Inheritance Tax Tutorial: What You Need to Know About Estate Taxes

Inheritance tax and estate tax are two of the most misunderstood areas of personal finance. Many people assume they will owe nothing because their estate is small, only to discover that state-level inheritance taxes apply to amounts far lower than the federal exemption. Others assume the opposite and overpay because they do not take advantage of available exemptions and planning strategies. This tutorial breaks down everything you need to know about inheritance and estate taxes in 2026, from who owes them to how to reduce or eliminate the bill entirely.

Estate Tax vs Inheritance Tax: Key Differences

Although the terms are often used interchangeably, estate tax and inheritance tax are two completely different levies. The federal government and some states impose an estate tax on the total value of a deceased person's assets before distribution to heirs. The estate itself pays the tax. Inheritance tax, on the other hand, is imposed by a handful of states on the beneficiaries who receive assets. The tax rate depends on who the beneficiary is and how much they inherit.

Currently, the federal government does not impose an inheritance tax. Only six states collect inheritance tax: Iowa, Kentucky, Maryland, Nebraska, New Jersey, and Pennsylvania. Maryland is unique in that it imposes both an estate tax and an inheritance tax. Understanding which tax applies to your situation is the first step in any estate planning strategy.

The distinction matters because the burden falls on different parties. If you are an executor, you are responsible for filing the estate tax return and paying any estate tax due from the estate before distributing assets. If you are a beneficiary in an inheritance tax state, you may need to file a return and pay tax on what you receive, though the executor often withholds and remits the tax on your behalf.

Federal Estate Tax Exemption for 2026

The federal estate tax exemption for 2026 is set at approximately $13.61 million per individual, up from $13.06 million in 2025 due to inflation indexing. This means that estates valued below this threshold owe zero federal estate tax. Estates above the threshold are taxed at a top marginal rate of 40% on the excess value. For married couples, the exemption can be combined through portability, effectively sheltering up to $27.22 million.

These exemption levels are scheduled to sunset at the end of 2025 under the Tax Cuts and Jobs Act, but legislation passed in late 2025 extended the current exemption levels through 2027. If the sunset eventually occurs, the exemption would drop to roughly $7 million per individual, adjusted for inflation. Estate planning professionals recommend acting now if your estate exceeds $7 million to lock in current exemptions through strategies like lifetime gifting.

It is important to note that the estate tax is levied on the gross estate, which includes cash, real estate, investments, business interests, retirement accounts, life insurance proceeds (if the decedent owned the policy), and certain jointly held property. Deductions are allowed for funeral expenses, debts, administrative costs, charitable bequests, and property passing to a surviving spouse under the marital deduction.

State-Level Estate Tax Rates and Thresholds

In addition to the federal estate tax, 12 states and the District of Columbia impose their own estate taxes with much lower exemption thresholds. As of 2026, these states include Connecticut, Hawaii, Illinois, Maine, Maryland, Massachusetts, Minnesota, New York, Oregon, Rhode Island, Vermont, and Washington. The District of Columbia also has its own estate tax. Exemption amounts vary widely, from $1 million in Oregon to $6.94 million in Connecticut.

State	Exemption Threshold (2026)	Top Rate
Connecticut	$6.94 million	12%
Hawaii	$5.49 million	20%
Illinois	$4 million	16%
Maine	$6.41 million	12%
Maryland	$5 million	16%
Massachusetts	$1 million	16%
Minnesota	$3 million	16%
New York	$6.94 million	16%
Oregon	$1 million	16%
Rhode Island	$1.77 million	16%
Vermont	$5 million	16%
Washington	$2.193 million	20%
District of Columbia	$4.41 million	16%

If you live in one of these states, your estate may owe state estate tax even if it falls well below the federal exemption. Planning for state-level exposure is critical because the rates are substantial, often starting at 12% and reaching 16% to 20% for the largest estates. Some states, like Massachusetts and Oregon, have exemptions as low as $1 million, which affects many homeowners and retirees with modest estates.

