Key Takeaways
- The 2024 federal estate tax exemption is $13.61 million per individual. It drops sharply after 2025 unless Congress acts.
- Failing to account for gifts made during your lifetime can pull your estate over the threshold and trigger a 40% tax bill your heirs never saw coming.
- Add up your gross estate, subtract allowable deductions, compare to the current exemption, and apply the 40% rate to anything above it.
- Tool: Run your estate tax estimate now →
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Most People Think This Doesn't Apply to Them
That's the problem.
You don't need a yacht or a private jet for federal estate tax to matter. A paid-off house in a hot market, a 401(k) that grew for 30 years, a small business you built from nothing. Those add up faster than people expect.
The federal estate tax applies to the total value of everything you own at death. Real estate, investment accounts, retirement funds, life insurance proceeds, business interests. All of it counts.
In 2024, the federal exemption sits at $13.61 million per person. That sounds like a lot. But here's the catch nobody talks about: that exemption is scheduled to drop by roughly half after December 31, 2025. If Congress doesn't act, the exemption falls to around $7 million (adjusted for inflation). Millions of Americans who feel safe right now won't be.
And the tax rate on anything above the exemption? A flat 40%.
That's not a typo.
Step One: Calculate Your Gross Estate
The IRS requires you to add up the fair market value of everything you own on the date of death. This includes:
- Your home and any other real property
- Bank accounts and CDs
- Brokerage and investment accounts
- IRAs, 401(k)s, and other retirement accounts
- Life insurance proceeds (if you own the policy)
- Business interests and partnerships
- Vehicles, jewelry, art, and collectibles
- Money owed to you
Key word: fair market value. Not what you paid. Not sentimental value. What a willing buyer would pay a willing seller today.
A house you bought for $180,000 in 1995 might be worth $900,000 now. Your $400,000 life insurance policy gets included at face value if you're the policy owner. A business you think is worth $500,000 might appraise at $1.2 million.
These numbers catch people off guard every single time.
Step Two: Add Back Taxable Gifts
Here's where most people slip up.
If you gave away money during your lifetime that exceeded the annual gift exclusion ($18,000 per recipient in 2024), you filed a gift tax return. Those gifts didn't cost you tax then. But they reduce your lifetime exemption.
The estate tax and gift tax share one unified exemption. Think of it as a single bucket. Every taxable gift you made chips away at that bucket. Whatever's left is what shields your estate at death.
Say you gifted $500,000 above the annual exclusion to your kids over the years. You used $500,000 of your lifetime exemption already. Your remaining exemption at death is $13.11 million, not $13.61 million.
Most people have no idea those gifts are being tracked this way.
Step Three: Subtract Allowable Deductions
Not everything in your gross estate gets taxed. The IRS lets you subtract:
- The marital deduction: everything left to a surviving U.S. spouse passes estate-tax-free. No limit.
- Charitable deductions: assets left to qualifying charities reduce your taxable estate dollar for dollar.
- Debts and liabilities: your mortgage balance, credit card debt, loans. These reduce the gross estate.
- Administrative expenses: funeral costs, executor fees, legal fees.
What's left after these deductions is your taxable estate.
Step Four: Compare to the Exemption and Apply the Rate
Here's the actual math.
Take your taxable estate. Subtract your remaining lifetime exemption (after accounting for prior gifts). If the result is zero or negative, your estate owes no federal estate tax. If the result is positive, you owe 40% of that amount.
That's it. The federal estate tax has a single rate for amounts above the threshold: 40%.
Worked Example One: The Retired Couple
Meet David and Susan. They've been married 42 years. David dies first in 2024.
David's assets at death:
- Home (jointly owned): $850,000, so David's half is $425,000
- IRA: $1,100,000
- Brokerage account: $480,000
- Life insurance (policy owned by David): $500,000
- Car and personal property: $45,000
David's gross estate: $2,550,000
David leaves everything to Susan. The unlimited marital deduction eliminates his entire taxable estate. His estate owes zero federal estate tax.
But here's the part couples miss. Susan now holds all those assets plus her own. When Susan dies with a $5.1 million estate, the calculus changes. If the exemption has dropped to $7 million by then, she still clears the threshold, but barely. Add any inheritance she received from a parent or any business interest, and suddenly her estate might be taxable.
The strategy here: David's executor should elect portability. That moves David's unused exemption to Susan. She gets $13.61 million plus her own exemption. That's over $27 million in combined protection, enough to shield almost any middle-class estate.
Portability has to be elected on a timely filed estate tax return. Miss the deadline and the unused exemption is gone forever.
Worked Example Two: The Single Business Owner
Meet Patricia. She's 68, never married, and built a regional landscaping company from scratch.
Patricia's assets:
- Business (professionally appraised): $4,200,000
- Primary residence: $780,000
- Vacation cabin: $310,000
- Investment accounts: $1,400,000
- IRA: $620,000
- Life insurance (owned by Patricia): $1,000,000
- Taxable gifts made in prior years above exclusion: $400,000
Patricia's gross estate: $8,310,000
She has no spouse. No charity deductions planned. Debts total $90,000.
Taxable estate: $8,310,000 minus $90,000 equals $8,220,000.
Remaining exemption: $13,610,000 minus $400,000 in prior taxable gifts equals $13,210,000.
$8,220,000 is below $13,210,000. Patricia's estate owes zero federal estate tax in 2024.
But here's the scenario that should keep Patricia's attorney awake at night. If the exemption drops to $7 million in 2026 and Patricia dies in 2027, her taxable estate could easily exceed the exemption. A $1.22 million taxable amount multiplied by 40% equals $488,000 in federal estate tax. Her heirs write a check to the IRS before they touch a dollar of inheritance.
Patricia should look at transferring business interests now, while the high exemption still exists.
State Estate Taxes: A Hidden Layer
Federal tax isn't the only concern.
Twelve states plus Washington D.C. impose their own estate taxes. Some kick in at just $1 million. Massachusetts and Oregon have exemptions that low. The rates vary, but they stack on top of any federal liability.
If you own property in multiple states, each state can potentially tax the real property located within its borders. A vacation home in Oregon plus a primary residence in Florida plus a brokerage account creates a multistate situation that needs real planning.
The 2025 Cliff Is Real
The Tax Cuts and Jobs Act of 2017 doubled the estate tax exemption temporarily. That provision expires December 31, 2025.
Unless Congress passes new legislation, the exemption reverts to roughly $7 million per person (indexed for inflation from the pre-2018 baseline). Married couples who relied on the high exemption to feel safe may suddenly find themselves in taxable territory.
Anyone with a taxable estate between $7 million and $13.61 million has a closing window. Strategies like irrevocable trusts, family limited partnerships, and spousal lifetime access trusts take time to set up. Waiting until 2026 is too late.
Calculate Your Number Before It's Too Late
The math itself isn't complicated. Add everything up. Subtract debts and deductions. Compare to the exemption. Multiply any excess by 40%.
The hard part is knowing all the pieces: current asset values, prior taxable gifts, state-specific rules, and how the exemption might shift.
Start with a clear number today. Use the CalcMoney estate tax calculator to build your estimate in minutes. Plug in your assets, enter any prior taxable gifts, and see exactly where you stand under both the current exemption and the post-2025 reduced threshold.
Knowing the number doesn't obligate you to do anything. But not knowing it? That's how families lose hundreds of thousands of dollars they didn't have to lose.
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