Why It Matters
Colorado voters will likely decide this November whether to dedicate motor vehicle sales taxes exclusively to transportation after negotiations between state lawmakers and the construction industry broke down without a deal. The outcome could reshape how Colorado funds roads — and how it pays for schools, healthcare, and other general services.
What Happened
The Colorado Contractors Association announced Tuesday it will move forward with a ballot measure to amend the state constitution and increase road funding, after a June 15 deadline passed without an agreement to suspend the campaign.
The measure, Initiative 175, would require the state to direct all motor vehicle sales taxes — and most sales taxes on auto parts — toward transportation spending. Currently, those revenues flow into the general fund and help pay for a broad range of state services.
Negotiations between the contractors association and state lawmakers failed to produce a compromise. An opposition coalition called Keep Kids First Colorado, which includes labor unions, education advocates, and healthcare providers, had urged the contractors to withdraw the measure before the deadline.
Legislative Democrats pushed back sharply after talks ended, saying the contractors walked away from a potential solution. Tony Milo, president and CEO of the Colorado Contractors Association, cast blame on the governor, saying “it’s unfortunate Gov. Jared Polis is forcing Coloradans to wait three more years to fix the roads, but in the meantime, they will get a much-needed break at the pump.”
By the Numbers
The financial stakes are significant. Nonpartisan state fiscal analysts project that Initiative 175 would create a $264 million hole in the general fund budget beginning July 1, growing to $539 million the following year as the transportation carve-out takes full effect.
Lawmakers anticipated the ballot measure’s potential passage and enacted a countermeasure earlier this session. House Bill 1430 requires the state to cut gas taxes and transportation fees if Initiative 175 is approved by voters — a provision that supporters say would cushion the blow to the general fund for at least three years while delaying the full impact of the constitutional change.
Zoom Out
Colorado’s road-funding standoff reflects a broader tension in state budgeting: transportation infrastructure needs compete with education, Medicaid, and other services for the same pool of tax revenue. Several other states have pursued dedicated transportation funding mechanisms through constitutional amendments in recent years, with mixed results depending on how general fund shortfalls were subsequently addressed.
Colorado’s budget picture is already under pressure. The dispute over Initiative 175 comes as the state navigates competing fiscal demands heading into the 2026 election cycle. Colorado’s energy sector has also seen significant structural shifts, with renewable energy’s share of the grid more than doubling since 2016, adding complexity to transportation and tax policy debates that touch on fuel consumption trends.
The November ballot fight will unfold against a politically charged backdrop. A competitive Democratic gubernatorial primary is set for June 30, meaning the next governor — whoever wins — could inherit an amended constitution requiring a significant reallocation of state tax dollars.
What’s Next
With the June 15 suspension deadline passed, the Colorado Contractors Association is expected to continue organizing its ballot campaign ahead of November. Voters will ultimately decide whether the constitutional amendment takes effect.
Opponents in the Keep Kids First Colorado coalition are expected to mount a campaign warning that redirecting hundreds of millions in tax revenue away from the general fund could reduce spending on education and healthcare programs. Lawmakers who supported HB 1430 as a counterweight will likely argue that the measure’s built-in gas tax relief provisions offer voters a more cautious path if Initiative 175 does pass.
The campaign will test whether Colorado voters prioritize direct infrastructure investment over the flexibility the state currently has to allocate motor vehicle-related tax revenue across multiple program areas.