The federal estate tax exemption is the amount of wealth you can pass to heirs without triggering federal estate taxes. Starting January 1, 2026, that exemption is $15 million per individual—or $30 million for a married couple using portability—thanks to the One Big Beautiful Bill Act signed into law on July 4, 2025. This represents a permanent increase from the previous $13.99 million exemption in 2025, and it eliminates the sunset clause that would have dropped the exemption back to $5 million per person (adjusted for inflation) had Congress not acted. For most people, this news is straightforward: your estate is almost certainly under the exemption threshold, so federal estate taxes won’t affect you. But if you own a business, real estate portfolio, or have significant investments, the 2026 exemption matters enormously.
Consider a couple who owns a $20 million family business and commercial properties worth another $15 million—their $35 million estate would owe a 40% federal estate tax on the $5 million excess if they didn’t have access to the expanded exemption. That same couple now has $30 million of combined exemption, reducing their taxable estate significantly. The permanence of this exemption is the critical shift. Prior to 2025, estate planners operated under the shadow of the scheduled sunset, forcing families to make urgent decisions about trusts, gifting strategies, and wealth transfers before 2026. That pressure has eased. Going forward, the $15 million baseline will be indexed annually for inflation starting in 2027, giving families predictability they haven’t had in decades.
Table of Contents
- How Does the Federal Estate Tax Exemption Work?
- The Permanent Exemption Means Certainty—But Inflation Adjustments Still Matter
- Who Actually Pays the Estate Tax?
- The Gift Tax Exemption Offers Planning Opportunities Separate from Estate Tax
- Estate Tax Planning Becomes Urgent Again for the Wealthy
- State Estate Taxes and Your State of Residence
- Looking Ahead: What Could Change in Future Years
- Conclusion
How Does the Federal Estate Tax Exemption Work?
The exemption functions as a threshold: your taxable estate equals your gross estate minus deductions and the exemption amount. If your estate lands beneath the exemption, you owe zero federal estate tax, regardless of size. If it exceeds the exemption, every dollar above it is taxed at a flat 40% rate. This is a considerable rate—the highest income tax bracket is 37%, so estate tax can exceed your lifetime income tax burden. Here’s a concrete example. A widow dies in 2026 with an estate valued at $18 million, consisting of retirement accounts, stock holdings, and a primary residence. Her exemption is $15 million.
Her taxable estate is $3 million ($18 million minus the $15 million exemption). The federal estate tax owed is $1.2 million (40% of $3 million). Her heirs receive $16.8 million after the tax. Without the exemption, they would owe 40% on the full $18 million, leaving only $10.8 million. The exemption is separate from the annual gift tax exclusion, which allows you to give away $19,000 per recipient per year in 2026 (or $38,000 for married couples) without using any exemption. Many families use both tools strategically: they gift money annually to use the annual exclusion, and they preserve their exemption for larger transfers or for protection at death. The combination creates a powerful estate planning opportunity—you can move wealth out of your taxable estate during life while protecting your eventual inheritance from the 40% tax.
The Permanent Exemption Means Certainty—But Inflation Adjustments Still Matter
The permanence of the $15 million exemption is a historic shift in estate tax policy. For decades, the exemption fluctuated with congressional decisions and inflation. In 2001, it was $675,000. In 2017, under the Tax Cuts and Jobs Act, it jumped to $10 million (adjusted for inflation annually). Families lived with the knowledge that this amount was temporary—scheduled to sunset on January 1, 2026, reverting to $5 million per person unless Congress extended it. That sunset created urgency and uncertainty. The One Big Beautiful Bill eliminated that sunset permanently. Starting in 2027, the $15 million baseline will be indexed for inflation each year, rising alongside the cost of living.
