Deadline to apply for Qualified Senior Primary Residence Classification is March 15
- Moved and lost the Senior Property Tax Exemption? You may still qualify for property tax relief through the Qualified Senior Primary Residence Classification.
- If approved, $100,000 of your home’s value will not be taxed.
- Apply by March 15, 2026 (late applications accepted through July 15).
- The Boulder County Assessor’s Office can help you determine eligibility and complete the application.
BOULDER COUNTY, Colo. — If you’re a Boulder County older adult who moved to a new primary residence and lost the Senior Property Tax Exemption, you may be able to keep a similar tax reduction through a statewide program called the Qualified Senior Primary Residence Classification.
This program is designed for seniors who previously qualified for the Senior Exemption on or after January 1, 2020, but are no longer eligible, most commonly because they changed their primary residence. If approved for tax year 2026, the reduction will appear on the 2027 property tax bill.
What the program does
For those who qualify, $100,000 of the actual value of a primary residence is not taxed (unless it would reduce the assessed value below $1,000). The classification applies to owner-occupied primary residences, including single-family homes, condos, townhomes, duplexes, and multi-family residences.
Key deadline (tax year 2026)
- On-time deadline: March 15, 2026
- Late filing window: March 16 through July 15, 2026 (late filers do not have the right to appeal if denied).
How we’ll help Boulder County seniors apply
The Assessor’s Office can help you:
- Confirm whether you may qualify based on your prior Senior Exemption approval and current primary residence status (if your previous home was in Boulder County)
- Find the correct application and instructions (including state downloadable forms)
- Understand submission options and deadlines so your application is filed on time
“Boulder County older adults have given so much to our community, and they deserve to receive every benefit for which they’re eligible,” said Assessor Cindy Braddock. “If you’ve moved or your situation has changed, our office is here to help you understand this statewide program, complete the paperwork correctly, and meet the deadlines—so you don’t miss out on property tax relief.”
Where to get forms and where to send them
- Forms are also available at Assessor’s Office locations in Boulder, Lafayette, and Longmont.
- Mail completed forms to: Boulder County Assessor, PO Box 471, Boulder, CO 80306-0471
Questions? Contact us
- Email (senior exemption/program help): AssessorSX@BoulderCounty.gov
- Phone: 303-441-3530
- General email:assessor@bouldercounty.gov
A quick clarification
This classification is not the same as other programs that provide tax credits or rebates through income tax returns managed by other agencies.
For statewide program questions, Colorado’s Division of Property Taxation can also assist at dola_dpt_frontdesk@state.co.us