Property Taxes

Property taxes help pay for services and amenities for all Boiseans. These functions include public safety such as police and fire services, open space management and libraries. The County Treasurer and Tax Collector collects all property taxes for cities, school districts and specialist districts within the county. 

For more information on property taxes, please review the frequently asked questions below. 

  1. Where do I pay my property tax?
    The County Treasurer and Tax Collector collects all property taxes for cities, school districts and specialist districts within the county. Their office is located in the Ada County Building at 200 West Front Street, Boise.

  2. Where do my property taxes go?
    Property taxes help pay for services and amenities for all Boiseans. These functions include public safety such as police and fire services, open space management and libraries.

  3. Why are there so many agencies listed on my property tax bill?
    Property tax is the primary source of funding for local government in Idaho. Taxpayers in Boise fund schools, the City, the County, Ada County Highway District, the Ada County Paramedics and a few small special districts.

  4. What is the 3% property tax cap?
    Under Idaho Law, local governments are limited to no more than a 3% increase in base property taxes each year, plus an increase for the amount of growth that has occurred through new construction or annexation.

    The 3% property tax cap is calculated based on the local government's total property tax received in the prior year. That means that local governments will receive no more than 3% more total property taxes than in the prior year, excluding new growth.

  5. Why does the City of Boise opt to take the 3% property tax increase each year?
    The cost of operating city government continues to rise at rate higher than the 3% annual rate allowed under state law. According to the Municipal Cost Index (MCI) developed by American City & County, the cost of municipal government rose 3.2% from Sept. 2017 to Sept. 2018. These increased costs are primarily due to increased costs for health care, fuel and the many other costs that cities incur.

  6. My home’s assessment went way up. Does that mean my property taxes are going way up also?
    Not necessarily. The amount you pay is based on the value of your house relative to the value of all other properties in the district. If your assessed home value rises by 10%, but every other property in the city rises by 20%, your property tax bill could decrease.

  7. What role do commercial properties play in property taxes?
    In recent years, assessed values for commercial property haven’t been rising as quickly as residential property values. This results in residential properties assuming a larger share of the total property tax value for the city – and therefore a larger portion of the total bill. The relationship between commercial and residential values plays a far greater role in affecting your property tax bill than does the annual 3% increase imposed by local governments.

  8. What is the levy rate?
    Each year, all local governments calculate the amount of revenue that they are legally able to collect (100% of the previous year’s property tax revenues, plus the optional 3%). The jurisdiction then divides that total by the total taxable property tax value set by the County Assessor. The result is the levy rate for that year. Each individual property is then taxed based on the value of their property multiplied by the levy rate.

  9. What is a Homeowner’s Exemption Cap?
    The Idaho State Legislature currently allows for the first $100,000 of the assessed market value, or 50% of the assessed market value, whichever is less, to be exempt from property tax for owner-occupied homes and manufactured homes that are primary dwellings. The exemption applies to a home and up to one acre of land.

  10. What is the City of Boise’s Position on the Homeowner’s Exemption Cap?
    The City of Boise would support an increase in the current property tax homeowner’s exemption.

    In recent years, as residential property values have increased steadily, many residential properties exceed $200,000 in assessed value and are now subject to property taxes on greater than 50% of the assessed value. The City of Boise believes capping the exemption at $100,000 shifts the tax burden from the commercial sector to residential properties. We encourage the Legislature to address Idaho’s growth and increase maximum homeowners exemption.

  11. Where can I get answers to questions about property taxes?
    If the question relates to the assessed market value of a property, the County Assessors Office can help. If the question relates to the tax rate levied against your house and how it relates to the assessed market valuation, the County Clerk-Auditors office can help. The County Treasurer will respond to questions about your tax bill. If you want to dispute the amount assessed against your property, the County Commissioners, sitting as the Board of Equalization, is the proper venue.

    Many questions relating to Idaho tax laws and their application can be answered by the State Tax Commission.

    If you want to know how the taxes received by the City of Boise are spent, the City Budget Office in the Department of Finance and Administration is the place to start. Its telephone number is 208-972-8147.