Inheriting a business means stepping into an ownership interest that carries tax obligations, governance rules, debts, and a stack of filings that have to happen in a workable order. For 2026, the federal estate tax exemption sits at $15 million per individual, so most inherited businesses will not owe federal estate tax at all.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 The harder part is usually everything else: how the interest actually reaches you, what it’s worth, what obligations come with it, and what you have to file to keep the business operating.
How the Ownership Interest Reaches You
The path depends on the paperwork the owner left behind. A will sends the interest through probate, a court-supervised process that is public and slow. Simple estates commonly take six to nine months; contested or complex ones can run past two years.
A revocable living trust avoids probate. If the owner transferred the business into the trust during their lifetime, the successor trustee can manage or distribute the interest without the court. Irrevocable trusts remove the business from the taxable estate entirely, at the cost of the owner giving up lifetime control.
If the business has co-owners, the governing documents often matter more than the will. A buy-sell agreement is a contract among the owners that dictates what happens to a departing owner’s share. Under a cross-purchase structure, the surviving owners buy the deceased’s share directly from the estate. Under an entity-purchase or redemption structure, the company itself buys the share back. These agreements typically set a price formula or trigger a fresh appraisal, and they override anything the will says about the business.
The trap most families don’t see coming is what happens when there is no buy-sell or operating agreement covering death. Default state law fills the silence, and the results vary. In some states, an heir of a deceased LLC member receives only an economic interest — the right to distributions — without any voting or management rights unless the other members consent. In others, a single-member LLC with no succession provision can be forced to dissolve. You may not automatically step into the owner’s shoes; you may need the remaining owners’ approval just to participate.
The Stepped-Up Basis
The single most valuable tax feature of an inherited business interest is the stepped-up basis. Your cost basis in the interest resets to its fair market value on the date of the owner’s death.2Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent If the founder started the company with $50,000 and it was worth $2 million at death, your basis is $2 million. Sell for $2 million the next month and you owe no capital gains tax. Decades of appreciation the original owner would have been taxed on are wiped out.
There is an exception that catches heirs of partnerships and S corporations by surprise. Property classified as “income in respect of a decedent” gets no step-up.3Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent – Section c In a partnership, the deceased partner’s share of unrealized receivables and substantially appreciated inventory falls into this category. If the business had $300,000 in unpaid invoices at death, those receivables are taxable income to you when collected. No reset, no discount. That can produce an unexpected income tax bill in the year the estate settles or the business sells.
The executor also has the option of an alternate valuation date, six months after death instead of the date of death.4Office of the Law Revision Counsel. 26 USC 2032 – Alternate Valuation It’s only available if it decreases both the gross estate and the total estate tax. For a business whose value dropped in the six months after the owner died, this can lower the estate tax bill, but it also lowers your stepped-up basis.
Federal and State Estate Tax
Federal estate tax applies to everything the deceased owned above the lifetime exemption: business interests, real estate, investments, and other assets combined. The 2026 basic exclusion is $15 million per individual, made permanent by the One, Big, Beautiful Bill Act signed in July 2025, with annual inflation adjustments starting in 2027.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 Married couples can combine exemptions through portability, sheltering up to $30 million together. Estates above the threshold pay at rates that climb quickly to 40 percent on the excess.5Office of the Law Revision Counsel. 26 USC 2001 – Imposition and Rate of Tax
The estate tax return (Form 706) is due nine months after the date of death.6eCFR. 26 CFR 20.6075-1 – Returns; Time for Filing Estate Tax Return Filing extensions are available, but interest on unpaid tax runs from the original nine-month mark. Check the state where the deceased lived too. Several states impose their own estate or inheritance tax with exemption thresholds far below the federal level, sometimes as low as $1 million, so an estate that owes nothing federally can still face a state bill.
Relief When the Business Dominates the Estate
Congress built specific relief provisions into the tax code because business interests are hard to convert to cash on a nine-month deadline. If the business is a large share of the estate, these can be the difference between keeping it running and selling it to pay the IRS.
Under Section 6166, when a closely held business exceeds 35 percent of the adjusted gross estate, the executor can elect to pay the estate tax attributable to that business in installments: up to five years of interest-only payments followed by up to ten annual installments of principal and interest, stretching the payment window to roughly 14 years.7Office of the Law Revision Counsel. 26 USC 6166 – Extension of Time for Payment of Estate Tax Where Estate Consists Largely of Interest in Closely Held Business “Closely held” here means the estate owns at least 20 percent of the capital interest (partnerships) or 20 percent of voting stock (corporations), or the entity has 45 or fewer owners. Sole proprietorships qualify automatically. The election has to be made on a timely filed estate tax return.
Section 303 lets a corporation redeem enough stock from the estate to cover estate taxes, funeral expenses, and administration costs, and treats the redemption as a sale rather than a taxable dividend.8Office of the Law Revision Counsel. 26 USC 303 – Distributions in Redemption of Stock to Pay Death Taxes The corporation’s stock in the gross estate must exceed the same 35 percent threshold.
For estates that include farmland or real property used in a closely held business, Section 2032A allows valuing the property at its actual business use rather than its highest-and-best-use market value.9Office of the Law Revision Counsel. 26 USC 2032A – Valuation of Certain Farm, Etc., Real Property The reduction is capped at a base amount of $750,000, adjusted for inflation. The catch: if the heir sells the property or changes its use within ten years, the estate owes a recapture tax on the difference.
