Estate Tax Calculator

Federal estate tax only applies to a small fraction of estates — the current exemption is $13.61 million per individual, meaning most people’s estates owe nothing at all at the federal level. This calculator estimates federal estate tax for estates above that threshold, using the current exemption and the top marginal rate, but it deliberately simplifies real tax law enough that it should be treated as a rough planning estimate, not a substitute for advice from an estate attorney or tax professional.

How the Estate Tax Calculator Works

Enter the gross estate value, subtract any debts and expenses, and the calculator applies the current federal exemption ($13,610,000 for 2024) to find the taxable estate, then applies a flat 40% rate to whatever remains above that exemption. This produces a straightforward, easy-to-follow estimate, but it’s a meaningful simplification of the actual federal estate tax structure, which is explained below.

An Important Simplification: Real Federal Estate Tax Is Graduated, Not Flat

This calculator applies a flat 40% rate to the entire taxable amount above the exemption, but the actual federal estate tax schedule is graduated, starting at 18% for the smallest taxable amounts and rising in steps up to a maximum of 40% for amounts above roughly $1 million in taxable estate value. In practice, because the exemption itself is so large ($13.61 million), most taxable estates that exceed it also comfortably exceed the point where the graduated brackets have already climbed to the 40% top rate — which is exactly why this simplified flat-rate approach produces a reasonably close estimate for many large estates, even though it isn’t the literal bracket-by-bracket calculation the IRS actually applies. For an estate only modestly above the exemption threshold, the graduated brackets could produce a somewhat lower actual tax than this calculator’s flat-rate estimate suggests.

The Bigger Gap: This Calculator Does Not Include State Estate or Inheritance Tax

This is the single most important limitation to understand before relying on this calculator for any real planning purpose. Several US states impose their own estate tax, inheritance tax, or both — entirely separate from and in addition to the federal tax this calculator estimates — and state exemption thresholds are frequently dramatically lower than the federal exemption, in some cases as low as $1 million or even less. This means an estate that owes zero federal estate tax under the $13.61 million federal exemption could still owe a substantial state-level estate or inheritance tax if the deceased lived in (or owned property in) a state that taxes estates at a much lower threshold. Because which states impose these taxes, at what thresholds, and at what rates changes over time through state legislation, this calculator cannot account for state-level tax at all — checking your specific state’s current estate and inheritance tax rules separately is essential, not optional, for any realistic total tax picture.

The Exemption Amount Itself Changes Over Time

The federal estate tax exemption is periodically adjusted for inflation and has also been subject to significant legislative changes — including a scheduled reduction to roughly half its current level after 2025 under existing law, unless Congress acts to extend or change the current higher exemption before then. This calculator uses the current 2024 figure, which will not remain accurate indefinitely; always verify the current exemption amount for the specific year relevant to your planning, since a meaningful change to this single number can shift an estate from owing nothing to owing a substantial amount, or vice versa.

Why Gross Estate Value Includes More Than Just Bank Accounts

The gross estate for federal tax purposes includes far more than cash and investment accounts — it generally encompasses real estate, retirement accounts, life insurance proceeds (even though the insured doesn’t receive them directly), business interests, and most other assets owned at death, valued at their fair market value on the date of death rather than their original purchase price. This broad definition is a common source of underestimation: someone might not think of their life insurance payout or retirement account balance as part of their “estate” in casual conversation, but both typically count toward the gross estate figure this calculator’s exemption is measured against.

Retirement Accounts and Their Own Distribution Rules

Retirement accounts included in an estate carry their own separate set of rules around required distributions to heirs, distinct from estate tax itself. If you’re working through retirement account planning as part of a broader estate picture, the RMD Calculator handles required minimum distribution calculations for retirement accounts, which is a related but separate consideration from the estate tax calculation this tool performs.

Planning for Retirement Savings More Broadly

Estate tax planning often intersects with broader retirement planning, since the size of retirement accounts and other long-term savings directly affects total estate value. The Retirement Calculator and related tools like the 401K Calculator can help project how retirement savings might grow over time, which feeds indirectly into long-term estate size projections, even though they don’t calculate estate tax themselves.

Income Tax Is a Separate Consideration From Estate Tax

Estate tax and income tax are entirely different taxes with different triggers, exemptions, and rules — an estate can owe no estate tax at all while heirs still owe income tax on certain inherited assets (like a traditional retirement account) as they’re distributed. The Income Tax Calculator handles the separate income tax calculation, which is worth considering independently from the estate tax question this calculator addresses.

This Calculator Is a Starting Point, Not a Final Answer

Given the significant simplifications described above — a flat rate instead of graduated brackets, no state estate or inheritance tax, and an exemption figure that changes over time — this calculator is best used as a rough, first-pass estimate to understand whether estate tax is even a relevant concern at a given estate size, not as a number to rely on for actual filing, planning documents, or major financial decisions. Any estate large enough to be meaningfully affected by estate tax should work directly with an estate attorney or tax professional who can account for the full, current federal rules alongside your specific state’s requirements.

Frequently Asked Questions

Does this calculator include state estate tax?

No — it estimates federal estate tax only. Several states impose their own separate estate or inheritance tax with exemption thresholds often far lower than the federal exemption, so an estate owing no federal tax could still owe significant state-level tax. Check your specific state’s rules separately.

Is federal estate tax really a flat 40% rate?

No — this calculator simplifies to a flat 40% for ease of estimation, but the actual federal rate schedule is graduated, starting at 18% and rising in steps to a 40% maximum. Because the exemption is so large, many taxable estates that exceed it are already well into the top bracket, making the flat-rate simplification reasonably close for large estates, though less precise for estates only modestly above the exemption.

What counts toward the gross estate for tax purposes?

Generally, far more than bank and investment accounts — real estate, retirement accounts, life insurance proceeds, and business interests are typically included, valued at fair market value on the date of death, not original purchase price.

Will the federal estate tax exemption stay at its current level?

Not necessarily. The exemption is subject to inflation adjustments and legislative changes, including a scheduled reduction to roughly half its current level after 2025 under existing law unless Congress extends or modifies it. Always verify the current exemption for the specific year relevant to your planning.

Should I use this calculator instead of consulting an estate attorney?

No — this calculator is meant only as a rough, first-pass estimate to understand whether estate tax might be relevant to your situation. Given its simplifications around tax brackets and its complete exclusion of state-level estate and inheritance tax, anyone with an estate potentially subject to meaningful tax should consult an estate attorney or tax professional for an accurate assessment.