This means the exemption will grow modestly every January to keep pace with economic conditions. For 2027 onward, the IRS will announce updated amounts much like it does for standard deductions and income tax brackets. While inflation adjustments are modest year to year, they compound over decades—someone planning a 30-year estate strategy can now rely on a growing exemption rather than a looming cliff. One important limitation: this permanence is only as permanent as the current law. While sunset clauses are eliminated, future Congresses could technically reduce the exemption through new legislation. However, the political consensus around the expanded exemption seems solid, and reversing a major tax benefit for wealthy families faces headwinds. For practical purposes, families should plan assuming the $15 million exemption (and annual inflation adjustments) will remain in place. The risk of another dramatic change is lower now than it was when the 2026 sunset was pending.
Who Actually Pays the Estate Tax?
The 40% estate tax is steep, but it affects far fewer people than commonly assumed. The IRS estimates that only about 0.1% of estates owe any federal estate tax in 2026—fewer than 1 in 1,000. The primary reason is the $15 million exemption. You need a sizable estate to trigger this tax, and most Americans’ estates fall well below the threshold. Who does face estate taxes? High-net-worth individuals, business owners, and families with real estate portfolios or significant investment holdings. A couple with a $40 million combined net worth has a $10 million taxable estate (since they share a $30 million exemption with portability).
At 40%, that’s $4 million in federal estate tax. A single individual with a $25 million estate owes nothing—they stay within the $15 million exemption. But a single person with a $50 million estate has a $35 million taxable estate and owes $14 million in federal estate tax. State estate taxes complicate the picture for some families. Connecticut, Illinois, Maryland, Massachusetts, Minnesota, New York, Oregon, Rhode Island, Vermont, and Washington all impose their own estate or inheritance taxes, with exemptions that are often lower than the federal level. A resident of Massachusetts with a $10 million estate might owe nothing in federal estate tax (thanks to the federal exemption) but could owe state estate tax if Massachusetts’s exemption is lower. These state-level taxes matter considerably for people living in high-tax states, making coordination between federal and state planning essential.
The Gift Tax Exemption Offers Planning Opportunities Separate from Estate Tax
Beyond the estate tax exemption itself, federal law allows annual tax-free gifts. The 2026 annual exclusion is $19,000 per person, per recipient, per year. A wealthy parent can give $19,000 to each of their three adult children ($57,000 total) without filing a gift tax return or using any of their estate tax exemption. A married couple can give $38,000 per child. This annual exclusion is a powerful tool for people who want to transfer wealth during their lifetime and reduce their taxable estate. Someone with a projected $40 million estate and a $15 million exemption faces a $25 million taxable estate—$10 million in estate tax. But if they gift $19,000 annually to each of, say, four children and their spouses (potentially eight people), that’s $152,000 per year moving outside their taxable estate.
Over 10 years, that’s $1.52 million removed tax-free. It doesn’t eliminate the tax problem entirely, but it reduces the burden significantly. The tradeoff is timing and complexity. Annual gifting requires discipline and planning—you must stay within the limits, track gifts carefully (and file a gift tax return Form 709 if you exceed the annual exclusion in a year), and remember that unused exclusions don’t carry forward. If you don’t gift $19,000 to your child in 2026, you can’t carry that $19,000 into 2027. Conversely, if you gift $25,000 to one person in a year, you’re using $6,000 of your lifetime exemption. For some families, this complexity is worth it; for others, it adds administrative burden without significant tax savings.
Estate Tax Planning Becomes Urgent Again for the Wealthy
While the permanent exemption removes the January 1, 2026 sunset panic, families with estates exceeding $15 million (or $30 million for couples) should view 2026–2027 as a critical planning window. The reason: we don’t know if this exemption will remain permanent in the long term. Elections and political changes happen. Some estate planners recommend that high-net-worth individuals complete major wealth transfer strategies—establishing trusts, making lifetime gifts, or funding dynasty trusts—while the exemption is elevated, creating a protective buffer. A significant limitation of the current exemption: it applies only to federal estate tax, not income tax. When you inherit assets, you typically receive a “step-up in basis,” meaning your cost basis is reset to the fair market value on the date of death.
