Senior Tax Exemption

Senior Homestead Property Tax Exemption

The Colorado Constitution establishes a property tax exemption for qualifying senior citizens, surviving spouses of senior citizens who previously qualified, and for Disabled Veterans.
If you wish to apply for the exemption, and will qualify as of January 1, 2021, and wish to receive a form to fill out, you may have your name added to our mailing list by calling our office at 303-441-3530, or emailing .


The deadline for 2021 applications has passed. The Assessor’s Office can no longer accept applications for tax year 2021. To be added to our mailing list for 2022 applications please call our office or email Please provide your property address or account number.

Effect on Taxes

    • The exemption goes into effect for tax year 2021.
    • The discount will first appear on the tax bill sent in January 2022.
    • The exemption remains in effect until a disqualifying event occurs*, such as:
      • Sale of property
      • Property is moved into a trust, LLC or other legal entity*, or
      • Surviving Spouse*, or
      • Home destroyed by a natural disaster*

* A Long Form application must be submitted in order to continue the exemption.


To qualify to apply for the 2021 tax year (payable in 2022), seniors:

  • Were born on or before January 1, 1956, and
  • Lived in the home continuously starting before January 1, 2011, and
  • Owned the home continuously starting before January 1, 2011.

Exemption Amount

For those who qualify, 50 percent of the first $200,000 in actual value of their primary residence is exempted, for a maximum exemption amount of $100,000 in actual value. The State of Colorado pays the property taxes on the exempted value.

If you have any questions, please email .

Contact Us

Phone: 303-441-3530 option 1
Fax: 303-441-4996

Business Personal Property
Phone: 303-441-3530 option 2
Fax: 303-441-1783


Schedule a meeting

Mailing Address
Main: PO Box 471
Boulder, CO 80306-0471


Assessor Boulder & Longmont Drop Boxes

1325 Pearl St., 2nd floor
Boulder, CO 80302
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Hours: 7:30 a.m.–5 p.m. M–Th

515 Coffman Street, Suite 114
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1376 Miners Dr., Unit 105
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Please note: the Lafayette office will be closed until October 26.