Estate Tax Calculator

Estate Tax Calculator for educational purposes.

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Estate Tax Calculator: Complete 2026 Guide

With the federal estate tax exemption potentially dropping from ~$13.6M to ~$7M per person in 2026, estate tax planning is more urgent than ever. This calculator estimates your federal estate tax liability and helps identify how much of your estate is exposed to the 40% tax rate.

Our free Estate Tax Calculator helps you estimate costs based on 5 key financial variables. The calculator provides 3 detailed outputs based on current rates and financial benchmarks.

Enter your details to get estimates based on current financial data as of 2026.

What you'll learn:

  • Accurate estate tax calculator estimates based on your specific inputs
  • Low, average, and high cost ranges for budgeting
  • How local factors impact pricing
  • Strategies for maximizing your financial outcome

Estate Tax Calculator Cost Breakdown

Understanding the cost breakdown helps you budget effectively for your estate tax calculator project. Here are the typical cost components:

How to Calculate Estate Tax Calculator

Our estate tax calculator uses a multi-variable formula that accounts for the following inputs:

  1. Scenario Complexity — Choose from: Basic / Standard, Typical, Advanced / Complex
  2. Gross Estate Value ($) — Range: 0 to 500,000,000
  3. Debts & Liabilities ($) — Range: 0 to 50,000,000
  4. Charitable Gifts ($) — Range: 0 to 50,000,000
  5. Marital Deduction ($) — Amount passing to surviving spouse

Based on your inputs, the calculator provides:

  • Taxable Estate — Dollar amount based on current market rates
  • Estimated Federal Estate Tax — Dollar amount based on current market rates
  • Effective Tax Rate — Percentage value

All calculations incorporate location-specific cost adjustments when a ZIP code is provided, using data from industry databases updated for 2026.

Our Estate Tax Calculator Methodology

Calculates federal estate tax liability by determining gross estate value, subtracting allowable deductions (debts, expenses, charitable bequests, marital deduction), applying the unified credit (lifetime exemption), and computing tax on the taxable estate at graduated rates up to 40%.

Data Sources:

  • IRS Publication 559 and Form 706 instructions for estate tax calculation
  • Tax Foundation analysis of estate tax exemption levels and effective rates
  • American College of Trust and Estate Counsel (ACTEC) practice guidelines

Key Assumptions:

  • The 2026 federal estate tax exemption is projected at approximately $7 million per individual (post-TCJA sunset) or $14 million per married couple with portability
  • Federal estate tax rate is 40% on taxable estate above the exemption amount
  • State estate taxes apply in 12 states + DC with exemptions ranging from $1M (Oregon, Massachusetts) to equal to federal
Accuracy: The federal estate tax exemption is scheduled to decrease significantly in 2026 when TCJA provisions sunset, potentially from ~$13.6M to ~$7M per person. State estate tax laws vary dramatically. This calculator provides federal estimates — consult an estate planning attorney for comprehensive planning including state taxes, generation-skipping transfer tax, and trust strategies.

Factors That Affect Estate Tax Calculator Costs

Several factors influence your estate tax calculator estimate:

Scenario Complexity
Ranges from "Basic / Standard" to "Advanced / Complex." Choosing Advanced / Complex can cost 1.5x more than Basic / Standard.
Gross Estate Value ($)
A key variable in determining your estate tax calculator estimate.
Debts & Liabilities ($)
A key variable in determining your estate tax calculator estimate.
Charitable Gifts ($)
A key variable in determining your estate tax calculator estimate.
Marital Deduction ($)
Amount passing to surviving spouse
Market Conditions
Interest rates, inflation, and economic indicators fluctuate over time and directly affect your results. Federal Reserve policy changes can shift rates within weeks.
Time Horizon
Longer time horizons amplify the effect of compound interest and rate changes. Even small rate differences compound into significant dollar amounts over years.

Understanding Your Estate Tax Calculator Results

After you run the calculator, your results include interactive sections that help you make informed decisions:

Financial Breakdown

Your results separate principal from interest (or contributions from earnings) so you can see exactly how your money is working. Understanding this split helps you evaluate whether refinancing, extra payments, or alternative strategies could save you money over time.

Visual Chart

Charts make it easy to grasp the relationship between what you pay and what you owe (or what you save and what you earn). A quick look at the visual split helps you decide whether your current approach is on track or whether adjustments to your payment or contribution strategy could improve your outcome.

Save and Share Your Results

Download your complete results as a CSV spreadsheet or PDF report. The PDF includes all your inputs and key results — ready to share with financial advisors or anyone else who needs to review the numbers. No account or signup required.

