Tucson apartment property taxes are calculated in three steps: the Pima County Assessor sets a limited property value that can rise no more than 5% a year, Arizona’s 10% assessment ratio for residential rental property turns that into an assessed value, and a stack of county, city, school and special-district rates is applied to it. Because the limited value is capped, the tax bill on a stabilized apartment building tends to move more slowly than its market value, which makes Arizona’s system unusually predictable for owners who understand how it works.
This guide explains each of those steps for apartment owners in Tucson, using Arizona Department of Revenue guidance, the Pima County Assessor’s most recent annual report, and the fiscal year 2025/26 tax rates adopted for Pima County jurisdictions. Rates and values change every year, so each figure carries its year.
Tucson’s apartment stock in context
Tucson is Arizona’s second-largest city, with an estimated 548,371 residents on July 1, 2025, according to Census QuickFacts for Tucson. The 2020–2024 American Community Survey put the owner-occupancy rate at 51.8%, meaning nearly half of households rent, and median gross rent at $1,145 a month.
The county’s own numbers show how large the apartment base is. The Pima County Assessor’s 2025 annual report counted 94,273 apartment units for tax year 2025, up 2.78% from 91,725 the year before, and cited an apartment full cash value of about $13.8 billion. The same report noted that multifamily performance softened in 2024 and 2025, with rising vacancy and a slight rent decline of 0.76%, even as apartment values held steady. That gap between operating performance and assessed value is one reason Tucson owners pay close attention to how their buildings are valued.
How countywide values are trending
The direction of countywide values sets the backdrop for every individual notice. The assessor’s 2025 report put the full cash value of Pima County’s roughly 440,000 real property parcels at $158.4 billion, up 4.69% from $151.3 billion a year earlier. Taxable net assessed value, the figure that rates are actually applied to, rose 4.92% to $11.81 billion. New construction added 1.96% to the tax base, the highest growth rate in the report’s five-year comparison.
Those numbers matter to apartment owners in two ways. First, when the overall base grows, jurisdictions that hold their levies flat can lower their rates, while jurisdictions that raise levies can do so without raising rates. Owners should therefore watch levies as well as rates when budgets are adopted each summer. Second, new construction adds to the base outside the 5% cap, because a newly built property enters the roll at its own value rather than stepping up from a prior one. In a county still absorbing new apartment deliveries, that growth spreads the levy across more value.
The report also illustrates how use and history can affect taxes. It described a historic office building converted into about 30 rental units that received reduced property taxes because of its historic status, an example of how the property’s designation, not just its income, can shape the bill.
Full cash value and limited property value
Every parcel in Arizona carries two values. The first, full cash value, is the assessor’s estimate of market value and can rise or fall freely from year to year. The second, limited property value, is the one that actually drives the tax bill.
Arizona voters created today’s version of that system with Proposition 117 in 2012. According to the Secretary of State’s publicity pamphlet for Proposition 117, the measure amended the state constitution to cap annual growth in the value used for real property taxes at 5% over the prior year, and to make that single limited value the basis for all property taxes on real property, starting with taxes levied in tax year 2015.
The Arizona Department of Revenue’s guide to Arizona property taxation adds two refinements:
- Limited value can never exceed full cash value. If market value falls below the limited value, the limited value comes down with it.
- The 5% cap has exceptions. Physical changes to a property, a change in use, or a corrected erroneous assessment can move limited value by more than 5% in a single year.
For a Tucson apartment owner, the practical effect is that a building whose market value jumped during a strong year does not see its taxable value jump by the same amount. Instead, limited value climbs toward full cash value in steps of up to 5% a year. A major renovation, an addition of units or a conversion of use, by contrast, can reset the limited value much faster.
The 10% assessment ratio for rental property
Arizona classifies property by use, and each class has an assessment ratio. The Department of Revenue lists residential rental property as Class 4.2, with an assessment ratio of 10%, the same ratio used for primary residences in Class 3 and other non-primary residential property in Class 4.1.
Although the ratio is the same, the classes are not interchangeable. The Pima County Assessor’s 2025 report notes that only Class 3 owner-occupied homes qualify for the state’s Primary Tax Reduction, and the Department of Revenue explains that the constitutional 1% limit on primary property taxes applies to owner-occupied residences. Apartment buildings, as Class 4 property, receive neither benefit, so their effective rates run higher than those on comparable owner-occupied homes.
Classification also gets checked. According to the assessor’s report, a February 2024 mailing aimed at Class 4 owners led to more than 4,600 tax roll corrections affecting roughly 2,000 properties, and owners may ask for reclassification for the current year and the previous three tax years. For owners of small buildings, including duplexes and fourplexes where an owner may live in one unit, making sure the classification matches actual use is worth a periodic look.
Pima County and Tucson tax rates for 2025/26
Once assessed value is set, every taxing jurisdiction that covers a parcel applies its rate per $100 of assessed value. An August 18, 2025 memo to the Pima County Board of Supervisors laid out the fiscal year 2025/26 rates for all jurisdictions in the county. For a Tucson parcel in the Tucson Unified School District, the main components were:
- Pima County primary: 4.1943
- City of Tucson primary: 0.4453
- City of Tucson secondary: 0.5510
- Tucson Unified School District primary: 3.3701
- Tucson Unified School District secondary: 2.2225
- Pima Community College primary: 1.2176
- County Free Library District: 0.5579
- Flood Control District: 0.3289
- Fire District Assistance Tax: 0.0350
The memo also confirmed that the State of Arizona property tax and the state equalization assistance tax were both set at zero. Those listed components add up to about 12.92 per $100 of assessed value, before any smaller district levies that appear on an individual bill. Parcels in other school districts, such as Amphitheater or Sunnyside, carry different school rates, so the exact total depends on the address.
