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Assessors Office

Proposition HH Ballot Measure

What would this measure do?

Proposition HH would make various changes to state property taxes and changes to state revenue limits, including: [1]

  • reducing property tax rates
  • creating two new subclasses of residential property effective in 2025
  • providing funds to local governments to make up for decreased property tax revenues, referred to as backfilling
  • creating a limit on local government property tax revenue
  • creating a new cap on state revenue (Proposition HH Cap) allowing the state to retain revenue up to the newly created cap, that it would otherwise be required to refund to residents under the Colorado Taxpayer’s Bill of Rights (TABOR).[1]

Why is this measure on the ballot?

This measure requires voter approval under TABOR since it would increase state revenue.

In Colorado, a legislatively referred state statute must be passed by a simple majority vote in each chamber of the state legislature. Legislatively referred measures do not need to be signed by the governor. Due to the Colorado TABOR, statewide voter approval is required to enact any legislation to increase government revenue at a faster rate than the combined rate of population increase and inflation. To read about the Taxpayer’s Bill of Rights, click here.

The measure was introduced as Senate Bill 23-303 on May 1, 2023. After amendments, on May 8, 2023, the measure was passed in the House by a vote of 44-2 with three members absent and in the Senate by a vote of 23-12. The measure was passed along partisan lines with Democratic members in favor and Republican members opposed. Governor Jared Polis (D) signed the bill on May 24, 2023.[1]


Prop HH Online resources: