Kentucky Estate
Tax Calculator

Kentucky does not impose a state estate tax. However, Kentucky does impose an inheritance tax on transfers to certain beneficiaries.

Class A beneficiaries (spouse, children, grandchildren, parents, and siblings) are exempt. Class B beneficiaries (nieces, nephews, aunts, uncles) face rates from 4% to 16%, and Class C beneficiaries (all others) face rates from 6% to 16%.

The inheritance tax is distinct from an estate tax — it is levied on the recipient based on their relationship to the decedent, not on the estate itself. Each beneficiary class has its own exemption amount: $1,000 for Class B and $500 for Class C.

These low exemptions mean the inheritance tax applies broadly to non-exempt transfers.

Kentucky's inheritance tax and the federal estate tax operate independently. The federal **$15 million exemption and 40%** rate apply to the total estate regardless of who receives the assets.

Kentucky's inheritance tax depends on who receives what, with exempt classes paying nothing and non-exempt classes paying up to 16%.

Model both taxes separately. An estate well under the federal threshold may still generate significant Kentucky inheritance tax if substantial bequests go to Class B or C beneficiaries.

Kentucky's inheritance tax creates incentives to route assets to Class A beneficiaries where possible. Life insurance payable to a Class B or C beneficiary is subject to the inheritance tax, so consider whether an ILIT or trust structure can shift the beneficiary designation to an exempt class.

Kentucky is a common-law property state. The surviving spouse's dower or curtesy interest (one-third of real property and one-half of surplus personal property) is exempt from inheritance tax.

Horse industry estates are a Kentucky specialty — thoroughbred breeding stock, stallion shares, and farm real estate require specialized valuation and may qualify for special use valuation under IRC 2032A.

Model both federal estate tax and Kentucky inheritance tax exposure using this calculator. The tool helps evaluate how beneficiary classes affect the state tax burden.

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Because Kentucky does not impose a state estate tax, the federal estate tax is the only transfer tax layer. The current federal exemption of $15 million per individual (2025) shelters the vast majority of estates.

However, estates that exceed this threshold face a top marginal rate of 40%, making federal planning essential for high-net-worth Kentucky residents.

The Tax Cuts and Jobs Act (TCJA) doubled the federal exemption effective 2018, but this increase is scheduled to sunset after 2025. If Congress does not act, the exemption will revert to approximately $7 million (adjusted for inflation).

For Kentucky residents with estates between $7 million and $15 million, this sunset creates a planning window: transfers made now under the higher exemption will not be clawed back, even if the exemption later decreases.

The absence of a state estate tax in Kentucky simplifies the analysis — there is no gap between state and federal exemptions to navigate, no separate state return to file, and no risk of double taxation. However, this also means there is no state-level deduction to offset federal liability.

Federal planning tools — marital deductions, charitable deductions, and the unified credit — carry the full weight of estate tax mitigation. Use the Kentucky estate tax calculator to model current and post-sunset scenarios, and review the Kentucky probate cost calculator to understand full settlement costs.

Federal portability allows a surviving spouse to inherit the deceased spouse's unused estate tax exclusion (DSUE), effectively doubling the available federal exemption to $30 million for married couples. Electing portability requires filing Form 706 for the first-to-die spouse, even if no federal estate tax is owed — a step that is frequently overlooked when no tax appears to be due.

Because Kentucky does not impose a state estate tax, there is no state-level portability concern. The federal election is the only one that matters, and it applies automatically to the surviving spouse's estate once made.

This is simpler than in estate-tax states, where the lack of state portability forces the use of bypass trusts to preserve both exemptions.

Despite this simplicity, portability has limitations. The DSUE amount is not indexed for inflation — it locks in at the value of the first spouse's unused exemption at the date of death.

If the surviving spouse remarries and the new spouse dies, the DSUE from the first spouse is lost. For Kentucky families with significant wealth, bypass trusts may still be preferable to portability because they provide asset protection, generation-skipping benefits, and inflation-adjusted growth outside the surviving spouse's taxable estate.

Use the executor fee calculator and probate cost calculator to understand the full administration picture when comparing trust structures.

Without a state estate tax, Kentucky residents focus planning efforts on the federal layer. The current $15 million exemption provides substantial shelter, but the scheduled TCJA sunset makes it prudent to accelerate planning.

Irrevocable trusts — including ILITs, SLATs, and QPRTs — remove assets from the taxable estate permanently. Once transferred, these assets and their future appreciation are outside the federal estate, regardless of future exemption changes.

Annual exclusion gifts of $19,000 per recipient (2025) remain the simplest estate reduction tool. Married couples can jointly gift $38,000 per recipient through gift-splitting.

Over a decade, a family gifting to four beneficiaries annually removes $1.44 million from the estate with no gift tax return required. Charitable deductions — whether through outright bequests, donor-advised funds, or charitable trusts — further reduce the taxable estate while supporting philanthropic goals.

GRATs and GRUTs (grantor retained unitrusts) transfer appreciation to beneficiaries at minimal transfer tax cost. For Kentucky residents holding concentrated stock positions or rapidly appreciating assets, these vehicles are particularly efficient.

Family limited partnerships and LLCs may provide valuation discounts for gift and estate tax purposes, though the IRS scrutinizes these structures closely. Professional valuation and proper documentation are essential.

Model your federal exposure with the Kentucky estate tax calculator, or find an estate planning attorney in Kentucky for personalized guidance.