Which States Impose an Inheritance Tax

Inheritance tax is separate from estate tax and applies to the beneficiary rather than the estate. The six states that levy an inheritance tax are Iowa, Kentucky, Maryland, Nebraska, New Jersey, and Pennsylvania. In most of these states, the rate depends on the beneficiary's relationship to the decedent. Spouses are almost always exempt. Children and grandchildren typically face low rates or are exempt. Siblings, nieces, nephews, and unrelated beneficiaries face the highest rates, sometimes exceeding 15%.

For example, in Pennsylvania, inheritance tax rates for 2026 are 0% for spouses, 4.5% for direct descendants (children and grandchildren), 12% for siblings, and 15% for all other beneficiaries. New Jersey exempts spouses, children, and grandchildren entirely, but taxes siblings and other beneficiaries at rates from 11% to 16%. Iowa taxes beneficiaries based on the amount received and their relationship, with exemptions up to $25,000 for certain classes.

Maryland is the only state that imposes both an estate tax and an inheritance tax. The Maryland estate tax applies to estates over $5 million, while its inheritance tax applies to beneficiaries who are not spouses, children, or grandchildren. This dual structure means Maryland residents need to plan for both potential liabilities when structuring their estates.

How Inheritance Tax Is Calculated for Beneficiaries

Inheritance tax calculations vary by state, but the general formula starts with the fair market value of the inherited asset on the date of the decedent's death. The beneficiary's relationship to the decedent determines the tax rate applied. Some states allow a small exemption before tax is calculated. For example, in New Jersey, beneficiaries in Class C (siblings, children-in-law) receive a $25,000 exemption before tax applies. Class D beneficiaries (all others) receive no exemption.

The type of asset also matters. Retirement accounts like IRAs and 401(k)s may be subject to both inheritance tax and income tax when the beneficiary withdraws funds, a phenomenon known as double taxation. Life insurance proceeds are generally exempt from inheritance tax if the policy is owned by someone other than the decedent, but they may still count toward the estate tax. Real estate located in an inheritance tax state is generally subject to that state's inheritance tax regardless of where the beneficiary lives.

Beneficiaries should be aware that some states allow partial credits for inheritance tax paid to another state. If you inherit property from a decedent who lived in a different state, you may need to file returns in multiple states. Consulting with a tax professional who specializes in multi-state estate matters is strongly recommended when assets cross state lines.

Estate Tax Return (Form 706) Filing Requirements

The executor of an estate must file IRS Form 706, United States Estate (and Generation-Skipping Transfer) Tax Return, if the gross estate plus adjusted taxable gifts and specific exemptions exceed the filing threshold. For 2026, the filing threshold matches the exemption amount of approximately $13.61 million. However, filing may be required even for smaller estates if the executor elects portability of the unused spousal exemption. Without filing Form 706, any unused exemption from the first spouse to die is lost forever.

Form 706 is due nine months after the date of death, though a six-month extension is available by filing Form 4768. The form is complex, requiring detailed schedules for each category of assets, deductions, and credits. Executors should hire a CPA or estate attorney experienced with estate tax returns. The IRS charges significant penalties for late filing and late payment, so meeting deadlines is critical.

Generation-skipping transfer (GST) tax is a separate tax imposed on transfers to beneficiaries who are two or more generations below the decedent, such as grandchildren. The GST tax exemption mirrors the estate tax exemption, and Form 706 includes a schedule for calculating any GST tax due. Trusts that skip generations, such as dynasty trusts, must be carefully structured to avoid triggering GST tax.

Portability and the Deceased Spousal Unused Exclusion

Portability allows a surviving spouse to use any unused portion of the deceased spouse's federal estate tax exemption. For example, if one spouse dies in 2026 with an estate worth $5 million, they use $5 million of their $13.61 million exemption, leaving $8.61 million unused. Through a portability election on Form 706, the surviving spouse can add that $8.61 million to their own exemption, giving them a combined total of up to $27.22 million to shelter from estate tax.

To elect portability, the executor must file a timely Form 706 even if the estate is below the filing threshold. This is a common reason to file Form 706 for estates that otherwise would not need to. Once elected, portability remains in effect for the surviving spouse's lifetime unless they remarry and the new spouse also dies and elects portability, which could complicate the calculation.

