SALC
SOUTHERN ARIZONA LEADERSHIP COUNCIL
November 2026 ballot policy briefs

Proposition
141

Vehicle mileage tax prohibition

A constitutional prohibition on mileage-based taxes and fees, with a consent requirement for rules that monitor or limit vehicle miles.

VOTE NO

Who votes: Arizona voters
Type: Constitutional amendment
How it reached the ballot: Legislative referral
Our perspective

Keep options open for the roads ahead.

Southern Arizona needs roads that can keep pace with our economy and workable ways to pay for them. We oppose closing off a potential funding option before its costs, benefits and safeguards can be evaluated. As vehicles and travel patterns change, Arizona needs room to consider solutions.

What the measure changes

Major Impacts

  • A constitutional restriction. State and local governments could not impose mileage-based taxes or fees. The prohibition would remain in the Constitution unless voters later amend it.
  • Consent for monitoring. Rules that monitor or limit the miles a person travels would require voluntary consent.
  • Specified exceptions. The restrictions exclude certain interstate commercial-vehicle agreements and government-owned and operated vehicles.

Does a NO vote create a mileage tax?

No. It rejects this prohibition. The measure itself also offers no replacement transportation funding plan.

SALC Recommends: VOTE NO on Proposition 141

Rejects the amendment. Does not enact a mileage tax.

A closer look

Common Questions

Does SALC support a mileage tax?

Opposing this measure does not mean endorsing a particular mileage tax. We support evaluating funding options on their merits before ruling them out.

Does it prohibit every form of vehicle monitoring?

No. The proposal addresses rules or laws that monitor or limit vehicle miles. It allows voluntary consent and includes specific exceptions.

Does the measure offer another way to pay for roads?

No. It restricts a potential funding method without providing a replacement transportation funding plan.

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