How Much Are Property Taxes in Westerville, Ohio? 2026 Rates by District

If you're shopping for a home in Westerville, the number most listings never mention is the tax district. On the Franklin County Auditor's tax year 2025 rate report, a $510,000 house inside the City of Westerville with Westerville City Schools carries about $11,350 a year in property tax before credits, about $9,931 after the 12.5% owner-occupied credits. Move that same house across the corporation line into unincorporated Blendon Township, still Westerville schools, and it carries about $12,972. Put it inside Columbus city limits with Westerville schools and it drops to about $9,977. Same price, same school district, a $2,995 yearly spread before credits. That boundary doesn't show up in the listing photos.

Then buyers get to closing and see the escrow breakdown.

This is the guide I walk through with every buyer I work with in Westerville before they submit an offer. By the end, you'll understand how Ohio's system works, what each Westerville-area district charges, and how to pull the exact tax record for any address yourself before making a decision.

How do Ohio property taxes work?

Ohio's system trips up buyers who move here from other states. A few things to know before the numbers make sense.

Your property tax is not based on what you paid. It's based on the assessed value, which Ohio sets at 35% of the county auditor's appraised value. Buy a home for $800,000 and the auditor appraises it at $800,000, your assessed value for tax purposes is $280,000. That assessed value is what gets multiplied against the mill rate to produce your bill.

Ohio expresses property taxes in mills. One mill equals $1 of tax per $1,000 of assessed value. So if your assessed value is $280,000 and your effective rate is 80 mills, your gross tax is $22,400 before credits. Two credits apply automatically to a primary residence through tax year 2025: the 10% non-business credit and the 2.5% owner-occupancy rollback. Starting with tax year 2026, billed in 2027, House Bill 186 raises the combined owner-occupied rollback to 15.38% over four years and phases the non-business credit out on property that is not your primary residence. If you are buying a Westerville rental, model the bill without that 10 percent.

Your total mill rate is not a single number set by one entity. It's the sum of levies from every taxing entity that covers your address: Franklin County or Delaware County, the city or township, the school district, library levies, and other special district assessments stacked on top of each other. The school district component is typically the largest single piece, often 40 to 60 percent of the total. That's why which school district your address falls in matters so much to the final bill.

The Franklin County Auditor and Delaware County Auditor update appraisals on a rotating cycle. A triennial update adjusts for market changes every three years. A full sexennial reappraisal happens every six years. If you're buying in a neighborhood where values have run up significantly, your assessed value, and therefore your tax obligation, can increase at the next update cycle even if mill rates hold flat.

What does Westerville's tax geography look like?

Westerville straddles two counties and multiple school districts. Understanding that geography is the first step to understanding your bill.

Most of Westerville sits in Franklin County. A meaningful portion of the northern and northeastern city, particularly newer development in the Genoa Township area, falls in Delaware County. Each county has its own auditor with its own appraisal methodology and its own county-level mill rates. If you're looking at homes north of Schrock Road, verify the county before you assume a tax number.

The school district piece is where differences become pronounced.

Most Westerville addresses fall in the Westerville City School District. Portions of northern Westerville and Genoa Township fall under Big Walnut Local School District. Portions of western Westerville, closer to the Powell and Lewis Center corridor, can fall under Olentangy Local School District. Always verify the assigned school district for any specific address with the county auditor, since district boundaries don't always match city boundaries.

A Westerville mailing address can sit inside the City of Westerville, inside the City of Columbus, or in unincorporated Blendon, Plain or Sharon Township. Each of those carries a different levy stack on top of the same school district, and almost nobody prices that in.

What does each Westerville-area district charge in 2026?

These are the Franklin County Auditor's effective residential rates for tax year 2025, which is what you are billed in 2026. The dollar figures apply the 35% assessment and nothing else. They are the bill before the owner-occupied credits, which is how the auditor publishes them and how the Dublin post next door shows them. Knock 12.5% off any cell for a primary residence through tax year 2025.

Franklin County district	Effective residential mills	$300,000 home	$430,000 home	$510,000 home	$700,000 home
600 City of Columbus, Westerville City Schools	55.90	$5,869	$8,412	$9,977	$13,695
111 Blendon Township, Columbus, Westerville City Schools	56.50	$5,932	$8,503	$10,085	$13,842
080 City of Westerville, Westerville City Schools	63.59	$6,677	$9,570	$11,350	$15,579
081 City of Westerville, Blendon Township portion	64.19	$6,740	$9,660	$11,457	$15,726
227 City of Columbus, Plain Township, Westerville City Schools	64.88	$6,812	$9,764	$11,580	$15,895
221 Plain Township, Westerville City Schools	66.80	$7,014	$10,053	$11,924	$16,366
252 Sharon Township, Westerville City Schools	68.32	$7,173	$10,282	$12,195	$16,738
110 Blendon Township, Westerville City Schools	72.67	$7,630	$10,937	$12,972	$17,804

Source: Franklin County Auditor, tax year 2025 composite effective residential rates (RT102), computed at 35% of appraised value, before the 10% non-business credit and 2.5% owner-occupancy rollback.

