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Collin CAD

Agent Appeals

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Welcome to the Collin CAD
Agent Appeals eFile Site


This Agent Appeals eFile site is used for submitting protests, uploading evidence, and processing settlements & withdrawals.  You can also perform AOA Maintenance and view/download the CAD evidence files and the Appraisal Notice from here.

You can still utilize the legacy Agent Portal for informal informational purposes only.  There you can view the informal procedures, appraiser contact information, TopLine procedures, and your scheduled formal ARB Hearing Docket.  You can access the legacy portal at:  Agent.CollinCAD.org

For technical issues with either site, please submit a help ticket at:  Help.CollinCAD.org/efile

For questions regarding AOA maintenance or protest details, please contact the Agent Coordinator by email at:  

If you are a property owner, please use our Taxpayer Portal at:  OnlinePortal.CollinCAD.org

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