How Much Will Property Taxes and Home Insurance Actually Cost in Middle Tennessee?

Of all the questions buyers in Franklin and Middle Tennessee ask me before they make an offer, the one that comes up most in the comments and forums right now is simple: how much will property taxes and homeowners insurance really cost me? It is a fair question, because the mortgage payment you see pre-approved is only the beginning. In Williamson County right now, the answer depends on exactly where you buy, what the 2025 countywide reappraisal did to assessments, and who insures your home. Here is the plain-English breakdown of what taxes and insurance add in this market, and how to budget for both without surprises.

Why everyone is asking this now

This question has been building for a while. It fills the replies on Middle Tennessee buyer groups and neighborhood boards, and it came up again and again in the moving and homeownership forums I follow. Two things made it loud in 2026. First, Williamson County went through a sweeping property reappraisal in 2025, the first in four years, and residential assessed values rose roughly 52 percent countywide. Second, homeowners insurance premiums across Tennessee jumped sharply in 2025 and have stayed at a level nobody was budgeting for. Both numbers landed in people's escrow statements at the same time, and suddenly the old rule of thumb, that taxes and insurance were a rounding error, stopped holding.

How Tennessee property taxes actually work

Before any numbers, the mechanism, because almost nobody explains it clearly. Tennessee does not tax the full market value of your home. Residential property is assessed at 25 percent of its appraised value, so a home appraised at $1 million shows up on the tax roll at $250,000. Your tax bill is that assessed value divided by 100, multiplied by the combined tax rate where the home sits. The county rate applies everywhere, and on top of it you pay your city rate, and in Franklin, sometimes a school district rate as well.

That last part trips up a lot of buyers. Franklin has two school zones for tax purposes. Homes inside the Franklin Special School District pay a higher combined rate than homes in the county school district, so two similar houses a few streets apart can have meaningfully different tax bills. The exact rate for your address is on the county's tax rate calculator, and it is worth checking before you fall in love with a price range.

What the 2025 reappraisal changed

Tennessee law requires reappraisals to be revenue-neutral for the county, which sounds like your taxes should stay flat. It does not work out that way in practice. When Williamson County's 2025 reappraisal lifted countywide residential assessed values by about 52 percent, the county cut its rate from $1.88 per $100 of assessed value to $1.30, roughly a 30 percent cut. The cut offset the value increase for the average home, but only for the average home. Homes that appreciated more than the county average saw their bills go up; homes that appreciated less saw their bills go down. That is why some Franklin homeowners felt a real hit on their 2026 statements and others barely noticed.

For buyers, the lesson is to look at the specific property, not the county story. Ask for the current assessed value and the exact combined rate for that address, including the school district. Then run your own number: assessed value divided by 100, times the combined rate. Your lender's escrow estimate should match your math within a few dollars, and if it does not, ask why before closing, not after.

The insurance side of the escrow

Homeowners insurance in Tennessee has become the second expensive surprise. Most 2026 sources put the statewide average somewhere between roughly $2,945 and $3,045 a year for a standard policy, and some measures have Tennessee among the costlier states, with premiums running well above the national average. In the Nashville area, a $300,000 dwelling commonly quotes around $2,000 a year, and a $450,000 home in a place like Spring Hill can run from about $2,100 to $2,800 depending on the insurer and the details.

What is driving it is not one thing. Severe convective storms, the tornadoes, hail, and straight-line wind that sweep Middle Tennessee, have grown more frequent and intense across the Southeast over the past two decades, and insurers price exactly for that. Rebuild costs are up. Population is growing fast. The climb slowed in 2026, roughly 4 percent after a harsh 2025, because reinsurance costs finally eased, but nobody expects premiums to go backward. A roof's age, the home's construction, your credit, and your deductible choice can swing the quote thousands of dollars a year, so this is the single most shop-around line item in your budget.

What this adds to your monthly payment

Put it together with a real example. Take a Franklin home at the county's median price range. Your lender will collect roughly one-twelfth of your annual property tax and insurance premium every month into escrow, so the true monthly cost is the mortgage payment plus those two slices. A $1 million home at a combined rate near 1.57 percent per $100 of assessed value carries roughly $3,925 a year in taxes, about $327 a month. Add a $3,000 annual insurance premium, another $250 a month, and you are looking at nearly $580 a month above principal and interest before a single repair. On the higher combined rate inside the Franklin Special School District, that same home's taxes jump by several hundred dollars a year, roughly $680 a month between the two line items.

The numbers change with every property and every policy, of course. The point of the exercise is that they should be in your budget from day one, not discovered in your first escrow statement.

The checks I run before we write an offer

When I work with buyers, taxes and insurance are part of the offer conversation, not an afterthought. We pull the current assessed value and the combined rate for the exact address, including the school district. We ask the seller's agent whether the owner claimed any exemptions that a new buyer will not qualify for, because the current bill sometimes reflects a discount you will not get. We call an insurer for a real quote on the actual home, not a state average, and we review the roof age and the claim history before we ever sit across a negotiation table.

If you qualify for an exemption, the county trustee's office is the place to ask, and it is worth asking. Otherwise, assume the full rate and build your budget from there. Buyer's agents in Tennessee are required to present an estimate of these costs in your closing paperwork, so nothing should be a surprise, but the numbers are far easier to stomach when you have already planned for them.

The honest takeaway

Tennessee is still a low-tax state compared with much of the country, no income tax and modest rates overall. But "low tax state" is a phrase that hides the reappraisal cycle. Williamson County reassesses on a four-year cycle, so values, and the bills that follow them, move in steps. Whatever you buy today will be revalued again, and the wise plan is to buy with room in the budget, not just enough room for today's escrow payment.

The good news is that none of this is unknowable. Every number I mentioned is public, quotable, and checkable before you commit. Run the taxes, quote the insurance, build both into your offer, and you will walk into closing knowing exactly what your home costs each month, no surprises on the first of the next year. If you want to run the math on a specific home, I love this conversation. Reach out with any questions...we're here for you!

Sources

1. Williamson County – 2026 property tax rates and calculator
2. Williamson County – 2025 property tax rate document
3. Tennessee Comptroller of the Treasury – How to figure your tax bill
4. Matt Bogosian – What are the property tax rates in Franklin, TN?
5. Williamson Herald – County property reappraisal impact on residents
6. MoneyGeek – Tennessee home insurance cost
7. Insure.com – Average homeowners insurance cost in Tennessee
8. ASIG TN – Tennessee home insurance costs 2026 rate filings
9. ASIG TN – Homeowners insurance rates in Nashville, Tennessee
10. Benton White Insurance – 2026 home insurance mid-year reality check for Tennessee homeowners