Boise, Ada County, Idaho Property Taxes
Property Taxes in Boise, Idaho
Median Boise, Idaho effective property tax rate: 0.59%, significantly higher than the national median of 1.02%, and higher than the Idaho state median of 0.42%.
Median Boise, Idaho home value: $436,200
Median annual Boise, Idaho tax bill: $2,553, higher than the national median property tax bill of $2,400.
How are property taxes in Ada calculated?
Property taxes in Boise, Idaho are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Boise's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Boise, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Boise, Ada County, Idaho Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.59%
Estimate Property Tax Bill
$2,574
$2,388
How Does the Boise Property Tax Calculator Work?
Use this Boise property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Boise's median effective tax rate of 0.59% — based on actual property records in Ada County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Boise's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Your bill may vary by ZIP code within Boise: rates range from $1,813 in 83709 to $5,199 in 83712, primarily due to differences in school district levies and local assessment districts.
Boise's median effective tax rate is lower than Idaho's 0.42% state median tax rate and lower than Ada County's rate. The median tax bill in Boise is $2,553, which is $153 higher than the state tax bill and above the $2,400 national median property tax bill.
About Boise Property Taxes
About Property Taxes in Boise, Ada, Idaho
Boise’s median effective property tax rate of 0.59% is higher than the Idaho state median of 0.42% and lower than the national median of 1.02%. This rate reflects the Ada County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the city.
Property tax rates are not uniform across Boise. Homeowners in the 83702 ZIP code carry a median effective rate of 0.77%, while those in 83709 pay 0.43%. This spread — 0.34 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Ada County. Understanding which part of Boise you live in can make a meaningful difference to your annual tax bill.
Boise homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the June 22, 2026 deadline each year.
If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.
Property Tax Rates Across Boise, Ada County, Idaho
As noted earlier, local government entities set tax rates, which can vary widely within a state.
Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.
While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Boise's effective property tax rate to other cities in Idaho and the median property tax rates in Idaho and the U.S.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Boise Tax Rate
0.59%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Ada County Tax Rate
0.46%
Median Effective Idaho Tax Rate
0.42%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Boise, Ada County, Idaho
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 83702 | 0.64% | 0.70% | 0.77% | 0.88% | 0.97% |
| 83703 | 0.47% | 0.53% | 0.61% | 0.78% | 0.93% |
| 83704 | 0.43% | 0.49% | 0.58% | 0.69% | 0.93% |
| 83705 | 0.45% | 0.50% | 0.61% | 0.86% | 0.95% |
| 83706 | 0.48% | 0.53% | 0.63% | 0.88% | 0.97% |
| 83709 | 0.27% | 0.30% | 0.43% | 0.59% | 0.69% |
| 83712 | 0.66% | 0.70% | 0.75% | 0.83% | 0.94% |
| 83713 | 0.40% | 0.43% | 0.47% | 0.53% | 0.66% |
| 83714 | 0.35% | 0.47% | 0.54% | 0.62% | 0.89% |
| 83716 | 0.58% | 0.64% | 0.73% | 0.89% | 0.95% |
Source: Ownwell
Property Tax Assessment Values Across Boise, Ada County, Idaho
When examining property taxes in Boise, understanding the distinction between "market value" and "assessed value" is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Ada County assessment office estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In Ada County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of June.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Boise.
For example, the median home price in Boise is $436,200, with tax bills ranging significantly across the county. 83712 has the highest median home price at $686,650.
Property Tax Assessment Values Across Boise, Ada County, Idaho
Source: Ownwell
$363,150
$551,375
$739,600
Median Boise Market Value
$436,200
Median Ada County Market Value
$454,500
Median Idaho Market Value
$389,309
Median United States Market Value
$235,294
Property Tax Assessment Values Across Boise, Ada County, Idaho
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 83702 | $374,410 | $503,600 | $649,700 | $865,875 | $1,206,690 |
| 83703 | $312,700 | $371,600 | $445,200 | $583,550 | $792,580 |
| 83704 | $290,500 | $329,700 | $371,400 | $436,200 | $536,900 |
| 83705 | $285,500 | $323,000 | $377,700 | $453,925 | $551,360 |
| 83706 | $300,100 | $367,900 | $448,000 | $568,600 | $745,320 |
| 83709 | $328,500 | $364,800 | $422,400 | $496,400 | $590,600 |
| 83712 | $448,010 | $552,500 | $686,650 | $912,950 | $1,341,900 |
| 83713 | $328,000 | $358,400 | $416,200 | $513,200 | $615,700 |
| 83714 | $319,060 | $382,375 | $487,550 | $696,725 | $865,700 |
| 83716 | $362,400 | $419,500 | $554,050 | $704,200 | $882,950 |
Source: Ownwell
Property Tax Bills Across Boise, Ada County, Idaho
Property tax bills in Boise are based on the assessed value of a home, which is then multiplied by the local tax rate. For a home with a median value of $436,200, the bill can vary widely depending on location and assessment details. In Ada County, the 25th percentile tax bill is $1,786, while the 75th percentile is $3,825 and the 90th percentile reaches $5,761.
Several factors affect the final amount, including the home’s market value, the assessed value used by the county, and the tax rates set by local governments. Even within the same city, bills can differ by neighborhood; the highest median tax bill is $5,199 in ZIP code 83712, compared with $1,813 in ZIP code 83709.
For homeowners, this means property taxes can be a major ongoing housing cost, and higher assessments can lead to larger annual bills.
Median Boise Tax Bill
$2,553
Median Ada County Tax Bill
$2,170
Median Idaho Tax Bill
$1,726
Median United States Tax Bill
$2,400
Property Tax Bills Across Boise, Ada County, Idaho
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 83702 | $2,749 | $3,767 | $5,052 | $6,897 | $9,492 |
| 83703 | $1,618 | $2,108 | $2,901 | $4,087 | $6,051 |
| 83704 | $1,421 | $1,763 | $2,166 | $2,869 | $3,781 |
| 83705 | $1,376 | $1,770 | $2,410 | $3,272 | $4,522 |
| 83706 | $1,699 | $2,163 | $3,009 | $4,068 | $5,502 |
| 83709 | $974 | $1,300 | $1,813 | $2,644 | $3,480 |
| 83712 | $3,187 | $4,065 | $5,199 | $7,019 | $10,316 |
| 83713 | $1,382 | $1,621 | $2,145 | $2,655 | $3,267 |
| 83714 | $1,381 | $1,930 | $2,825 | $3,820 | $5,015 |
| 83716 | $2,188 | $2,894 | $4,093 | $5,748 | $7,234 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | June 22 |
Links | |
|---|---|
| Ada Tax Assessor | |
| Website | apps.adacounty.id.gov |