What Is the Estate Tax? Inheritance Tax Basics

The estate tax — sometimes called the "death tax" by its critics — is a federal tax on the transfer of wealth after someone dies. It's one of the most politically contentious taxes in America and one of the most misunderstood. Most people will never owe estate tax, but understanding how it works is important for anyone building wealth, because the exemption levels have changed dramatically over time and may change again.

This guide covers the mechanics of estate and inheritance taxes, current exemption levels, and basic strategies that families use to minimize the tax burden on wealth transfers.

How the Federal Estate Tax Works

When a person dies, their estate — the total value of everything they owned at death, including real estate, investments, bank accounts, retirement accounts, business interests, and personal property — is tallied up. Certain deductions are subtracted, including debts, funeral expenses, and property left to a surviving spouse or qualified charity. The remaining value is compared against the estate tax exemption.

If the estate's taxable value exceeds the exemption, the excess is taxed at a top rate of 40%. For 2026, the federal estate tax exemption is approximately $15 million per individual, or roughly $30 million for a married couple using portability (the ability for a surviving spouse to use the deceased spouse's unused exemption). This means that only estates valued above these thresholds owe any federal estate tax.

In practice, the estate tax affects a very small number of Americans. Fewer than 0.1% of estates owe any federal estate tax in a given year. However, the exemption amount is set by legislation and has fluctuated significantly — it was as low as $675,000 in 2001. Changes in tax law could dramatically expand who's affected, which is why estate planning matters even for people well below the current threshold.

Estate Tax vs. Inheritance Tax

The federal government levies an estate tax, which is paid by the estate before assets are distributed to heirs. Several states impose their own estate taxes, often with much lower exemption thresholds — some as low as $1 million. If you live in a state with its own estate tax, your estate may owe state taxes even if it's well below the federal exemption.

An inheritance tax is different: it's paid by the person receiving the inheritance, not by the estate. There is no federal inheritance tax, but six states currently impose one. The rate typically depends on the relationship between the deceased and the heir — spouses and direct descendants usually pay little or nothing, while more distant relatives and unrelated beneficiaries pay higher rates.

You could potentially owe both. If you live in a state with an estate tax and inherit from someone in a state with an inheritance tax, both could apply. This complexity is one reason estate planning is more than just writing a will.

The Step-Up in Basis

One of the most important tax provisions related to inheritance is the "step-up in basis." When you inherit an asset, its tax basis — the value used to calculate capital gains when you sell — is "stepped up" to its fair market value at the date of death. This effectively eliminates all the capital gains that accumulated during the deceased person's lifetime.

For example, if your parent bought stock for $50,000 decades ago and it's worth $500,000 when they die, your basis in that stock is $500,000 — not $50,000. If you sell it immediately, you owe zero capital gains tax. The $450,000 in unrealized gains is permanently erased.

This provision has enormous implications for investment strategy. It creates an incentive for older investors to hold appreciated assets rather than sell them, because the capital gains tax disappears at death. For families with significant unrealized gains, the step-up in basis can be worth far more than the estate tax exemption itself.

Basic Estate Planning Strategies

The simplest strategy is the annual gift tax exclusion. Each year, you can give up to $18,000 (in 2024, indexed for inflation) per recipient to as many people as you want without filing a gift tax return or reducing your lifetime exemption. A married couple with three children and six grandchildren could transfer $324,000 per year out of their estate simply through annual gifts.

Irrevocable trusts remove assets from your taxable estate. Once you transfer property into an irrevocable trust, it's no longer yours for estate tax purposes — even though the beneficiaries you've designated will eventually receive the assets. Various trust structures serve different purposes: bypass trusts, generation-skipping trusts, charitable remainder trusts, and others address specific planning goals.

Life insurance can provide liquidity to pay estate taxes without forcing heirs to sell inherited assets. When held in an irrevocable life insurance trust (ILIT), the death benefit isn't included in the estate, providing tax-free cash that heirs can use to cover estate taxes, legal fees, or other settlement costs.

Charitable giving through vehicles like donor-advised funds, charitable remainder trusts, or direct bequests reduces the taxable estate while supporting causes you care about. Assets left to qualified charities are fully deductible from the estate, potentially eliminating estate tax entirely for philanthropically inclined individuals.

Why Estate Tax Planning Matters for Investors

Even if your estate is well below current exemption levels, estate planning principles should inform your investment decisions. The step-up in basis affects which assets to hold and which to sell during your lifetime. The choice between Roth and traditional retirement accounts has estate tax implications. The structure of your investment accounts — individual, joint, trust, or beneficiary-designated — determines how assets pass to heirs and what taxes they'll owe.

Building a portfolio of high-quality, appreciating assets is itself an estate planning strategy. Companies with durable competitive advantages that compound value over decades create wealth that benefits not just you but future generations — especially when combined with the step-up in basis that eliminates capital gains at death.