Recent Legislation
2025 Property Tax Legislation
The following bills have been signed into law or are awaiting the governor’s signature. Please refer to the Colorado General Assembly website for more information on the bills and to access bill text.
- HB25-1040: Adding Nuclear Energy as a Clean Energy Resource
- HB25-1080: Wireless Telephone Infrastructure Deployment Incentives
- HB25-1219: Requirements for Better Understanding Metropolitan Districts
- HB25-1289: Metropolitan District Leases & Property Tax Exemptions
- HB25-1324: Clarify Property Tax Objection & Protest Deadlines
- SB25-035: Limitation of Actions Against Appraisers
- SB25-259: Eliminate Destroyed Property Tax Reimbursement Program
- SB25-261: Property Tax Deferral Program Administration
- HB25-1296/SB25-026: Modified 39-1-104.2
Legislative summaries are below. If you have questions, please contact Tony Werckman at tony.werckman@state.co.us or at 303-864-7767.
House Bills
HB25-1040 - Adding Nuclear Energy as a Clean Energy Resource
This bill expands the definition of “clean energy” to include certain nuclear energy projects and adds nuclear energy to the definition of a “clean energy resource.” For property tax purposes only however, “clean energy resource” does not include nuclear energy property.
Signed by Governor Jared Polis: March 31, 2025
Effective Date: August 6, 2025
Effective Property Tax Year: 2025
HB25-1080 - Wireless Telephone Infrastructure Deployment Incentives
This bill allows counties, special districts, and school districts to offer property-tax incentive payments, or credits to a taxpayer that establishes or expands a qualified communication service facility, if the facility serves an unserved or underserved area. An incentive payment or credit may not exceed the amount of taxes levied upon the taxable real or personal property located at, or within, the qualified communication services facility for the current property tax year. Counties and special districts may adjust their mill levy by an additional amount that does not exceed the total amount of annual incentive payments or credits made pursuant to this Act.
Signed by Governor Jared Polis: May 30, 2025
Effective Date: August 6, 2025
Effective Property Tax Year: 2025
HB25-1219 - Requirements for Better Understanding Metropolitan Districts
This bill requires metropolitan districts to provide more detailed information in their service plan as well as on their website.
District meeting notification requirements have been updated, including a requirement that districts mail or email all property owners according to the assessor’s ownership records.
Sellers of property are now required to provide buyers with a written disclosure that actions by the metropolitan district may increase costs to residents of the district.
Signed by Governor Jared Polis: May 29, 2025
Effective Date: August 6, 2025
Effective Property Tax Year: 2025
HB25-1289 - Metropolitan District Leases & Property Tax Exemptions
Current law grants a property tax exemption to real property that is leased or rented by a metropolitan district or government entity, pursuant to §39-3-124(1)(b)(1)(A), C.R.S., and requires that the entity claiming property tax exemption to file a copy of the lease with the county assessor’s office.
This bill expands filing requirements for the metropolitan district to include a statement of use of the leased property and outlines what must be included in this statement. It also adds a requirement that the county assessor’s office contact the metropolitan district’s governing body within a set timeline should the statement include any disclosed conflict of interest. Finally, the governing body must issue a written decision in response to the assessor’s office notification within a set timeline. If the governing body determines that the leased property is not used for public purpose, the leased property is not exempt from taxation and the county assessor shall implement the governing body’s decision, which is not subject to appeal.
This bill also clarifies that if a leasehold interest owned by a private person has been leased to a metropolitan district, and is then leased back to a private person, that leasehold interest is taxable to the owner.
Signed by Governor Jared Polis: Currently not signed
Effective Date: August 6, 2025
Effective Property Tax Year: 2025
HB25-1324 - Clarify Property Tax Objection & Protest Deadlines
This bill provides statutory clean-up language to include counties that are required to use the alternate protest and appeal procedure. It also corrects the assessor real property appeal hearing conclusion date to from June 1 to June 8 to comport with 39-5-122(1)(a), C.R.S. The statutes with the clean-up language are; §§ 39-5-122, 39-5-123, 39-8-104, 39-8-105, 39-8-106, and 39-8-107, C.R.S.
There are no new requirements for county assessors in this bill.
Signed by Governor Jared Polis: Currently not signed
Effective Date: Upon signature
Effective Property Tax Year: 2025
Senate Bills
SB25-035 - Limitation of Actions Against Appraisers
Current law provides that the statute of limitations to bring claims against an appraiser does not start until the discovery of an alleged defect.
This bill establishes a five-year statute of limitations for initiating legal action against an appraiser measured from the date the appraisal report is completed and transmitted to a client, with exceptions for consumers who are original parties to the transaction, and for mortgage originators who are required to repurchase loans due to appraisal defects.
Additionally, the statute of limitations for claims involving fraud and intentional misrepresentation, outlined in §13-80-101, C.R.S., and discriminatory housing practices, outlined in Article 34 of Title 24, C.R.S., remain unchanged by this bill and must be brought within the time frames specified in accordance with those statutes.
This bill does not directly affect the assessor's office staff and is provided for informational purposes.
Signed by Governor Jared Polis: Currently not signed
Effective Date: August 6, 2025
SB25-259 - Eliminate Destroyed Property Tax Reimbursement Program
Beginning January 1, 2025, property destroyed by natural causes is no longer subject to a reimbursement from the state and eliminates the need for assessors to submit destroyed-property reports to county treasurers.
Signed by Governor Jared Polis: April 25, 2025
Effective Date: April 25, 2025
Effective Property Tax Year: 2025
SB25-261 - Property Tax Deferral Program Administration
In 2022, the Property Tax Deferral Program was expanded to allow applicants other than senior citizens and active duty members of the military to apply for and receive a property tax deferral. Additionally, the administration of the program was changed from county treasury offices to the state treasury office.
SB25-261 reverts these changes beginning in 2025. Under this bill, the program is again only available for senior citizens and active duty members of the military beginning July 1, 2025. Additionally, the administration of the program reverts back to the county treasury offices in 2025.
Signed by Governor Jared Polis: Currently not signed
Effective Date: July 1, 2025
Effective Property Tax Year: 2025
HB25-1296/SB25-026 - Modified 39-1-104.2
This amendment corrects an error in §39-1-104.2(3)(s)(I), C.R.S, part of the qualified-senior primary classification statutes. It removes the requirement that a TABOR surplus must exist in order for the qualified-senior primary residence classification to receive the actual value reduction of 50% of the first $200,000, with a minimum of $1,000 assessed value.
This amendment was included on two different bills to ensure passage of this correction.
Since HB25-1296 has the safety clause and SB25-026 has the petition clause, the bill will go into effect once HB25-1296 is signed or, if it is vetoed, then August 6th, assuming that SB25-026 is not vetoed.
Signed by Governor Jared Polis: May 16, 2025
Effective Date: May 16, 2025
Effective Property Tax Year: 2025