Senior Deferral Information

What is the senior tax deferral program?

The senior tax deferral program is offered by the State of Colorado. It allows you to postpone your tax payments until you sell your property, or your estate is settled after your death.  Interest is applied to the amount you defer. You can defer either the whole amount of your taxes, or half your taxes. The Boulder County Treasurer’s Office collects the information and sends it to the State of Colorado who manages the program, makes all the decisions, and then notifies the county treasurers who has been approved or disapproved.

2015 interest rate is 2.25%


General requirements

  • You must be 65 years old on or before January 1 of this year.
  • You cannot be earning income from the property (i.e., renting the property) but you can have a home office.
  • If your property is in a trust you must be named the trustee and the beneficiary of the trust. 
  • If you have a reverse mortgage you can not apply for a Senior Tax Deferral
  • The completed application must be returned to the Treasurer's Office no later than the close of business (4:30 pm) March 30th.

To receive an application, you need to provide the following information to the Treasurer's Office: 

  • Your full name
  • If the property is held in a trust, the name of the trust
  • Property address
  • Your date of birth
  • Phone number
  • Name of your mortgage company (if applicable)
  • Approximate balance on your mortgage


Treasurer's Office

303-441-3598 (fax)

Mailing Address

PO Box 471
Boulder, CO 80306-0471

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