Practice Area Spotlight

Tax

Tax lawyers use Midpage to research federal and state tax disputes — from audit and administrative appeal through litigation and collection. The statutes, IRS guidance, and case law behind that work are collected below.

How Tax Lawyers Use Midpage

Browse to see how Midpage works through tax controversy questions from real lawyers.

Core Tax Collections

The statutes, agency guidance, and courts behind tax practice.

Statutes

The provisions of the Internal Revenue Code that structure deficiency, collection, refund, and penalty litigation — plus the Title 31 FBAR statutes and the Title 28 refund-jurisdiction grant.

Deficiency procedures
Notices of deficiency and the 90-day Tax Court petition window, with restrictions on assessment
26 U.S.C. §§ 6212–6213
Limitations on assessment
The 3-year baseline, the 6-year substantial-omission rule, and the unlimited fraud exception
26 U.S.C. § 6501
Partnership audit regime (BBA)
Centralized partnership-level determinations, imputed underpayments, and push-out elections
26 U.S.C. §§ 6221–6241

Regulations

Treasury’s practice rules and Treasury/IRS rulemakings as published in the Federal Register — the codified 26 CFR collections are on the way.

Income tax regulationsComing soon
The substantive income tax regulations under subtitle A
26 CFR Part 1
Procedure & administrationComing soon
Assessment, collection, CDP hearing, and summons procedure rules
26 CFR Part 301
Estate & gift tax regulationsComing soon
Valuation and transfer-tax rules behind Connelly-type disputes
26 CFR Parts 20, 25

Agency Decisions & Guidance

The Internal Revenue Bulletin guidance and taxpayer-specific rulings that frame audit positions and litigation — searchable alongside the case law.

Revenue Rulings
The Service’s published positions applying the law to stated facts
Rulings
Private Letter Rulings & TAMs
Taxpayer-specific rulings and technical advice released under § 6110
Rulings

Courts & Tribunals

The forums where tax disputes are litigated — deficiency, refund, and collection cases follow different paths to review.

Appellate
U.S. Supreme Court; all 13 federal circuits — venue follows the taxpayer’s residence under the Golsen rule; the Federal Circuit hears Court of Federal Claims appeals
Trial
U.S. Tax Court — published T.C. and Memorandum opinions in deficiency and CDP cases; U.S. District Courts and the Court of Federal Claims — refund suits; bankruptcy courts — tax claims and discharge disputes
State
State appellate courts and tax tribunals — SALT controversies from Wayfair-era nexus disputes to residency and apportionment fights, across all 50 states

Key Cases

The controlling authorities — linked to full text, treatment, and citing decisions in Midpage.

United States v. Boyle

469 U.S. 241 (1985)|Treatment|History|Penalties

Reliance on an agent is not reasonable cause for late filing — though reliance on substantive advice of counsel can be.

Moore v. United States

602 U.S. 572 (2024)|Treatment|History|Constitutional

The mandatory repatriation tax is constitutional — Congress may attribute an entity’s realized income to its shareholders.

Commissioner v. Zuch

605 U.S. 422 (2025)|Treatment|History|Procedure

The Tax Court loses CDP jurisdiction once the IRS abandons the levy — remaining liability disputes belong in refund litigation.

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