DayCents

Taxes

Estate Tax Calculator

The federal estate tax exemption is very high, so the vast majority of estates owe nothing federally. But a dozen-odd states levy their own estate tax at far lower thresholds, and a large estate above the federal exemption is taxed at 40% on the excess.

Formula shown below · Tested against worked examplesHow we verify

Everything you own — property, investments, business interests, life insurance you control.

Mortgages, funeral and administration costs, deductible from the estate.

Anything left to a US-citizen spouse passes estate-tax-free.

Per person for 2026 — confirm the current figure, it has changed with recent law.

0 if your state has no estate tax.

0 if your state has no estate tax. Rates run roughly 10–20%.

Estimated estate tax: $3,900,000

Estimated estate tax

$3,900,000

An effective 19.5% of the gross estate.

Estate tax is highly reducible with planning: the unlimited marital deduction, lifetime gifting, irrevocable trusts, and charitable bequests all shrink the taxable estate. These figures are a starting point for a conversation with an estate attorney, not a settled bill.

Taxable estate
$19,500,000
Above the federal exemption
$4,500,000
Federal estate tax (40%)
$1,800,000
State estate tax
$2,100,000
Net to heirs
$15,600,000
Gross estate$20M
To heirs$15,600,00078%
Federal tax$1,800,0009%
State tax$2,100,00011%
Debts and expenses$500,0003%

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Compare scenariosTry three values of one input
Estate Tax Calculator results for three values of Gross estate
Gross estate
Estimated estate tax$2,860,000$3,900,000+$1,040,000$4,940,000+$2,080,000
Taxable estate$17,500,000$19,500,000+$2,000,000$21,500,000+$4,000,000
Above the federal exemption$2,500,000$4,500,000+$2,000,000$6,500,000+$4,000,000
Federal estate tax (40%)$1,000,000$1,800,000+$800,000$2,600,000+$1,600,000
State estate tax$1,860,000$2,100,000+$240,000$2,340,000+$480,000
Net to heirs$14,640,000$15,600,000+$960,000$16,560,000+$1,920,000

Every other input stays at the value you set above — currently $20,000,000 for gross estate. Differences are measured against the first column.

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How this calculator works

The taxable estate is the gross estate minus debts, expenses, and anything left to a spouse. Federal tax is 40% of the amount above the federal exemption; state tax applies your state's rate to the amount above its own, lower exemption. Net to heirs is the gross estate less debts and total tax.

The federal exemption and state figures are inputs because they change with legislation and vary by state — verify the current amounts. The federal tax is modelled as a flat 40% on the excess, which is close to the true graduated schedule at the top. Gift-tax history, generation-skipping tax, and trust structures are not modelled; this is a planning estimate.

Formula

Taxable estate = Gross − Debts − Marital deduction Federal tax = max(0, Taxable − Exemption) × rate State tax = max(0, Taxable − State exemption) × state rate
Gross
Everything owned at death, at fair market value
Marital deduction
Transfers to a surviving spouse, generally unlimited
Exemption
The federal exclusion amount in force

Portability between spouses is not applied automatically — it requires a timely filed return. Several states levy their own estate or inheritance tax at thresholds far below the federal one.

What this assumes

  • The federal exemption as entered. It is scheduled to change, and several states levy their own estate or inheritance tax at far lower thresholds.
  • Portability between spouses is not applied automatically — it requires a timely filed return to claim.
  • Trusts, gifting strategies and business valuation discounts are excluded. This is an estimate of exposure, not a plan.

What changes this number

The exemption in force at death
Not knowable in advance, and the single largest uncertainty in any estate projection.
State of residence
Several states tax estates far below the federal threshold, which catches families who assumed they were well under.
Lifetime gifting
Reduces the taxable estate, and annual exclusion gifts do not consume the lifetime exemption.

A worked example

Take the $20m estate, taxable state scenario. These figures are produced by the calculator above, not written alongside it, so they always match what the tool returns.

What you enter

Gross estate
$20,000,000
Federal exemption
$15,000,000
State exemption
$2,000,000
State estate tax rate
12%

What it returns

Estimated estate tax
$3,900,000
Taxable estate
$19,500,000
Above the federal exemption
$4,500,000
Federal estate tax (40%)
$1,800,000
State estate tax
$2,100,000

Estate tax is highly reducible with planning: the unlimited marital deduction, lifetime gifting, irrevocable trusts, and charitable bequests all shrink the taxable estate. These figures are a starting point for a conversation with an estate attorney, not a settled bill.

Sources

This calculator uses no external data — the result follows entirely from the formula above and the values you enter, so there is nothing to cite beyond the arithmetic.

Calculator last reviewed August 9, 2026. How we verify

Try an example

Frequently asked questions

How much can you inherit without paying estate tax?

Federally, a great deal — the exemption is in the eight-figure range per person and portable between spouses, so most estates owe nothing. But a dozen-plus states impose their own estate or inheritance tax at thresholds as low as $1–2 million, which catches far more families.

What is the federal estate tax rate?

40% on the amount above the exemption. It is a flat top rate applied to the excess, not the whole estate — an estate a million dollars over the exemption owes roughly $400,000, not 40% of everything. Only the portion above the exemption is taxed.

What is the marital deduction?

Anything left to a US-citizen spouse passes free of estate tax, without limit. It defers the tax rather than eliminating it — the assets are taxed in the surviving spouse's estate later — but combined with exemption portability, it lets a couple pass roughly double the individual exemption tax-free.

Which states have an estate or inheritance tax?

Around a dozen states plus DC levy an estate tax, and a handful impose an inheritance tax paid by the recipient. Thresholds and rates vary widely, and some are far below the federal exemption. Because this is where most estate tax is actually owed, your state rules matter more than the federal ones for typical estates.

How can estate tax be reduced?

Through the marital deduction, annual and lifetime gifting that moves assets out of the estate, irrevocable trusts, charitable bequests, and life insurance held in a trust so it is not counted. These are the province of an estate attorney — the potential savings on a taxable estate far exceed the planning cost.

Is the federal exemption permanent?

It has changed repeatedly with legislation and is indexed for inflation, so the figure moves. This calculator takes the exemption as an input for that reason — enter the current amount rather than assuming, since a large change can flip an estate from taxable to exempt or back.

Disclaimer: DayCents provides this calculator for educational purposes only. Results are estimates based on your inputs and the stated assumptions — they are not financial advice, a quote, or an offer of credit. Consult a qualified financial professional before making major money decisions.