Yuma apartment operating costs are shaped by three local forces: one of the hottest climates in the country, which drives electricity use and wear on roofs and cooling equipment; a City of Yuma utility rate schedule that is rising on a set multi-year path; and Arizona tax rules that changed in owners’ favor on January 1, 2025, when cities lost the power to tax residential rent. Insurance, management and payroll matter too, but those three local factors are where Yuma differs most from other markets.
This guide walks through each line of the expense budget an owner of a 5-plus unit building in Yuma should understand, using current figures from the city, the county, the state and the utility regulators. Where a number is still being decided, such as Arizona Public Service’s pending rate request, it says so.
The market behind the expense budget
Yuma is the county seat of Yuma County, a role it has held since 1864. The Census Bureau QuickFacts profile for Yuma puts the city’s July 1, 2025 population at 105,227, up from 95,548 at the 2020 Census, a gain of roughly 10% in five years. The 2020–2024 American Community Survey reports a median gross rent of $1,114 and an owner-occupancy rate of 66.8%, which means about a third of the city’s households rent.
A steady share of that rental demand comes from the military. Marine Corps Air Station Yuma is home to roughly 4,000 active-duty Marines and Sailors, and on average about 600 aircraft and 14,000 personnel rotate through the base for training, according to the installation. Growth and military demand support occupancy, but they do not change the cost side, which is where Yuma’s climate and utility structure take over.
Electricity: the largest climate-driven cost
Arizona Public Service (APS) is the electric utility serving Yuma. For apartment owners, electricity shows up in two places: common areas such as hallways, exterior lighting, pools and leasing offices, and any units where the owner pays the power bill. In Yuma’s climate, cooling load is the biggest driver of both.
A rate case still being decided
APS filed a rate case with the Arizona Corporation Commission (ACC) on June 13, 2025, under Docket E-01345A-25-0105, asking for an increase of about 14%. The utility estimated the typical residential customer using 1,000 kWh a month would pay about $20 more per month. The request proposed increases of more than 45% for extra-large users and between 6.5% and 30% for general-service business classes. It follows an 8% increase the ACC approved in 2024. Details of the request are on APS’s rate case page.
The case is not final. According to the Arizona Corporation Commission’s rate case timeline, hearings ran from May 18 to July 7, 2026; an administrative law judge’s recommended order was expected by late November 2026; the commission must vote by December 31, 2026; and new rates are expected to take effect in early 2027. Owners preparing 2027 budgets should carry an allowance for an increase and update it once the commission votes.
Time-of-use pricing and common-area loads
APS’s time-of-use plans set the weekday on-peak window at 4 p.m. to 7 p.m., and one version adds a demand charge based on the customer’s highest on-peak hour. A fixed-rate plan is also available. For owner-paid meters, the plan choice matters. A pool pump, laundry room or leasing office that runs heavily during late afternoon will cost more on a time-of-use plan unless the load can be shifted; a demand-charge plan can penalize a single hour of high use, such as several large air handlers starting together.
A one-time credit this fall
On October 8, 2026, the ACC unanimously approved a one-time bill credit for APS customers on November 2026 bills, worth about $14.70 for an average residential customer. That figure includes skipping the roughly $2.49 Environmental Benefits Surcharge for one month; the surcharge resumes December 1, 2026. It is a small, non-recurring offset and should not be built into ongoing budgets.
Water, sewer and trash from the City of Yuma
The City of Yuma provides water, wastewater and solid waste service, and its rate structure treats apartments differently from single-family homes in ways owners should understand.
Water rates and the five-year schedule
The city adopted water and sewer rates that rise 3.5% a year for five years, beginning August 1, 2024. A $1 monthly fee for advanced metering infrastructure also took effect on August 1, 2024. The City of Yuma utility rate changes page describes the schedule. Yuma’s drinking water comes from the Colorado River and groundwater and is treated at the Main Street and Agua Viva water treatment plants.
