Federal Tax Immunity: Follow the Legal Incidence
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 target | Who has legal incidence | Economic pass-through | Usual result | Decisive fact |
|---|---|---|---|---|
| Federal agency or federal property | United States or federal entity | Irrelevant | Barred absent congressional authorization | Tax bill or liability rests on the federal side |
| Private federal contractor or vendor | Private party | May be passed to United States | Generally allowed | Private party remains legally liable |
| Federal employee | Employee personally | Reduces take-home pay | Generally allowed if nondiscriminatory | Employee 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:
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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.
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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.
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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.
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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.
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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:
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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.
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Treating a federal employee as a federal entity, despite the employee’s personal liability for a generally applicable income tax.
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Treating every federal rule affecting a State as commandeering, even when the rule regulates the State directly as an employer.
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Treating a federal grant condition as an order, without asking whether the State has a genuine option to refuse the funds.
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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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