This version of the form is not currently in use and is provided for reference only. Download this version of IRS Form 433-B (OIC) for the current year.
This is a tax form that was released by the Internal Revenue Service (IRS) - a subdivision of the U.S. Department of the Treasury on April 1, 2020. As of today, no separate filing guidelines for the form are provided by the IRS.
Download a fillable version of IRS Form 433-B (OIC) through the link below or browse more documents in our library of IRS Forms.