A relative passes away, an estate settles, and a check eventually arrives. Most people's first tax question is simple: do I owe the federal estate tax? For the overwhelming majority of families, the answer is no. The federal exemption is so high that it rarely touches an ordinary inheritance.
That relief can be premature. A handful of states run their own inheritance tax system, separate from the federal one, with its own exemptions, its own rates, and its own filing deadline. Someone can clear the federal threshold by a wide margin and still owe a state inheritance tax bill they never saw coming.
How the Federal Estate Tax Actually Works
The federal estate tax is charged against the estate itself, before assets are distributed, not against the people receiving them. It only applies once the value of the estate crosses an exemption amount that adjusts for inflation. That threshold has climbed high enough in recent years that only a small fraction of estates nationwide ever file a taxable federal return.
There is also a portability rule that lets a surviving spouse carry over any unused portion of the deceased spouse's exemption, which pushes the effective threshold for a married couple even higher. Claiming that portability is not automatic. It generally requires filing a federal estate tax return for the first spouse to die, even when no tax is owed, purely to preserve the unused amount for later.
The IRS estate and gift tax overview lays out the current exemption figures and how the calculation works. Because the number changes periodically, and because it is scheduled to shift again in the coming years under current law, checking the figure directly rather than relying on a number from an older article is worth the extra minute.
What a State Inheritance Tax Actually Is
A state inheritance tax works differently from an estate tax, and the distinction matters more than the similar names suggest. An estate tax is levied against the estate as a whole. An inheritance tax is levied against each individual heir, based on what that specific person received and how closely they were related to the deceased.
That per-heir structure means two siblings splitting the same estate evenly can end up with two very different tax bills, depending on who else is receiving a share and what exemptions apply to each relationship category. It is a fundamentally different calculation from anything the federal return does.
States that use this model typically sort heirs into relationship classes, sometimes labeled Class A, B, and C or given similar names, and each class carries its own exemption amount and its own rate schedule. A spouse or child usually sits in the most favorable class. A sibling, niece, or nephew usually sits one tier down. A friend, unmarried partner, or unrelated beneficiary usually sits in the least favorable class, facing the highest rate and the smallest exemption. The exact class definitions and rates are set individually by each state that still runs this kind of tax, so the specifics for a Pennsylvania estate look different from the specifics for a Maryland one.
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Which States Still Collect It
Only a small number of states impose an inheritance tax today, and the list has shrunk over time as several states repealed theirs. Pennsylvania and Maryland are among the states that still collect one. Maryland is unusual in that it layers a state inheritance tax on top of its own separate state estate tax, so the two can apply to the same estate at the same time.
Pennsylvania's inheritance tax guidance and Maryland's estate and inheritance tax page both spell out current rates and exemptions. Rules and rates shift with state budget cycles, so a page written a few years ago may already be out of date on the specifics.
New Jersey repealed its estate tax but kept its inheritance tax on the books, which is a distinction that trips people up when they read general articles that only mention "New Jersey estate tax was repealed" without the second half of that sentence. The New Jersey Division of Taxation is the source to check for anyone settling an estate with New Jersey ties.
A few other states, including Kentucky and Nebraska, also maintain their own inheritance tax with relationship-based rate tiers similar in structure to Pennsylvania's, even though the specific rates and exemptions differ from state to state. Iowa phased its inheritance tax out in recent years, which is a reminder that this list is not static. A state that had one a decade ago may not have one now, and a state that seems unlikely to add one could still change its rules in a future budget cycle. Confirming the current rule for the specific state involved, rather than relying on general knowledge of "which states have this," is part of what a tax advisor's research is actually for.
Why Your Relationship to the Deceased Changes the Bill
This is the part of state inheritance tax that surprises people most. In states that still impose it, the rate an heir pays typically depends on how closely they were related to the person who died. A surviving spouse is commonly exempt entirely. Children and grandchildren often pay a lower rate, or nothing at all in some states. Siblings, nieces, nephews, friends, and unrelated beneficiaries frequently pay the highest rate on the same dollar amount.
