Minnesota Estate Tax 2026: The $3 Million Threshold and the Federal Gap

Why Minnesota catches more families than they expect

The $3M threshold is not reserved for the wealthy. In the Twin Cities metro — Edina, Minnetonka, Wayzata, Orono, Plymouth, North Oaks — it is a number that a two-income professional family or a retired business owner can reach through ordinary asset accumulation over a long career.

• A home purchased in Edina for $250,000 in 1995 may now be worth $650,000–$900,000. Add a 401(k) balance of $1.3M, IRAs of $500K, brokerage of $300K, and life insurance of $400K owned by the decedent — and that family's gross estate is $2.75M–$3.1M. A single year of market appreciation can push them over the $3M line.
• A retired physician or attorney in Minnetonka with a home worth $1.1M, combined retirement accounts of $1.8M, brokerage of $400K, and a small deferred compensation balance may be at or above $3M without recognizing the Minnesota estate tax exposure.
• A farm family in outstate Minnesota whose land has appreciated from $1,500/acre in 2000 to $7,000–$10,000/acre today may have a $3M–$8M gross estate — driven almost entirely by the land value. Many of these families qualify for the farm exclusion, but only if specific ownership and use requirements are met.
• A married couple with a combined estate of $5M at the first spouse's death faces a critical decision. Without a credit shelter trust, the survivor inherits $5M, gains zero benefit from the first spouse's $3M exemption, and at second death faces MN estate tax on the full $5M estate minus one $3M exemption — approximately $260,000 in Minnesota estate tax that could have been substantially reduced with a credit shelter trust in the couple's estate plan.

Minnesota estate tax — approximate tax by estate size

Minnesota estate tax is computed on the "Minnesota taxable estate," which is the gross estate minus the $3M exclusion and any applicable deductions. The graduated rate schedule begins at 13% and rises to 16% on large estates. The Minnesota Department of Revenue publishes an online estate tax calculator and rate tables at revenue.state.mn.us/estate-tax-calculators for precise computations — estates involving complex assets, deductions, or the farm/business exclusion should use those tools with professional guidance.¹

The federal–Minnesota estate tax gap

The most important planning concept in Minnesota estate tax is the $12 million gap between the state and federal exemptions:

This gap — the widest of any state in the country — defines Minnesota estate planning for upper-middle-class and affluent families. A retired couple in Wayzata with a combined estate of $7M owes approximately $520,000 in Minnesota estate tax (at second death with no planning) and literally $0 in federal estate tax. The entire liability is a state-only obligation that the executor may not discover until the estate is already in administration, when it is too late to act.

Because the federal exemption is $15M per person ($30M per couple with portability), virtually every Minnesota family that owes Minnesota estate tax will owe zero federal estate tax. All planning focus must be on reducing the Minnesota-specific exposure.

What assets are included in the Minnesota gross estate

Minnesota is a common-law state — only half the step-up basis

Minnesota is not a community property state. For jointly-owned assets between spouses, only the decedent's half receives a step-up in cost basis at death under IRC §1014. The surviving spouse's 50% retains its original cost basis.

Married couples: no portability and what to do instead

The federal estate tax allows the surviving spouse to carry forward the deceased spouse's unused exemption (the "DSUE" election, filed via IRS Form 706 within 9 months of death). Under OBBBA, a married couple has a combined federal exemption of $30M with portability — meaning both spouses' $15M exemptions can be used by the survivor.

Minnesota does not recognize portability.² Each Minnesota estate receives exactly one $3M exemption. If the first spouse to die leaves everything outright to the surviving spouse — the most common default in older estate plans — no Minnesota estate tax is due at the first death under the unlimited marital deduction. But the unused $3M Minnesota exemption is permanently wasted. At second death, the combined estate faces only one $3M exemption.

Credit shelter trusts — the essential Minnesota planning tool

At the first spouse's death, assets equal to the Minnesota exemption ($3M) are placed in a credit shelter trust — also called a bypass trust or "B trust" — rather than passing outright to the surviving spouse. The trust benefits the surviving spouse during their lifetime (income distributions, and principal access under HEMS or other standards). At the survivor's death, the trust assets pass to children or other beneficiaries without being included in the survivor's Minnesota taxable estate.

Every married Minnesota couple with a combined estate above $3M should evaluate whether their estate plan contains credit shelter trust provisions sized appropriately to the current Minnesota exemption. An estate plan drafted in 2000–2010 may have trust funding formulas that no longer capture the optimal amount. A Minnesota estate attorney should review these documents — the funding formula matters as much as having a trust at all.

