This bill provides substantial additional appropriations to the Internal Revenue Service (IRS) for fiscal years 2026 through 2031. The funding is primarily directed towards four key areas: tax enforcement activities , improved taxpayer services , overhauling technology and operations support , and modernizing business systems . These appropriations aim to significantly enhance the IRS's capacity to fulfill its mission by providing billions of dollars annually for these purposes. A major focus of the enforcement funding is to shift auditing and enforcement assets towards high-income individuals and large corporations , with the goal of increasing voluntary compliance and collecting owed taxes. The bill mandates the Commissioner of Internal Revenue to submit regular reports to Congress detailing a plan to achieve these objectives, including recruiting skilled auditors and analyzing tax gap attribution. Additionally, the Treasury Inspector General for Tax Administration will evaluate the IRS's progress in implementing this plan, ensuring accountability and effectiveness in tax collection.