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Kentucky Inheritance and Estate Tax
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Kentucky Inheritance and Estate Tax

Kentucky levies a state inheritance tax by beneficiary class, not an estate tax. Class A relatives pay nothing; Class B and C owe tax above a small exemption.

By Settled Editorial

Kentucky is not a no-death-tax state. It charges a state inheritance tax that turns on the beneficiary's relationship to the person who died, not on the size of the estate. A spouse, child, parent, grandchild, or sibling pays nothing. More distant heirs and unrelated beneficiaries owe tax above a small exemption. Kentucky's separate estate tax has produced no tax since 2004, and the federal estate tax reaches only estates above $15 million in 2026. To check a specific estate against the current thresholds, run the numbers in the Kentucky estate tax calculator.

Kentucky Charges an Inheritance Tax, Not an Estate Tax

Two different death taxes get confused here, so separate them first. An inheritance tax falls on each beneficiary and is measured by what that person receives. An estate tax falls on the whole estate before anything is handed out. Kentucky runs an inheritance tax and only a dormant estate tax, which is the reverse of what many national articles assume.

Under KRS 140.010, Kentucky taxes the fair cash value, as of the date of death, of property that passes by will, by intestate succession, or by a transfer meant to take effect at death. The amount each beneficiary owes depends on their class, set by KRS 140.070 and KRS 140.080. Kentucky is one of a handful of states that still collects an inheritance tax, so treating it as a no-death-tax state is a common and costly mistake.

Kentucky's estate tax still sits in the statute at KRS 140.130, but it collects nothing. It is a pick-up or sponge tax, equal to the amount by which the old federal credit for state death taxes exceeded the Kentucky inheritance tax. Congress phased that federal credit out after 2004, so there is nothing left to pick up. The estate tax computes to zero for any modern death, even though lawmakers never repealed the section.

Kentucky also charges no tax on the value of an estate just for opening probate. The county clerk collects flat recording fees, the District Court charges fixed court costs, and a notice runs in the paper. Those are set charges, not a percentage of what the estate is worth. See the Kentucky probate guide for how the court process works.

The Three Inheritance Tax Classes

How much inheritance tax a beneficiary owes depends on which of three classes they fall into. The class is fixed by the family relationship, and the exemption and rate follow from it.

Class A: Family Pays Nothing

Class A beneficiaries owe no Kentucky inheritance tax at all. Their entire inheritable interest is exempt under KRS 140.080(1)(b). Class A covers:

  • A surviving spouse
  • A parent
  • A child by blood, a stepchild, or a child adopted during infancy, and, in some cases, a child adopted as an adult who was reared by the decedent as a minor
  • A grandchild who is the child of one of those children
  • A brother or sister, including a half-brother or half-sister
  • A nephew or niece, including a half-blood nephew or niece, for deaths on or after January 1, 2026

Because Class A now takes in the whole immediate family plus siblings, nephews, and nieces, most Kentucky estates that pass to relatives owe no inheritance tax.

Class B: $1,000 Exemption, 4% to 16%

Class B beneficiaries get a $1,000 exemption, then pay a graduated rate from 4% up to 16% under KRS 140.070(2). Class B covers a son-in-law or daughter-in-law, an aunt or uncle, and a great-grandchild who descends from one of the children listed in Class A.

The Class B rate on the amount above the $1,000 exemption runs:

Inheritable interestRate
First $10,0004%
$10,000 to $20,0005%
$20,000 to $30,0006%
$30,000 to $45,0008%
$45,000 to $60,00010%
$60,000 to $100,00012%
$100,000 to $200,00014%
Over $200,00016%

Class C: $500 Exemption, 6% to 16%

Everyone else is Class C: a cousin, a friend, an unrelated person, or an organization that does not qualify for a charitable exemption under KRS 140.060. Class C gets a $500 exemption and pays a graduated rate from 6% up to 16% under KRS 140.070(3).

