When Is the Next Franklin County Reappraisal? 2026 to 2030

Franklin County homeowners got a lot of mail after the 2023 reappraisal. Values jumped and tax bills followed. Then in January 2026 the state changed the reappraisal schedule for 16 Ohio counties, including Franklin, and a lot of owners assumed that meant their values were frozen. They weren't. The 2026 triennial update went out this summer.

When Franklin County owners ask me about this, I tell them what changed, what stayed the same and what it means if you own a home in Westerville or anywhere else in the county. This update adds the dates and numbers from the 2026 cycle as it played out.

What changed in Franklin County's reappraisal schedule?

Ohio law requires a full reappraisal every six years, with a triennial update at the midpoint. The Franklin County Auditor's appraisal page describes it the same way, and that framework is intact.

What changed is the timing. On January 15, 2026, the Ohio Department of Taxation announced that 16 counties would have their reappraisals moved back one year. Franklin is one of them, so its next full reappraisal is now in 2030 instead of 2029. The department said the change followed a recommendation from the Governor's Property Tax Working Group and is meant to ease the burden on taxpayers and county auditors, with the realignment set up so a new statewide schedule can begin in 2028.

The earlier version of this post said the state shifted the schedule to improve the "sales ratio" method that drew criticism after 2023. I couldn't find that reason in the state's announcement, so I took it out.

What does the Franklin County timeline look like now?

The calendar below runs from the 2023 reappraisal through the 2030 one, using the Auditor's and the state's own dates.

Date	What happens	Source
2023	Full reappraisal with a complete exterior inspection of each parcel	Franklin County Auditor
January 15, 2026	State moves Franklin's next full reappraisal from 2029 to 2030	Ohio Department of Taxation
2026 (June)	Tentative 2026 values posted online and mailed	Franklin County Auditor
July to September 5, 2026	Property Value Review sessions with Auditor's staff	Franklin County Auditor
August 25, 2026	Board of Revision filing season for tax year 2026 opens	Franklin County Auditor
2026 (December)	2026 values finalized	Franklin County Auditor
Calendar year 2027	Tax bills for tax year 2026 (the new values) are paid	Franklin County Auditor, BOR FAQ
March 31, 2027	Deadline to file a Board of Revision complaint for tax year 2026	Franklin County Auditor
2028	New statewide reappraisal schedule begins	Ohio Department of Taxation
2030	Next full reappraisal in Franklin County	Ohio Department of Taxation, Franklin County Auditor

Sources: Ohio Department of Taxation release of January 15, 2026; Franklin County Auditor appraisal page, January 15, 2026 and August 4, 2026 news releases, and Board of Revision filing instructions and FAQ, all read October 8, 2026.

The earlier version of this post said the Auditor typically mails updated values in late summer or early fall. For 2026 the Auditor's January announcement set June for tentative values, so that line was wrong for this cycle and I fixed it.

How much did values change in the 2026 triennial update?

The 2026 update is a data review. The Auditor's office looked at arm's-length sales from 2023, 2024 and 2025 and updated values for every parcel, without the full exterior inspection it did in 2023. The office describes the county as having nearly 500,000 parcels.

WSYX reported on September 11, 2026 that the average residential value rose 10% in this update and commercial values rose an average of 8%. Auditor Michael Stinziano told the station the increases were much lower than the spike several years ago. That 10% is an average. Some neighborhoods moved more, some less, and an update can hold a value flat or lower it when sales in an area softened.

If your notice came in higher than what similar homes around you have sold for, that's an argument. If it came in close to or under recent sales, an appeal is usually a waste of time, because the other side can use the same sales against you.

Will a 10% value increase raise my tax bill 10%?

No, and the Auditor says so directly. In its August 4, 2026 release, the office wrote that a change in the Auditor's appraised value does not result in an equal percentage change in property taxes. Tax rates, voter-approved levies, exemptions and how values changed across your taxing district all feed into the bill.

The mechanics start with your assessed value, which is 35% of the Auditor's appraised value. A home appraised at $350,000 is assessed at $122,500. Raise the appraisal 10% to $385,000 and the assessed value becomes $134,750. Then the levies are applied to that assessed value.

Ohio's House Bill 920 tax reduction factors are the reason a 10% jump doesn't flow straight through. On most voted levies, when values rise across a taxing district, the effective rate drops so the levy doesn't collect more just because values went up. So what matters is how your value moved compared with your district. If yours rose about as much as everyone else's, your bill moves much less than 10%. If yours rose a lot more, you carry more of the load. New levies and renewals voters approve are a separate push upward, and that side has nothing to do with the reappraisal.

To give you a sense of where bills sit today, I pulled the tax-year-2025 bills attached to homes that sold in Franklin County in 2026 and compared each one to the sale price.

