Global Mapping Changes: 2026 Update to IRS “Tax Return End Date” Default Values

IRS Forms 4506-C (Cx3095 and Cx17841) and 4506 (Cx23) are used to request a tax return transcript or a copy of a tax return from the IRS. These forms include a “Year or period requested” section to indicate the tax period being requested. When the ConformX fields that populate this section are not set, the Requested Tax Return End Date fields default to the last day of the prior two calendar years—currently 12/31/2024 and 12/31/2023.

Because the federal income tax return filing deadline of April 15, 2026 has now passed, the following defaults have been updated:

• “Requested Tax Return 1 End Date” (field 30389) now defaults to 12/31/2025.
• “Requested Tax Return 2 End Date” (field 30390) now defaults to 12/31/2024.

These global mapping updates will not modify any client-specific custom values for these fields and will not override imported values. Other similar “End Date” fields on these and other IRS documents are not globally defaulted.

These changes are available for testing on Stage and Stage 2 servers and will take effect on April 28, 2026. If you have questions about this update, please contact Client Support at 1.800.497.3584.

T3S-27184

The preceding is for informational purposes only and is not and may not be construed as legal advice. No third party entity may rely upon anything contained herein when making legal and/or other determinations regarding its practices, and such third party should consult with an attorney prior to embarking upon any specific course of action.