The IRS publishes changes to tax forms on an annual basis. For a tax form, the purpose for a given box number on the form can be changed, moved to a different box, or no longer used. The Tax Form Field Box Cross Reference (TAXBXRF) page provides the Box Number and Caption for each tax form for a given Tax Year that can be printed by the Tax Form Printing process. Records cannot be added/deleted/modified directly on this page. Instead, table records are defined for each Tax Year for each IRS tax form and each box on the form as part of the annual statutory tax changes beginning with 2016. This table is also used by the IRS Transmittal File Generation process to obtain the amount codes for the specific Form Type for the tax year.