Wyoming Property Tax Calculator - Estimate Annual Tax by Assessed Value

The Wyoming Property Tax Calculator estimates the annual ad valorem tax on a Wyoming home or other real property by starting from its market value and applying the steps Wyoming counties actually use: a statutory assessment ratio, then a locally set mill levy. Wyoming has no state property tax, so the bill is built entirely from the assessed value and the mill levy your county, city, school district, and special districts approve. The tool turns those inputs into a dollar figure instead of a guess.

It is useful when you are buying a home and want the true carrying cost, comparing mill levies across counties, checking the math on a tax notice, or estimating the impact of Wyoming's refund program for senior and disabled low-income owners. Because the county share is capped by the state constitution at 12 mills, the calculator keeps the home price fixed while you move the mill levy, which isolates how much of the bill comes from where you live rather than what you own.

Wyoming assesses residential property at a low 9.5% of market value, which keeps the assessed base small compared with states that assess closer to full value. The same market price therefore produces a much smaller assessed value here, and the mill levy does the rest of the work in setting the final bill.

The estimate is informational and should not replace the official figure on a county tax statement. County assessors publish the exact levies and any local exemptions, and those numbers are the ones that appear on the actual bill.

Property tax is a separate levy from the income side of owning a home, so the Wyoming Paycheck Calculator shows the state income withholding that funds some of the same local services.

The calculator works through Wyoming's assessment and levy steps in a fixed order so the result matches a county tax statement. First it finds the assessed value as market value times the assessment ratio; residential property uses 9.5% under W.S. 39-13-103. It then subtracts any senior/disabled refund to get the taxable assessed value, and multiplies that by the combined mill levy expressed in mills, where one mill equals $1 per $1,000 of assessed value.

The county cap portion is worked out the same way at 12 mills, so you can see how much of the bill is the constitutional county ceiling and how much comes from city, school, and special-district levies. The monthly figure divides the annual tax by twelve, which is the number that matters when the bill is paid through an escrow account.

Worked example: a $300,000 home assessed at 9.5% yields $28,500 of assessed value; at a 60-mill combined levy the annual tax is $1,710, or about $142.50 a month. The effective rate divides the annual tax by the market value, which for this example is 0.57% and is the figure that matters when comparing Wyoming with other states.

According to the Wyoming Department of Revenue, Wyoming property is assessed at a percentage of fair market value and taxed by locally set mill levies, with no state property tax in the mix.

Because the same levy is a deductible rental expense, the Rental Property Tax Calculator shows how the levy flows through a return for an investment property.

A few terms drive most of the gap between a home's price and its tax bill, and Wyoming applies each one in a particular way. Once you know what each term means, the bill stops looking like a single mystery number and starts looking like a short chain of arithmetic.

The order matters: the assessment ratio sets the base, any refund shrinks it, and only then does the mill levy convert that base into dollars. Changing the ratio or the refund moves the base, while changing the mill levy scales every dollar of that base.

Sales tax and property tax are different Wyoming levies, but the State Sales Tax Calculator shows how the sales-tax side of owning a home compares with the property levy.

1. 1 Enter market value: Use the fair market value from a recent sale, appraisal, or your county assessment record.
2. 2 Set the assessment ratio: Keep 9.5% for a home, or raise it to 11.5% for commercial or industrial property.
3. 3 Add your mill levy: Find the combined mills on your county tax statement; 60 mills is a typical starting point for planning.
4. 4 Enter a senior/disabled refund: If you qualify, add the estimated refund; otherwise leave it at 0 to see the unrefunded bill.
5. 5 Read the results: Review assessed value, taxable assessed value, annual and monthly tax, and the effective rate.
6. 6 Compare scenarios: Change the mill levy or refund to see how the bill shifts before you buy, appeal, or move.

Property tax is a fixed cost rather than a payroll deduction, but the Gross to Net Calculator shows how a steady monthly levy compares with the take-home pay that covers it.

The calculator shows the parts of the bill separately, so you can see what drives the total instead of reading one final number. A single dollar amount hides whether your bill is high because of the home's value or because of the mill levy where it sits; splitting the inputs apart answers that question.

It also turns a buy-or-move decision into a concrete trade. Dropping the assessed value by a few thousand dollars, or choosing a lower-millage area, shows up immediately in the annual and monthly lines, which is the kind of comparison that is hard to do by hand across several scenarios.

It shows the constitutional 12-mill county cap in context, making clear how much of the bill is fixed by the state and how much is set locally by vote.

It models the senior/disabled refund so qualifying owners can see the real out-of-pocket tax rather than the gross levy.

It reports the effective rate, which is the number to use when comparing Wyoming's property tax burden with that of neighboring states.

Once you know the annual property tax, the Mortgage Calculator folds it into the monthly housing payment so the full carrying cost is visible.

• • The calculator uses one combined mill levy and does not separate the county, city, school, and special-district levies shown on a real tax statement.
• • It assumes the 9.5% residential or 11.5% commercial ratio and does not model agricultural use-value assessment or mineral property rates.
• • The estimate excludes voter-approved bonds, special assessments, and any penalty interest that may appear on the actual bill.

Several inputs move the bill more than others, and Wyoming's rules place a constitutional ceiling on the county share while letting local millage vary widely. The practical takeaway is that you have little control over the 9.5% assessment ratio or the 12-mill county cap, but real leverage over the mill levy when you choose where to live and over the refund when you claim it.

According to the Wyoming Constitution, the county property tax levy is capped at 12 mills per dollar of assessed value while other local bodies add mills on top.

If you are weighing whether owning beats renting once the tax is included, the Rent vs Buy Calculator folds the annual levy into the own-versus-rent math.