Welcome to the Thomson Reuters Corporate Tax and Trade Status page – This is the centralized resource for real-time visibility into the performance and availability of all Thomson Reuters Corporate Tax and Trade products.
This portal provides updates on service status, ongoing incidents, scheduled maintenance, and performance issues across our Corporate Tax and Trade product suite. Our goal is to keep you informed with timely, accurate information so you can plan your work accordingly.
For proactive notifications, subscribe to updates to receive alerts about status changes and incidents affecting your specific Corporate Tax and Trade products.
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 28, 2026 - 00:00 CST
Jan 28, 2026 - 00:00 CST
Scheduled - ONESOURCE Platform will be performing emergency maintenance in UAT on our systems to ensure optimal performance and reliability. During this maintenance window, certain services may experience some issues. In such cases, we recommend trying after some time. We apologize for any inconvenience this may cause and appreciate your patience and understanding. If you have any urgent inquiries or require assistance during the maintenance period, please contact our support team. Thank you for your cooperation.
Jan 28, 2026 00:00-06:00 CST
Jan 28, 2026 00:00-06:00 CST
WorkFlow Tools
Operational
AMERS Calendar
Operational
AMERS Calendar Classic
Operational
AMERS FileRoom
Operational
AMERS WorkFlow
Operational
AMERS WorkFlow Manager Classic
Operational
APAC Calendar
Operational
APAC Calendar Classic
Operational
APAC FileRoom
Operational
APAC WorkFlow
Operational
APAC WorkFlow Manager Classic
Operational
EMEA Calendar
Operational
EMEA Calendar Classic
Operational
EMEA FileRoom
Operational
EMEA WorkFlow
Operational
EMEA WorkFlow Manager Classic
Operational
Platform
Under Maintenance
AMERS (onesourcetax.com)
Operational
AMERS (onesourcelogin.com)
Operational
AMERS Administration
Operational
AMERS API Administration
Operational
AMERS UAT (uat.onesourcetax.com)
Under Maintenance
AMERS UAT (uat.onesourcelogin.com)
Under Maintenance
APAC (apac1.onesourcetax.com)
Operational
APAC (onesourcelogin.com.au)
Operational
APAC Administration
Operational
APAC API Administration
Operational
EMEA (emea1.onesourcetax.com)
Operational
EMEA (onesourcelogin.eu)
Operational
EMEA Administration
Operational
EMEA API Administration
Operational
UAT API Administration
Operational
Data Tools
Operational
AMERS Audit Manager
Operational
AMERS DataFlow
Operational
AMERS Data Hub
Operational
AMERS General Ledger Manager
Operational
AMERS R&D Tax Credit Manager
Operational
AMERS SAP Trial Balance Integration
Operational
AMERS Workpapers
Operational
APAC Audit Manager
Operational
APAC DataFlow
Operational
APAC Data Hub
Operational
APAC General Ledger Manager
Operational
APAC R&D Tax Credit Manager
Operational
APAC SAP Trial Balance Integration
Operational
APAC Workpapers
Operational
EMEA Audit Manager
Operational
EMEA DataFlow
Operational
EMEA Data Hub
Operational
EMEA General Ledger Manager
Operational
EMEA SAP Trial Balance Integration
Operational
EMEA R&D Tax Credit Manager
Operational
EMEA Workpapers
Operational
Direct Tax
Operational
AMERS (web) BEPS Action Manager
Operational
AMERS DAC6 Reporter
Operational
AMERS Data Query
Operational
AMERS GoSystem Tax RS
Operational
AMERS GoSystem Tax RS API
Operational
AMERS Income Tax
Operational
AMERS Income Tax API
Operational
AMERS State Apportionment
Operational
AMERS (legacy) Statutory Reporting
Operational
AMERS (web) Statutory Reporting
Operational
AMERS (New) Tax Provision
Operational
AMERS Tax Provision
Operational
AMERS Uncertain Tax Positions
Operational
APAC (legacy) Corporate Tax
Operational
APAC (web) Corporate Tax
Operational
APAC (web) E-filing Manager (Corporate Tax)
