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What water-saving rebates does Phoenix offer?

Updated June 26, 2026
Quick Answer

The City of Phoenix offers residential rebates up to about $75 for a WaterSense high-efficiency toilet (1.28 gpf or less), up to about $75 for a smart irrigation controller, and a grass-removal rebate near $2 per square foot. Apply through the City. Verify current amounts first.

What rebates the City of Phoenix offers

Phoenix focuses its residential dollars on equipment that cuts everyday indoor and outdoor use. Three programs do most of the work:

  • High-efficiency toilet rebate. The City offers up to about $75 when you install a WaterSense-labeled toilet. It must be rated at 1.28 gallons per flush (gpf) or less and replace an older toilet that uses 3 gpf or more. The rebate is generally capped at about two toilets per household every 10 years. It rewards swapping out the old water hogs, not adding new bathrooms.
  • Smart irrigation controller rebate. The City offers up to about $75 toward a WaterSense or weather-based smart controller. These adjust your sprinkler schedule to local weather instead of running on a fixed clock. EPA says a WaterSense controller can save an average home nearly 7,600 gallons a year. That is why the City helps pay for one.
  • Grass and turf removal rebate. Phoenix offers a turf-conversion rebate of roughly $2 per square foot of live grass replaced with low-water (xeriscape) landscaping. This program is aimed mostly at non-residential, commercial, and HOA properties, not single-family homes. Read the eligibility rules closely before you count on it.

One number is worth bolding. A pre-1994 toilet can use up to 6 gpf. Swapping it for a 1.28 gpf model is one of the biggest single water cuts a Phoenix home can make. The rebate just sweetens a change that pays for itself in lower bills.

How to apply and what paperwork you need

Phoenix handles these incentives through the City. The front door for most residents is myPHX311 (the phoenix.gov 311 portal, app, or the 602-262-3111 phone line). Some programs ask you to apply or pre-qualify before you buy. Others reimburse you after the install. So the order of steps matters. Check that on the incentives page first.

Plan to provide:

  • Your City of Phoenix water account information, since the rebate is credited to or tied to a Phoenix Water Services account at the service address.
  • An itemized receipt showing the purchase date, the model, and the price you paid.
  • Proof the product is WaterSense-labeled for the toilet and controller rebates. The packaging or product listing carries the WaterSense label. EPA also keeps a searchable product database you can use to confirm a model qualifies.
  • For toilets, details that show you replaced an older high-volume toilet rather than fitted a new bathroom. The City may ask for the old fixture's flush rating or photos.
  • For turf removal, before-and-after photos and the square footage converted. That is why the program leans toward larger commercial and HOA sites that can measure and verify the area.

Keep copies of everything. Rebate budgets are limited and can run out for the year. Applying early in the program cycle improves your odds.

Phoenix does not offer a rainwater-harvesting rebate

This is the accuracy point readers get wrong most often. Phoenix does not offer a rainwater-harvesting rebate. Rain barrels and passive water harvesting are legal in Arizona and usually need no permit. But in the City of Phoenix there is no cash incentive for installing them. The City's residential rebates cover toilets, smart controllers, and turf removal. That is the full list.

The confusion comes from Tucson, a separate city about 115 miles south. Tucson does run a rainwater-harvesting rebate worth up to roughly $2,000 for qualifying Tucson Water customers. That program belongs to Tucson, not Phoenix. You cannot claim it on a Phoenix water account. If you live in metro Phoenix and want help paying for rainwater capture, the City does not fund it. For the rules and what is allowed locally, see our page on rainwater harvesting in Phoenix.

Other Valley cities belong to the Arizona Municipal Water Users Association (AMWUA). Mesa, Tempe, Scottsdale, Chandler, Glendale, and Gilbert each run their own incentive menus. A rebate one city offers may not exist in the next. Confirm the program with the city that actually bills you for water.

Programs and amounts change, so verify before you buy

Water rebates are funded year to year. The dollar amounts, the eligible product lists, and even whether a program is open can all change. The figures here reflect recent Phoenix offerings, but they are time-sensitive. Treat them as a starting point. Confirm the live numbers before you spend money.

The City of Phoenix puts it plainly, describing the goal as helping customers "save water and money." That is the spirit of every program. The rebate is a one-time bonus on top of a lasting cut in your monthly bill. Before you buy, do two things. First, open the City's current residential water conservation incentives page and read the active amounts, caps, and steps. Second, confirm your chosen toilet or controller carries the WaterSense label. Non-labeled products usually do not qualify, even if they look efficient.

A quick check on sources helps too. The City of Phoenix sets the rebate rules and the money. EPA WaterSense defines what counts as a qualifying high-efficiency product. The Arizona Department of Water Resources (ADWR) and AMWUA publish the broader conservation guidance for the region. If a vendor quotes you a rebate figure, match it against the City's own page, not the sales sheet.

How to stack the savings

The rebate is the smaller half of the win. The bigger half is the lower bill that keeps coming every month after the install. Stacking them works like this:

  • Cut the gallons first. A 1.28 gpf toilet replacing a 6 gpf model can save thousands of gallons a year per toilet. A smart controller trims outdoor watering, the largest slice of a Phoenix home's summer use. Phoenix bills water in tiers and charges more per unit in the hot months. So trimming summer irrigation hits the most expensive water you buy.
  • Then claim the rebate. Apply through the City. The up to roughly $75 per qualifying toilet or controller comes back to you and lowers the real cost of the upgrade.
  • Stack the bill savings. Lower flush volume and weather-based watering shrink your water charge. Phoenix bases the sewer charge on winter water use, so a more efficient toilet can trim your wastewater charge too.

Installation quality matters for all of it. A toilet set on a fresh wax ring with no rocking, or a controller wired and programmed for your zones, is what delivers the savings the rebate is paying for. For what a swap involves, see our pages on the cost to replace a toilet and on low-flow fixture requirements in Arizona. If you want the work done right the first time, HQ Plumbing & Air installs WaterSense toilets and can set you up to capture the rebate while you lower your bill.

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