Getting the Business Valued
Every calculation above starts with one number: the fair market value at the date of death. Get it wrong and you’re either fighting the IRS over an undervaluation or paying more estate tax than you had to.
A qualified appraiser will generally want three to five years of financial statements — balance sheets, income statements, and federal tax returns. They’ll assess tangible assets like real estate and equipment along with intangibles like customer contracts, intellectual property, and market reputation. Appraisal fees for small to mid-sized businesses commonly run from a few thousand dollars to $50,000 or more for complex enterprises with multiple locations or business lines.
Two adjustments often reduce the taxable value substantially. A minority interest discount applies when the inherited share doesn’t carry control: a 30 percent stake in an LLC is worth less per unit than a 100 percent stake because the minority holder can’t decide anything alone. A lack-of-marketability discount reflects that shares in a private company can’t be sold on an exchange. The discounts stack, so a nominal $5 million minority interest can be valued at meaningfully less for estate tax purposes. The IRS scrutinizes these adjustments, and the appraiser needs solid comparable data to defend them.
Life Insurance Funding and the Connelly Problem
Most funded buy-sell agreements use life insurance to generate cash the moment an owner dies. The death benefit is generally received income-tax-free.10Office of the Law Revision Counsel. 26 USC 101 – Certain Death Benefits The choice between a cross-purchase and a redemption structure carries tax consequences that became much sharper after the Supreme Court’s 2024 decision in Connelly v. United States.
In Connelly, a corporation owned life insurance on its two shareholders to fund a redemption. When one shareholder died, the company received $3.5 million to buy back his shares. The estate argued the redemption obligation offset the insurance proceeds. The Court disagreed, holding that the insurance proceeds were a corporate asset that increased the company’s fair market value, and the obligation to redeem the shares did not reduce that value.11Supreme Court of the United States. Connelly v. United States, No. 23-146 The insurance meant to pay the buyout inflated the estate tax bill instead.
Cross-purchase agreements sidestep this problem because the surviving owners, not the company, own the policies. The proceeds never touch the corporate balance sheet. The surviving owners also get a basis increase equal to the price they pay for the deceased owner’s interest, reducing their capital gains if they later sell. In an entity-purchase structure, surviving owners get no basis increase. If you’re inheriting into a business with a redemption-style agreement funded by company-owned life insurance, this is worth a hard look with the estate’s advisors before any redemption closes.
Debts and Liabilities That Come With the Business
Inheriting the ownership interest means inheriting the obligations attached to it. Outstanding loans, vendor payables, lease commitments, and pending litigation all travel with the interest. You’re not personally liable beyond the value of what you inherited, assuming the entity structure has been respected, but those obligations reduce the practical value of your inheritance and can create cash-flow pressure quickly.
Commercial real estate loans deserve immediate attention. Federal law bars lenders from enforcing a due-on-sale clause when residential property (fewer than five units) transfers to a relative because of the borrower’s death.12Office of the Law Revision Counsel. 12 USC 1701j-3 – Preemption of Due-on-Sale Prohibitions That protection does not extend to commercial property. If the business owns a warehouse, office, or retail space with a mortgage, the lender may have the right to call the loan due on the ownership change. Pull the commercial loan documents early and open a conversation with the lender before an acceleration notice arrives.
During probate, the executor publishes a notice to creditors that starts a claims window, commonly two to eight months depending on the state. Claims filed after the deadline are generally barred. That protects you by creating a hard cutoff, but only if the executor actually publishes the notice and follows local rules.
The Administrative Sequence
The filings involved in a transfer can feel endless, and some of them depend on others being finished first.
Employer Identification Number
Whether you need a new EIN depends on the entity. If the deceased was a sole proprietor and the estate keeps operating the business, the estate needs its own EIN.13Internal Revenue Service. When to Get a New EIN Corporations and LLCs usually keep their existing EIN through an ownership change because the entity continues to exist as a separate legal person. A new EIN is required if the business changes its structure, such as converting from an LLC to a corporation.14Internal Revenue Service. Get an Employer Identification Number The online application is typically approved immediately.
State Filings, Licenses, and Signatory Authority
A common misconception is that you file articles of amendment with the Secretary of State to record an ownership change. In most states, ownership changes in corporations and LLCs are internal matters governed by the bylaws or operating agreement, with no state filing required for the transfer itself. What often does need updating is the annual report or statement of information, which lists officers, directors, or managers. If you’re stepping into a management role, those names have to be current. Fees for these updates commonly run $25 to $150.
You may also need to update the registered agent if the deceased was serving in that role, renew any professional licenses that were tied to the deceased personally, and update local business permits with the city or county clerk. Bank accounts, vendor contracts, and insurance policies all need updated signature authority. Each of these changes typically requires a death certificate plus either letters testamentary from the probate court or a trustee certification from the trust.
Beneficial Ownership Reporting
The Corporate Transparency Act originally required most small businesses to report their beneficial owners to the Financial Crimes Enforcement Network. As of March 2025, FinCEN issued an interim final rule exempting all entities formed in the United States from the reporting requirement.15Financial Crimes Enforcement Network. Beneficial Ownership Information Reporting Only foreign entities registered to do business in the U.S. are currently required to file. Heirs of domestic businesses do not need to file a beneficial ownership report under the current rules, though this area of law has been in flux and is worth checking again before you rely on it.