Two things jump out of that table.

First, the school district is the same on every row. The 16.77 mill spread between the top and bottom is entirely city and township levies. Unincorporated Blendon Township carries its own police, fire and road levies on the tax bill. The City of Westerville carries some of the same services on the property tax and some through its municipal income tax. Columbus funds more of its services through income tax, so a Columbus-taxed parcel in Westerville schools shows a lower property tax line. The income tax is a separate line in your budget and it depends on where you work as much as where you live, so compare the whole picture, not just this table.

Second, the old rule of thumb that Westerville taxes run "roughly one and a half percent of value" undershoots. At the 080 rate a $510,000 primary residence is about 1.9% of appraised value per year after credits. At the 110 rate it is about 2.2%.

Delaware County addresses in Big Walnut or Olentangy territory use the Delaware County Auditor's rate table, not this one. Pull the parcel record for those before you assume a number.

How do you pull the exact tax record for a Westerville address?

You don't have to guess. Both counties publish free online tools to look up the current tax record for any parcel.

For most Westerville addresses, use the Franklin County Auditor's website. Search by address to find the auditor's appraised value, the assessed value, the current year tax charges, and the full breakdown by taxing entity. The tax district code on that record is the number in the table above. For homes in northern Westerville or Genoa Township, use the Delaware County Auditor's site instead.

When you pull the record, look at a few specific things. The current year taxes paid is your most reliable forward-looking estimate. If you're purchasing above the auditor's current appraised value, expect that value to be adjusted upward at the next triennial or sexennial update and budget accordingly. Some properties also carry special assessments for roads, sewers, or lighting districts that appear separately from the regular levy. These are often temporary but can add several hundred dollars per year for a defined period.

Who qualifies for Ohio's Homestead Exemption?

If you're purchasing a Westerville home as your primary residence and you are 65 or older, or permanently and totally disabled, you may qualify for Ohio's Homestead Exemption. Qualifying homeowners receive an exemption on $25,000 of the home's market value for the purpose of calculating the tax bill. On a $700,000 home in the 080 district, that works out to about $556 a year before credits. Applications are filed with the county auditor. The 2.5% owner-occupancy rollback applies automatically for any owner-occupied primary residence and does not require a separate application.

How do taxes factor into a purchase decision?

For buyers in the $500,000 to $1 million range, property taxes are not a rounding error. They're a meaningful ongoing cost that affects the true cost of ownership.

When my clients are choosing between Westerville and neighboring communities, Dublin, New Albany, Powell, or Upper Arlington, the tax profile of each market is part of the conversation. Dublin's 2026 property tax rates make a useful side-by-side, and the answer surprises people. On the same Franklin County rate report, City of Westerville with Westerville City Schools carries 63.59 effective residential mills. City of Dublin with Dublin City Schools carries 69.76. At the same appraised value, Westerville is the lower bill of the two, by about $1,102 a year on a $510,000 house and about $1,513 on $700,000, before credits. That is a rate comparison at equal value, not a comparison of the houses a budget buys in each city, which is a different question.

If you're buying a home you plan to hold for five to seven years, the cumulative property tax obligation over that period is worth calculating explicitly. At about $9,931 a year after credits, a seven-year hold means $69,517 in taxes paid, a significant component of total cost of ownership alongside mortgage interest, maintenance, and eventual transaction costs on the sale. Assessment increases at each reappraisal cycle mean the obligation on a home purchased today may look different in year eight or ten.

Ohio homeowners also have the right to appeal the county auditor's appraised value if they believe it's too high. Appeals are filed with the county Board of Revision. The process is accessible without an attorney, though representation can make sense on higher-value properties where the dollar stakes justify the cost. My Central Ohio property tax appeal walkthrough covers when and how to file.

What should a Westerville buyer do with this?

Property taxes in Westerville are one of the most underestimated variables in the homebuying process. They don't show up in the listing price. They don't come up on a tour. But they land in your escrow every month and compound over the entire time you own the home.

The good news: they're fully knowable before you make an offer. Both county auditors publish this data for free, and any experienced Westerville buyer's agent should be flagging the tax district of every home you're seriously considering, not just the sticker price.

When you work with me, that analysis is built into the process. We look at the real carrying cost of every property, taxes, HOA fees, any special assessments, everything that affects what you're paying month to month and year to year. Because getting the right price on the right day matters, but so does fully understanding what you're buying into for as long as you own it.

If you are weighing a specific Westerville address, send me the address and I will pull the parcel record and the district rate before you write anything. Reach me at 937-239-2919 or schedule a call at calendly.com/adam-geuy.

Adam Geuy, Realtor, Blacktree Realty. Book a call.

Property tax figures in this post are computed from the Franklin County Auditor's tax year 2025 rate report using Ohio's 35% assessed-value method, before the owner-occupied credits in effect for that year unless a sentence says otherwise. Actual obligations vary by parcel, school district, county, special assessments, and the timing of the most recent appraisal cycle. Verify current tax records with the Franklin County Auditor or Delaware County Auditor before making purchase decisions. This post is for informational purposes only and does not constitute financial or tax advice.