How to Notify the IRS When a Business Owner Dies

Death Data Does Not Replace IRS Filing Steps

IRS records may receive death information, but that does not file required returns, pay taxes, or identify the person authorized to handle the deceased's tax matters. Required returns and payments remain due, and penalties can accrue when applicable.

The executor or personal representative should identify which IRS filings and payments apply. Failure to file or pay can trigger penalties; separate rules can make a fiduciary personally liable in certain cases, including some distributions of estate assets before federal taxes are paid and willful failure by a responsible person to pay withheld payroll taxes.

Step 1: File IRS Form 56

Form 56 (Notice Concerning Fiduciary Relationship) notifies the IRS that a fiduciary — the executor, administrator, or trustee — is acting for the deceased person or estate. The form does not create that legal authority; it comes from the court appointment, trust, or other governing instrument.

For a court-appointed executor or administrator, file Form 56 as soon as you receive Letters Testamentary or Letters of Administration. A trustee or other fiduciary should file after the fiduciary relationship is established. You will need:

• The deceased's Social Security Number and any EINs associated with their businesses
• Your own identifying information as the fiduciary
• Proof of fiduciary authority; court-appointed fiduciaries should attach current Letters Testamentary, Letters of Administration, or a court certificate
• The date of the decedent's death

For paper filing, mail the form to the IRS service center where the person for whom you are acting must file tax returns. Form 56 is also supported through IRS Modernized e-File using participating tax software.

Form 56 cannot be used to request copies of IRS notices or correspondence. To update an address of record, use Form 8822 or Form 8822-B as applicable; until that change is processed, mail may continue to go to the address on file.

Step 2: Apply for an Estate EIN

The decedent's Social Security Number remains in use for the final Form 1040. The estate is a separate tax entity and generally needs its own Employer Identification Number for estate accounts and returns.

Apply for the estate EIN using IRS Form SS-4. U.S. applicants can apply online, by fax, or by mail; telephone applications are for international applicants. Online applicants generally receive the EIN immediately. On the application, select "estate" as the type of entity, and enter the fiduciary as the estate's executor or administrator.

You will need the estate EIN to:

• Open an estate bank account
• File the estate's income tax return (Form 1041)
• Receive payments owed to the estate
• Give the estate's EIN to payers reporting income to the estate; a continuing corporation or LLC generally keeps its own EIN

Step 3: File the Final Personal Income Tax Return

The deceased's final Form 1040 covers January 1 through the date of death. It is due on the normal filing deadline for the year of death (April 15 of the following year, or October 15 with an extension).

Write "DECEASED" across the top of the return, followed by the decedent's name and date of death. If the deceased was married, the surviving spouse may file a joint return for the year of death if eligible under the filing rules.

Report all income earned through the date of death — wages, business income, investment income, rental income. Income earned by the estate after the date of death goes on Form 1041, not on the final 1040.

For sole proprietors, the final Schedule C covers business income and expenses through the date of death. For S-corp or partnership owners, the K-1 from the business will be split: the portion through the date of death goes on the final 1040, and the remainder goes to the estate or successor.

Step 4: File the Estate Income Tax Return (Form 1041)

Every domestic estate with gross income of $600 or more during the tax year generally must file Form 1041. A return is also required if the estate has a nonresident alien beneficiary, regardless of gross income. Income can include business operations continuing under the executor's authority, rental properties, investment earnings, or other sources.

The estate's tax year can begin on the date of death and end on any month-end within 12 months (it does not have to follow the calendar year). Choosing a fiscal year-end strategically can defer the first filing deadline and provide more time to gather information.

The estate is taxed at trust tax rates, which compress into the highest bracket much faster than individual rates. In 2026, estates and trusts reach the 37% bracket at income levels far below what an individual would. This makes income distribution planning critical — distributing income to beneficiaries shifts the tax burden to their individual returns, where it may be taxed at lower rates.

Step 5: Handle the Business EIN

The IRS does not cancel an Employer Identification Number. The EIN remains a permanent record. But you can — and should — deactivate the associated business tax account once all final returns are filed and all balances are paid.

To close the account, send a letter to the IRS that includes:

• The business name and EIN
• The business address
• The reason for closure (death of the owner)
• A copy of the EIN assignment notice, if available

The IRS cannot close the business tax account until all necessary returns have been filed and taxes owed have been paid.

What Happens If You Miss These Steps

For income tax returns subject to these penalties, the failure-to-file penalty is generally 5% per month up to 25%, and the failure-to-pay penalty is generally 0.5% per month, subject to exceptions and other rules. Under the Trust Fund Recovery Penalty (IRC Section 6672), a person responsible for collecting, accounting for, and paying over withheld payroll taxes may be personally liable if they willfully fail to do so; executor status alone does not create that liability.

The Small Business Owner Dies guide includes a complete IRS notification checklist with filing deadlines, form numbers, and mailing addresses for every required submission.