Minnesota Estate Tax Form for Inherited Property

If you've recently lost a family member and inherited property in Minnesota, you may be facing a form you've never seen before the Minnesota estate tax return. Filling it out correctly matters because mistakes can delay property transfers, trigger penalties, or cost your family thousands of dollars in unnecessary taxes. This guide walks you through exactly how to fill out the Minnesota estate tax form for inherited property, section by section, so you can file with confidence.

What Is the Minnesota Estate Tax Form for Inherited Property?

The Minnesota estate tax form officially Form M706 (Minnesota Estate Tax Return) is filed by the executor or personal representative of a deceased person's estate. It reports the total value of everything the decedent owned at death, including real estate, bank accounts, investments, and personal property. When you inherit property in Minnesota, the estate may owe state estate tax depending on the total value of the estate.

Maintaining an accurate and complete estate inventory is essential for proper tax reporting. Under Minnesota law, the estate tax applies to estates with a value of $3 million or more for deaths occurring in 2024, according to the Minnesota Department of Revenue. This is significantly lower than the federal exemption of over $13 million, so estates that wouldn't owe federal tax may still owe Minnesota estate tax.

When Do You Need to File the Minnesota Estate Tax Return?

You need to file Form M706 if the decedent was a Minnesota resident and the gross estate exceeds the state exemption threshold. You also need to file if the decedent owned real estate or tangible personal property located in Minnesota, even if they lived in another state.

The filing deadline is nine months after the date of death. You can request a six-month extension using Form M706EXT, but any tax owed is still due by the original nine-month deadline, and interest accrues on late payments.

Non-resident beneficiaries who inherit Minnesota property have their own set of filing considerations. If you're a beneficiary living outside the state, you may want to review the filing requirements for non-resident beneficiaries to understand what applies to your situation.

What Documents Do You Need Before Filling Out the Form?

Gather these documents before you start completing Form M706:

Death certificate certified copy from the Minnesota county where the death occurred
Property appraisals fair market value of all real estate and significant assets as of the date of death
Financial statements bank accounts, brokerage accounts, retirement accounts, and life insurance policies
Prior gift tax returns if the decedent made taxable gifts during their lifetime
Existing estate plans wills, trusts, and beneficiary designations
Outstanding debts mortgages, liens, medical bills, and funeral expenses
Previous tax returns federal and state income tax returns for the decedent

Having these ready before you begin prevents the most common filing delays. For a broader look at the paperwork involved, this step-by-step guide to Minnesota probate court inheritance documents covers the full probate process alongside the tax filing.

How Do You Fill Out Minnesota Estate Tax Form M706 Step by Step?

Section 1: Decedent Information

Start with the basics. Enter the decedent's full legal name, Social Security number, date of death, domicile (county and state), and the executor's contact information. If there's no will and no court-appointed representative, the person filing should list themselves with a note explaining their authority.

Section 2: Gross Estate Valuation

This section reports everything the decedent owned. Each category requires a value as of the date of death:

Real estate List all property addresses, legal descriptions, and fair market values. For inherited property, you'll need a professional appraisal or a recent comparable market analysis. The value used is what the property was worth on the date of death, not what it's worth today.
Stocks, bonds, and financial accounts Use the date-of-death value from financial institutions.
Life insurance Include policies the decedent owned on their own life, even if the beneficiary is someone else.
Retirement accounts IRAs, 401(k)s, and pensions are included in the gross estate.
Personal property Vehicles, jewelry, art, furniture, and collectibles.
Jointly held property The full value of jointly held real estate or accounts is reported, with deductions available for the surviving co-owner's contribution.
Trusts Property in revocable living trusts is included in the gross estate.

Section 3: Deductions

After totaling the gross estate, you subtract allowable deductions to arrive at the taxable estate:

Funeral expenses
Administrative expenses executor fees, attorney fees, accounting fees, and court costs
Outstanding debts mortgages, credit cards, medical bills
Marital deduction property passing to a surviving spouse qualifies for an unlimited marital deduction
Charitable deductions gifts to qualifying charities

If you're handling a situation where most or all assets pass to a surviving spouse, the instructions for surviving spouse transfers explain how the marital deduction works and which forms to complete.

