Arizona’s budget, built on guesses: Publish the math before the bill comes due

Gov. Katie Hobbs’ budget director, Ben Henderson, says Arizona’s new state budget achieved “the most consensus of any budget in 20 years,” even as a July 4 federal package he called the “One Big Beautiful Bill” scrambled assumptions across revenues, safety-net programs, and energy grants. That is Henderson’s read after a bruising cycle in divided government.

Here is the consequence for taxpayers: by Henderson’s own account, his team “had to make a bunch of guesses” about whether federal border reimbursements and other promised investments would arrive. When a state plan rests on federal ambiguity, the real risk is to the out-year bottom line if those dollars show up late, smaller, or not at all.

That is why the administration should publish, in one place, the full set of federal and economic assumptions used to build the 2026 plan, plus sensitivity tables showing what changes if Washington delays or denies key funding. If the budget leans on one-time federal cash for ongoing state commitments, that is an alarm bell and should be labeled clearly for voters.

Henderson also touts a process win, but “consensus” needs a definition. Was it wider bipartisan vote margins, fewer policy fights, or fewer budget gimmicks than prior years? The public deserves a clean accounting of what it took to land the deal, including the share of ongoing versus one-time spending, any rollovers, and the size of the structural balance after all maneuvers. Publish it, line by line.

On K-12, Henderson points to the aggregate expenditure limit as a rules relic that never contemplated computers in classrooms. If lawmakers choose to revisit that cap, taxpayers should demand modern guardrails that tie additional dollars to measurable outcomes and transparent reporting. Updating rules should not become a blank check; it should be paired with clear goals, timelines, and audits.

Henderson says the July 4 federal rewrite made it “very hard to keep Arizonans healthy and fed and safe.” That is the administration’s perspective. If state leaders intend to backstop potential federal shortfalls in safety-net programs, the plans should include explicit triggers, sunsets, and cost caps so emergency aids do not quietly become permanent obligations without results reviews.

The director’s examples of priorities include childcare, K-12, and, if the chess game is played right, “tens of millions” for homelessness prevention. Those are large claims with real price tags. The budget should publish program-level performance metrics up front: cost per family served, cost per additional third-grader reading at grade level, cost per sustained exit from homelessness at 12 and 24 months. Fund what works, fix or end what does not.

On transparency, Henderson says too many people profit from keeping the budget obscure and notes OSPB has updated its website. Good start. Next steps are straightforward: machine-readable data for every line item, five-year histories and projections, a contract and grant ledger, and a forecast-to-actual scorecard after each quarter so Arizonans can track promises against performance.

Henderson casts divided government as the inevitable fight over where the next dollar goes, public safety or K-12. Fine. Then start with shared facts. Give the public a plain-English general fund picture that separates ongoing from one-time items, lists every federal dependency, and shows the contingency plan if D.C. money does not arrive as modeled.

Chess metaphors are fine, but taxpayers need arithmetic and receipts. OSPB and JLBC should jointly release the assumptions memo, the contingency matrix for federal funds, and quarterly variance reports. If the 2026 deal truly set a new high-water mark for consensus, it should also set one for clarity and measurable results.

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