Mailing city (Franklin County)	2026 resale closings with TY2025 tax data	Median annual tax bill	Median sale price	Median bill as % of sale price
Blacklick	71	$7,132	$440,000	1.54%
Canal Winchester	57	$4,633	$336,300	1.39%
Columbus	1,393	$4,067	$320,000	1.31%
Dublin	130	$9,548	$582,500	1.62%
Galloway	57	$3,774	$335,000	1.14%
Grove City	179	$4,346	$353,000	1.23%
Hilliard	139	$7,038	$416,000	1.68%
New Albany	89	$11,866	$780,000	1.57%
Reynoldsburg	75	$3,567	$275,000	1.34%
Upper Arlington	67	$10,974	$715,000	1.48%
Westerville	194	$6,446	$435,000	1.53%
Worthington	52	$8,902	$549,951	1.65%
All Franklin County	2,631	$5,414	$382,000	1.40%

Source: Columbus REALTORS MLS export, Franklin County single family resales (New Construction = N) sold January 1 to September 21, 2026, with Tax Year 2025 and annual taxes over $100, deduplicated by list number, excluding sales under $40,000 or under 400 square feet. Cities are MLS mailing cities with 40 or more sales, listed alphabetically. Medians. These are tax-year-2025 bills, before the 2026 update.

Two cautions on that table. A mailing city isn't a taxing district, so two homes with a Columbus mailing address can sit in different school districts with different levies. And these bills reflect 2023 reappraisal values. Tax year 2026 bills, paid in 2027, will be the first to carry the new values. For a parcel-level answer, my posts on Columbus property taxes by ZIP code and Franklin County property taxes in 2026 go deeper.

What did not change under the new schedule?

A few things owners assume changed when the schedule shifted.

Your right to appeal. After every update or full reappraisal, you can challenge your value. The informal Property Value Review sessions ran through September 5, 2026. The formal route is a Board of Revision complaint, and the Auditor's August release says owners who still disagree after final values are issued may file one. There's a step-by-step appeal playbook for the 2026 values.

The Auditor's job. The Auditor still has to reflect market value using sales. The shifted schedule doesn't change the standard.

The 2026 update counts. The 2030 move did not freeze values. The 2026 update set new values for every parcel, and those values carry forward until the 2030 reappraisal. A successful appeal or a change to the property itself can still move an individual parcel in between.

Why does the one-year delay matter for planning?

The next big reset is a year later. A full reappraisal includes a parcel-by-parcel review, like the complete exterior inspection the Auditor did in 2023. Moving that from 2029 to 2030 means the 2026 update values likely sit on your bill for one more tax year than they would have.

Selling between 2027 and 2029 is cleaner. If you list in that window, buyers and their lenders will be looking at tax bills based on 2026 update values, without a fresh reappraisal landing mid-deal. That keeps the tax estimate on the listing and the proration at closing more predictable.

Buyers should still ask. If you're buying a home whose value was far under market in the 2026 update, the 2030 reappraisal is when that tends to catch up. I look at the Auditor's value next to the contract price on every purchase for that reason.

How do I file a Board of Revision complaint for 2026?

The Auditor's filing instructions spell it out. The tax year 2026 season opened August 25, 2026 and closes March 31, 2027. E-filing is the quickest and sends you an email confirmation. You can also email a scanned form to BOR@franklincountyohio.gov or file in person, by mail or by fax at 373 S. High St., 20th floor. The form no longer has to be notarized in Franklin County.

What wins is evidence. Recent arm's-length sales of similar homes near you, an appraisal, or photos of condition problems the Auditor's data wouldn't show. The Board hears value disputes, not complaints about the tax rate. After the Board decides, Ohio law gives a 30-day appeal period. My Central Ohio property tax appeal guide covers what to gather.

If you live in your home, also make sure you're getting the owner-occupancy credit and, if you qualify, the homestead exemption. Those don't depend on the reappraisal. The details are in my Franklin County homestead exemption post.

Does the Franklin County schedule apply to all of Westerville?

Only the Franklin County side. Westerville crosses into Delaware County, and the ZIP codes split along that line more cleanly than people expect. In 2026 Columbus REALTORS MLS data, 520 of the 522 single family sales in ZIP 43081 were in Franklin County. All 221 sales in ZIP 43082 were in Delaware County.

The earlier version of this post said both 43081 and 43082 sit in Franklin County. That was wrong for 43082, and I corrected it. If you're in 43082, or north of the county line in Lewis Center or Powell, the Delaware County Auditor's calendar applies to you, not Franklin's. My Westerville property tax guide breaks down both sides.

School district levies layer on top either way. Your total bill is your assessed value times the combined effective rates of your school district, city or township, county and other levies. The reappraisal schedule moves the Auditor's value. The levy side moves at the ballot box.

Where this leaves Franklin County owners

The full reappraisal moved to 2030, but the 2026 update already reset values, with residential values up about 10% on average. Final values land in December, the new values hit bills paid in 2027, and the Board of Revision deadline is March 31, 2027. If your value came in higher than the market supports, that window is your tool.

For any parcel in Westerville or the greater Columbus area, I'm happy to walk through the timing, pull comparable sales and help you figure out whether a Board of Revision filing makes sense. Book a time at calendly.com/adam-geuy or call 937-239-2919.

Adam Geuy, Realtor, Blacktree Realty | ABR, PSA, SRS | License #2020007964

I read these schedules when they change because clients call me the week the mail arrives. The appraised value moving does not move your bill by the same proportion, and most owners don't hear that from anyone.