Thomson Reuters Outage History

We experienced outage in Loading the ONESOURCE Tax page - AMER, EMEA and OCI UAT environments starting 2:13 AM CT on May 18th. The issue is already mitigated. We apologize for any inconvenience and appreciate your understanding and patience. Further details will be provided in the formal RCA. If you have any questions, please contact Customer Support.

We are currently experiencing a performance issue with the Print PDF feature with the GoSystem Tax (GST), ONESOURCE Income Tax (OIT), and ONESOURCE Sales and Use Tax Compliance services. Our team is actively working to resolve this matter as quickly as possible. We apologize for any inconvenience and appreciate your understanding and patience. Further updates will be provided here as soon as we have more information, if you have any questions please contact Customer Support.

Slow Performance: We are currently experiencing a performance issue with the Roll Forward, Batch Recalc feature with our Roll Forward, Batch Recalc service.

We are currently experiencing an issue with our Reporting Entities service, which is temporarily unavailable. Our team is actively working to resolve this matter as quickly as possible. We apologize for any inconvenience and appreciate your understanding and patience. Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.

Dear Customers, We wanted to inform you that we are observing disruptions while accessing IDT User Interface [ UI] in UAT environment. Technical teams are currently working on it with high priority to restore the services. More details to follow soon. Thank you for your understanding and patience

ONESOURCE GTM is currently experiencing an issue with the ZONE-TO-ZONE feature with our FOREIGN TRADE ZONE service, which is temporarily unavailable. Our team is actively working to resolve this matter as quickly as possible. We apologize for any inconvenience and appreciate your understanding and patience. Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.

Our team has identified the issue and are working on a Software development fix. The Software development changes are being implemented at this time and will be expedited through validation and deployment to Production. We will share another update when the deployment to Production starts. We apologize for any inconvenience and appreciate your understanding and patience. If you have any questions, please contact Customer Support.

Our team has identified the issue and are working on a Software development fix. The Software development changes are being implemented at this time and will be expedited through validation and deployment to Production. We will share another update when the deployment to Production starts. We apologize for any inconvenience and appreciate your understanding and patience. If you have any questions, please contact Customer Support.

Our team will be initiating the deployment of software changes to address the identified issue starting at 4:30 AM EST. During this time, customers may experience temporary degraded performance while accessing the website and executing backend tasks. We apologize for any inconvenience and appreciate your understanding and patience. Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.

Intermittent Issues: We are currently experiencing intermittent issues with the Account Tracking and Shipment ODATA (GET) feature with our ONESOURCE Trust Tax Services service.

Instabilidade momentânea no ambiente PROD01, especificamente na fila de importações e na mensageria ECF/REINF. Nossa equipe técnica já está atuando na análise e correção do problema. Para viabilizar a atuação emergencial, os serviços afetados foram temporariamente interrompidos. A previsão estimada para normalização é de aproximadamente 1 hora. Para identificação do ambiente acesse.

Identificamos, durante a manhã, uma instabilidade momentânea no ambiente PROD01, especificamente na fila de importações e na mensageria ECF/REINF. No que se refere à mensageria ECF/REINF, informamos que o cenário já se encontra normalizado. Em relação à fila de importações, seguimos em análise, ainda com registro de instabilidade. Nossa equipe técnica permanece atuando na análise e correção do problema. Como medida emergencial, os serviços afetados foram temporariamente interrompidos. Seguimos em avaliação e, neste momento, ainda não há previsão para normalização. Para identificação do ambiente acesse

We are currently experiencing an issue with the processing feature with our Trust Tax service, which is temporarily unavailable.

Reports and Analytics Service in AMER UAT is currently experiencing delay of around 6 hours. We are working on the data catch up. Will notify once complete.

We are continuing to investigate this issue.

Thomson Reuters is investigating an issue where clients are not able to login to the application. We are actively working to get access restored.

We are currently experiencing intermittent issues with Launching of Tax Provision for few clients with our Tax Provision service.

We are currently experiencing an issue with our [insert service name details] service, which is temporarily unavailable.

We are continuing to investigate this issue.

Identificamos uma instabilidade momentânea na funcionalidade de equalização do DataMart, que pode ocasionar a interrupção de alguns processamentos.

We're aware and investigating an error being seen when accessing the Transactions > Import Details area of "An unexpected error occured" with high priority.

Dear Customers, We wanted to inform you that Certificate Manager service temporarily unavailable In OCI production environment. Technical teams are currently working on it with high priority, more details to follow soon. Thank you for your understanding and patience .

We are currently experiencing intermittent issues with the Reporting Entity Creation feature with our BDS service due to ongoing AWS Outage in AMERS Region. Our team is actively working to resolve this matter as quickly as possible. We apologize for any inconvenience and appreciate your understanding and patience. Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support.

We are currently experiencing an issue with the Tax calculation API feature with our Onesource Indirect Tax Enterprise service, which is temporarily unavailable.

We want to keep you informed: as of May 07, 2026 at 19:33 CST, customers may be experiencing a complete outage with the Tax Calculation API feature in our OneSource Indirect Tax Enterprise service. The affected regions include UAT AMER, EMEA, and OCI. The good news is that our team has already identified the root cause and is actively working to restore full service as quickly as possible. We truly appreciate your patience and understanding during this time. Please continue to monitor this page for live updates, and we will keep you informed every step of the way.

We are currently experiencing an issue that is affecting some customers' ability to log in to the application. Our team is actively working to resolve this matter as quickly as possible. We apologize for any inconvenience and appreciate your understanding and patience. Further updates will be provided here as soon as we have more information. If you have any questions, please contact Customer Support