Estate Tax Calculator

Use this free estate tax calculator to estimate a rough federal estate tax amount from gross estate, deductions, prior taxable gifts, and the 2026 basic exclusion.

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Formula steps Estimate limits shown Examples included Private history
Simplified federal estate tax$1,000,000.00

$18,000,000 estate less deductions and 2026 exclusion

Deductions entered
$500,000.00
Estate before exclusion
$17,500,000.00
Remaining basic exclusion
$15,000,000.00
Above exclusion
$2,500,000.00

Estate tax is complex. This page is only a rough planning screen before professional estate and tax advice.

Formula steps

  1. Subtract debts, expenses, charitable bequests, and spouse transfers from the gross estate.
  2. Reduce the 2026 federal basic exclusion by prior taxable gifts you entered.
  3. Apply a simplified 40% federal top-rate estimate to the amount above the remaining exclusion.

How to use the estate tax calculator

  1. Enter the requested dollar amounts, rates, terms, tax settings, or contribution details.
  2. Use rates as percentages, such as 6.5 for 6.5%, and check whether a field asks for a monthly or annual amount.
  3. Press the calculate button to see the answer, supporting metrics, and formula steps.
  4. Use the result as a planning estimate only, then copy it if the assumptions look right.

Common uses

Screen whether a large estate might exceed the 2026 federal exclusion.

See how debts, charitable bequests, or spouse transfers change the rough taxable amount.

Account for prior taxable gifts at a high level.

Prepare better questions for an estate attorney or tax professional.

Examples

$18M estate $18,000,000 estate with $500,000 deductions

Simplified tax above exclusion

Charitable bequest $22M estate and $2M charity

Lower taxable amount

Prior gifts $16M estate with prior taxable gifts

Reduced remaining exclusion

Frequently asked questions

Plain-language answers about when to use the estimate, what your numbers mean, what is left out, and how privacy works.

When should I use the Estate Tax Calculator?

Use it for early planning and side-by-side comparisons, especially for tasks like these: Screen whether a large estate might exceed the 2026 federal exclusion. See how debts, charitable bequests, or spouse transfers change the rough taxable amount. Treat the answer as a planning estimate, not a final quote.

What is the Estate Tax Calculator doing with my numbers?

In plain language: The calculator subtracts entered debts, charitable bequests, and spouse transfers, reduces the 2026 basic exclusion by prior taxable gifts, then applies a simplified 40% top-rate estimate above the remaining exclusion. If the result seems too high or too low, first check whether each field expects a monthly amount, annual amount, dollar value, or percent.

What does this estimate leave out?

Estate tax is complex. This estimate does not include state estate tax, generation-skipping tax, gift tax calculations, portability, valuation discounts, trusts, elections, or legal advice. Real finance decisions can also depend on fees, timing, local rules, credit details, and provider-specific terms.

Does the site save my finance inputs?

No. The calculator runs in your browser tab. Recent answers stay only on the page while you use it, and they are not sent to a server.

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