That means a will leaving equal shares to a daughter and a close friend can produce two very different net inheritances after tax, even though the dollar figures on paper were identical. It is a detail that estate planning documents drafted years earlier may not have accounted for if family circumstances changed.
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State Estate Tax Is a Separate, Third Category
To make things more layered, some states impose their own estate tax that is entirely distinct from both the federal estate tax and any state inheritance tax. A state estate tax, like the federal version, is charged against the estate before distribution. A state inheritance tax, as covered above, is charged against each recipient afterward.
A family can theoretically face all three: a federal estate tax on a very large estate, a state estate tax in a state that levies one, and a state inheritance tax based on who inherits what. Most families never see more than one of these three systems, if any, but understanding that they are separate calculations helps make sense of why two friends in different states can have wildly different experiences settling similar estates.
A Simple Example to Illustrate the Difference
Picture a Pennsylvania resident who dies leaving an estate well under the federal exemption, so no federal estate tax return is owed. The estate is split three ways: a share to a spouse, a share to an adult child, and a share to a close friend who had been a caregiver in later years.
Under Pennsylvania's relationship-based system, the spouse's share is taxed at zero percent. The child's share is taxed at a modest rate reserved for direct descendants. The friend's share, because friends and unrelated beneficiaries sit outside the favorable relationship classes, is taxed at a noticeably higher rate, even though the dollar amount received might be identical to the child's share.
No federal paperwork flagged any of this, because the estate never came close to the federal threshold. The entire tax outcome in this example is determined at the state level, driven by relationships rather than by the total size of the estate. That is the scenario that most often catches families off guard, and it is exactly the kind of situation worth confirming with a tax advisor rather than assuming based on what a friend's family experienced in a different state.
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Timing Looks Different Than the Federal Process
The federal estate tax return, Form 706, is generally due nine months after the date of death, with an extension available. State inheritance tax filings often run on a different clock entirely, sometimes with a shorter window and separate penalty and interest rules if the filing or payment is late.
Because these deadlines do not automatically align, coordinating them is a topic worth raising early with the professionals handling the estate, rather than assuming the federal timeline covers everything. Missing a state filing window because attention was focused entirely on the federal return is a preventable, avoidable problem.
Questions Worth Bringing to a Tax Advisor
Before assuming nothing is owed, or assuming the opposite, a few questions to clarify with a tax advisor can save real time and money:
- Did the deceased live in, or own property in, a state that still collects an inheritance tax or a separate state estate tax
- What is the exact relationship-based exemption and rate that applies to each individual heir, not just the estate as a whole
- Is a state inheritance tax return required even in cases where no federal estate tax return is due
- What documentation does the executor need to gather to support the values reported on any state filing
- Are there deadlines specific to the state filing that run on a different schedule than the federal nine-month window
None of these questions require a definitive answer from an article. They are simply the starting point for a conversation with someone who can look at the specific estate, the specific state, and the specific relationships involved.
Coordinating the People Involved
Settling an estate that touches a state inheritance tax usually means coordinating more than one professional. An estate attorney typically handles the will, probate filings, and any court requirements. A tax advisor or CPA typically handles the tax return calculations and filings, both federal and state. The executor is the person responsible for making sure everything actually gets filed and paid on time.
Groups like the National Association of Estate Planners and Councils maintain directories and educational resources that can help a family find estate planning professionals with relevant credentials in their specific state. Confirming that a professional's background and credentials hold up before engaging them is a step worth taking seriously, and verifying an advisor's background before signing anything is a reasonable habit regardless of which state is involved.
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Where This Leaves an Heir
State inheritance tax is a narrow topic, but it is exactly the kind of narrow topic that catches people off guard because the federal headlines about high exemption thresholds do not mention it. Clearing the federal bar is good news, but it is not the end of the conversation in every state.
For anyone navigating an inheritance who wants to be matched with a financial advisor who works with inheritance and windfall situations, Capivise's free advisor matching service connects people with vetted professionals rather than leaving them to search alone. The goal is a well-coordinated team, not a guess.
