Tax Coda Weekly Digest — March 15, 2026
This week revolved around boundaries. Courts rejected conspiracy claims, questioned the government's disclosures of taxpayer data, and upheld a major IRS reporting rule targeting microcaptive insurance structures. Corporate tax transparency continued to expand through 10-K filings. At the same time, the IRS rolled out a new schedule to implement recently enacted deductions.
Court dismisses Schiff lawsuit alleging IRS tax enforcement conspiracy
A federal district Court dismissed a lawsuit brought by Peter Schiff alleging that the IRS and other agencies conspired to destroy his bank through coordinated tax enforcement actions. The Court found the complaint lacked sufficient factual support and failed to establish a legal basis for the claims.
Why It Matters:
Reinforces the high threshold for conspiracy claims against federal agencies.
Confirms courts require concrete factual allegations rather than speculative assertions.
Limits litigation strategies that aim to challenge enforcement actions indirectly.
Takeaway:
Claims of coordinated tax enforcement require evidence, not inference.
Court flags IRS disclosure of taxpayer addresses to ICE as unlawful
Center for Taxpayer Rights v. IRS
A federal Court found that the IRS likely violated §6103 by sharing certain taxpayer address information with Immigration and Customs Enforcement. The opinion emphasized that taxpayer confidentiality rules strictly limit disclosures unless a clear statutory exception applies.
Why It Matters:
Tests the boundaries of interagency data sharing.
Reinforces the central role of §6103 in protecting taxpayer information.
Signals potential litigation risk for similar disclosures.
Takeaway:
Taxpayer data sharing across agencies remains tightly constrained.
Court upholds IRS microcaptive reporting rule
A federal district Court upheld the IRS rule requiring the reporting of certain microcaptive insurance transactions. The Court rejected challenges arguing that the rule exceeded the IRS's authority and confirmed that the reporting requirements remain enforceable.
Why It Matters:
Sustains a key enforcement tool targeting microcaptive arrangements.
Reinforces the IRS’s ability to require disclosure of potentially abusive transactions.
Signals continued scrutiny of captive insurance structures.
Takeaway:
Microcaptive reporting requirements remain firmly in place.
Block paid $35 million in federal income tax on $1.69 billion of net income
Block’s 2025 Form 10-K reports $35 million in U.S. federal income tax paid on $1.69 billion of net income. The company disclosed $129.4 million in total cash income taxes paid globally, reflecting the new jurisdictional transparency requirements for corporate filings.
Why It Matters:
Highlights the gap between reported profits and federal cash taxes.
Adds to the growing dataset of jurisdictional tax disclosures.
Enables comparisons across large technology companies.
Takeaway:
Corporate tax transparency is shifting toward cash payments rather than just accounting expenses.
IRS introduces Schedule 1-A to claim deductions for tips and overtime
The IRS introduced Schedule 1-A for tax year 2025 to implement new deductions created by the “One Big Beautiful Bill.” The schedule allows taxpayers to claim deductions related to qualified tips, overtime compensation, and certain other income adjustments.
Why It Matters:
Adds a new reporting layer for individual taxpayers.
Implements recently enacted deductions in the Form 1040 system.
Signals continued complexity in individual income reporting.
Takeaway:
New deductions often arrive with new forms.
Overall Takeaway
The week showed how enforcement authority and taxpayer protections move together. Courts upheld disclosure rules and reporting requirements while questioning the government's handling of confidential data. Meanwhile, the IRS continued translating new legislation into operational forms.