As the IRS enters the final phase of its FY 2026 Budget and Strategic Plan, significant attention has turned to the agency’s technology modernization efforts, organizational transformation, and potential resource constraints heading into Fiscal Year 2026.
Following the appointment of Commissioner Billy Long in June 2025, practitioners have sought clarity on whether the IRS will sustain its long-standing commitment to modernizing core taxpayer service systems, including the decades-old Integrated Data Retrieval System (IDRS). [IRS Strategic Operating Plan and IDRS modernization overview (irs.gov)]
Why Modernizing IDRS Remains a Priority in 2026
The Integrated Data Retrieval System (IDRS) serves as the IRS’s core computer platform, giving employees access to and control over taxpayer account data.
Developed in the early 1970s using now-obsolete programming and mainframe technology, IDRS has become increasingly expensive and difficult to maintain.
Over the decades, its aging architecture has failed to keep pace with evolving tax laws, digital filing processes, and analytical capabilities. It simply isn’t designed for cloud-based or distributed environments, which severely limits its scalability, adaptability, and performance today.
Although it integrates multiple IRS data sources, some data remain fragmented or exist in separate legacy subsystems.
This can lead to inconsistencies, delays, and errors when IRS employees try to get a full picture of a taxpayer’s account.
IDRS was not designed to support the increasing volume of electronic filings, online taxpayer interactions, or real-time data exchange.
While IDRS remains critical to IRS functions today, its obsolete technology and architecture are major barriers to efficiency, security, and modernization.
That’s why the IRS has prioritized replacing or modernizing IDRS as part of a broader digital transformation effort.
Key Budget, IT, and Staffing Changes to Watch
FY 2026 Budget Proposal
- The IRS submitted a FY 2026 budget request of $9.8 billion, reflecting a ~20% reduction from the prior year.
- The proposal includes a rescission of $16.5 billion in unobligated Inflation Reduction Act (IRA) funding.
- The request emphasizes continued support for digital service transformation and enforcement, albeit with narrowed budgetary flexibility. [IRS FY 2026 Budget in Brief (home.treasury.gov)]
IT Modernization: ETAAC Recommendations Endorsed
- In June 2025, the Electronic Tax Administration Advisory Committee (ETAAC) issued its annual report, recommending expanded digital services, a single-entry taxpayer portal, and enhanced security protocols.
- Commissioner Long publicly endorsed ETAAC’s vision, stating that “increasing digital transactions is one of the Internal Revenue Service’s key goals.”
- This endorsement reaffirms continuity with former Commissioner Werfel’s roadmap, particularly regarding digitizing legacy systems and creating a more seamless taxpayer experience. [ETAAC 2025 Annual Report & Commissioner Long endorsement].
Staffing & Funding Pressures
According to the National Taxpayer Advocate, modernization momentum may slow due to expiring Business Systems Modernization (BSM) funding and projected staffing declines:
- IT staffing: ↓ ~27%
- Taxpayer Services: ↓ ~22%
Concerns persist that these reductions could affect progress on real-time account resolution systems and paperless processing initiatives. [National Taxpayer Advocate FY 2026 Objectives Report (taxpayeradvocate.irs.gov)]
What This Means for Taxpayers and Practitioners
- Ongoing digital transformation will continue, but likely at a slower pace without renewed or reprogrammed BSM funding in FY 2026.
- Taxpayer service tools (e.g., secure messaging, e-Form 2848) are expected to expand gradually, though full implementation of a single-entry portal may extend beyond FY 2026.
- Enforcement and compliance technologies remain a top priority, especially those utilizing data analytics to improve case selection and fraud detection.
- Practitioners should anticipate mixed service experiences during the 2026 filing season due to workforce fluctuations and ongoing transition to modernized systems. [IRS modernization and taxpayer service plans (irs.gov)]
Looking Ahead
Commissioner Long has yet to release a formal modernization blueprint.
However, his public support for ETAAC’s digital-first roadmap suggests alignment with former leadership priorities.
Further details are expected once the IRS updates its Strategic Operating Plan. These updates may offer greater clarity on deliverables post-FY 2026.
We will continue to monitor and report on the IRS’s operational priorities, particularly those affecting:
- Controversy resolution
- Taxpayer service platforms
- Digital correspondence capabilities
As digital transformation efforts evolve, proactive planning is essential.
Connect with a Leyton expert to learn how modernization trends may impact your filing strategy or advisory services!