If your parent paid $500,000 for a stock and it’s worth $2 million when they die, your basis is $2 million, and you owe no capital gains tax if you sell immediately. However, there’s ongoing discussion about potential changes to step-up in basis rules, which could increase the tax impact of inheritances. Families should consider both estate tax and capital gains tax implications when planning transfers. For business owners, the exemption enables more complex strategies. Owners of family businesses can use the exemption to transfer voting shares to children or into trusts, shifting future appreciation outside the taxable estate. Without this exemption, a family-owned company worth $25 million would create a $10 million taxable estate for the owner, forcing difficult choices between selling the business to pay taxes or using loans. The exemption makes business succession planning more feasible.
State Estate Taxes and Your State of Residence
Federal exemption doesn’t protect you from state-level taxes. Ten states plus the District of Columbia impose estate taxes, and some have significantly lower exemptions than the federal level. Connecticut, for instance, has an estate tax exemption of $12.92 million in 2024 (adjusted annually for inflation), which is lower than the current federal exemption. New York’s exemption is $6.58 million. Anyone with an estate exceeding their state’s exemption might owe both federal and state taxes. Planning around state estate taxes often involves considering your state of residence.
Some families explore relocation to non-estate-tax states if they have large estates. Others use trusts designed to minimize state taxes. For example, a Massachusetts resident with a $20 million estate and $15 million federal exemption faces a $5 million taxable estate federally—$2 million in federal tax. But Massachusetts has no state estate tax, so there’s no state bill. Compare that to a Connecticut resident with the same $20 million estate: they face $2 million in federal tax plus $1.4 million in Connecticut estate tax (calculated on the portion exceeding Connecticut’s exemption), totaling over $3.4 million in combined taxes. State tax considerations can be decisive in estate planning strategy.
Looking Ahead: What Could Change in Future Years
The permanence of the $15 million exemption represents a major victory for estate tax opponents, but estate tax policy remains a political battleground. Some observers expect that future administrations or Congresses might revisit the exemption—either raising it higher (some proposals have suggested increases to $25 million or more) or lowering it back toward historic norms. Unlike the 2026 sunset that was automatic, any future changes would require congressional action, which means significant political capital. Looking further ahead, inflation adjustments will gradually increase the exemption.
If inflation averages 2.5% annually, the $15 million baseline could grow to over $20 million by 2040. For families concerned about estate taxes, this is good news—the exemption’s growth partly insulates wealth creators from the 40% tax. However, wealthy families should not assume the exemption will continue rising indefinitely or remain at current levels. Any comprehensive tax reform, particularly around wealth taxation or capital gains treatment, could affect estate tax policy. The safest approach is to plan conservatively, complete wealth transfer strategies while flexibility exists, and revisit plans every few years as law and circumstances change.
Conclusion
The federal estate tax exemption of $15 million per individual (or $30 million for married couples with portability) represents both a relief and an opportunity. For the vast majority of Americans, it means estate taxes simply don’t apply—your heirs will inherit without a federal tax bill, regardless of your wealth. But for high-net-worth families, business owners, and individuals with significant real estate or investment portfolios, the exemption is a critical tool. The permanence of the exemption—no sunset clause, no scheduled reversion to $5 million—eliminates decades of uncertainty and allows for long-term planning.
If your estate is likely to exceed $15 million, or if you live in a state with its own estate tax, now is the time to consult with an estate planning attorney or tax professional. Review your current will, trust structure, and gift strategy to ensure they align with the 2026 rules. If you have business interests, real estate holdings, or are pursuing significant wealth accumulation, understand how federal and state estate taxes could affect your heirs. The exemption is generous by historical standards, but it’s not infinite—and 40% taxes on the excess are very real. With proper planning, you can navigate these rules confidently and ensure your legacy passes to your heirs as efficiently as possible.