The Centralized Authorization File (CAF number) is a database that the Internal Revenue Service uses to manage information regarding professionals appointed to act on behalf of others. The CAF number is not an authorization in and of itself. Rather, it identifies the file containing any legal authorizations that have been filed by a tax resolution professional. With it, IRS personnel can look up whether the tax professional has the authority to access the taxpayer’s data, rather than having to ask them to fax the signed authorization each time. Anyone working with tax resolution clients will want to get a CAF number to save time when communicating with the IRS.
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ABOUT THE AUTHOR

David Stone
Founder and President at IRS Solutions
After years of working as an IRS Officer, David changed sides and became an Enrolled Agent. In 2011, he used his experience to create IRS Solutions, a fully integrated system that incorporates all the tools that tax resolution pros need to streamline cases.