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Estate Tax Calculator

Estimate federal and state estate tax for 2026.

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Total estate tax
Taxable estate
Federal estate tax (40%)
State estate tax
Federal exemption remaining
Effective rate
State notes

Educational estimate using 2026 figures. Not tax or legal advice.

How it works

We add prior taxable gifts to your gross estate, subtract marital, charitable, debt and expense deductions for your taxable estate, apply the $15M federal exemption at 40%, then add any state estate tax based on your state's exemption and rate.

2026 federal exemption: $15,000,000 per person ($30M per married couple), with a 40% top rate on the excess.

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How estate tax actually works

Estate tax is only charged on the part of an estate above the exemption — not the whole thing. For 2026 the federal exemption is $15 million per person, and only the excess is taxed, at rates topping out at 40%. Married couples can effectively shield $30 million by combining exemptions through portability.

Don’t forget your state

This is where families get caught off guard. A dozen states plus Washington, D.C. levy their own estate tax — and several start far below the federal line. Massachusetts and Oregon tax estates over just $1–2 million. So an estate that owes the IRS nothing can still face a sizable state bill.

What lowers the taxable estate

Lifetime gifting also helps — see the gift tax calculator for how the annual exclusion and lifetime exemption interact.

Good to know

FAQs

What is the 2026 federal estate tax exemption?

$15 million per person (about $30 million for a married couple), made permanent under 2025 tax law.

What is the federal estate tax rate?

Up to 40% on the amount of the taxable estate above the exemption.

Which states have an estate tax?

Twelve states plus Washington, D.C. — including MA, OR, WA, NY, IL and MN — often with much lower exemptions.

What reduces the taxable estate?

The unlimited marital deduction, charitable bequests, and debts and administration expenses.

Is this tax advice?

No — it’s an educational estimate. Consult an estate attorney or tax professional.