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ONESOURCE Determination 2026 Holiday Blackout Period

Scheduled for Nov 20, 00:00 - 00:05 CST

Scheduled

The 2026 holiday blackout period will run from Friday, November 20, 2026, through Saturday, January 2, 2027. During this time, we pause planned system upgrades and maintenance to ensure maximum stability during the busy year-end season. Your operations will not be affected. This blackout is designed to provide you with the most stable and reliable service during your peak processing period.
Posted Nov 11, 2026 - 09:07 CST
This scheduled maintenance affects: Indirect Tax (ONESOURCE Determination Enterprise Cloud (AWS AMER), ONESOURCE Determination Enterprise Cloud (AWS EMEA), ONESOURCE Determination Enterprise Cloud (OCI AMER), ONESOURCE Determination Enterprise Cloud (OCI MENA), ONESOURCE Determination Anywhere (AWS AMER), ONESOURCE Determination Anywhere (OCI AMER), ONESOURCE Determination Anywhere (OCI MENA)).