On the August 2026 water schedule for customers inside city limits, the monthly base charge depends on meter size:
- 5/8-inch to 3/4-inch meter: $19.47
- 1-inch meter: $23.56
- 2-inch meter: $37.44
Volume charges are billed per hundred cubic feet (hcf). Multifamily accounts pay the same per-unit prices as single-family accounts but move into the higher tiers sooner:
- 0 to 5 hcf: $1.70 per hcf
- 6 to 13 hcf: $2.00 per hcf
- 14 hcf and above: $2.29 per hcf
Residential tiers, by comparison, break at 10 and 30 hcf. The published schedule does not say whether the multifamily breakpoints are applied per account or per dwelling unit, and that detail matters. If they apply per account, a master-metered building with dozens of units will bill most of its consumption at the top $2.29 rate, and every leak, running toilet or overwatered lawn is priced at that margin. Owners should ask the city’s utility billing office how their account is calculated and compare it against a year of bills before underwriting water costs. Either way, leak detection, low-flow fixtures and irrigation controls are the main levers. The full table is in the City of Yuma water rate schedule.
Sewer charges
The city’s residential sewer base charge inside city limits rose from $38.39 in August 2024 to $39.92 in August 2025 and $41.52 in August 2026. The sewer schedule does not list a separate multifamily category, so owners should confirm with the city how their specific account is billed, particularly for buildings with a single water meter serving many units.
Water Resource Trust Fund surcharge
The city has also used a Water Resource Trust Fund surcharge. For multifamily accounts, it was set at $2.00 a month plus $0.50 per dwelling unit, capped at $12.00 per account. The city’s notice listed it as effective through November 30, 2025, with the possibility of reinstatement. Owners reviewing older bills or trailing financials should note whether the surcharge appears, since it may not recur.
Solid waste
For fiscal year 2026, the city’s solid waste collection fee is $8.12 a month and the environmental fee is $8.40 a month, reflecting a 3% increase. Increases are capped at 3% a year under Resolution 2018-002. The city provides weekly pickup with 90-gallon trash and recycling carts and serves multi-unit homes. Larger complexes may be served differently, so owners should confirm whether their property is on city cart service or a commercial container arrangement.
Taxes after Arizona’s residential rental tax ban
Rent is no longer subject to city sales tax
Until the end of 2024, Arizona cities could levy transaction privilege tax (TPT), the state’s version of a sales tax, on residential rent. Yuma’s rate on residential rentals was 1.7%. Under SB 1131, cities have been barred from taxing residential rentals since January 1, 2025, and landlords were required to stop passing the tax on to tenants. The legislative summary of SB 1131 and the Arizona Department of Revenue’s guidance under A.R.S. 42-6004(H) describe the change. Commercial rentals in Yuma are still taxed at 1.70%.
For owners, the effect depends on how leases were written. Buildings where the owner previously absorbed the tax saw a direct reduction in costs. Buildings where tenants paid the tax as a separate line item had to remove it from rent statements. Either way, trailing 2024 financials will show a line item that no longer exists.
Property tax: Class 4 at 10%
Arizona classifies residential rental property as Class 4 under A.R.S. 42-12004, assessed at 10% of its limited property value under A.R.S. 42-15004. The limited property value, which is the value used to calculate most of the bill, generally cannot rise more than 5% a year unless the property is changed or its use changes. That cap gives Yuma owners more predictability than in states where a sale or reappraisal can reset taxes sharply.
The City of Yuma’s primary property tax rate for fiscal year 2027 is $2.1321 per $100 of assessed value, unchanged from the prior three years, although the total levy rises 2.51% as values grow. The city illustrates it as $213.21 in city tax on a $100,000 home. County, school district and special district rates are added on top, so the city rate is only one component of a total bill.
Payment dates and penalties
The Yuma County Treasurer’s real property tax schedule sets two installments:
- The first half is due October 1 and becomes delinquent at 5 p.m. on November 1.
- The second half is due March 1 and becomes delinquent at 5 p.m. on May 1.
- Delinquent taxes accrue interest at 16% simple a year.
- Paying the full year by December 31 waives interest on the first half.
