What Is Government Exemption
A government exemption removes a property from the tax roll when it's owned and operated by a federal, state, or local government entity for a public purpose. This means the property generates no property tax revenue for the municipality, county, or school district.
In most states, government-owned properties qualify automatically once ownership transfers to a public agency. However, the exemption only applies to land and buildings used directly for government functions. A city-owned parking garage, county courthouse, state highway maintenance facility, or federal building would all be exempt. A government entity renting out commercial space for profit, by contrast, may lose the exemption on that portion of the property.
Scope and Boundaries
The exemption covers federal properties (post offices, military installations, VA facilities), state properties (DMV offices, university buildings, correctional facilities), and local government properties (city halls, fire stations, libraries, public schools). The key test is whether the property is used for a public governmental purpose, not whether it's simply owned by a government entity.
Properties that appear government-owned but are actually used for private profit don't qualify. A city that leases parking spaces to private operators, or a county that rents office space to a private business, may owe property tax on those revenue-generating portions. Some states apply a percentage-based allocation if a building is mixed-use.
How This Affects Your Appeal
If you own property adjacent to or nearby a government-exempt property, you need to understand how assessors treat comparable sales data. Exempt properties don't sell on the open market, so they can't be used as comparable sales in the appraisal method. An assessor cannot justify your assessment by pointing to a city-owned building next door that was never appraised or sold.
When you challenge an assessment at a board of review hearing, you can argue that the assessor improperly used government property as a comparable. This is especially important in commercial appeals. If the assessor's appraisal relied on comps that included tax-exempt government buildings, that appraisal method is flawed. Demand that the assessor use only market sales from taxable properties.
You may also use this principle in reverse: if a government agency owns a similar building and it was assessed before exemption was granted (or the exemption was recently lost), historical assessment data can sometimes inform market value estimates, though with caution.
Common Questions
- Can I challenge an assessment by arguing a nearby government property should lower my value? No. Exempt properties are removed from the tax roll specifically because they don't participate in the market. An exemption doesn't reduce your property's market value; it only relieves the government entity from paying taxes. Your assessment should reflect what a willing buyer would pay for your property, not what a nearby tax-exempt building might suggest.
- What if a government agency is considering buying the property next to mine? Once purchased and converted to government use, that property will be exempt, which removes it from comparable sales data. This can actually help you in future appeals, since fewer taxable comps may reduce the assessor's ability to justify high valuations in your area. However, a large institutional use may affect your property's desirability or character, which could legitimately affect market value independent of the exemption.
- Does a government exemption mean my school taxes will increase? Potentially. When government property is removed from the tax roll, the same tax revenue must come from the remaining taxable properties. If your school district's budget is fixed and exempt properties increase, your tax rate may rise. However, this is a revenue issue, not an assessment issue. You address it through budget challenges or voter advocacy, not through assessment appeals.