Operational
APAC (web) Fringe Benefits Tax
Operational
APAC (legacy) Statutory Reporting
Operational
APAC (web) Statutory Reporting
Operational
APAC Tax Provision
Operational
APAC Trusts (AU)
Operational
APAC Uncertain Tax Positions
Operational
EMEA (web) BEPS Action Manager
Operational
EMEA (legacy) Corporate Tax
Operational
EMEA (web) Corporate Tax
Operational
EMEA (web) E-filing Manager (Corporate Tax)
Operational
EMEA DAC6 Reporter
Operational
EMEA (legacy) Statutory Reporting
Operational
EMEA (web) Statutory Reporting
Operational
EMEA Tax Provision
Operational
EMEA Uncertain Tax Positions
Operational
Global Trade
Operational
Global Trade Content
Operational
Global Trade - LATAM
Operational
Global Trade - pwd by Integration Point
Operational
Govt Connectivity BE - PLDA
Operational
Govt Connectivity DE - ATLAS
Operational
Govt Connectivity FR - DELTA
Operational
Govt Connectivity MX - SAAI/COVE
Operational
Govt Connectivity NL - AGS
Operational
Govt Connectivity UK - CHIEF/CDS
Operational
Govt Connectivity US - ABI/AES
Operational
GTM Platform
Operational
Implementation Environment
Operational
ONESOURCE Classifier
Operational
Transports AS2
Operational
Transports Client Interchange Web Service
Operational
Transports FTP
Operational
Indirect Tax
Operational
ONESOURCE Determination Enterprise Cloud (AWS AMER)
Operational
ONESOURCE Determination Enterprise Cloud (AWS EMEA)
Operational
ONESOURCE Determination Enterprise Cloud (OCI AMER)
Operational
ONESOURCE Determination Anywhere (AWS AMER)
Operational
ONESOURCE Determination Anywhere (OCI AMER)
Operational
Configuration API (AWS AMER)
Operational
Configuration API (AWS EMEA)
Operational
Configuration API (OCI AMER)
Operational
ONESOURCE Determination Original Cloud (AMER)
Operational
ONESOURCE Determination Original Dedicated Cloud (AMER)
Operational
ONESOURCE Determination Original Dedicated Cloud (EMEA)
Operational
Certificate Manager Original Cloud
Operational
Certificate Manager Enterprise Cloud
Operational
Reports and Analytics Enterprise Cloud
Operational
Reporting - Original Cloud
Operational
US Tax Content
Operational
Canada Tax Content
Operational
International Tax Content
Operational
Content Extract
Operational
Fast Sales Tax
Operational
ONESOURCE Property Tax
Operational
ONESOURCE Sales and Use Tax Compliance (AMER)
Operational
ONESOURCE Indirect Compliance (APAC)
Operational
APAC (web) E-filing Manager (Indirect Compliance)
Operational
ONESOURCE Indirect Compliance (EMEA)
Operational
EMEA (web) E-filing Manager (Indirect Compliance)
Operational
ONESOURCE Indirect Compliance (UAT)
Operational
ONESOURCE E-Invoicing (PROD)
Operational
ONESOURCE E-Invoicing (UAT)
Operational
ONESOURCE Determination - On Premise
Operational
ONESOURCE Determination (APAC)
Operational
IDT Integrations
Operational
Address Validation Service
Operational
BigCommerce
Operational
Coupa
Operational
Data File Integrator - Enterprise Cloud
Operational
Data File Integrator - Original Cloud
Operational
Microsoft Dynamics 365 - Commerce Cloud
Operational
Microsoft Dynamics 365FOE
Operational
Microsoft Dynamics AX 2012
Operational
Microsoft Dynamics GP
Operational
NetSuite Legacy/Direct
Operational
NetSuite SuiteTax
Operational
Oracle EBS R12
Operational
Oracle Fusion Tax Cloud - 1.x
Operational
Oracle Fusion Tax Cloud - 2.x
Operational
Salesforce Subscription Management
Operational
SAP 5.2B Basic (RFC)
Operational
SAP Ariba - Cloud
Operational
SAP Ariba - OnPremise
Operational
SAP Ariba - Original cloud
Operational
SAP Business One
Operational
SAP C4/HANA Commerce Cloud
Operational
SAP Global Next
Operational
SAP Global Tax Service
Operational
SAP US Tax S4/HANA Cloud
Operational
Trust & Info Rptg
Operational
AMERS NRA - FNIS & Users Website
Operational
AMERS Tax Information Reporting
