The estimate begins with gross estate value
The Estate Tax Calculator starts with gross estate value. The IRS describes the gross estate as an accounting of property and certain interests owned at death, generally using fair market value.
Deductions reduce the estate before tax
The deductible expenses field can represent estate debts, administration costs, charitable transfers, spouse transfers, or other deductions included in the estimate.
Prior taxable gifts are added back
The calculator includes prior taxable gifts using exclusion because federal estate and gift tax planning can interact across lifetime transfers and transfers at death.
Portable exclusion is entered separately
The portable spouse exclusion field lets a user model additional exclusion available from a deceased spouse. The calculator accepts the amount entered and does not verify whether a valid portability election was made.
Death year chooses the basic exclusion
The solver has built-in federal basic exclusion amounts for recent supported years. The selected year controls the exclusion used in the estimate.
The 2026 federal threshold is built into the page
For 2026, the local calculator uses a federal basic exclusion amount of 15,000,000 dollars, matching the IRS filing-threshold table for estates of decedents dying in 2026.
Tax applies only above the exclusion in this model
The estimated taxable amount is the portion left after deductions, portability, gifts, and the basic exclusion are considered. If nothing remains above the exclusion, the estimated federal estate tax is zero.
The federal schedule is progressive
The calculator uses the federal estate-tax rate schedule on the taxable amount above the exclusion, with the top rate reached at higher taxable amounts.
State estate tax is not included
Some states have estate tax, inheritance tax, or other transfer rules. This page estimates U.S. federal estate tax only.
Gift tax questions can alter the estate picture
Lifetime gifts, gift-tax filings, annual exclusions, and generation-skipping transfer tax can change planning. This calculator uses one prior-taxable-gifts field and does not rebuild gift history.
Trusts require professional review
Revocable trusts, irrevocable trusts, life insurance trusts, grantor trusts, and special-needs planning can affect what is included or excluded. The page does not classify trust property.
Life insurance can be includible
Life insurance may be part of the gross estate depending on ownership and incidents of ownership. Entering or excluding it without review can change the estimate sharply.
Business interests need valuation work
Closely held companies, farms, partnerships, and real estate entities may require valuation discounts, appraisals, elections, or special rules. The calculator accepts a single gross value and deduction amount.
Real estate values should be current
A purchase price from years ago may not represent fair market value at death. Appraisals, comparable sales, and market conditions can matter.
Charitable transfers can affect deductions
Transfers to qualified charities may reduce taxable estate. The calculator can include those amounts in deductions, but it does not verify qualification.
Marital transfers can be more complicated than one field
Property passing to a surviving spouse, QTIP elections, portability, and trust design can interact. The portable exclusion field is not a substitute for estate planning.
Income tax is a separate topic
Estate tax is not the same as individual income tax. For personal federal income-tax estimates, use the Income Tax Calculator.
Retirement accounts may carry income tax later
Inherited retirement accounts can create income-tax consequences for beneficiaries. The estate-tax estimate does not compute later withdrawal taxes.
Annuities can appear inside an estate
Certain annuity contracts may be part of estate value or beneficiary planning. The Annuity Payout Calculator answers a payout question, not estate inclusion.
Marriage tax comparison is not portability
The Marriage Tax Calculator compares income-tax filing scenarios. Estate portability is a separate federal estate-tax concept.
Executors need records
Account statements, deeds, appraisals, insurance records, loan balances, business documents, and prior gift-tax returns are needed for a real filing decision.
Filing may be useful even without tax
Some estates file a federal return to make a portability election even when no tax is due. The calculator does not decide whether filing is required or strategic.
Law changes can move the threshold
Federal exclusion amounts and rules can change. Recheck official IRS guidance for the death year before relying on an older estimate.
Nonresident estates can follow different rules
Nonresident noncitizen estate rules, treaty issues, and situs property can differ from a simple U.S. resident estimate. Professional advice is important in those cases.
Debts should be entered carefully
Mortgages, loans, final medical bills, taxes, and administration expenses can reduce the taxable estate when allowed. Unsupported estimates can make the result unreliable.
Do not use the result to delay planning
A zero estimated tax does not mean no estate planning is needed. Beneficiary designations, guardianship, liquidity, probate, incapacity documents, and family coordination may still matter.
Liquidity can be as important as tax
An estate can be valuable but illiquid if wealth is tied up in real estate or a business. Paying expenses can be difficult even when estimated tax is low.
Use the page for federal exposure screening
The calculator is useful for a first look at whether a large estate may exceed the federal exclusion. It is not a legal filing calculation.
Review beneficiary designations separately
Retirement accounts, life insurance, payable-on-death accounts, and transfer-on-death deeds may pass outside probate but still affect estate value or beneficiary outcomes.
Valuation date can matter
Estate administration can involve valuation date choices and special elections. The calculator assumes the value entered is the value to use.
Save the death-year assumption
Record gross estate, deductions, prior taxable gifts, portability amount, death year, exclusion, and estimated tax. The year is essential because thresholds are year-specific.
Use professional help for real estates
Federal estate tax can involve Form 706, appraisals, elections, deadlines, state rules, trusts, and family law. Use a qualified estate attorney or tax professional before acting.