Portability applies only to the federal estate tax, not to state estate taxes. State-level exemptions generally do not have portability provisions. Some states, such as Maryland and New York, have their own portability-like rules, but most do not. This means that a surviving spouse in Massachusetts with a $2 million estate would owe state estate tax even if the federal exemption through portability is much higher.

Lifetime Gifts and the Gift Tax Exemption

The gift tax annual exclusion for 2026 is $19,000 per recipient. This means you can give up to $19,000 to as many individuals as you wish each year without using any of your lifetime gift and estate tax exemption. Married couples can double this to $38,000 per recipient through gift splitting. Gifts in excess of the annual exclusion count against your lifetime exemption, which is unified with the estate tax exemption at $13.61 million.

Strategic lifetime giving is one of the most effective ways to reduce a taxable estate. By gifting appreciating assets such as real estate or stocks early, you remove future appreciation from your estate. You also shift the income tax liability associated with those assets to the recipient. For estates that may exceed the exemption threshold, a gifting program should begin as early as possible to maximize the amount removed.

Gifts to spouses who are U.S. citizens are entirely exempt from gift tax under the unlimited marital deduction. Gifts to non-citizen spouses are limited to $190,000 per year in 2026. Gifts to charities are also fully deductible. Educational and medical payments made directly to the institution are exempt from gift tax regardless of amount, which is a powerful tool for grandparents helping with tuition or medical bills.

Trust Strategies to Minimize Estate and Inheritance Taxes

Trusts are the primary vehicle for estate tax planning. A properly structured trust can remove assets from your taxable estate while still allowing you to retain some control or benefit. Common estate tax planning trusts include the credit shelter trust (also called a bypass trust), which uses the deceased spouse's exemption to shelter assets from estate tax while providing income to the surviving spouse for life. The assets in the trust pass to the next generation free of estate tax upon the surviving spouse's death.

Irrevocable life insurance trusts (ILITs) remove life insurance proceeds from the taxable estate. Since life insurance owned by the decedent is included in the gross estate, an ILIT removes this exposure. The trust owns the policy, and the proceeds pass to beneficiaries free of both estate and income tax. Grantor retained annuity trusts (GRATs) are effective for transferring asset appreciation to beneficiaries with minimal gift tax cost, especially in low-interest-rate environments.

Charitable remainder trusts (CRTs) and charitable lead trusts (CLTs) combine charitable giving with estate tax reduction. A CRT pays income to the donor for a period of years, after which the remainder goes to charity. The donor receives a charitable deduction and removes the asset from the estate. A CLT does the reverse, paying income to charity first and leaving the remainder to family, often at a reduced estate tax cost.

Common Mistakes and How to Avoid Them

One of the most common mistakes is assuming that the federal exemption is the only threshold that matters. As shown above, many states impose estate or inheritance taxes at much lower levels. A Massachusetts resident with a $1.5 million estate owes no federal tax but could face a state estate tax bill of over $60,000. Always check both federal and state rules when planning an estate.

Another frequent error is failing to update beneficiary designations on retirement accounts and life insurance policies. These assets pass outside of the will, so outdated designations can cause assets to go to the wrong person and trigger unintended tax consequences. For example, naming your estate as the beneficiary of an IRA can accelerate income tax on the entire account balance rather than allowing stretch distributions for beneficiaries.

Finally, many people overlook the importance of liquidity. Estate taxes must be paid in cash within nine months of death. If the estate consists largely of illiquid assets like real estate or a family business, the executor may be forced to sell assets at unfavorable prices to raise cash. Life insurance, lines of credit, and carefully planned asset allocation can provide the liquidity needed to pay estate taxes without a fire sale.

For more information, visit the IRS Estate Tax page, Tax Policy Center, and NerdWallet Estate Tax Guide. For state-specific inheritance tax rules, consult your state's department of revenue or a qualified estate planning attorney.

This article is for informational purposes only and does not constitute professional tax or legal advice. Estate and inheritance tax laws vary by state and change frequently. Always consult a qualified estate planning attorney or CPA for guidance tailored to your specific situation.