Federal immunity and anti-commandeering

Federal immunity and anti-commandeering

Published September 28, 2026

Federal immunity and anti-commandeering

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Federal immunity from state taxation and the Tenth Amendment protect different features of federalism: one asks who may bear a state tax, while the other asks whether federal law has commandeered state government.

Intergovernmental tax immunity generally bars a State from imposing a tax directly on the United States, a federal agency, federal property, or a federal instrumentality. The decisive question is usually legal incidence: who is legally liable for the tax, not who ultimately suffers its economic cost. A private contractor may pass a tax’s cost to the federal government through its contract price without becoming the United States for immunity purposes.

Tax targetWho has legal incidenceEconomic pass-throughUsual resultDecisive fact
Federal agency or federal propertyUnited States or federal entityIrrelevantBarred absent congressional authorizationTax bill or liability rests on the federal side
Private federal contractor or vendorPrivate partyMay be passed to United StatesGenerally allowedPrivate party remains legally liable
Federal employeeEmployee personallyReduces take-home payGenerally allowed if nondiscriminatoryEmployee is not the federal entity

Thus, a county cannot impose a property tax on a federally owned installation merely because the tax applies to all property. It also cannot send a sales or use tax bill directly to a federal agency for the agency’s own purchase. By contrast, the State may ordinarily tax a vendor’s sale or a contractor’s income, property, or business activity when the vendor or contractor is the taxpayer under state law. The same reasoning generally permits a nondiscriminatory state income tax on a federal employee.

Look for concrete triggers: a state assessment naming the United States as taxpayer, a county valuation of federal land, a state tax imposed on a federal agency’s purchase, or a private company arguing that its federal contract makes its own tax immunity absolute. Then ask: Who is legally obligated to pay? If the answer is the federal government or its property, immunity is implicated. If the answer is a private actor, economic burden alone ordinarily does not defeat the tax.

This topic is not starred: legal resources may be supplied when it is tested, and where they are not, you need only demonstrate recognition that the topic is at issue.

The Floor: Identify the Government Target Before the Rule

The usable floor has four pieces. First, recognize intergovernmental tax immunity when a State taxes the United States, a federal agency, federal property, or a private party dealing with the federal government. Second, recognize Tenth Amendment reserved powers as the structural principle that powers not delegated to the United States remain with the States or the people. Third, recognize anti-commandeering when federal law directs a state legislature or state executive officer to enact, administer, or enforce a federal program. Fourth, know the near-miss categories: direct federal regulation of private persons, generally applicable regulation of a State as employer, conditions on federal funds, and duties of state courts.

The floor is not the exact element wording of every supplied provision, a complete list of exceptions, or numbered subsections. Those contents can be located in the resource. The floor is knowing what words to search for and what factual fork matters: tax liability versus economic burden; direct federal regulation versus an order to state government; legislative or executive command versus a permitted state-court or funding arrangement.

Anti-Commandeering: Separate Regulation from Administration

The Tenth Amendment does not give States a veto over every valid federal law. Congress may act within an enumerated power and regulate private conduct directly. The separate anti-commandeering rule asks whether Congress has used state government as the instrument for carrying out that federal policy.

Run the analysis in this order:

  1. Identify the governmental target. A federal law directed at private businesses or individuals is not, merely for that reason, a command to the State. A law directed to “each State,” its legislature, its governor, or its police is a live anti-commandeering problem.

  2. Identify the required act. A federal order that a state legislature enact, retain, repeal, or refrain from enacting a law is invalid commandeering. The same is true when Congress requires state executive officers or local police to conduct background checks, collect federal information, or administer a federal regulatory scheme.

  3. Check the near misses. A generally applicable federal rule may regulate a State in its capacity as an employer, such as by governing employment conditions. That is direct regulation of the State itself, not an order that the State regulate private parties. Congress may also offer funds subject to clear conditions if the State has a genuine choice; an inducement is not automatically a command.

  4. Check state courts separately. Federal law may generally require state courts, when exercising jurisdiction, to hear and apply federal claims. The special permission for state adjudication does not authorize Congress to conscript state legislatures or executive administrators.

  5. If the federal law regulates private conduct directly, the issue may instead be the supremacy or preemption analysis taught in the sibling chapter. A State cannot relabel a valid federal rule for private actors as commandeering simply because compliance changes state policy.

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The recurring errors are:

  • Treating a contractor’s pass-through of a tax cost as proof that the federal government bears legal incidence, even though the contractor is the named taxpayer.

  • Treating a federal employee as a federal entity, despite the employee’s personal liability for a generally applicable income tax.

  • Treating every federal rule affecting a State as commandeering, even when the rule regulates the State directly as an employer.

  • Treating a federal grant condition as an order, without asking whether the State has a genuine option to refuse the funds.

  • Calling a conflict between federal regulation of private actors and state law “commandeering,” instead of recognizing the boundary with preemption.

