County property tax calculator
Property Tax Calculator for Williamson County
Williamson County is among the lowest property tax jurisdictions in the United States. At 0.429%, the effective rate runs roughly half the 1.07% national average — a rare position that gives homeowners a structurally lower carrying cost. The annual tax on a median home of $673,700 comes to just $2,890, or about $241 per month in escrow. Local revenue here is often supplemented through sales tax, tourism, or state programs rather than property tax. For buyers comparing jurisdictions, the difference compounds year after year: over a decade, a lower rate can save tens of thousands in total tax paid. The trade-off, if any, is worth checking against local services and school funding before making a purchase decision. Long-term owners here can often offset a modestly higher purchase price against a higher-tax market through accumulated savings alone. Williamson County's median home value of $673,700 sits far above the Tennessee state average — this is a premium market. Buyers here typically see larger down payments, higher loan amounts, and pricing that can push certain loans into jumbo territory. The valuation reflects a combination of demand, employment access, and local amenities that tend to hold long-term. For buyers entering this market, the math shifts: monthly payments scale with the loan amount, and lenders may apply stricter scrutiny at higher price points. Homeowners' insurance and property tax often run above state norms as a direct result. Anyone budgeting a purchase should plan for the full carrying cost, not just the loan payment. Buyers moving into this tier should expect lender scrutiny on jumbo financing thresholds and may benefit from a full pre-approval before touring properties, since the price point often attracts multiple offers and fast decisions.
Property Tax Details
National average is 1.07%
Used to project future tax burden
Annual Property Tax
$0
Insights
Property Tax Landscape in Williamson County
Williamson County taxes at 0.429%, below Tennessee's average of 0.7%. The difference saves roughly $1,826 per year on a median-valued home compared with the state figure. Buyers moving within Tennessee may notice the savings in escrow — the monthly payment is lower by a corresponding amount. Local jurisdictions here often operate on a leaner tax base or supplement revenue through other sources. The lower rate does not necessarily mean lower services; county budgets vary. Buyers comparing options should weigh the tax savings against other factors like commute, school district, and access to amenities. Within Tennessee, Williamson County ranks as the 21th lowest of 95 counties by effective property tax rate.
Williamson County's median home value of $673,700 sits far above the Tennessee state average — this is a premium market. Buyers here typically see larger down payments, higher loan amounts, and pricing that can push certain loans into jumbo territory. The valuation reflects a combination of demand, employment access, and local amenities that tend to hold long-term. For buyers entering this market, the math shifts: monthly payments scale with the loan amount, and lenders may apply stricter scrutiny at higher price points. Homeowners' insurance and property tax often run above state norms as a direct result. Anyone budgeting a purchase should plan for the full carrying cost, not just the loan payment. Households in Williamson County earn well above the Tennessee median — the median income here is $131,202, which gives buyers more flexibility in qualifying for conventional and jumbo financing at competitive rates. The price-to-income ratio of 5.1x is workable but requires planning. Households at the median can typically qualify for conventional or FHA financing at current rates. Median gross rent runs $1,895 per month, giving renters a baseline to compare against ownership costs in the same market.
Property Tax Scenarios — Williamson County
The scenarios below show how property tax scales across a range of home values typical for a premium market. Buyers comparing price points can see the direct effect on annual and monthly escrow: each step up in value moves the tax line proportionally at the county's effective rate. This is not the loan payment — it is the tax component that sits inside the monthly mortgage servicer collection.
| Home Value | Annual Tax | Monthly Escrow | 10-Year Total |
|---|---|---|---|
| $335,000 | $1,437 | $120 | $14,372 |
| $505,000 | $2,166 | $181 | $21,665 |
| $675,000 | $2,896 | $241 | $28,958 |
| $1,010,000 | $4,333 | $361 | $43,329 |
| $1,345,000 | $5,770 | $481 | $57,701 |
Frequently asked questions
In a county with one of the lowest tax rates in the country, questions tend to focus on how the lower rate affects long-term ownership cost and what to expect in escrow. Answers below use Williamson County-specific figures.
What is the property tax rate in Williamson County?
Williamson County has an effective property tax rate of 0.429%, among the lowest in the country (national average: 1.07%). On a median home of $673,700, that's about $2,890 per year, or $241 monthly through escrow.
How much are property taxes on a home in Williamson County?
At the county median of $673,700, annual property taxes run roughly $2,890, collected through mortgage escrow at about $241 per month.
How does Williamson County compare to Tennessee?
Williamson County's 0.429% rate is moderately below Tennessee's statewide average of 0.7%. The difference equals about $1,826 per year on a median home.
What is the median income in Williamson County?
Median household income in Williamson County is $131,202 (Census ACS 2023). Median gross rent runs $1,895 per month.
Are property taxes deductible in Williamson County?
Yes, property taxes are deductible on federal returns when you itemize, subject to the SALT cap ($10,000 for most filers). Williamson County homeowners paying $2,890 annually may benefit if their combined state and local tax burden exceeds the standard deduction.
How are property taxes calculated in Williamson County?
The county assessor multiplies your home's assessed value by the local tax rate. On a $673,700 home at the county's effective rate of 0.429%, the annual bill is approximately $2,890.
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Disclaimer: This calculator and the content on this page are for educational purposes only. They do not constitute financial, legal, or tax advice. Rates, loan limits, and eligibility criteria vary by lender, location, and borrower profile. Always consult a licensed financial professional before making borrowing decisions. CalcPier is independent and not affiliated with any lender listed on this page.
