Definition
A tax imposed on the right or privilege of receiving property from a deceased person, measured by the value of the property received by each beneficiary. Unlike an estate tax, which is levied against the decedent's estate as a whole before distribution, an inheritance tax is assessed on the individual recipient. The tax obligation belongs to the heir or beneficiary, not to the estate itself, and the rate applied may vary depending on the relationship between the beneficiary and the decedent — closer relatives typically receive lower rates or larger exemptions, while more distant relatives or unrelated beneficiaries face higher rates.
Common Language
Modern common usage (Wiktionary): "A tax based on the value of the property of a deceased person, and charged on the beneficiaries of the estate."
Historical common usage (Webster's 1913): Webster's 1913 does not appear to carry a dedicated entry for inheritance tax, reflecting the relative novelty of the tax in American law at that time.
The common definition is broadly accurate but obscures the most important legal distinction: an inheritance tax falls on the beneficiary receiving property, while an estate tax falls on the estate transferring it. Colloquially, the two are often called interchangeably a "death tax," which compounds the confusion. In research and planning contexts, the distinction is not merely technical — it determines who owes the tax, what exemptions apply, and which jurisdiction has authority to collect.
Common Confusion
INHERITANCE TAX vs. ESTATE TAX: These are distinct taxes that can coexist. An estate tax is calculated on the gross estate before distribution and is paid by the estate's executor. An inheritance tax is calculated on each beneficiary's share after distribution and is paid by the recipient. The federal government imposes an estate tax but no inheritance tax. Several states impose one, the other, or both. Researchers and practitioners using older materials must be alert to the fact that sources sometimes use "inheritance tax" loosely to mean any death-related transfer tax, including what modern law would classify as an estate tax.
INHERITANCE TAX vs. DEATH DUTIES: "Death duties" is the older and broader term, used historically to encompass all taxes triggered by death-related transfers of property. Bouvier's directs readers from inheritance tax to the entry for Death Duties, signaling that at the time of that edition the taxonomy had not fully stabilized. Modern usage treats inheritance tax as a specific subcategory within the broader family of death duties or death taxes.
Why It Matters in Research
The most significant navigational trap in this area is the persistent conflation of inheritance taxes and estate taxes across legal sources spanning the late nineteenth century through the mid-twentieth century. Earlier treatises and court opinions frequently used the terms interchangeably or applied "inheritance tax" as a generic label for any levy triggered at death. Researchers using Bouvier's or similar sources must read surrounding context carefully before concluding which type of tax is actually being discussed.
Jurisdictional variation is substantial and materially affects research outcomes. The federal government does not impose an inheritance tax; it imposes an estate tax. At the state level, the picture is fragmented — some states have an inheritance tax only, some an estate tax only, some both, and many have neither. States that once had inheritance taxes have repealed them at various points, often in response to federal estate tax changes, particularly following the phase-out of the federal credit for state death taxes after 2001. That decoupling is the central planning and research issue addressed in the Trusts, Estates & Probate Encyclopedia entry cross-referenced above.
Rate structures in inheritance tax regimes are typically graduated by relationship class. A surviving spouse may pay nothing; a sibling may face a moderate rate; an unrelated beneficiary may face the highest rate. This means that a single estate can generate inheritance tax liability at multiple different rates across its various beneficiaries simultaneously. Researchers analyzing historical estates or disputes must reconstruct the applicable rate schedule for the correct jurisdiction and year.
For federal income tax purposes, inherited property generally receives a stepped-up basis and is excluded from the beneficiary's gross income, a separate regime addressed in The Law Mind Tax Encyclopedia entry on Exclusions — Gifts and Inheritances. Researchers should not conflate the imposition of an inheritance tax at the state level with the federal income tax treatment of the same inherited property; these are parallel but independent legal questions.
Historical Dictionary Support
Bouvier's entry is brief but legally precise in one critical respect: it frames the inheritance tax not as a tax on property itself but on the privilege of receiving property through devise or descent. This framing — that the state is taxing a right it created, not property that exists independently — was the constitutional foundation states used to defend inheritance taxes against early challenges. Bouvier cites a Kentucky decision for the proposition that the right of inheritance is a creature of law, not a natural right, and that the granting authority may therefore attach conditions, including taxation, to its exercise. This privilege theory was the dominant constitutional rationale for inheritance taxes in American courts through the early twentieth century and explains much of the doctrinal language found in cases from that era.
What Bouvier's does not address — because it postdates the edition — is the transformation brought about by the federal estate tax regime beginning in 1916 and the subsequent credit-and-pickup tax structure that briefly unified state and federal death taxation before being dismantled in the early 2000s. Modern research on this topic must go well beyond the historical dictionaries.
Jurisdictional Note
As of the mid-2020s, a minority of U.S. states impose an inheritance tax; the majority do not. States with inheritance taxes include Iowa (being phased out), Kentucky, Maryland, Nebraska, New Jersey, and Pennsylvania, though this list has shifted over time and researchers should verify current status. Maryland is notable for imposing both an estate tax and an inheritance tax. No federal inheritance tax exists in the United States.
Encyclopedia Cross-Reference
The Law Mind Trusts, Estates & Probate Encyclopedia: State Estate and Inheritance Taxes — Decoupling and Planning Considerations
The Law Mind Tax Encyclopedia: Exclusions — Gifts and Inheritances