Why the city’s share is small
The city’s portion is a minor slice of the bill. The City of Tucson’s own May 2025 Mayor and Council communication described the fiscal 2026 primary rate as the maximum allowable, reflecting the statutory 2% increase in revenue plus new construction and tort costs, and reported that the secondary levy would fall 5.32% because of debt service changes. Combined, the city’s primary and secondary rates were about 0.9963 per $100, down from 1.0345 a year earlier. Measured against the roughly 12.92 total listed above, the city’s combined rate of 0.9963 is less than 8% of the bill. The county, school districts and community college account for most of what a Tucson apartment owner pays. That is why school district boundaries, rather than city limits, often explain the biggest differences in tax rates between two Tucson buildings.
Estimating Tucson apartment property taxes: a worked example
Putting the pieces together shows how a bill is built. Consider a hypothetical apartment building in the Tucson Unified School District with a full cash value of $5,000,000 and a limited property value of $4,200,000:
- Assessed value: $4,200,000 × 10% = $420,000.
- Rate: about 12.92 per $100 of assessed value, using the listed 2025/26 components.
- Estimated tax: $420,000 ÷ 100 × 12.92 ≈ $54,300 a year, before smaller district levies.
Two points stand out. First, the gap between full cash value and limited value is worth real money: taxing the full $5,000,000 at the same ratio and rates would produce roughly $64,600. Second, that gap narrows over time as limited value rises by up to 5% a year, so an owner who has held a building through a period of strong appreciation should expect tax increases to continue for several years even if market values flatten. Buyers modeling a purchase should look at both values on the assessor’s record rather than relying on the seller’s current bill.
To see the step-up at work, carry the same building forward one year. If limited value rises the full 5%, to $4,410,000, assessed value becomes $441,000, and at unchanged rates the bill rises to roughly $57,000, an increase of about $2,700, even if rents and market value have not moved at all. Rate changes adopted by the county, city and school district each summer then push that figure up or down from there.
The valuation calendar and appeal deadlines
Arizona taxes property one year after it is valued. According to the Department of Revenue, the valuation year is the year before the tax year, and the assessor mails the Notice of Value for real property between January 1 and the last day of February of the valuation year. The Pima County Assessor’s report notes, for example, that tax year 2025 notices went out in February 2024.
That timing creates a long lead between the notice and the bill, and the appeal deadlines run from the notice:
- Administrative appeal: within 60 days of the Notice of Value’s mailing date, filed with the assessor.
- State Board of Equalization: a further appeal within 25 days after the assessor’s decision for real property.
- Judicial appeal: may be filed in tax court on or before December 15 instead of an administrative appeal, or within 60 days after the final administrative decision.
Appeals are common enough to be routine. The assessor’s 2025 report counted 1,391 appeals processed. Outcomes vary: the report counted 841 appeals resolved at the assessor level, 402 valuation changes approved at the State Board of Equalization, and 21 judicial appeals filed. For an apartment building, the strongest appeal evidence is usually the property’s actual operating history, including rent rolls, vacancy and expenses, compared with the income assumptions implied by the assessor’s value.
When Tucson apartment owners pay
Arizona property taxes are paid in two installments. The Department of Revenue lists the first half as due October 1 and delinquent after November 1, and the second half as due March 1 and delinquent after May 1. Owners may pay the full year’s tax by December 31. Lenders that escrow taxes typically pay on that schedule, but owners of free-and-clear buildings need to calendar both dates themselves.
Business personal property
Real property is not the only item an assessor values. The Department of Revenue explains that business personal property is taxed on full cash value rather than limited value, that personal property notices are sent on or before August 30, and that administrative appeals of personal property values must be filed within 30 days rather than 60. Owners who report business personal property for an apartment operation should keep those separate deadlines in mind.
Rental registration and the end of the city rental tax
Registering with the assessor
Arizona requires owners of residential rental property to register with the county assessor. Under A.R.S. 33-1902, the owner must provide a name, address and phone number, a responsible person for any business entity or trust, the property’s street address and parcel number, and the year it was built, and must update the information within 10 days of a change. Out-of-state owners must also designate an in-state statutory agent. The penalties are steep: a city or town can impose $1,000 plus $100 a month for a newly acquired property that is not registered, or $150 a day after notice, though compliance within 10 days after a complaint or notice requires dismissal. The assessor may charge up to $10 per registration or change.
No more city rental sales tax
For years, Arizona cities could levy a transaction privilege tax on residential rent. That ended at the close of 2024. According to the Arizona Department of Revenue, Laws 2023, Chapter 204 amended A.R.S. 42-6004 so that cities may not tax residential rentals after December 31, 2024, and owners stopped collecting and remitting city rental tax on long-term residential leases as of January 1, 2025. For Tucson apartment owners, that removed a tax that had been charged on rent and simplified monthly reporting.
What Tucson owners can do with this
Arizona’s system rewards owners who check their numbers. A short list covers most of it:
- Read both values on every notice. Compare full cash value with limited value and estimate how many years of 5% steps remain before they meet.
- Confirm the classification. Make sure each parcel is coded as Class 4 rental or Class 3 owner-occupied according to actual use.
- Appeal with operating data. Use trailing rent rolls and expenses within the 60-day window when a value looks out of line with income.
- Keep the registration current. Update assessor records within 10 days of a change in ownership contact information.
- Budget for the second half. Plan for the March installment, which is delinquent after May 1.
Property tax is only one of the state-level rules that affect an apartment’s economics. Our guide to rent control and property tax by state compares Arizona with other states, and our Arizona multifamily market overview covers the wider state picture. Owners weighing a sale can find local context on our Tucson market page.
