A prior Franklin County reappraisal raised home values by an average of 41 percent. That mailer landed and most homeowners stared at the number for a minute and put it on the kitchen counter. Now the 2026 triennial update is in the mail. New mailer, new number, same kitchen counter.
If you live in Westerville and you are even thinking about selling in the next twelve months, what that number means for your listing strategy is not what most people think. The auditor's value is not your list price. It is not what an appraiser will hand the buyer's lender. And it is not what your neighbor's offer should be benchmarked against. It is a tax number. It is one of three different numbers attached to your house, all of which are correct depending on who is asking. Here is how to read it.
What just hit your mailbox
Ohio law mandates a full property reappraisal in every county every six years, with a triennial update at the midpoint. Franklin County's last full reappraisal was 2023, when residential values jumped an average of 41 percent. The 2026 triennial update is happening right now, with notices mailing through spring and early summer.
The number on the notice is the auditor's market value for tax purposes. It is what the county uses to calculate your 2026 tax bill, payable in 2027. If you want to appeal the new value, the deadline is March 31, 2027 through the Franklin County Board of Revision. That part is simple. The strategic question is what to do with the number once you have it.
Three different numbers, one piece of mail
Your home has three different values right now, and they almost never match.
The first is the auditor's market value, the number you just received. The county uses mass-appraisal models that lean on area sales, square footage, lot size, age, and recorded characteristics. It does not factor in your finished basement that was never permitted, the kitchen you redid two years ago, or the fact that your roof is on year 22 of a 25-year shingle. It is a number generated by a model, not a walkthrough.
The second is the appraised value a licensed appraiser hands the buyer's mortgage lender after your home goes under contract. That comes from a physical inspection plus three to five hand-picked sold comparables within a half mile. It is the number the loan closes on, and it is almost never the same as the auditor's value.
The third is the list price, the number you and I agree on when you decide to sell. The list price is built from active comparable listings, under-contract activity, recent solds at your price tier, and current days-on-market data for your street. Sometimes it sits above the auditor's value, sometimes below. The relationship is not mechanical.
The mistake most homeowners make is using number one to argue about number three. That conversation goes the wrong direction in negotiation almost every time.
When a higher reappraisal helps you sell
A higher new auditor's value does three things in your favor. It confirms the equity story in a refinance, HELOC, or cash-out conversation, because lenders cross-reference auditor values as a sanity check. It takes the easy "the county says it is worth less" line off the table for a buyer's agent when the auditor's value is north of your list price. And in a comp pool where most homes have not transacted in years, the new auditor's value is a public data point your buyer already sees on the portals, so a higher number registers before they ever click your listing.
When a higher reappraisal hurts you
It hurts in exactly one scenario, but it hurts a lot. If your tax bill jumps with the new value, the monthly carrying cost for the next owner moves with it. A buyer running numbers at current rates sees the higher tax escrow line and either offers less or moves to a different home with the same list price and a lower tax bill. The new value is not a problem for your equity. It is a problem for affordability math at the buyer's table.
This is the conversation a lot of Westerville homeowners are about to have, because the effective rate here is already on the high end relative to Ohio's median Westerville effective property tax rate. A double-digit jump in valuation translates to a real-dollar increase in what a buyer is underwriting, and that moves the demand curve for your house at your current price.
The appeal question
You can appeal the new value through the Franklin County Board of Revision until March 31, 2027. The process is free to file and simpler than people expect. The evidence that works is recent comparable sales (within a year, within a half mile, same property type), a private appraisal if you have one, photos of condition issues the model would not have captured, and a clean record of physical characteristics if the county has anything wrong.
When to file an appeal:
- The new value is more than 10 to 15 percent above what comparable sold homes near you actually fetched in the last 12 months.
- The auditor's record has wrong square footage, wrong bed or bath count, or wrong lot size that inflates the value.
- The model did not adjust for a real condition issue that affects use or marketability.
When to leave it alone:
- The new value tracks within 5 to 10 percent of what your home would actually list for right now.
- You plan to sell within the next 24 months. A successful appeal that lowers your tax value can lower your effective listing-price ceiling in a buyer's mind, especially when the auditor's record is visible on the portals.
- You refinanced in the last 18 months at a value at or above the new auditor's number.
The appeal decision is its own strategy call. The honest answer is "it depends," and the variables are specific to your house and your timeline.
How this changes the listing conversation
If you are planning to list a Westerville home in 2026 or early 2027, the new auditor's value will show up in three conversations whether you want it to or not. It reshapes the prorated tax credit in your seller's net sheet. It can show up in offer language when a buyer's agent anchors on the public number. And it can show up in the appraisal itself as a secondary data point lenders look at when an appraisal lands at the edge of the loan amount.
None of that means you should price differently. It means you should price knowing those three pressure points exist, with comps from your specific block, not from the auditor's mass model.
I am not a tax attorney and I am not a county appraiser. If you are filing an appeal, talk to someone who does that for a living, or follow the Board of Revision's documented process. What I can tell you is what the new value does to your listing strategy in Westerville, because that part is my job. If you got the mailer and want to know what it does to a sale this year, send me your address and the new auditor's value. I will pull the actual sold comps within a half mile and tell you whether the new value helps or hurts your listing math.
For the full how-to on filing, see my Central Ohio property tax appeal walkthrough, and there is more on the local market on my Westerville guide.
Adam Geuy at NextHome Experience. 937-239-2919.