Franklin's Board evaluates the evidence supporting the value requested. Build a sales table with parcel, deed date, price, city or township, neighborhood, school district, property type, living area, age, lot, basement, garage, renovation, condition, and transaction circumstances. Use official property records and explain why each sale is comparable around the relevant valuation date. An appraisal, closing record, dated photographs, inspection report, permits, contractor scope, or repair documentation may support the file when its connection to value is explained. The Board's rules restrict opinion evidence from people with a financial interest in the outcome, so distinguish owner facts and properly qualified appraisal evidence from compensated advocacy. Index the exhibits and preserve the exact submission.
Current deadline guidance: Window closes March 31, 2027; county pages disagree on opening (Aug 25, Nov 20, or Nov 30, 2026).. Franklin County's own official pages currently give three different opening dates for the tax-year 2026 Board of Revision period, all closing March 31, 2027: the Board of Revision's own FAQ and Filing Instructions pages both state August 25, 2026 (already past as of September 22, 2026); the Treasurer's FAQ states November 20, 2026; and the Auditor's general FAQ states November 30 with no year given. Because the Board of Revision's own dedicated pages now show a date that has already passed, do not assume the window is still closed -- confirm directly with the Board of Revision before relying on any of these dates.
Franklin's Board-of-Revision-specific FAQ and Filing Instructions pages now state the tax-year 2026 period opened August 25, 2026; the Treasurer's FAQ still lists November 20, 2026; and the Auditor's general FAQ lists November 30. Treat the opening day as unresolved and confirm directly with the Board of Revision before relying on any single date.
The county is processing a 2026 triennial value update, making preservation of old and new parcel values especially useful for the next complaint period.
Franklin accepts complaints by email, fax, mail, or delivery under current instructions, but owners should retain channel-specific proof of receipt.
Board rules prefer evidence with the original complaint and restrict opinion testimony from people whose compensation depends on the case outcome.
Official filing authority: Franklin County Board of Revision. https://auditor.franklincountyohio.gov/Real-Estate/Board-of-Revision/Filing-Instructions
Source: Franklin County Auditor, Franklin County Board of Revision, https://auditor.franklincountyohio.gov/Real-Estate/Board-of-Revision. Reviewed 2026-07-29.
Source: Franklin County Auditor, Franklin County Auditor Frequently Asked Questions, https://auditor.franklincountyohio.gov/Auditor/Frequently-Asked-Questions. Reviewed 2026-07-29.
Source: Franklin County Auditor, Board of Revision FAQ, https://auditor.franklincountyohio.gov/Real-Estate/Board-of-Revision/Board-of-Revision-FAQ. Reviewed 2026-07-29.
Source: Franklin County Auditor, Board of Revision Filing Instructions, https://auditor.franklincountyohio.gov/Real-Estate/Board-of-Revision/Filing-Instructions. Reviewed 2026-07-29.
Source: Franklin County Treasurer, Franklin County Treasurer FAQ, https://treasurer.franklincountyohio.gov/About/FAQs. Reviewed 2026-07-29.
Source: Franklin County Auditor, Franklin Board Rules of Practice and Procedure, https://auditor.franklincountyohio.gov/files/assets/auditor/v/1/documents/real-estate/bor-rules-of-practice-and-procedure.pdf. Reviewed 2026-07-29.
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