2025 Combined release and system maintenance schedule
This table lists the dates and times that ONESOURCE Tax Information Reporting (OTIR) may be unavailable during 2025 due to a scheduled event (such as a software release or system maintenance). We'll publish advance notice on the Corporate Status website.
Dates | Scheduled event | Start time | End time | Deadline for customer requests |
|---|---|---|---|---|
February 18, 2025 | OTIR Release 24.07 | 7 PM CT February 18, 2025 | 6 AM CT February 19, 2025 | January 7, 2025 |
March 22, 2025 | OTIR System maintenance | 10 PM CT March 22, 2025 | 7 AM CT March 23, 2025 | N/A |
April 22, 2025 | OTIR Release 25.01 | 7 PM CT April 22, 2025 | 6 AM CT April 23, 2025 | March 11, 2025 |
April 26, 2025 | OTIR System maintenance | 10 PM CT April 26, 2025 | 7 AM CT April 27, 2025 | N/A |
May 24, 2025 | OTIR System maintenance | 10 PM CT May 24, 2025 | 7 AM CT May 25, 2025 | N/A |
June 17, 2025 | OTIR Release 25.02 | 7 PM CT June 17, 2025 | 6 AM CT June 18, 2025 | May 6, 2025 |
June 21, 2025 | OTIR System maintenance | 10 PM CT June 21, 2025 | 7 AM CT June 22, 2025 | N/A |
July 26, 2025 | OTIR System maintenance | 10 PM CT July 26, 2025 | 7 AM CT July 27, 2025 | N/A |
August 12, 2025 | OTIR Release 25.03 | 7 PM CT August 12, 2025 | 6 AM CT August 13, 2025 | July 1, 2025 |
August 23, 2025 | OTIR System maintenance | 10 PM CT August 23, 2025 | 7 AM CT August 24, 2025 | N/A |
October 21, 2025 | OTIR Release 25.04 | 7 PM CT October 21, 2025 | 6 AM CT October 22, 2025 | September 9, 2025 |
October 25, 2025 | OTIR System maintenance | 10 PM CT October 25, 2025 | 7 AM CT October 26, 2025 | N/A |
November 22, 2025 | OTIR System maintenance | 10 PM CT November 22, 2025 | 7 AM CT November 23, 2025 | N/A |
December 2, 2025 | OTIR Release 25.05 | 7 PM CT December 2, 2025 | 6 AM CT December 3, 2025 | October 22, 2025 |
December 27, 2025 | OTIR System maintenance | 10 PM CT December 27, 2025 | 6 AM CT December 28, 2025 | N/A |
December 30, 2025 | OTIR Release 25.06 | 7 PM CT December 30, 2025 | 6 AM CT December 31, 2025 | November 19, 2025 |
February 17, 2026 | OTIR Release 25.07 | 7 PM CT February 17, 2026 | 6 AM CT February 18, 2026 | January 6, 2026 |
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Prior release and system maintenance schedules
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