Clear Property Tax Calculator
Property tax is the housing cost nobody quotes you. Pick your state and this uses its real average effective rate — from a full 50-state dataset, not a guessed national number — then shows the annual bill, the monthly escrow, and how an exemption moves it.
State averages are effective rates — tax actually paid as a share of home value — from the Tax Foundation's Facts & Figures 2026 analysis of 2024 Census data; median bills are from the Census Bureau's 2024 American Community Survey. An effective rate already folds in assessment ratios and typical exemptions, which is why it is the honest way to compare states. Your county's actual rate can sit well above or below the state average — replace the rate with the one on your tax bill or county assessor site for a precise figure.
How it works
Annual tax = (home value − exemption) × effective rate. The effective rate is what makes state comparisons meaningful: states assess at different fractions of market value and levy in mills, but the effective rate — total tax paid ÷ total value — cuts through all of it. The escrow line adds the standard two-month cushion lenders are allowed to hold, spread across the year. The state rank and median bill shown in the results come from the same dataset, so you can see whether your estimate is typical for your state or an outlier worth appealing.
Formula & worked example
Formula: Annual property tax = (home value − exemptions) × effective rate. The effective rate is total tax paid ÷ total home value for the state, from Tax Foundation Facts & Figures 2026 (2024 Census data) — it already reflects assessment ratios and typical exemptions. Monthly escrow with the standard cushion = annual ÷ 12 × 14 ÷ 12.
Worked example: $400,000 at Texas's 1.40% average effective rate = $5,600 a year, $466.67 a month. A $50,000 exemption would cut the Texas bill by $700.
When to use this
- You are house-hunting across state lines and want the tax difference in dollars
- Your escrow payment jumped and you want to see whether the new number is sane
- You just moved and are checking whether you are owed a homestead exemption
- You are comparing the true monthly cost of two homes in different counties
How to use it, step by step
- Pick your state — the average effective rate and dataset facts load automatically.
- Enter your home's current market value.
- Leave the rate, or replace it with the exact rate from your county or last tax bill.
- Enter any homestead or other exemption you claim, in dollars of taxable value.
- Read the annual bill, the monthly figure and the escrow-with-cushion figure.
- Sanity-check against the state median bill shown in the results — far off usually means your county rate differs from the average.
What the inputs mean
| Input | What it is | Typical values |
|---|---|---|
| State | Loads the state's average effective rate and its dataset facts (rank, median bill). | Tax Foundation Facts & Figures 2026; Census ACS 2024 |
| Home value | Market value of the home — the base the effective rate applies to. | Use a realistic sale value, not the purchase price from years ago |
| Effective rate % | Set by the state preset; replace it with your county's rate for a precise bill. | State averages run 0.29% (Hawaii) to 1.88% (New Jersey, Illinois) |
| Homestead exemption $ | Taxable value removed for a primary residence, where your state offers one. | Texas school exemption $140,000; Florida up to $50,000 |
Another worked example
A $350,000 Florida home at the state's 0.78% average rate: $2,730 a year with no exemption. Claim a $50,000 homestead exemption and the taxable value drops to $300,000 — the bill becomes $2,340, saving $390 a year, every year, for a one-time application. Florida's median bill in the dataset is $2,993, so this home sits a little below the state middle even before the exemption.
Frequently asked questions
How much is property tax on a $400,000 home?
It depends entirely on the state: about $5,600 a year at Texas's 1.40% average effective rate, $7,520 at New Jersey's 1.88%, and $1,160 at Hawaii's 0.29%. The identical house carries a 6-to-1 tax difference across state lines — which is why this calculator refuses to use a single national rate.
What is an effective property tax rate?
The tax actually paid divided by the home's market value. Nominal rates mislead because assessment ratios differ — a 2% rate on a home assessed at 50% of value is an effective 1%. Effective rates, from the Tax Foundation's analysis of Census data, are the only apples-to-apples comparison across states.
Which states have the highest and lowest property taxes?
By effective rate, New Jersey and Illinois tie at the top (1.88%) and Hawaii is lowest (0.29%), per Tax Foundation Facts & Figures 2026. By actual median bill, New Jersey homeowners pay the most ($9,358) and West Virginia the least ($881) — high home values can make a low-rate state's bills mid-pack, as in Hawaii ($2,385).
How does a homestead exemption change the bill?
It subtracts from taxable value before the rate applies. A $50,000 exemption at Texas's 1.40% saves $700 a year. Amounts and rules are state and local — Texas mandates a $140,000 school-district exemption for a primary home, Florida up to $50,000 — and you usually must apply; exemptions rarely apply themselves.
Why is my lender's escrow higher than the tax divided by 12?
Lenders may hold up to a two-month cushion against escrow shortages, and they re-analyze the account yearly. If your tax bill rose, the escrow rises by the increase plus a catch-up for last year's shortage — the calculator shows the cushion so the number on your statement is not a surprise.
Can I appeal my property tax?
You appeal the assessed value, not the rate. If your home is assessed above what it would sell for, comparable sales are the standard evidence, and deadlines are short — often 30 to 60 days after the assessment notice. A successful appeal repeats every year the lower value holds.
🧾 Buying? The tax hides in the closing costs too
Lenders escrow months of property tax up front at closing. The Closing Cost Estimator itemizes that — plus every lender, title and government fee — for your state.
Why does my neighbor pay less tax on the same house?
Assessment caps and exemptions. In states like California (Proposition 13) and Florida (Save Our Homes), assessed values rise slowly for long-time owners while new buyers start at full market value — identical houses, very different bills. Your purchase resets the clock; budget for the buyer's bill, not the seller's.
When is property tax due, and what if I pay through escrow?
Due dates are local — commonly once or twice a year. If your mortgage escrows taxes, the lender pays from your escrow account; the monthly escrow line here (with the permitted two-month cushion) is what to expect inside your mortgage payment.