Inheritable interestRate
First $10,0006%
$10,000 to $20,0008%
$20,000 to $30,00010%
$30,000 to $45,00012%
$45,000 to $60,00014%
Over $60,00016%

The 2026 Change, and a Rumor Worth Correcting

One 2026 update matters, and one rumor about it does not. The real change: nephews and nieces, including half-blood nephews and nieces, moved from Class B to Class A for anyone who died on or after January 1, 2026. That shift came from 2026 Ky. Acts ch. 198, and the Legislative Research Commission note on both KRS 140.070 and KRS 140.080 ties it to deaths on or after that date. A niece who would have paid tax on a large bequest before 2026 now inherits free of Kentucky inheritance tax.

The rumor to ignore: some pages claim that Class B beneficiaries became fully exempt in 2026. That did not happen. Class B still gets only the $1,000 exemption and still pays 4% to 16%. The single 2026 reclassification moved nephews and nieces into Class A, and it did nothing to the Class B or Class C exemptions or rates.

Filing and Paying the Kentucky Inheritance Tax

A Kentucky inheritance tax return is required only when a taxable transfer happens or a federal estate tax return is due (KRS 140.160(2)). An estate that passes entirely to Class A beneficiaries owes no tax and files no inheritance tax return. When property does pass to a Class B or Class C beneficiary, someone has to file. The personal representative files the return, or the beneficiaries file it if no personal representative is serving.

The deadline changed in 2026 and now depends on the date of death:

  • For a death before July 1, 2026, the return and payment are due within 18 months after death. Paying within 9 months earns a 5% discount, and no interest runs if the tax is paid within 18 months.
  • For a death on or after July 1, 2026, the return and payment are due within 24 months after death. Paying within 14 months earns a 5% discount, and no interest runs if the tax is paid within 24 months.

The extra six months came from 2026 Ky. Acts ch. 161, which amended KRS 140.160 and KRS 140.210. The Kentucky Department of Revenue administers the tax and supplies the return forms. If the estate holds property that passes to more distant relatives or friends, price the tax early, because paying at the 9 or 14 month mark captures the 5% discount.

The Federal Estate Tax

The federal estate tax is the one death tax that can reach a large Kentucky estate, and it applies only above a high threshold. For deaths in 2026, each person can pass up to $15 million free of federal estate tax. Only the amount above $15 million is taxed, and the top rate is 40%.

A few points shape how it works:

  • The $15 million exclusion is per person and is indexed for inflation, so it rises in later years.
  • A married couple can shield up to $30 million by combining both exclusions through portability, covered below.
  • The estate files IRS Form 706, and it is due nine months after death, with a six-month extension available on request.

Older planning memos warned that the exclusion would drop by about half at the start of 2026 under a sunset written into the 2017 tax law. That cut did not take effect. Under current federal law the exclusion stands at $15 million per person for 2026 and continues to adjust upward. If your documents hold trusts built around a smaller number, review them, because the design may no longer fit.

What Counts in the Federal Gross Estate

The federal gross estate is wider than the probate estate. It generally includes:

  • Real estate, bank and brokerage accounts, stocks, and bonds
  • Life insurance on a policy the person owned or controlled, since ownership controls inclusion, not who the beneficiary is
  • Retirement accounts such as IRAs, 401(k)s, and 403(b)s
  • Business interests, farmland, and closely held stock
  • The person's share of jointly owned property
  • Assets in a revocable living trust

A Kentuckian with a paid-off house, a sizable IRA, and a life insurance policy can hold a gross estate far above their probate estate, because most of those assets pass outside probate yet still count federally. Two deductions then erase the tax for almost everyone: property left to a surviving spouse who is a U.S. citizen passes with no dollar cap, and property left to a qualified charity is fully deductible. Debts, funeral costs, and administration expenses come off too. The Kentucky creditor claims guide covers how valid debts get paid.

Portability for Married Couples

When the first spouse dies, their unused federal exclusion does not have to disappear. Under the portability election, the surviving spouse can add the deceased spouse's unused exclusion to their own. Say a husband dies in 2026 having used $4 million of his $15 million exclusion. His remaining $11 million can move to his wife, giving her $26 million shielded from federal estate tax.

Here is the catch: portability is not automatic. The executor has to file IRS Form 706 to claim it, and the return is due nine months after death, with a six-month extension. Many families skip Form 706 when the estate owes nothing, and that choice can cost a surviving spouse later if the couple's combined estate grows past one exclusion. Filing only to lock in portability is a modest step worth weighing with an attorney.