Farm and small business exclusion

Minnesota provides an additional estate tax exclusion for qualifying family farm real estate and qualifying small business property under Minn. Stat. §291.03.³ The exclusion works on top of the $3M general exemption, with a combined maximum of $5,000,000 per estate.

Filing requirements

Who must file

The personal representative of a Minnesota resident decedent's estate must file Form M706 (Minnesota Estate Tax Return) if the gross estate equals or exceeds $3,000,000.¹ The form is filed with the Minnesota Department of Revenue. Executors must complete the federal Form 706 computation as a prerequisite for computing the Minnesota estate tax — the MN computation begins with the federal taxable estate.

Deadline: 9 months from date of death

The Minnesota estate tax return and any tax payment are due 9 months from the date of death.¹ A 6-month extension of time to file can be requested via Form M706-EXT, but extensions do not extend the time to pay — tax owed accrues interest from the original 9-month deadline. Interest begins accruing at the statutory Minnesota rate from the original due date, not the extended filing date.

Estates between $3M and $15M — filing federal Form 706 anyway

Minnesota estate tax is due on estates between $3M and $15M, but no federal estate tax applies in that range. Executors of these estates should consider filing a federal Form 706 within 9 months of death even without a federal tax liability — to preserve the federal spousal portability election for the surviving spouse. The surviving spouse may later face a federal estate exposure (through appreciation or additional inheritances), and the federal DSUE election must be filed timely at first death to be available. The federal portability election does not help with Minnesota estate tax, but it preserves the option at the federal level.

Non-resident decedents with Minnesota real estate

Minnesota imposes estate tax on Minnesota-situs real property owned by non-residents, prorated based on the ratio of Minnesota property to the total gross estate. A Wisconsin or South Dakota resident who owns a Minnesota lake cabin, farm, or rental property may have Minnesota estate tax obligations. An estate attorney should evaluate any estate that includes Minnesota-situs real property owned by a non-resident decedent.

The Minnesota domicile trap for snowbirds

Minnesota's combination of a high income tax (9.85% top rate) and a low $3M estate tax exemption creates strong incentives for wealthy Minnesotans to establish legal domicile in Florida, South Dakota, Arizona, or another low-tax state. Many do so — but some fall short of the requirements to legally change domicile, leaving them exposed to Minnesota estate tax on their worldwide estate at death.

Minnesota domicile depends on the totality of facts: where you spend the most time, where your primary relationships and connections remain, where you are registered to vote, where you hold professional licenses, where your physician is, where your family ties are strongest, and where you maintain a "home base." Spending 183+ days in Florida each year is a useful threshold, but it is not determinative on its own. If the Minnesota Department of Revenue determines that a decedent remained a Minnesota domiciliary despite owning a Florida home and declaring a Florida address, Minnesota estate tax applies to the worldwide estate.

For heirs of a decedent who claimed non-Minnesota domicile, the first question the estate attorney must answer is whether the domicile change was legally sufficient. If disputed by the MN DOR, the estate tax exposure — including back interest — can be substantial. Proper domicile changes require more than buying a condo in Naples; they require transferring the center of one's life, not just one's mailing address.

No Minnesota gift tax — annual gifting reduces the estate

Minnesota imposes no standalone state gift tax.⁴ Annual exclusion gifts permanently remove assets from the Minnesota estate tax base. For 2026, the federal annual gift exclusion is $19,000 per recipient ($38,000 for a married couple using gift splitting).

Planning strategies to reduce Minnesota estate tax

Minnesota's combination of a $3M exemption, no portability, and a $12M federal gap creates a specific planning challenge. These strategies work best when implemented years before death.

1. Credit shelter trusts — foundational for married Minnesota couples

The most powerful Minnesota-specific planning tool. At the first spouse's death, $3M (or however much the estate can support) is directed into a credit shelter trust rather than passing outright to the survivor. The trust benefits the surviving spouse but passes outside their taxable estate at second death. For a couple with a $7M combined estate, the difference between planning and not planning is approximately $390,000 in Minnesota estate tax.

2. Systematic annual gifting

A married couple with two adult children can remove $76,000 per year ($19K × 2 × 2) with no federal gift tax return. Over a decade: $760,000 permanently out of the Minnesota estate. For couples just above $3M, a sustained gifting program can eliminate Minnesota estate tax exposure entirely.

