Developmental Disabilities Tax
Young girl with disabilities riding in an assisted mobility device with a caregiver by her side

Developmental Disabilities Tax

Watch a Community Presentation on the Intellectual and Developmental Disabilities (I/DD) Needs Assessment Report.

Watch this webinar for a presentation of the results of a needs assessment on Boulder County’s Intellectual and Developmental Disabilities (IDD) services continuum, completed in January 2019 by OMNI and Keystone Policy Center. The webinar provides an overview of the IDD needs assessment, shares high level needs assessment finding and recommendations at this time.

The Intellectual and Developmental Disabilities (I/DD) Needs Assessment Report is here.

Over the past several months, through online surveys, community forums, and individual interviews and small group conversations, community members who receive I/DD services, their family members, and I/DD community service providers shared their input around current services and potential gaps to help inform the I/DD Assessment. The assessment was conducted by OMNI Institute, Keystone Policy Center, and Boulder County Housing and Human Services.

Documents related to this assessment (click the links to see them):

Thank you!

We are grateful to the hundreds of community members and organization representatives who helped inform this I/DD Services Assessment!

Please note that for the purposes of the assessment, intellectual and developmental disabilities are defined as:

  • A disability that is manifested before the person reaches 22 years of age or brain injury acquired as an adult
  • A disability attributed to a diagnosed intellectual disability or related conditions which include cerebral palsy, epilepsy, autism, or other neurological conditions when such conditions result in either impairment of general intellectual functioning or adaptive behavior similar to that of a person with a diagnosed intellectual disability.

A Health and Human Services Property Tax

The Development Disabilities property tax, approved by voters in 2002, supplemented an existing mill levy to support developmental disabilities programs in Boulder County. Funding from this tax pays to help people of all ages with cognitive and developmental disabilities live fuller, more satisfying and independent lives.

The majority of funding supports Imagine! a local nonprofit that provides services such as:

  • Education and therapy
  • Work opportunities in the community
  • Recreational learning and leisure activities
  • Facilitation of independent and group living
  • Support for families that care for their children at home
  • Guidance in every day living

Tax Calculations and Allocations

1.5-mill property tax*:

  • One mill to fund services for developmentally disabled persons
  • Half mill to Health and Human Services.

Allocation Restrictions

  • Incremental mill levy increase to bring county funding of developmental disabilities programs up to one mill.
  • Remainder of funds to be allocated to health and human services organizations to backfill state cuts in funding.

After ensuring one full mill of property taxes goes to developmental disabilities, the remainder of funds raised by this tax are allocated to health and human services in Boulder County. Programs that receive funding include:

  • Aging Services
  • Community Services
  • Social Services
  • Juvenile Diversion Program
  • District Attorney’s Community Justice Program
  • Via Mobility Services
  • And more

* At current assessed value rates (which may change in 2017), for every $100,000 of residential actual value (as valued by the Assessor), a tax levy of one mill would yield $7.96 in property tax payable. For more information on property taxes, please visit the Treasurer’s Office webpage.

Contact Us

Commissioners’ Office


Commissioners' website


Commissioners’ Office
Boulder County Courthouse
Third Floor
1325 Pearl St.
Boulder, CO 80302
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Hours: 8 a.m. to 4:30 p.m.

Mailing Address

PO Box 471
Boulder, CO 80306