When a legal resource is supplied, read it as an executable text. Locate the operative prohibition or permission; list its required conditions; locate its exception; then map each fact to one condition. Do not begin with the policy result. Begin with the provision’s subject, legal incidence, actor, and verb.

One Supplied-Rule Item: Tax the Contractor or the United States

For this item, the supplied governing provision states:

A State may not impose a tax when the legal incidence rests on the United States, a federal agency, or federal property.

A State may impose a generally applicable tax on a private person or entity that contracts with or does business with the United States, even if that person passes the economic cost to the United States.

Congress may authorize a tax that would otherwise be barred by the first paragraph.

The United States owns a research station located in State. The station is operated by a federal agency, which employs federal scientists and buys electricity directly from a private utility.

State imposes a “Federal Operations Assessment” on every entity operating a research facility in State. The assessment is calculated from the facility’s annual electricity use, and the state bill is sent directly to the federal agency that operates the station.

State argues that the assessment is valid because it applies to every research facility and pays for roads used by the public.

Practice

Is State’s assessment constitutional?

Three Fast Applications: Put the Floor to Work

Practice

State imposes an income tax on every person employed in State, including a federal scientist who is personally liable for the tax on her salary. The rate and deductions are the same for federal and private employees. Is the tax valid?

Congress directs every state legislature to enact a law requiring private employers to send employee records to a federal agency. Congress provides no federal reporting system and does not regulate the employers directly. Is the directive constitutional?

A federal law applies to every employer, including a state university, and requires payment of a uniform minimum wage. The law does not require the university to regulate private employers or administer a federal program. Is the law invalid under the Tenth Amendment?

High-Yield Points - ⚡ Biggest Takeaways

Ask who is legally liable for a state tax, not who ultimately bears its cost. A federal power to regulate does not include power to order state legislatures or executives to administer federal policy. Direct federal regulation of a State as employer and duties of state courts are near-misses, not ordinary commandeering.

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Practice Questions: Federal immunity and anti-commandeering

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                    Flashcards: Federal immunity and anti-commandeering

                    1. 1. What is the anti-commandeering rule?

                      Show answer

                      The federal government may not require states or their officials to enact, administer, or enforce a federal regulatory program. Congress may regulate private parties directly and may condition federal funds on compliance with valid conditions.

                    2. 2. What is the general rule for federal taxation of states and state taxation of the federal government?

                      Show answer

                      Under intergovernmental tax immunity, the federal government and states may not directly tax each other or impose taxes that discriminate against the other sovereign. A generally applicable, nondiscriminatory tax on a government’s private-party contractors may be permissible.

                    3. 3. What are the key steps to analyze a federalism issue involving both federal and state action?

                      Show answer

                      1. Identify the target (private conduct, federal government, instrumentality, or interstate commerce). 2. Check for federal preemption. 3. Test intergovernmental immunity if a state taxes/regulates the federal government. 4. Test anti-commandeering if federal law directs state officials. 5. Test dormant Commerce Clause if a state measure burdens interstate commerce.

                    4. 4. What is the presumption against preemption, and when does it apply?

                      Show answer

                      Courts presume Congress did not intend to displace state law when the state rule concerns an area traditionally regulated by states and the federal statute's scope is unclear. The federal statute is then read narrowly to preserve state authority unless a clear preemptive purpose is shown.

                    5. 5. What is the general sequence of analysis for a dormant Commerce Clause challenge to a state measure?

                      Show answer

                      First, determine whether the state is acting as a market participant. If not, ask whether the measure discriminates against interstate commerce—facially, in purpose, or in practical effect. A discriminatory measure is generally invalid unless Congress has clearly authorized it or the state proves a legitimate local purpose that cannot be adequately served by reasonable nondiscriminatory alternatives. If the measure is evenhanded but incidentally burdens interstate commerce, apply Pike balancing: it is invalid only if the burden on interstate commerce is clearly excessive in relation to the putative local benefits.

                    6. 6. When may a state discriminate against interstate commerce as a market participant?

                      Show answer

                      A state may favor its own citizens when it is acting as a market participant, such as a buyer or seller, rather than as a market regulator. The exception does not permit discrimination in downstream markets or regulation of private parties outside the transaction.

                    7. 7. When does field preemption generally apply?

                      Show answer

                      Field preemption applies when federal regulation is so pervasive that it occupies the entire regulatory field, or when a federal interest is dominant and the state law would interfere with it. Congressional intent to occupy the field is controlling.

                    8. 8. What is the congressional-authorization exception to dormant Commerce Clause limits?

                      Show answer

                      Congress may authorize state laws that would otherwise violate the dormant Commerce Clause because Congress has power to regulate interstate commerce. The authorization must be clear enough to show that Congress intended to permit the discrimination or burden.

                    9. 9. What is the Supremacy Clause rule when valid federal law conflicts with state law?

                      Show answer

                      The federal law prevails, and the conflicting state law is invalid to the extent of the conflict. Federal law must be constitutionally valid to have supremacy.

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