Operational
AMERS Trust Tax
Operational
AMERS Trust Tax Insight
Operational
Risk Solutions
Operational
AMERS Compliance Learning
Operational
AMERS Oden Online (State Rules and Regulations)
Operational
AMERS Oden Policy Terminator
Operational
AMERS Oden Track (web)
Operational
AMERS Regulatory Intelligence
Operational
ANZ Compliance Learning
Operational
APAC Compliance Learning
Operational
APAC Regulatory Intelligence
Operational
EMEA Compliance Learning
Operational
EMEA Regulatory Intelligence
Operational
Tax Brazil
Operational
Checkpoint Corporate
Operational
ONESOURCE DFe
Operational
ONESOURCE Tax Analyser
Operational
Tax One for SAP® solutions
Operational
Tax Brazil - Tax One
Operational
Tax One - Application [AMERS]
Operational
Tax One - Application [UAT AMERS]
Operational
Sending and Receiving Files [AMERS]
Operational
Sending and Receiving Files [UAT AMERS]
Operational
File/Email Processing [AMERS]
Operational
File/Email Processing [UAT AMERS]
Operational
ECF/REINF (messaging/integration) [AMERS]
Operational
ECF/REINF (messaging/integration) [UAT AMERS]
Operational
Tax Automation [AMERS]
Operational
Tax Automation [UAT AMERS]
Operational
OBI [AMERS]
Operational
OBI [UAT AMERS]
Operational
Tax One - Application [EMEA]
Operational
Tax One - Application [UAT EMEA]
Operational
Sending and Receiving Files [EMEA]
Operational
Sending and Receiving Files [UAT EMEA]
Operational
File/Email Processing [EMEA]
Operational
File/Email Processing [UAT EMEA]
Operational
ECF/REINF (messaging/integration) [EMEA]
Operational
ECF/REINF (messaging/integration) [UAT EMEA]
Operational
Tax Automation [EMEA]
Operational
Tax Automation [UAT EMEA]
Operational
OBI [EMEA]
Operational
OBI [UAT EMEA]
Operational
Customer Support
Operational
Case Management Dashboard
Operational
Platform
Operational
Workflow Tools
Operational
Data Tools
Operational
Direct Tax
Operational
Global Trade
Operational
Indirect Tax
Operational
Trust & Info Rptg
Operational
Legal Solutions
Operational
Risk Solutions
Operational
Tax Brazil
Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Scheduled Maintenance
ONESOURCE Oracle Fusion Rate to Regime Content release for BRAZIL JANUARY 2026 Jan 22, 2026 12:30 - Jan 23, 2026 12:30 CST
ONESOURCE Oracle Fusion Rate to Regime Content release Content for BRAZIL region for JANUARY 2026 has been released. It is available in both Integration UI and customer portal for download.
Posted on Jan 22, 2026 - 05:01 CST
Posted on Jan 22, 2026 - 05:01 CST
ONESOURCE Determination Enterprise Cloud– Version 2026.01 Release Information (PROD EMEA environment) Jan 28, 2026 03:00-07:00 CST
Scheduled -
ONESOURCE Determination Enterprise Cloud– Version 2026.01 is being deployed in the PROD EMEA environment on January 28, 2026. Your access to the tax calculation services and the application will not be interrupted.
Jan 05, 2026 - 09:43 CST
Jan 05, 2026 - 09:43 CST
UAT - ONESOURCE Platform Security Maintenance Application server patching in February 2026. Feb 4, 2026 00:00-04:00 CST
ONESOURCE Platform will be undergoing maintenance in UAT on Wednesday, Feb 04, 00:00 AM - 4:00 AM CST.
Users may experience degraded performance from 00:00 AM CST to 00:30 AM CST and 02:00 AM to 02:30 AM CST only.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:42 CST
Users may experience degraded performance from 00:00 AM CST to 00:30 AM CST and 02:00 AM to 02:30 AM CST only.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:42 CST
ONESOURCE Determination Enterprise Cloud– Version 2026.01 Release Information (PROD AMER environment) Feb 4, 2026 03:00-09:00 CST
ONESOURCE Determination Enterprise Cloud– Version 2026.01 is being deployed in the PROD AMER environment on February 04, 2026. Your access to the tax calculation services and the application will not be interrupted.
