How to Calculate Estate Tax
Estate tax owed equals the tax rate times the estate's value above the exemption, so only the excess is taxed and never the whole estate.
The Estate Tax formula
Calculator
Enter the gross estate, exemption, deductions and rate to get the taxable estate, the tax owed and the effective rate.
Everything owned at death: property, investments, business interests and life insurance the estate controls.
Value the law leaves untaxed. Set by statute, so use whatever figure the question gives.
Debts, settlement costs and anything left to a spouse or to charity.
The rate charged on value above the exemption.
The estate settles a bill of $2.4 million before anything reaches the heirs.
- Taxable estate
- $6 million
- Value left for heirs
- $11.6 million
- Effective rate on the whole estate
- 16%
- Value shielded from tax
- $9 million
Only $6 million of the estate sits above the exemption once deductions are out, and that is the whole tax base.
Heirs receive $11.6 million, which is the estate after deductions have been paid out and the tax settled.
The bill works out to 16% of the full estate, below the stated rate because the exemption is subtracted first.
The exemption and deductions together keep $9 million out of the tax base.
How to calculate Estate Tax, step by step
- 1Total the gross estate. Add the market value of everything the person owned at death: property, investments, business interests, and life insurance the estate controls.
- 2Subtract the deductions. Take out debts, funeral and settlement costs, and anything left to a spouse or to charity. Those amounts leave the estate before any tax is figured.
- 3Subtract the exemption. Only value above the exemption threshold is taxable, so an estate below the threshold owes nothing at all. Thresholds are set by statute and change over time.
- 4Apply the rate to what is left. Estate tax owed = rate × taxable estate. Divide that bill by the gross estate to get the effective rate, which always lands below the statutory rate.
Worked example: Estate Tax
Take an illustrative estate tax with an $8 million exemption and a 40% rate. A person dies owning $15 million and the estate claims $1 million of deductions for debts and a charitable bequest. Taxable estate = 15 − 8 − 1 = $6 million. Tax owed = 0.40 × $6 million = $2.4 million. Heirs receive 15 − 1 − 2.4 = $11.6 million. The effective rate is 2.4 ÷ 15 = 16%, far under the 40% headline rate, because $9 million of the estate was shielded by the exemption and the deductions. The exemption and rate here are illustrative.
Estate Tax questions
Does the estate tax apply to the whole estate?
No, it applies only to the value left after deductions and the exemption. An estate below the threshold owes nothing, and an estate just above it is taxed on the sliver above the line rather than on everything it holds.
What is the difference between an estate tax and an inheritance tax?
An estate tax is paid by the estate before assets are handed out, while an inheritance tax is paid by each heir on what that heir receives. The first is billed once on the whole estate, the second is billed separately to every beneficiary.
Why is the effective rate lower than the statutory rate?
Because the exemption and deductions come out first, so the stated rate touches only the leftover slice. Dividing the bill by the full estate then gives a smaller percentage than the rate written in the law.
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