Online Petition Filing System - Terms of Use

Dear Stakeholder: As of October 7th the BAA moved to a new, more efficient online case management system. This new system is designed to simplify navigation through the property tax appeal process and offers improved ease and functionality. All petitions submitted after October 6th must be filed through the new system. The link for that system may be found at https://oitco.hylandcloud.com/DOLABAAExternalAccess/ .

Only petitions submitted through our legacy system by October 6 will be considered as filed. If you have a saved, partially completed petition in the legacy filing system after October 6, you will need to create a new petition within the new case management system at https://oitco.hylandcloud.com/DOLABAAExternalAccess/ . If you have a question about your petition please contact the BAA at baa@state.co.us.

We look forward to working with you.

Thank you,
The BAA Staff


Colorado Board of Assessment Appeals
Online Petition Filing System
Terms of Use

Welcome to the Online Petition Filing System for the Colorado Board of Assessment Appeals (the “BAA”).

This website will walk you through completing and filing an online petition for appeal to the BAA and the payment of the appropriate filing fee, if any. You may use this website to file any type of BAA appeal. The BAA hears appeals of decisions made by county boards of equalization, boards of county commissioners and the State Property Tax Administrator relating to valuation, classification and exemption of property for property tax purposes.

You are solely responsible for the accurate and timely filing of your appeal with the BAA. If your appeal is filed using this Online Petition Filing System, you will receive an automated receipt by email showing that your appeal was received. If you do not receive this automated receipt, please call our office prior to the deadline for filing the appeal in order to ensure that we received your appeal.

You are strongly encouraged to read the Instructions and Rules of the Board of Assessment Appeals prior to completing and filing a petition. The Instructions and Rules are available on the BAA web page at: dola.colorado.gov/baa or may be requested by phone.

If you have any questions, please call 303-864-7710 or email the BAA at baa@state.co.us .

Testing for this application was primarily conducted using a Mozilla Firefox internet browser. As a result, users may find that this application works best when using a Mozilla Firefox internet browser. This application may also work with Internet Explorer 9+ and Google Chrome. This application does not work with Internet Explorer 8 and earlier. You can view the Colorado.gov policy on supported browsers here (https://www.colorado.gov/supported-browsers) .

When using this application, users should use the "Previous Screen" links on each page, rather than using the back button on their internet browser. Using the back button on the internet browser may result in unexpected problems with the application.

IMPORTANT NOTE: Due to some needed technical requirements for this system, JavaScript must be enabled on your browser. These features may not be in full compliance with accessibility standards as outlined here . If you have a disability and cannot access certain areas of this system, please contact the Board of Assessment Appeals at 303-864-7710 for further help.

Acceptance of the terms of use is required prior to accessing the online petition filing system.


I understand and agree to the above terms for using this system.


When using this application, users should use the "Previous Screen" links on each page when available, rather than using the back button on their internet browser. Using the back button on the internet browser may result in unexpected problems with the application.

BAA Contact Us