Estate Tax Calculator

How this result is built

Apply a 40% top rate to the part of an estate above an exemption you can edit.

Federal estate tax is aimed at the part of an estate above the basic exclusion. The top rate is 40%. The exemption field defaults to $15 million so you can see the shape of the tax, and it is editable because exclusion amounts are set by statute and inflation adjustments. Confirm the current IRS figure before you treat the result as a planning number.

What the opening example is for

Portability between spouses, lifetime gifts, deductions, and state estate tax are not in the model. Most estates never reach the federal exclusion. The calculator exists so the threshold is visible.

The walkthrough below uses the numbers already sitting in Estate Tax Calculator. Press Calculate and the headline should match this page. Then put your own figures in. The math does not run until you press the button, and Clear hides the result.

What each field is doing

The “Taxable estate” line on Estate Tax Calculator starts at $18,000,000.00. The other fields stay put while you change this one. That is the clean way to see what this line is doing inside the result.

Estate Tax Calculator treats “Exemption” as its own entry, and the form opens with $15,000,000.00. Edit this to the current IRS basic exclusion before you rely on it. If the label is a rate, type the annual figure the contract uses. If it is money, type the amount that will actually move, not a rounded hope.

The opening result, line by line

Press Calculate on the opening form and Rough federal estate tax is $1,200,000.00. That is the number the rest of this section is talking about.

Exemption used is $15,000,000.00 when you run the opening figures on Estate Tax Calculator. That line is part of the same calculation as the headline. It is not a second balance you can spend on top of the result. Change one input and press Calculate if you want to see whether this line moves.

On this opening pass, taxable estate is $3,000,000.00. That line is part of the same calculation as the headline. It is not a second balance you can spend on top of the result. Change one input and press Calculate if you want to see whether this line moves.

How those lines were produced

The top federal estate rate is 40%. The default exemption is $15 million and can be edited. Portability, gifts, and state estate tax are not modeled.

A second pass changes only “Taxable estate”, from $18,000,000.00 to $19,800,000.00. Rough federal estate tax moves from $1,200,000.00 to $1,920,000.00. Nothing else on the form was edited, so the gap between those two results is the effect of that one field on Estate Tax Calculator. If the gap is tiny, this page is not very sensitive to that entry. If the gap is large, get that entry from a document before you plan around the result.

What this page will not claim

Estate Tax Calculator is a federal estimate from the brackets and inputs written on the page. It is not a tax return. Credits, state tax, and items you do not type are simply absent. Confirm the figure with a filing source before you send money.

Estate Tax Calculator stops at its own formula. When the next question is different, open Net Worth Calculator (What you own minus what you owe.); Income Tax Calculator (2026 federal brackets, without pretending to be a tax return.); Retirement Calculator (Savings at retirement, next to the nest egg spending implies.). Do not add those results to this one as if they were the same kind of dollar.

Check the result before you use it

Start on Estate Tax Calculator by reading the labels, not the headline. The opening labels are Taxable estate ($18,000,000.00), Exemption ($15,000,000.00). If a label is not the fact you have, the result cannot turn into that fact later. The illustration on the form lands on $1,200,000.00. When you press Calculate and see that same figure, the button and this explanation are using one formula.

Change one field at a time. Write down the headline, edit a single line, and press Calculate again. A large jump means that line carries the result. A line that does not move is a line the formula ignores, which is a reason to confirm you opened the right page. Estate Tax Calculator is built for one job: A rough federal estate tax above the exemption. The description on the page says the same thing in a sentence: Apply a 40% top rate to the part of an estate above an exemption you can edit.

When the paperwork disagrees

Then hold the headline next to a source outside the site. That source might be a loan estimate, an account statement, a pay stub, or the public limit named in the methodology. A few cents of difference on a long schedule is ordinary rounding. A different rate, a fee you never typed, or a tax the form does not ask for is not rounding. Correct the input. Do not average the page with the paperwork.

When the outside source still disagrees, Estate Tax Calculator has reached the edge of what it will claim. It will not phone a lender, pull a county record, or apply a credit you left blank. Send the calculator name, every input, and the result you expected through the contact page if you think the formula itself is wrong. Until that is settled, read $1,200,000.00 as the output of the fields above and nothing else.

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