Internal Revenue Service

Source Id

586

Although Enterprise Case Management Modernization Has Begun, No Legacy Systems Have Been Decommissioned

09/11/2025

2025

2025-208-050

Audit

Treasury Inspector General for Tax Administration

Internal Revenue Service

Read more about Although Enterprise Case Management Modernization Has Begun, No Legacy Systems Have Been Decommissioned

Fiscal Year 2025 Statutory Review of Compliance With Legal Guidelines When Issuing Levies

09/04/2025

2025

2025-300-042

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Treasury Inspector General for Tax Administration

Internal Revenue Service

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The Infrastructure Supporting the Big Data Analytics Platform Has Overdue and Unresolved System Vulnerabilities

09/02/2025

2025

2025-200-038

Audit

Treasury Inspector General for Tax Administration

Internal Revenue Service

Read more about The Infrastructure Supporting the Big Data Analytics Platform Has Overdue and Unresolved System Vulnerabilities

Most Employers Paid Their Deferred Social Security Taxes But Some Penalties Were Incorrect

08/27/2025

2025

2025-406-049

Audit

Treasury Inspector General for Tax Administration

Internal Revenue Service

Read more about Most Employers Paid Their Deferred Social Security Taxes But Some Penalties Were Incorrect

Fiscal Year 2025 Statutory Review of Compliance With Notice of Federal Tax Lien Filing Collection Due Process Procedures

08/19/2025

2025

2025-300-034

Audit

Treasury Inspector General for Tax Administration

Internal Revenue Service

Read more about Fiscal Year 2025 Statutory Review of Compliance With Notice of Federal Tax Lien Filing Collection Due Process Procedures

IRS Terminated Probationary Employees Without Following Internal Procedures and Considering Individual Performance

08/14/2025

2025

2025-IE-R028

Inspection / Evaluation

Treasury Inspector General for Tax Administration

Internal Revenue Service

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Telephone Level of Service and Average Wait Times Do Not Fully Reflect the Taxpayer Experience

08/14/2025

2025

2025-100-040

Audit

Treasury Inspector General for Tax Administration

Internal Revenue Service

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Progress of Information Technology Modernization Efforts for Calendar Year 2024

08/13/2025

2025

2025-2S8-041

Audit

Treasury Inspector General for Tax Administration

Internal Revenue Service

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Authenticating Callers’ Identity on Business and Practitioner Telephone Lines Needs to Be Strengthened to Combat Fraud

08/12/2025

2025

2025-IE-R025

Inspection / Evaluation

Treasury Inspector General for Tax Administration

Internal Revenue Service

Read more about Authenticating Callers’ Identity on Business and Practitioner Telephone Lines Needs to Be Strengthened to Combat Fraud

Inflation Reduction Act: IRS Spending on Technology Transformation Efforts

08/11/2025

2025

2025-IE-R029

Inspection / Evaluation

Treasury Inspector General for Tax Administration

Internal Revenue Service

Read more about Inflation Reduction Act: IRS Spending on Technology Transformation Efforts

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