Inheritance Tax Is Not the Step-Up in Basis

Keep two more taxes apart. The Kentucky inheritance tax and the federal estate tax are both death taxes on the transfer of wealth. The step-up in basis is an income-tax rule that touches nearly every inherited asset, whatever the estate is worth.

Under Internal Revenue Code Section 1014, an inherited asset's cost basis resets to its fair market value on the date of death. That reset shrinks the capital gains tax an heir owes when they later sell. Kentucky is a separate-property state, so only the decedent's share of jointly owned property steps up. For most Kentucky families, the step-up is the tax rule that actually changes the math, not the estate tax. Work through it in the Kentucky step-up in basis guide, and if a sale is coming, read selling inherited property in Kentucky for the deed and capital gains after inheritance.

Practical Steps for Kentucky Families

Most Kentucky estates need little tax planning, but a few checks pay off:

  1. Sort the beneficiaries into classes. If everything passes to Class A relatives, no Kentucky inheritance tax is due. Tax shows up when property goes to aunts, uncles, in-laws, great-grandchildren, cousins, friends, or non-exempt organizations.
  2. Watch the return deadline. File and pay by the 18 or 24 month mark that fits the date of death, and aim for the 9 or 14 month point to capture the 5% discount on any tax owed.
  3. Add up the full federal picture. Count life insurance you own and retirement accounts, not just probate assets. If the total sits well below $15 million, no federal estate tax applies.
  4. Preserve portability. If one spouse dies, weigh filing Form 706 to save the unused exclusion, even when no tax is due.
  5. Handle the income-tax tasks. Kentucky still has an income tax, so check whether a final individual return (Form 740) and a fiduciary return (Form 741) are needed when the estate earns income during administration.

For who inherits when there is no will, read the Kentucky intestate succession guide. For the personal representative's job in filing returns and paying debts, see Kentucky executor duties, and for tools that keep assets out of court, start with how to avoid probate in Kentucky.

Frequently Asked Questions

Does Kentucky have an inheritance tax or an estate tax?

Kentucky has an inheritance tax and effectively no estate tax. The inheritance tax (KRS 140.010) is charged to each beneficiary based on their class. Class A relatives pay nothing, while Class B and Class C beneficiaries pay tax above a small exemption. Kentucky's estate tax (KRS 140.130) is a dormant pick-up tax that has produced no tax since 2004.

Who is exempt from Kentucky inheritance tax?

Class A beneficiaries are fully exempt (KRS 140.080). Class A covers a surviving spouse, parents, children, grandchildren, brothers and sisters, and, for deaths on or after January 1, 2026, nephews and nieces. Because most people leave their estate to Class A relatives, many Kentucky estates owe no inheritance tax.

Did Kentucky make Class B beneficiaries exempt in 2026?

No. That claim is circulating, and it is wrong. The only 2026 change moved nephews and nieces from Class B to Class A for deaths on or after January 1, 2026 (2026 Ky. Acts ch. 198). Class B still gets a $1,000 exemption and still pays 4% to 16%, and Class C still gets a $500 exemption and pays 6% to 16%.

When is the Kentucky inheritance tax return due?

It depends on the date of death. For a death before July 1, 2026, the return and payment are due within 18 months, with a 5% discount for paying within 9 months. For a death on or after July 1, 2026, the deadline is 24 months, with the 5% discount for paying within 14 months (KRS 140.160, 140.210).

How much can I leave without owing federal estate tax?

For deaths in 2026, the federal estate tax exclusion is $15 million per person. A married couple can shield up to $30 million using portability. Only the amount above the exclusion is taxed, at a top rate of 40%. Most Kentucky estates fall far below the threshold and owe no federal estate tax.

Related Kentucky Guides

This guide is general information about Kentucky inheritance and estate tax. It is not legal advice, and it is not tax advice. Verify every dollar figure, class, and filing deadline here with the Kentucky Department of Revenue, the IRS, or a licensed Kentucky tax professional before you act.

Sources:

It is not legal advice.

Information current as of July 20, 2026

Settled Estate is not a law firm, and this content is for informational purposes only and does not constitute legal advice. Probate laws and procedures in Kentucky can change. Consult with a qualified attorney for advice specific to your situation. Full disclaimer.

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