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ONESOURCE IDT Determination Enterprise Cloud (AWS AMER) – AWS IP Address Change: October 31 Migration Canceled

Scheduled Maintenance Report for Thomson Reuters Corporates

Completed

The scheduled maintenance has been completed.
Posted Oct 29, 2026 - 19:20 CDT

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Oct 29, 2026 - 19:00 CDT

Scheduled

ONESOURCE IDT Determination Enterprise Cloud — AWS network change previously planned for October 31, 2026, has been canceled. A new date has not yet been confirmed; we will communicate the revised date in a further update.
Most customers need to take no action; standard URL/DNS-based SOAP and tax determination requests are unaffected.
In the meantime, action is required only if you allowlist TR's existing AWS NAT Gateway source IPs (incl. certain Oracle Fusion integrations); add the new IP addresses and retain both the existing and the new IP addresses until the production cutover is successfully completed and confirmed.
Existing IP addresses:
• 3.232.174.206
• 3.213.111.74
• 44.226.136.236
• 44.226.248.21
• 18.188.145.234
• 3.141.176.17
New IP addresses:
• 164.57.0.0/17
• 164.57.128.0/18
• 164.57.224.0/19
Posted Oct 29, 2026 - 18:55 CDT
This scheduled maintenance affected: Indirect Tax (ONESOURCE Determination Enterprise Cloud (AWS AMER)) and IDT Integrations (Oracle Fusion Tax Cloud - 2.x).