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What is estate tax?

Short answer

Estate tax is a federal tax on the transfer of a deceased person’s assets before they’re distributed to heirs, and it only applies to the portion of an estate above the exemption amount, which is $15 million per person in 2026 (up to $30 million for a married couple using portability). Estates below that threshold owe no federal estate tax, though some states impose their own estate or inheritance tax at much lower thresholds.

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The 2026 federal estate tax exemption

20252026
Individual exemption$13.99 million$15 million
Married couple (with portability)$27.98 million$30 million

Source: Internal Revenue Service

For example, an estate worth $18 million, which is only $3 million over the exemption ($18,000,000 - $15,000,000 = $3,000,000), would only pay federal estate tax on that $3 million.

Who actually pays the estate tax

The estate itself pays any tax owed, using its own assets, before what’s left gets distributed to heirs. That means the people who inherit money or property generally don’t pay federal estate tax on it directly. Because the exemption is so high, many estates don’t end up owing any federal estate tax at all.

Estate tax vs. inheritance tax: what’s the difference

Estate tax and inheritance tax may seem similar on the surface, but they work differently. Estate tax is charged against the estate before assets are distributed, based on the total value of everything the deceased person owned. Inheritance tax, where it applies, is charged to the person receiving the assets, based on what they personally inherited.

Unlike estate tax, there is no federal inheritance tax, but a handful of states have their own.

What is portability and how does it help married couples

Portability lets a surviving spouse add any unused exemption from a deceased spouse to their own. If one spouse dies in 2026 having used none of their $15 million exemption, the surviving spouse can claim it in addition to their own $15 million, protecting up to $30 million combined from federal estate tax.

State estate and inheritance taxes can apply at lower thresholds

Even if your estate falls well under the federal exemption, you could still owe state-level tax. Several states impose their own estate or inheritance tax with thresholds far below $15 million, so it’s worth checking your state’s rules separately from the federal exemption.