Franklin County, OH — Property Tax Underwriting Guide
Ohio · Cyclical hold until revaluation
What this means for multifamily underwriting
Franklin County (Columbus) is Ohio's largest and most active multifamily market. Tax = true value x 0.35 x millage. Assessed values typically lag market significantly between reappraisals.
Transaction type breakdown
Ohio conducts a full sexennial (6-year) reappraisal of all real property, with a triennial update in between. A sale does not trigger an off-cycle reassessment.
Refinance has no effect on assessed value.
Ownership transfer does not trigger a reassessment; values follow the sexennial/triennial cycle.
Tax appeal information
58.0 mill applied to 35% of true value yields ~2.0% effective rate on market value.
Guide review
County guidance last reviewed: June 15, 2026
Tax-rate scope: Tax-rate scope is not established as parcel-specific; confirm the parcel's taxing-authority stack.
Official sources: Franklin County Auditor
Sexennial cycle and 35% ratio are statutory and firm; millage is a mid-county estimate.
Parclio estimates are underwriting guidance, not legal or tax advice. Always verify millage rates, the seller's assessed value, and appeal deadlines with the county assessor or local counsel before relying on these numbers for a credit decision.
Run a tax reset estimate for Franklin County
Use Parclio's estimator to model the post-closing tax bill, NOI impact, DSCR change, and underwriting memo language for your next Franklin County deal.