Posted on Jan 05, 2026 - 09:45 CST
Posted on Jan 05, 2026 - 09:45 CST
ONESOURCE Determination Anywhere – Version 2026.01 Release Information (PROD environment) Feb 4, 2026 05:00-11:00 CST
ONESOURCE Determination Anywhere – Version 2026.01 is being deployed in the PROD environment on February 04, 2026. Your access to the tax calculation services and the application will not be interrupted.
Posted on Jan 05, 2026 - 09:53 CST
Posted on Jan 05, 2026 - 09:53 CST
APAC - ONESOURCE Platform Security Maintenance Application server patching for February 2026 . Feb 5, 2026 07:00-11:00 CST
ONESOURCE Platform will be undergoing maintenance in APAC on Thursday, Feb 05, 07:00 AM - 11:00 AM CST.
Users may experience degraded performance from 07:00 AM CST to 07:30 AM CST and 9:00 AM to 09:30 AM CST only.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:43 CST
Users may experience degraded performance from 07:00 AM CST to 07:30 AM CST and 9:00 AM to 09:30 AM CST only.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:43 CST
EMEA - ONESOURCE Platform Security Maintenance Application server patching February 2026. Feb 5, 2026 18:00-22:00 CST
ONESOURCE Platform will be undergoing maintenance in EMEA on Thursday, Feb 05, 06:00 PM - 10:00 PM CST
Users may experience degraded performance from 6:00 PM CST to 6:30 PM CST and 8:00 PM CST to 8:30 PM CST only.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:43 CST
Users may experience degraded performance from 6:00 PM CST to 6:30 PM CST and 8:00 PM CST to 8:30 PM CST only.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:43 CST
UAT - ONESOURCE Platform Security Maintenance Database server patching for February 2026. Feb 7, 2026 00:30-07:30 CST
ONESOURCE Platform will be undergoing maintenance in UAT on Saturday Feb 07, 00:30 AM - 07:30 AM CST.
ONESOURCE Platform will be unavailable from Saturday Feb 07, 4:00 AM CST to 4:15 AM CST.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:45 CST
ONESOURCE Platform will be unavailable from Saturday Feb 07, 4:00 AM CST to 4:15 AM CST.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:45 CST
APAC - ONESOURCE Platform Security Maintenance Database server patching for February 2026. Feb 7, 2026 06:00-14:00 CST
ONESOURCE Platform will be undergoing maintenance in APAC on Saturday Feb 07, 06:00 AM - 02:00 PM CST.
ONESOURCE Platform will be unavailable from Saturday Feb 07, 10:00 AM CST to 10:15 AM CST.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:46 CST
ONESOURCE Platform will be unavailable from Saturday Feb 07, 10:00 AM CST to 10:15 AM CST.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:46 CST
EMEA - ONESOURCE Platform Security Maintenance Database server patching for February 2026. Feb 7, 2026 18:00 - Feb 8, 2026 02:00 CST
ONESOURCE Platform will be undergoing maintenance in EMEA on Saturday Feb 07, 06:00 PM – Sunday Feb 08, 02:00 AM CST.
ONESOURCE Platform will be unavailable from Saturday Feb 07, 10:00 PM CST to 10:15 PM CST.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:46 CST
ONESOURCE Platform will be unavailable from Saturday Feb 07, 10:00 PM CST to 10:15 PM CST.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:46 CST
AMER - ONESOURCE Platform Security Maintenance Database server patching for February 2026. Feb 7, 2026 23:30 - Feb 8, 2026 07:30 CST
ONESOURCE Platform will be undergoing maintenance in AMER on Saturday Feb 07, 11:30 PM – Sunday Feb 08, 07:30 AM CST.
ONESOURCE Platform will be unavailable from Sunday Feb 08, 4:00 AM CST to 4:20 AM CST.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:47 CST
ONESOURCE Platform will be unavailable from Sunday Feb 08, 4:00 AM CST to 4:20 AM CST.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:47 CST
ONESOURCE GTM – AWS Maintenance Feb 8, 2026 00:00-17:00 CST
Thomson Reuters will be performing scheduled maintenance on Sunday, February 8th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, February 8th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Jan 20, 2026 - 13:11 CST
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Jan 20, 2026 - 13:11 CST
AMER - ONESOURCE Platform Security Maintenance Application server patching for February 2026. Feb 9, 2026 00:00-04:00 CST
ONESOURCE Platform will be undergoing maintenance in AMER on Monday, Feb 09, 00:00 AM - 4:00 AM CST.