3. Irrevocable Life Insurance Trusts (ILITs)

Life insurance owned by the decedent is included in the Minnesota gross estate under IRC §2042. Transferring an existing policy to an ILIT removes the death benefit from the Minnesota estate — but the decedent must survive the transfer by 3 years to avoid estate inclusion under the federal 3-year rule. For Minnesota families who need liquidity to pay estate tax without forced sales of a business or farmland, an ILIT holding a survivorship (second-to-die) life insurance policy is a common solution. The death benefit can be sized specifically to fund the anticipated Minnesota estate tax.

4. Spousal Lifetime Access Trusts (SLATs)

A SLAT allows one spouse to gift assets into an irrevocable trust for the benefit of the other spouse (and descendants), removing those assets from both estates. The grantor spouse uses federal lifetime exemption ($15M per OBBBA) to fund the SLAT — no current gift tax. The assets are removed from the Minnesota gross estate from the transfer date. Minnesota families in the $5M–$15M range who want to use their large federal exemption to reduce Minnesota exposure can use SLATs effectively. Mutual SLATs require careful drafting to avoid the reciprocal trust doctrine.

5. Charitable remainder trusts (CRTs)

Charitable bequests reduce the Minnesota taxable estate dollar-for-dollar. A CRT funded with appreciated assets during life provides income to the donor, avoids capital gains tax on the transfer, generates a partial charitable income tax deduction, and removes the remainder interest from the Minnesota gross estate at death. For Minnesota estates modestly above $3M with charitable intent, a CRT can push the taxable estate below the filing threshold. See Charitable Giving from an Inheritance for detailed strategy.

6. IRA beneficiary designations to charity

IRAs are included in the Minnesota gross estate AND heirs owe income tax on every distribution over the 10-year rule. Naming a charity as IRA beneficiary removes that value from the Minnesota gross estate (charitable deduction) while satisfying charitable intent tax-efficiently — the charity receives IRA funds income-tax-free. For estates where a large IRA is driving the estate above $3M, this strategy eliminates both the Minnesota estate tax and the income tax on IRA distributions simultaneously. See Inherited IRA 10-Year Rule Guide.

7. Farm estate planning — structure ownership before death

For Minnesota farm families, the $2M farm exclusion is powerful but narrow. The 3-year ownership requirement means that a farmer who transfers land to a revocable living trust or into family LLC ownership shortly before death may not satisfy the ownership test. Ownership restructuring for estate planning purposes should happen years before expected death, with attention to the timing requirements. Heirs must also be willing and able to satisfy the 3-year continued-use requirement — a heir who plans to sell the farm immediately will not benefit from the exclusion and the recapture rules will apply.

How Minnesota compares to other state estate taxes

What Minnesota estate tax means if you're an heir

1. You don't file or pay the Minnesota estate tax personally. The executor handles it from estate assets before making distributions. Minnesota estate tax is paid at the estate level, not by individual beneficiaries. If you receive $400,000 from a $5M estate after $260,000 in Minnesota estate tax, the tax was deducted from the estate before your distribution.
2. You may receive less than the gross estate value suggests. A $5M estate may owe approximately $260,000 in Minnesota estate tax; a $7M estate approximately $520,000; a $10M estate approximately $910,000. Factor this in when estimating your expected inheritance.
3. Verify the executor is filing Form M706 if the estate exceeds $3M. The filing deadline is 9 months after death, submitted to the Minnesota Department of Revenue. Late filing and late payment accrue interest. Beneficiaries have an interest in ensuring the executor is meeting these deadlines.
4. Step-up in cost basis applies regardless of estate tax. Your inherited assets receive a new cost basis equal to the date-of-death FMV under IRC §1014, regardless of any Minnesota estate tax owed. The estate tax and the step-up basis are entirely separate mechanisms. See Step-Up Basis Complete Guide.
5. Your inherited half of jointly-held property gets a step-up; the surviving spouse's pre-existing half does not. Minnesota is a common-law state. Only the decedent's share resets to date-of-death FMV. The surviving spouse's existing share retains its original cost basis.
6. IRAs face double taxation. The IRA balance was included in the Minnesota gross estate and may have contributed to estate tax being owed. As a beneficiary, you also owe income tax on every distribution over the 10-year rule. See Inherited IRA 10-Year Rule and the Drawdown Optimizer to model tax-efficient distribution strategies.
7. Farm or business illiquidity can be a problem. Minnesota estate tax is due in cash within 9 months of death. An estate primarily composed of farmland or a closely-held business may need to sell assets under time pressure or borrow to fund the tax — unless an installment election is available. Discuss liquidity options with the estate attorney early in administration.

Frequently asked questions

My parent died in Minnesota with a $2.8M estate. Is there Minnesota estate tax?

