Ohio’s long-debated property tax reboot officially lands Friday, March 20, 2026, in the form of a sweeping package that lawmakers say will provide roughly $3 billion in relief. The five-bill overhaul rewrites how valuations work, reins in the growth of school levies and so-called inside millage, and hands more discretion to county officials. Homeowners will start to see some credits on mid-year tax statements, but many of the biggest changes will not show up on most bills until 2027.
The reforms are packed into five House measures — HB 124, HB 129, HB 186, HB 309 and HB 335 — that Gov. Mike DeWine signed in December and that begin rolling out this week. As outlined by the Ohio Legislature, the new laws change which sales can be used to value property, cap automatic growth on certain school levies and inside millage, and expand owner-occupancy credits. Republican sponsors pitched the package as a way to soften sharp post-reappraisal spikes and give taxpayers a bit more predictability from year to year.
What changed
For homeowners, the most concrete change is a new inflation-cap credit that limits how much a school-district tax bill can jump after a reappraisal. The package also widens the owner-occupancy credit and gradually cuts back the nonbusiness credit that currently benefits rental and other non-owner-occupied property. County auditors gain more leeway to decide which sales get used in mass appraisals under the “Flip the Script” rules. The Butler County Auditor has published a guide that walks through the new credits, caps and the staggered implementation schedule.
When you’ll see it
The timing is intentionally spread out. County officials say the inflation-cap credit will first appear on second-half 2025 bills that are paid in 2026. The enhanced owner-occupancy benefit and the new caps on inside millage will not affect most homeowners until tax year 2026 bills, which are mailed in 2027. An alert from Roetzel & Andress notes that the phase-in is designed so that relief builds over several years instead of hitting all at once. Analysts expect the largest household savings to show up from 2027 through 2029 as the various credits fully phase in and some districts move off the 20-mill floor.
How big the savings are
House Republicans estimate the package will deliver more than $3 billion in property tax relief over the next several years, according to the Ohio House of Representatives. County auditors and local guides, looking at their own data, generally peg the likely range at about $2 billion to more than $3 billion statewide. That spread reflects differences in each county’s reappraisal cycle, which levies count toward the 20-mill floor, and the timing of when credits hit tax bills. WLWT and other statewide coverage have tracked both the big savings claims and the pushback from local officials who are eyeing the other side of the ledger.
Impact on schools and local governments
State fiscal notes reviewed by legal analysts warn that the reforms will trim some local revenue. Legislative Service Commission estimates, as summarized in a legal analysis, suggest HB 129 could reduce school district receipts by roughly $162 million in tax year 2026, and HB 335 could cut about $120 million to $135 million from inside-millage collections that same year. In plain language, some districts may end up asking voters to approve replacement levies or may have to pare back spending if the numbers do not pencil out. The breakdown from Roetzel & Andress stresses that the impact will not be uniform, with some counties feeling the squeeze more than others.
What homeowners should do now
Homeowners should keep an eye on their second-half property tax bills to see whether an inflation-cap credit appears and to confirm that statements clearly show the “paid in” year. County auditors are responsible for calculating and applying the new credits, according to the Cuyahoga County Auditor. If a bill looks off, residents are urged to call their county auditor’s office and review local levy information online. With automatic growth slowed for some levies, districts that need more funding may turn to voters for replacement measures, so local ballot questions will matter even more. County auditor websites and local guides are posting checklists, explainer pages and contact information to help taxpayers sort out what they are seeing…