My Dad's Lawyer Said 'Estate Tax' and I Panicked. The 2026 Math Showed We Owed $0 — But Not Everyone Is That Lucky

Last spring my dad's attorney slid a folder across the table and said, "Of course, we'll want to look at the estate tax picture." I heard "estate tax," pictured a 40% bite out of everything he'd built, and spent the next three nights doing rough sums on the back of an envelope. His house, his brokerage account, a rental duplex he'd held for 25 years, a life insurance policy. About $4.1 million in total. I was sure the government was about to take well over a million of it.

It wasn't. Under the 2026 federal rules, my dad's estate owed exactly $0 in federal estate tax, and the number it would have needed to reach before owing anything was nearly four times larger than I'd guessed. This article is for anyone who has heard "estate tax" and felt the same stomach drop. You'll learn how the 2026 federal estate tax actually works, how to run the numbers yourself, and the one place the real danger still hides: your state.

---

What Is the Estate Tax and Who Actually Pays It?

The federal estate tax is a tax on the transfer of a deceased person's assets to their heirs, charged only on the value above a lifetime exemption. For 2026 that exemption is $15,000,000 per person, set by the One Big Beautiful Bill Act and indexed to inflation afterwards. A married couple can shelter up to $30,000,000 by electing portability on the first spouse's estate tax return (Form 706).

The Tax Foundation has reported that only a tiny fraction of estates, well under 1%, owe any federal estate tax in recent years, and the higher exemption means even fewer will in 2026. The tax was designed for very large fortunes, not for a family home and a retirement account.

Here is what I got wrong, and what I suspect many people get wrong:

• I assumed the tax applied to the whole estate. It only applies to the slice above the exemption.
• I forgot the exemption is per person. Two spouses are two exemptions.
• I ignored deductions. Debts, funeral costs, and gifts to charity come off before the exemption is even applied.

---

How Do You Calculate Federal Estate Tax in 2026?

The statute (IRC §2001(c)) uses graduated rates from 18% to 40%, but the top 40% bracket starts at just $1,000,000 of taxable value. Because the exemption is so much larger than that, every dollar that is actually taxed lands in the 40% bracket. In practice the formula collapses into something simple:

Exemption remaining means your full exemption minus any taxable lifetime gifts you've already used. Gift tax and estate tax share one unified lifetime exemption, which is why a big gift in 2024 can quietly shrink the exemption available at death.

The unlimited marital deduction lets you leave any amount to a US-citizen spouse with no estate tax at that moment. It defers the tax rather than eliminating it, because the assets are then part of the survivor's estate.

---

Three Worked Examples: $5M, $20M, and $35M

Here are three estates I ran through our Estate Tax Calculator, with the maths shown so you can check my work.

Example 1: Single, $5,000,000 estate. Taxable estate is $5,000,000. The exemption is $15,000,000. Nothing sits above it, so the federal tax is $0. This is the category my dad's $4.1M fell into.

Example 2: Single, $20,000,000 estate, $200,000 of debts.

1. Taxable estate: $20,000,000 − $200,000 = $19,800,000
2. Amount above exemption: $19,800,000 − $15,000,000 = $4,800,000
3. Tax: $4,800,000 × 40% = $1,920,000

Example 3: Married couple, $35,000,000 estate, $300,000 debts, $500,000 left to charity.

1. Taxable estate: $35,000,000 − $300,000 − $500,000 = $34,200,000
2. Exemption with portability: $30,000,000
3. Above exemption: $4,200,000
4. Tax: $4,200,000 × 40% = $1,680,000

Notice something in Example 3: a $500,000 charitable gift saved $200,000 in tax, because it removed money that would otherwise have been taxed at 40%. That is the logic behind most estate planning: move dollars out of the taxable slice, not out of the whole estate.

---

Why State Estate Taxes Are the Real Surprise

Here's the part my dad's attorney actually wanted to talk about. A state estate tax is a separate tax levied by the state on estates above the state's own, much lower, exemption. About a dozen states plus Washington, DC charge one, and a handful (such as Pennsylvania, Kentucky, and Nebraska) charge an inheritance tax on the heir instead.

Some of the thresholds are strikingly low. Oregon taxes estates above $1,000,000, and Massachusetts above $2,000,000. Both are a fraction of the federal figure. An estate that owes nothing federally can still owe a six-figure bill to a state.

There is also good news hiding in the rules. When heirs inherit an asset, its cost basis is generally "stepped up" to its market value at the date of death under IRC §1014. If my dad's duplex bought for $150,000 is worth $700,000 when he dies, the family can sell it right away and owe almost no capital gains tax. You can see how much that matters with our Capital Gains Tax Calculator.

---

How Do People Legally Reduce Estate Tax?

If your estate sits near or above the exemption, these are the standard levers:

1. Annual exclusion gifts. In 2026 you can give up to $19,000 to any number of people without using your lifetime exemption. A couple with three children and two grandchildren can move 5 × $38,000 = $190,000 a year.
2. Portability. File Form 706 when the first spouse dies, even if no tax is due, so the survivor keeps the unused exemption.
3. Charitable bequests. Fully deductible, as Example 3 showed.
4. Irrevocable trusts. These can remove future growth from your estate, but they cost flexibility and need an attorney.
5. Spending it. It sounds flippant, but a 40% tax rate means a dollar spent on your own life costs you less than a dollar left to be taxed.

---

What About the UK and Australia?

If you're reading from outside the US, the picture differs:

• United Kingdom: Inheritance Tax is 40% on the value above the £325,000 nil-rate band, with an extra £175,000 residence nil-rate band available when a main home passes to direct descendants. Estates are far more likely to be affected than in the US.
• Australia: There is no federal inheritance or estate tax, though capital gains tax rules can apply to some inherited assets.

---

Frequently Asked Questions

What is the federal estate tax exemption for 2026?

It is $15,000,000 per person, or up to $30,000,000 for a married couple that elects portability. Estates below the exemption owe no federal estate tax.

Do my heirs pay income tax on an inheritance?

Generally no. Inherited cash and property are not treated as taxable income to the recipient, although income from inherited retirement accounts can be taxable when withdrawn.

What is the difference between estate tax and inheritance tax?

Estate tax is paid by the estate before assets are distributed. Inheritance tax is paid by the individual heir on what they receive, and only a few states levy it.

Does gifting money during my life avoid estate tax?

Gifts within the $19,000 per-recipient annual exclusion don't touch your exemption. Larger gifts are reported and reduce the exemption available at death, so they shift the tax rather than erase it.

Is the $15 million exemption going to change again?

The current law sets it permanently, with inflation indexing, but Congress can always amend it. Plan around today's rules and revisit your plan if the law changes.

---

Try It Yourself

My dad's estate owed nothing federally, but running the numbers is what let us sleep again. If you're not sure where you stand, start with the Estate Tax Calculator and enter your gross estate, debts, and marital status. Then check your whole picture with the Net Worth Calculator, and see how an inherited asset would be taxed if sold with the Capital Gains Tax Calculator. If you're still building toward a large estate, the 401(k) Calculator shows where your retirement savings are heading.