October 2025 release information
Release Date: October 2025
For documentation and other product information, search the Knowledge Center.
Notifications
Customers are encouraged to upgrade to the new ONESOURCE Calendar, which brings enhanced functionality, greater customization options, and an improved user experience. The classic version of ONESOURCE Calendar will be retired and no longer available after March 2026.
note
This doesn’t apply to those users who use the full ONESOURCE Workflow Suite.
Important deadline information
The following deadlines may be different for the current tax year due to one-off extensions granted by the tax authority. These deadlines won’t be updated in Calendar Classic at this time:
Jurisdiction code | Potential taxpayers or event template name | Calendar deadline | Special extension deadline | Information |
|---|---|---|---|---|
USA | Taxpayers impacted by storms, straight-line winds, flooding, and landslides in Kentucky | February 14, 2025 – November 2, 2025 | November 3, 2025 | |
USA | Taxpayers impacted by storms, tornadoes, and flooding in Arkansas | April 2, 2025 – November 2, 2025 | November 3, 2025 | |
USA | Taxpayers impacted by storms, straight-line winds, tornadoes, and flooding in Tennessee | April 2, 2025 – November 2, 2025 | November 3, 2025 |
Upcoming obsolete event templates
The following Event Templates that will soon be marked as obsolete. Rescheduling the new Event Template may be required:
Jurisdiction code | Form number (if available) | Event template name | Replacement event template | Effective date |
|---|---|---|---|---|
NH | NH DP-10 | New Hampshire Interest and Dividends Tax Return | n/a | Tax Year 2024 |
NH | NH DP-59-A | New Hampshire Interest and Dividends Tax Extension Request | n/a | Tax Year 2024 |
Current content priorities
The following Tax Law Updates are current content priorities:
Jurisdiction | Update |
|---|---|
France | Gradual phasing out of the Company Value Added Contribution (CVAE) until its final abolition by 2030. |
New Jersey | Proposed a new simplified standardized return to replace the CBT-100 and CBT-100U. |
North Carolina | Introduction of a new 7-month extension to file the franchise and income tax return for tax years beginning on or after January 1, 2025. |
New Hampshire | Phasing out of New Hampshire Interest and Dividends Tax Return and Extension Request (NH DP-10 and NH DP-59-A) after November 15, 2025, and substituting it with a new tax, effective December 31, 2025. |