Users may experience degraded performance from 00:00 AM CST to 00:30 AM CST and 02:00 AM CST to 02:30 AM CST only.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:44 CST
Users may experience degraded performance from 00:00 AM CST to 00:30 AM CST and 02:00 AM CST to 02:30 AM CST only.
In case of any issues, we recommend the users to please retry.
We appreciate your patience and understanding. If you have any urgent inquiries or require assistance during this maintenance period, please contact our support team. Thank you for your cooperation.
Posted on Jan 14, 2026 - 04:44 CST
ONESOURCE Tax Information Release OTIR Release 25.07 17th February 2026 (AMERS) Feb 17, 2026 19:00 - Feb 18, 2026 06:00 CST
ONESOURCE Tax Information Reporting Release 25.07 will be installed from 7:00 P.M. (CT) on 17th February 2026 until 06:00 A.M. (CT) on 18th February 2026. System availability and API's may be affected during release time.
Posted on Jan 21, 2025 - 04:31 CST
Posted on Jan 21, 2025 - 04:31 CST
ONESOURCE GTM – AWS Maintenance Feb 22, 2026 00:00-17:00 CST
Thomson Reuters will be performing scheduled maintenance on Sunday, February 22nd, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, February 22nd, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Jan 20, 2026 - 13:11 CST
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Jan 20, 2026 - 13:11 CST
ONESOURCE GTM – AWS Maintenance Mar 8, 2026 00:00-18:00 CDT
Thomson Reuters will be performing scheduled maintenance on Sunday, March 8th, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, March 8th, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Jan 20, 2026 - 13:11 CST
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Jan 20, 2026 - 13:11 CST
ONESOURCE Tax Information Reporting System Maintenance 21st March 2026 (AMERS) Mar 21, 2026 22:00 - Mar 22, 2026 07:00 CDT
ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 21st March 2026 until 07:00 A.M. (CT) on 22nd March 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:21 CST
Posted on Nov 20, 2025 - 05:21 CST
ONESOURCE GTM – AWS Maintenance Mar 22, 2026 00:00-17:00 CDT
Thomson Reuters will be performing scheduled maintenance on Sunday, March 22nd, 2026 beginning at 1 AM Eastern time and will conclude by Sunday, March 22nd, 2026 at 6 PM Eastern time.
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Jan 20, 2026 - 13:11 CST
The maintenance will include updates and patches to implementation and production environments. During this maintenance there will be intermittent downtime, and you will not be able to access implementation and production instances.
If you have any questions or concerns, please contact Customer Support.
Posted on Jan 20, 2026 - 13:11 CST
ONESOURCE Tax Information Release OTIR Release 26.01 21st April 2026 (AMERS) Apr 21, 2026 19:00 - Apr 22, 2026 06:00 CDT
ONESOURCE Tax Information Reporting Release 26.01 will be installed from 7:00 P.M. (CT) on 21st April 2026 until 06:00 A.M. (CT) on 22nd April 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:23 CST
Posted on Nov 20, 2025 - 05:23 CST
ONESOURCE Tax Information Reporting System Maintenance 25th April 2026 (AMERS) Apr 25, 2026 22:00 - Apr 26, 2026 07:00 CDT
ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 25th April until 07:00 A.M. (CT) on 26th April for scheduled maintenance.