No. The Minnesota estate tax exemption is $3,000,000 per person. A $2.8M estate is fully exempt from Minnesota estate tax, and no Form M706 filing is required. Note that the gross estate is measured at date-of-death fair market value — not original purchase price. If the estate includes a Minneapolis-area home worth $750,000 at death (even if originally purchased for $150,000 in 1988), that $750,000 counts toward the $3M threshold at its current value.

My parent died with a $4M estate. How much Minnesota estate tax is owed?

Approximately $130,000, based on the 13% rate applied to the $1M excess above the $3M exemption. This is an estimate; the actual figure depends on allowable deductions (debts, mortgages, administration expenses, charitable bequests, marital deductions) and the Form M706 computation. The estate has 9 months from the date of death to file and pay. Use the Minnesota DOR's online estate tax calculator at revenue.state.mn.us for a more precise figure based on your specific estate composition.

My parents have a combined estate of $7M. How do they protect against Minnesota estate tax?

With a credit shelter trust at the first spouse's death. Without planning, the survivor inherits the full $7M, and at second death faces only one $3M Minnesota exemption — approximately $520,000 in Minnesota estate tax. With a properly funded credit shelter trust at first death ($3M sheltered in trust), the survivor's taxable estate is reduced to $4M — Minnesota estate tax approximately $130,000 — saving approximately $390,000. This requires updating the estate plan before the first death; retroactive corrections after the first spouse dies are generally not available.

Does Minnesota recognize the federal portability election?

No. The federal portability election — filed via IRS Form 706 within 9 months of death — allows the surviving spouse to add the deceased spouse's unused federal exemption to their own. Minnesota has its own independent estate tax with no portability. Each Minnesota estate gets one $3M exemption; unused exemption is permanently lost at death. This is why credit shelter trusts are the cornerstone of Minnesota estate planning for married couples.

Does my parent's Minnesota farm qualify for the farm exclusion?

Possibly. To qualify, the farm must have been owned by the decedent (or their trust) for at least 3 years before death, and the heirs who receive the property must continue to use it in qualifying agricultural operations for at least 3 years after the decedent's death. If those requirements are met, up to $2M of additional farm value can be excluded on top of the general $3M exemption — for a combined maximum of $5M. Heirs who sell the farm within 3 years trigger recapture. The executor and estate attorney must evaluate whether the specific ownership structure and use pattern satisfy the statutory requirements. The Minnesota DOR Form M706 instructions describe the documentation required to claim the exclusion.

I'm a Minnesota resident who spends winters in Arizona. Am I subject to Minnesota estate tax?

If Minnesota remains your legal domicile at death, yes — Minnesota estate tax applies to your worldwide estate above $3M. Changing domicile to Arizona (or Florida, South Dakota, etc.) requires more than renting or buying a home there. Minnesota examines the totality of facts: where you spend the majority of your time, where your primary relationships are, where you are registered to vote, where you maintain professional licenses and medical relationships, and where the center of your life resides. Meeting a 183-day threshold is helpful but not sufficient on its own. A proper domicile change requires the center of one's life to actually move — not just one's mailing address. If the Minnesota DOR disputes a domicile change after death, the estate tax exposure plus interest can be substantial.

Does Minnesota have an inheritance tax in addition to the estate tax?

No. Minnesota does not have a separate inheritance tax. The Minnesota estate tax is paid by the estate before distribution — not by individual heirs based on their relationship to the decedent. As a beneficiary, you do not personally owe Minnesota tax on amounts you inherit. See Inheritance Tax by State for a national comparison. Of the five states that impose inheritance taxes (New Jersey, Pennsylvania, Maryland, Nebraska, and Kentucky for non-family beneficiaries), none is Minnesota.

Get matched with an advisor who understands Minnesota estate planning

Minnesota's $3M estate tax threshold — unchanged and unindexed for inflation — is quietly exposing upper-middle-class Twin Cities families to a significant state-only estate tax liability with zero federal exposure. A Minneapolis couple with a home in Edina, two 401(k)s, a brokerage account, and life insurance may be closer to the $3M line than they realize. Without a credit shelter trust, they risk paying hundreds of thousands of dollars in Minnesota estate tax that could have gone to their children. A fee-only financial advisor specializing in inheritance and estate planning can model your Minnesota estate tax exposure under current law, evaluate whether your existing estate plan captures both spouses' $3M exemptions, coordinate with your estate attorney on credit shelter trust funding, and structure a systematic gifting program to reduce the Minnesota taxable estate over time.