Section 4: Tax Calculation

Multiply the taxable estate by the applicable Minnesota estate tax rate. Minnesota uses a graduated rate structure that starts at 13% and goes up to 16% for larger estates. The Minnesota Department of Revenue provides a tax table in the Form M706 instructions to help you calculate the exact amount owed.

Section 5: Credits and Payments

Report any prior payments, credits for estate taxes paid to other states, and the state death tax credit. The final line shows whether the estate owes additional tax or is due a refund.

How Is Inherited Real Estate Valued on the Form?

This is where many filers get stuck. Minnesota requires fair market value as of the date of death not the purchase price, not the assessed value for property taxes, and not the current listing price.

For residential property, a licensed appraisal is the strongest documentation. For commercial property or vacant land, you may need a specialized appraiser familiar with the property type. If the estate qualifies for the federal alternate valuation date (six months after death), Minnesota generally follows the same election, but you must check the current instructions.

Practical example: Your mother owned a home in Hennepin County. She bought it for $180,000 in 2005, and the county assessor values it at $340,000. A licensed appraiser determines the fair market value at her date of death is $410,000. You report $410,000 on the estate tax form not the purchase price and not the assessed value.

What Are Common Mistakes When Filing?

Filing errors can trigger audits, penalties, and delays in transferring property to beneficiaries. The most frequent mistakes include:

Using assessed value instead of fair market value County property tax assessments rarely match true market value. Get a real appraisal.
Missing the filing deadline Even if no tax is owed, failing to file on time can result in penalties and interest.
Forgetting life insurance or retirement accounts These are part of the gross estate even though they pass outside the will.
Not reporting gifts made within three years of death Minnesota follows federal rules on certain gifts made near death.
Incorrectly claiming the marital deduction Only property passing outright or through qualifying trusts to a surviving spouse qualifies.
Failing to file when required Some executors assume the estate is too small, but the Minnesota threshold is much lower than the federal one.

Many of these errors are avoidable. If you're filing with the county as part of probate, our guide on common mistakes when filing Minnesota inheritance paperwork covers additional pitfalls specific to the county filing process.

Can You File the Minnesota Estate Tax Form Online?

As of the most recent filing instructions, Minnesota accepts Form M706 by mail. You can download the form and instructions from the Minnesota Department of Revenue website. Some tax professionals use e-filing software that supports Minnesota estate tax returns, but the state has historically required paper filing for estate tax returns. Check the current instructions for any updates to electronic filing options.

Mail the completed form to:

Minnnesota Department of Revenue
Mail Station 3410
St. Paul, MN 55146-3410

How Long Does It Take to Process the Estate Tax Return?

Processing times vary. Simple estates with complete documentation may receive a closing letter within four to six months. Complex estates, especially those with real estate, business interests, or valuation disputes, can take 12 months or longer. You need the closing letter (or a tax clearance) before the court can fully close the estate and transfer property titles to beneficiaries.

Practical Checklist for Filing

Obtain the certified death certificate
Determine whether the gross estate exceeds Minnesota's $3 million exemption
Gather all financial statements and property records
Order professional appraisals for all real estate
Calculate the gross estate total
List and total all allowable deductions
Complete Form M706 using the tax table for the taxable estate
Attach all required schedules and supporting documents
Review for accuracy double-check valuations, Social Security numbers, and math
File by the nine-month deadline (or request an extension)
Keep copies of everything for the estate's records
Follow up with the Department of Revenue for the closing letter

Tip: If the estate includes property in multiple states or the total value is close to the exemption threshold, hire a Minnesota estate tax attorney or CPA. The cost of professional help is an administrative expense deductible on the return and it's far less than the cost of fixing a filing error after the fact.