How to Save Money on Estate Tax Calculator

Here are proven strategies to reduce your costs:

  1. Compare Rates from Multiple Lenders: Shop rates from at least 3 lenders. Even a 0.25% difference in interest rate can save thousands over time.
  2. Automate Your Savings: Set up automatic transfers to savings or investment accounts. Consistent contributions compound significantly over time.
  3. Maximize Tax-Advantaged Accounts: Contribute to 401(k) up to employer match, then fund IRA/Roth IRA. Tax-advantaged growth accelerates your returns.
  4. Reduce High-Interest Debt First: Pay off credit cards and high-APR loans before investing. Eliminating 18-25% APR debt is a guaranteed return.
  5. Review Fees and Expense Ratios: High fund fees erode returns. Index funds with 0.03-0.10% expense ratios outperform most actively managed funds over time.
  6. Use Balance Transfer Offers Strategically: 0% APR balance transfer offers can save hundreds in interest — but pay off before the promotional period ends.

Estate Tax Calculator FAQs

The federal estate tax exemption in 2026 is projected to return to approximately $7 million per individual (inflation-adjusted) after the TCJA sunset from the current ~$13.6 million. Married couples can effectively shelter $14 million using portability (transferring unused exemption to the surviving spouse). Estates exceeding the exemption are taxed at 40% on the excess. However, 12 states plus DC impose separate estate taxes with exemptions as low as $1 million (Oregon, Massachusetts). The unlimited marital deduction allows unlimited tax-free transfers to a surviving US citizen spouse.
The gross estate includes essentially everything you own or control at death: real property, bank and investment accounts, retirement accounts (IRAs, 401ks — even though beneficiaries pay income tax), life insurance you own (even term policies), business interests, trusts where you retained control, jointly held property (your share), and assets transferred within 3 years of death if you retained an interest. Commonly missed items: life insurance ownership (use an ILIT to exclude), revocable trust assets (included in estate), and retirement accounts (which face both estate tax and income tax for non-spouse beneficiaries — the "double tax" problem).
In 2026, the federal estate tax exemption is projected to return to approximately $7 million per individual (adjusted for inflation) after the TCJA provisions sunset. Married couples can effectively double this through portability. Estates below the exemption pay zero federal estate tax. However, 12 states and DC impose their own estate taxes with exemptions as low as $1 million. Assets passed to a surviving spouse qualify for the unlimited marital deduction regardless of amount.
Key strategies include: (1) Annual gift exclusion — give up to $18,000/person/year (2026) without using lifetime exemption, (2) Irrevocable trusts — remove assets from your taxable estate, (3) Family limited partnerships — transfer business interests at discounted valuations, (4) Charitable remainder trusts — provide income stream plus charitable deduction, (5) Life insurance trusts (ILIT) — keep insurance proceeds out of your estate, (6) Grantor retained annuity trusts (GRATs) — transfer appreciation to heirs with minimal gift tax. Implement these strategies before the exemption potentially drops in 2026.
Our calculator uses current market rates and established financial formulas to provide estimates within typical industry accuracy. Results are based on the inputs you provide — actual outcomes depend on market conditions, fees, and individual circumstances. Use this as a planning tool alongside professional financial advice.
You'll enter key financial variables such as amounts, interest rates, time periods, and contribution levels. Each input includes guidance text to help you choose realistic values. The calculator adjusts results instantly as you change any variable.
Our financial calculator data is updated monthly using Federal Reserve rates, BLS economic indicators, and IRS contribution limits. Market-dependent calculations (mortgage rates, savings yields) reflect current published benchmarks.
Our estimates provide a useful starting point for financial planning, but they should not be used as tax advice. Tax situations vary by individual. Consult a tax professional or CPA for personalized guidance.
project scope, material quality, labor costs, and regional pricing differences. Getting an accurate estimate requires considering all these variables for your specific situation.
Yes — the calculator is completely free with no signup required. You can run unlimited calculations, download results as CSV or PDF, and share them with your financial advisor.

Why Trust Our Calculator?

Based on current market rates
Federal Reserve and IRS data integrated
Location-adjusted cost-of-living factors
No signup or payment required
Updated monthly with latest data
Sources: Federal Reserve, BLS, IRS
CostSignals Finance TeamVerified Data

Financial Analysts

Data from Federal Reserve, FRED, and verified financial institution rates.

Updated monthly

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Amount passing to surviving spouse

This calculator provides estimates for informational purposes only and does not constitute financial advice. Consult a qualified financial professional before making financial decisions.

All figures shown are estimates based on average costs and may vary significantly based on your specific situation, contractor, materials, and local conditions.

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