Landlord, Tenant and Roommate Resources
The Landlord/Tenant Handbook 
has been updated as of January 2019. A hard copy is available at our office at 2160 Spruce St., Boulder, CO 80302. To receive a hard copy by mail, please call 303-441-4364.
The information in The Landlord/Tenant Handbook does not constitute legal advice. Information contained in the handbook is current as of Jan. 1, 2019, but there is no assurance that the laws have not changed or been amended. This information is intended to serve only as a general guide and is not intended to be used as a substitute for seeking advice from an attorney or other qualified professionals.
The following information is intended to answer frequently asked questions. For complete information on a particular topic, please reference The Landlord/Tenant Handbook.
Security Deposit Interest Rate
Sample Documents
The Boulder Model Lease
Check-in/Check-out Forms 
Letter for Suggesting Mediation
Sample Roommate Agreement
Sample Letter to Request Repairs
Seven-Day Demand Letter
Sublease Forms
Three-Day Eviction Notice (CO State Publication JDF 101)
Past Security Deposit Interest Rates and Example Calculations
|
Year |
Percentage rate |
Multiplier |
|
prior to 12-5- 1985 12-5-1985 through 3-18-2004 3-19-2004 through 12-31-2004 1-1-2005 through 12-31-2005 1-1-2006 through 12-31-2006 1-1-2007 through 12-31-2007 1-1-2008 through 12-31-2008 1-1-2009 through 12-31-2009 1-1-2010 through 12-31-2010 1-1-2011 through 12-31-2011 1-1-2012 through 12-31-2012 1-1-2013 through 12-31-2013 1-1-2014 through 12-31-2014 1-1-2015 through 12-31-2015 1-1-2016 through 12-31-2016 1-1-2017 through 12-31-2017 1-1-2018 through 12-31-2018 1-1-2019 through 12-31-2019 |
no % required 5.5% 1.08% 1.85% 3.01% 3.89% 3.69% 1.88% 0.43% 0.35% 0.30% 0.25% 0.17% 0.16% 0.16% 0.16% 0.16% 0.75% |
N/A .055 .0108 .0185 .0301 .0389 .0369 .0188 .0043 .0035 .0030 .0025 .0017 .0016 .0016 .0016 .0016 .0075 |
Note: Due to a Colorado Supreme Court ruling that found last month’s rent to be pre-paid rent, interest is not due on last month’s rent held by the landlord. All other refundable deposits including pet deposits should be included in the computation.
Example computations:
A. $1,000 deposit on a two-year lease starting on Aug. 1, 2002, and ending July 31, 2004. Landlord received the deposit at lease signing on May 1, 2002, and is mailing it back on Sept. 27, 2004. $1,000 x .055 = $55 (this equals one year’s interest) divided by 12 = $4.58 (one month’s interest) x 29 (number of month’s held by landlord) =$132.82.
B. $800 deposit on a 13.5 month lease which rolled over into a month-to-month tenancy after the initial year written lease. Tenant moved in and paid the deposit on May 15, 2003 and moved out with proper notice on Sept. 30, 2004. Landlord is returning the deposit on Oct. 31, 2004. $800 x .055 = $44 divided by 12 = $3.67 (one month’s interest rate until May 15, 2004) x 12=$44.04 (or $44 even) plus $800 x .0108=$8.64 divided by 12 =$ .72 x 5.5 months =$3.96. Total interest due is $3.96 + $44 = $47.96.