Posted on Nov 20, 2025 - 05:24 CST
Posted on Nov 20, 2025 - 05:24 CST
ONESOURCE Tax Information Reporting System Maintenance 23rd May 2026 (AMERS) May 23, 2026 22:00 - May 24, 2026 07:00 CDT
ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 23rd May 2026 until 07:00 A.M. (CT) on 24th May 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:25 CST
Posted on Nov 20, 2025 - 05:25 CST
ONESOURCE Tax Information Release OTIR Release 26.02 16th June 2026 (AMERS) Jun 16, 2026 19:00 - Jun 17, 2026 06:00 CDT
ONESOURCE Tax Information Reporting Release 26.02 will be installed from 7:00 P.M. (CT) on 16th June 2026 until 06:00 A.M. (CT) on 17th June 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:26 CST
Posted on Nov 20, 2025 - 05:26 CST
ONESOURCE Tax Information Reporting System Maintenance 27th June 2026 (AMERS) Jun 27, 2026 22:00 - Jun 28, 2026 07:00 CDT
ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 27th June 2026 until 07:00 A.M. (CT) on 28th June 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:46 CST
Posted on Nov 20, 2025 - 05:46 CST
ONESOURCE Tax Information Reporting System Maintenance 25th July 2026 (AMERS) Jul 25, 2026 22:00 - Jul 26, 2026 07:00 CDT
ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 25th July 2026 until 07:00 A.M. (CT) on 26th July 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:32 CST
Posted on Nov 20, 2025 - 05:32 CST
ONESOURCE Tax Information Release OTIR Release 26.03 11th August 2026 (AMERS) Aug 11, 2026 19:00 - Aug 12, 2026 06:00 CDT
ONESOURCE Tax Information Reporting Release 26.03 will be installed from 7:00 P.M. (CT) on 11th August 2026 until 06:00 A.M. (CT) on 12th August 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:33 CST
Posted on Nov 20, 2025 - 05:33 CST
ONESOURCE Tax Information Reporting System Maintenance 22nd August 2026 (AMERS) Aug 22, 2026 22:00 - Aug 23, 2026 07:00 CDT
ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 22nd August 2026 until 07:00 A.M. (CT) on 23rd August 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:34 CST
Posted on Nov 20, 2025 - 05:34 CST
ONESOURCE Tax Information Release OTIR Release 26.04 20th October 2026 (AMERS) Oct 20, 2026 19:00 - Oct 21, 2026 06:00 CDT
ONESOURCE Tax Information Reporting Release 26.04 will be installed from 7:00 P.M. (CT) on 20th October 2026 until 06:00 A.M. (CT) on 21st October 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:35 CST
Posted on Nov 20, 2025 - 05:35 CST
ONESOURCE Tax Information Reporting System Maintenance 24th October 2026 (AMERS) Oct 24, 2026 22:00 - Oct 25, 2026 07:00 CDT
ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 24th October 2026 until 07:00 A.M. (CT) on 25th October 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:36 CST
Posted on Nov 20, 2025 - 05:36 CST
ONESOURCE Tax Information Reporting System Maintenance 21st November 2026 (AMERS) Nov 21, 2026 22:00 - Nov 22, 2026 07:00 CST
ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 21st November 2026 until 07:00 A.M. (CT) on 22nd November 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:37 CST
Posted on Nov 20, 2025 - 05:37 CST
ONESOURCE Tax Information Release OTIR Release 26.05 1st December 2026 (AMERS) Dec 1, 2026 19:00 - Dec 2, 2026 06:00 CST
ONESOURCE Tax Information Reporting Release 26.05 will be installed from 7:00 P.M. (CT) on 1st December 2026 until 06:00 A.M. (CT) on 2nd December 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:38 CST
Posted on Nov 20, 2025 - 05:38 CST
ONESOURCE Tax Information Release OTIR Release 26.06 22nd December 2026 (AMERS) Dec 22, 2026 19:00 - Dec 23, 2026 06:00 CST
ONESOURCE Tax Information Reporting Release 26.06 will be installed from 7:00 P.M. (CT) on 22nd December 2026 until 06:00 A.M. (CT) on 23rd December 2026. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:38 CST
Posted on Nov 20, 2025 - 05:38 CST
ONESOURCE Tax Information Reporting System Maintenance 26th December 2026 (AMERS) Dec 26, 2026 22:00 - Dec 27, 2026 07:00 CST
ONESOURCE Tax Information Reporting and API's will be unavailable from 10:00 P.M. (CT) on 26th December 2026 until 07:00 A.M. (CT) on 27th December 2026 for scheduled maintenance.
Posted on Nov 20, 2025 - 05:39 CST
Posted on Nov 20, 2025 - 05:39 CST
ONESOURCE Tax Information Release OTIR Release 26.07 16th February 2027 (AMERS) Feb 16, 2027 19:00 - Feb 17, 2027 06:00 CST
ONESOURCE Tax Information Reporting Release 26.07 will be installed from 7:00 P.M. (CT) on 16th February 2027 until 06:00 A.M. (CT) on 17th February 2027. System availability and API's may be affected during release time.
Posted on Nov 20, 2025 - 05:48 CST
Posted on Nov 20, 2025 - 05:48 CST