At 16% interest, a late installment is an expensive mistake, so it pays to escrow taxes through a lender or put both dates on the calendar.
Registration and city programs
State rental registration with the county assessor
Arizona requires owners of residential rental property to register with the county assessor under A.R.S. 33-1902. The filing includes the owner’s contact information, the parcel and the year built, and it must be updated within 10 days of any change. Owners who live outside Arizona must name an Arizona statutory agent. The assessor may charge up to $10 per filing; Yuma County uses Department of Revenue Form 82901.
The statute lets cities impose penalties for failing to register: $1,000 plus $100 a month for newly acquired property that is not registered, or $150 a day in other cases, with the penalty dismissed if the owner complies within 10 days of notice. Buyers of Yuma apartment buildings should add registration to their closing checklist.
Building codes
The City of Yuma adopted the 2024 editions of the International Building Code, International Residential Code, International Existing Building Code and International Property Maintenance Code, effective November 3, 2025, and required for new permit applications starting February 1, 2026. For existing apartment buildings, the property maintenance code sets the baseline for conditions, and the existing building code governs renovations. Owners planning a renovation should budget for work to be designed and permitted under the 2024 editions.
Crime Free Multi-Housing
The Yuma Police Department runs a Crime Free Multi-Housing program in three phases: an eight-hour training course for managers, a security inspection using crime prevention through environmental design principles, and a resident safety social. Certification is renewed annually. The program takes staff time and is aimed at reducing the turnover and repair costs that come with problem tenancies. No City of Yuma rental inspection or rental registration program beyond the state’s assessor registration was found in public city materials.
Heat, roofs and HVAC: the climate line items
How hot Yuma runs
The National Weather Service’s climate normals for 1991–2020 show Yuma averaging 118 days a year at or above 100°F. The record is 148 such days, set in 2020, and the all-time high is 124°F on July 28, 1995. In 2024, Yuma reached 100°F for a record 100 consecutive days on September 6. Average annual rainfall is just 3.28 inches. The National Weather Service’s extreme temperature records document these figures.
What that means for maintenance budgets
Those numbers translate into specific budget lines:
- HVAC replacement and service. Cooling equipment in Yuma runs for a large share of the year at high load. Owners should budget for more frequent service and shorter replacement cycles than in milder markets, and should track the age of each unit in a building rather than relying on a single average.
- Roofs and exterior finishes. Intense sun and heat accelerate the aging of roofing materials, sealants and paint. Reflective roof coatings and regular inspection of flashing and penetrations are common preventive measures.
- Common-area cooling. Interior hallways, leasing offices and fitness rooms that are cooled year-round add to owner-paid electricity, which interacts with APS’s 4 p.m. to 7 p.m. on-peak window.
- Infrequent rain hides roof wear. With only about 3.28 inches of rain a year, sun-damaged roofs can go years without being tested by a storm, so scheduled inspections matter more than waiting for leaks.
- Pools. Where a property has a pool, it adds electricity for pumps, water lost to evaporation in the heat, and chemical costs.
Putting Yuma apartment operating costs together
When building or reviewing a budget for a Yuma apartment property, a few local adjustments stand out:
- Remove the old 1.7% city rental tax from any expense projections or tenant charges. It has not applied to residential rent since January 1, 2025.
- Carry an electricity contingency for 2027 until the ACC rules on APS’s rate request, which is due by December 31, 2026.
- Build water and sewer at 3.5% annual growth through the city’s five-year schedule, and confirm with the city how multifamily tiers apply to a master-metered account.
- Check for one-time items in trailing statements, such as the Water Resource Trust Fund surcharge or the November 2026 APS credit, before treating them as recurring.
- Use the 5% limited property value cap to project taxes, then add any changes in city, county and school rates.
- Calendar the October 1 and March 1 tax installments and the November 1 and May 1 delinquency dates, given 16% interest.
- Budget HVAC and roof reserves for 118 days a year above 100°F rather than using national averages.
Running each of these through an NOI calculator shows how sensitive a building’s income is to utilities and reserves in this climate. For local market context, see our Yuma market page and the Arizona market overview.
