Maine does not have an inheritance tax. It has an estate tax, and the distinction changes who pays. An inheritance tax would bill each heir based on what they personally received; Maine’s estate tax is calculated on the estate as a whole and paid out of estate funds before anyone inherits anything. For deaths in 2026, the first $7,160,000 of an estate’s value is exempt, and only the amount above that threshold is taxed, at rates from 8% to 12%.1Maine Revenue Services. Estate Tax (706ME) If you are a beneficiary, the tax is not your personal bill.
Maine is one of roughly a dozen states with an estate tax, and it is not one of the five that levy an inheritance tax. Residency drives what gets taxed. If the decedent lived in Maine, the whole estate is on the table, including property held in other states. If the decedent lived elsewhere but owned Maine real estate or tangible personal property here, only those Maine-situated assets are taxed.2Tax Foundation. Estate and Inheritance Taxes by State, 2025
The 2026 Exemption and Tax Rates
For decedents dying in 2026, Maine exempts the first $7,160,000. The rates on the excess are progressive across three brackets:1Maine Revenue Services. Estate Tax (706ME)
- 8% on the first $3,000,000 above the exemption (taxable estate between $7,160,000 and $10,160,000)
- 10% on the next $3,000,000 (between $10,160,000 and $13,160,000)
- 12% on everything above $13,160,000
The rate does not vary with the beneficiary’s relationship to the decedent. A spouse, a child, and an unrelated friend all sit inside the same estate tax calculation. That is a defining feature of estate taxes generally, and it is one of the reasons the “inheritance tax” label is misleading when applied to Maine.
Why Maine Can Charge Tax When the IRS Does Not
The federal estate tax exemption for 2026 is $15,000,000 per individual, following the increase in the One Big Beautiful Bill Act signed in July 2025.3Internal Revenue Service. What’s New – Estate and Gift Tax Maine’s exemption is less than half of that. An estate worth $10,000,000 owes nothing federally but still owes Maine tax on the amount above $7,160,000. This gap catches families off guard: clearing the federal threshold does not clear the state one, and an estate anywhere between $7,160,000 and $15,000,000 has a Maine-only tax bill.
What Counts as Part of the Estate
The taxable estate is everything the decedent owned or controlled at death, valued at fair market value on the date of death. That includes real estate (the family home, vacation property, rental buildings, land), vehicles, jewelry, artwork, collectibles, and interests in closely held businesses. High-value collections and business interests usually require professional appraisals.
Financial assets are counted at date-of-death market value: bank accounts, brokerage accounts, stocks, bonds, and mutual funds. Retirement accounts like IRAs and 401(k)s are in the gross estate if the decedent had control, even when they pass directly to a named beneficiary outside probate.
Life insurance proceeds are generally not part of the taxable estate when paid to a named beneficiary, but they are included if the policy pays to the estate itself or if the decedent kept ownership rights such as the power to change beneficiaries or borrow against cash value.4Maine Revenue Services. Guidance Document – Maine Estate Tax for Deaths Occurring After 2012 Jointly owned real estate is included based on the decedent’s ownership share, and conservation easements can reduce the taxable value of permanently preserved land.
Deductions and the One-Year Gift Look-Back
Several deductions can shrink the taxable estate:
- The marital deduction: assets passing to a surviving spouse who is a U.S. citizen are fully deductible with no dollar cap. It defers rather than eliminates the tax, because the assets are then in the survivor’s estate.
- The charitable deduction: bequests to qualifying charities are fully deductible, and a significant gift can push a borderline estate below the exemption entirely.
- Debts and expenses: outstanding debts of the decedent, funeral costs, and administrative expenses like executor fees and legal costs.
Unmarried partners do not qualify for the marital deduction, which is one reason trust-based planning matters more for unmarried couples with substantial assets.
Giving assets away shortly before death is not a reliable escape. Maine adds taxable gifts made within one year of death back into the estate for tax purposes.4Maine Revenue Services. Guidance Document – Maine Estate Tax for Deaths Occurring After 2012 A “taxable gift” here means one exceeding the annual federal gift tax exclusion ($19,000 per recipient in 2025). Someone with a $7,500,000 estate who gives away $500,000 and dies eight months later has that $500,000 pulled back in. Gifts made more than a year before death are not added back under Maine law.
Married couples face an added wrinkle. Maine does not allow portability of a deceased spouse’s unused exemption the way the federal system does, but the state permits a separate Maine QTIP election that can shelter assets up to the difference between the federal and Maine exclusion amounts until the surviving spouse dies. That planning technique is worth a conversation with an estate attorney before either spouse’s death.4Maine Revenue Services. Guidance Document – Maine Estate Tax for Deaths Occurring After 2012
Filing, Deadlines, and Penalties
An estate must file Maine Form 706ME if a federal estate tax return is required, if the estate is making a Maine QTIP election, or if the adjusted federal gross estate exceeds $7,160,000 for a 2026 death.1Maine Revenue Services. Estate Tax (706ME) The executor files, pays, and deals with Maine Revenue Services. Payments can go through the Maine Tax Portal by electronic funds transfer.5Maine Revenue Services. Electronic Services
Form 706ME is due nine months after the date of death, matching the federal deadline. For a March 1, 2026 death, the return is due by December 1, 2026. Maine gives an automatic extension to file equal to any federal extension or six months, whichever is longer. That extension covers filing only. Payment is still due at nine months, and interest starts accruing on any unpaid balance from that original due date. An extension to pay must be requested separately in writing.6Maine Revenue Services. Instructions for Maine Estate Tax Return
Nine months sounds like plenty, but estates with real property, business interests, or out-of-state assets often run tight. Scheduling appraisals early is one of the more useful things an executor can do.
Penalties under Maine’s general tax provisions apply:7Maine State Legislature. Maine Revised Statutes Title 36 Section 187-B – Penalties
- Late filing before formal demand, or within 60 days of receiving one: $25 or 10% of the tax due, whichever is greater.
- Late filing more than 60 days after a formal demand: $25 or 25% of the tax due, whichever is greater.
- Late payment: 1% of the unpaid tax per month, up to 25% total.
These penalties stack, and interest runs alongside them. Executors are personally on the hook for filing and payment. Distributing assets to heirs before settling the tax bill is one of the more common ways an executor creates personal liability.
The Automatic Lien on Maine Real Property
When someone who owned real property in Maine dies, the state automatically places a lien on that property to secure any potential estate tax. The lien exists regardless of whether any tax is ultimately owed, and it lasts for 10 years from the date of death.8Maine Legislature. Maine Revised Statutes Title 36 Section 4112 – Lien for Taxes Heirs cannot sell or refinance with clear title until it is released.
To clear it, the estate files Form 706ME if a return is required, or a Statement of Value (Form 700-SOV) with a Certificate of Discharge attached if the estate is below the filing threshold.9Maine Revenue Services. Estate Tax FAQ Families with small estates often assume there is nothing to file because no tax is owed. The lien still needs to be formally cleared, or a future real estate transaction will stall on it.