What Is an Estate Number and How Do You Get One?

An estate number is the federal Employer Identification Number (EIN) that the IRS assigns to a deceased person’s estate so the estate can hold assets, earn income, and file its own tax returns under a nine-digit ID of its own. You need one because the decedent’s Social Security Number stops working for financial activity after the date of death, and you get one for free from the IRS by submitting Form SS-4, most quickly through the online application at IRS.gov/EIN.1Internal Revenue Service. Information for Executors

Why the Estate Needs Its Own Number

After someone dies, income their assets continue to generate no longer belongs to them. Rent checks, dividends, bank interest, and business receipts flow into a new legal entity: the estate. The IRS treats that entity the way it treats a business or a trust. It gets an EIN, files returns, and pays tax on what it earns.2Internal Revenue Service. Employer Identification Number

That EIN replaces the decedent’s SSN for every post-death purpose. Banks require it to open an estate account. The IRS requires it on every estate filing. Brokerage firms, tenants, and anyone else reporting payments to the estate will ask for it. Without one, an executor has no clean way to collect income, pay creditors, or distribute assets.

When You Actually Need One

Not every death triggers the need for an EIN, but most estates that pass through probate will need one. The clearest triggers:

  • The estate earns more than $600 in gross income during any tax year. That threshold requires a Form 1041 return, which needs an EIN.3Internal Revenue Service. File an Estate Tax Income Tax Return
  • You need to open an estate bank account. Banks won’t open one without an EIN.
  • The decedent ran a business. The estate needs its own EIN to keep operating and reporting wages after the owner’s death.4Internal Revenue Service. Responsibilities of an Estate Administrator

If every asset passes directly to beneficiaries through joint ownership, beneficiary designations, or payable-on-death accounts, and nothing flows through probate, an EIN may not be necessary. Once the estate itself holds assets or collects income, it is.

How to Apply

The IRS issues estate EINs at no charge. Apply on Form SS-4. The fastest route is the IRS online application, which assigns the number immediately.5Internal Revenue Service. Instructions for Form SS-4 – General Instructions The online tool operates during these Eastern Time hours:6Internal Revenue Service. Get an Employer Identification Number

  • Monday through Friday, 6:00 a.m. to 1:00 a.m. the next day
  • Saturday, 6:00 a.m. to 9:00 p.m.
  • Sunday, 6:00 p.m. to midnight

If you can’t use the online tool, fax the completed Form SS-4 to 855-641-6935. The IRS faxes back a confirmation with the EIN in about four business days. You can also mail the form to Internal Revenue Service, Attn: EIN Operation, Cincinnati, OH 45999, though mail takes several weeks.2Internal Revenue Service. Employer Identification Number

What to Have Ready

  • The legal name of the estate. This is usually the decedent’s name followed by “Estate,” such as “John Smith Estate.”
  • The responsible party’s full name and Social Security Number. That’s the executor, administrator, or personal representative, and it must be an individual, not a firm.5Internal Revenue Service. Instructions for Form SS-4 – General Instructions
  • The decedent’s Social Security Number, which links the estate to the deceased person on the form.
  • The date of death. This is the date the estate was created and starts the estate’s tax year.5Internal Revenue Service. Instructions for Form SS-4 – General Instructions

Skip the Paid Sites

Because the IRS provides EINs at no cost, any site charging a fee is a third-party service, not the government. The Federal Trade Commission has warned that some of these sites charge up to $300 and mimic IRS branding with similar logos, color schemes, and “IRS” in their domain names.7Federal Trade Commission. FTC Warns Operators of Websites that Charge for an Employer Identification Number and Claim Affiliation with the IRS The real application lives at IRS.gov/EIN. If the address doesn’t end in .gov, it isn’t the IRS.

Using the Number During Administration

Once the EIN is issued, it becomes the estate’s identity for every financial interaction. Open a dedicated bank account in the estate’s name using the EIN, the death certificate, and proof of your appointment as executor. Estate income flows into that account, debts are paid from it, and distributions go out of it. Keeping estate money separate from personal money is one of an executor’s basic duties, and the EIN is what makes that separation possible.

The Estate’s Income Tax Return

Any estate earning more than $600 in gross income during a tax year must file Form 1041, the U.S. Income Tax Return for Estates and Trusts. That income can come from bank interest, dividends, rent, or business profits.3Internal Revenue Service. File an Estate Tax Income Tax Return The EIN appears on every return.

Schedule K-1s to Beneficiaries

When the estate distributes income to beneficiaries, each one receives a Schedule K-1 showing their share of income, deductions, and credits, which they report on their individual returns.8Internal Revenue Service. Instructions for Schedule K-1 (Form 1041) for a Beneficiary Filing Form 1040 or 1040-SR The estate’s EIN appears on every K-1, tying the distribution back to the estate’s return.

Estate Income Tax Is Not the Estate Tax

These get confused constantly. The estate income tax on Form 1041 applies to money the estate earns after death. The estate tax on Form 706 applies to the total value of everything the decedent owned at death. Two separate obligations, both using the same EIN.

The federal estate tax only reaches very large estates. For 2026, the basic exclusion amount is $15,000,000.9Internal Revenue Service. What’s New – Estate and Gift Tax Under that threshold, no federal estate tax return is required. The income tax return, triggered by just $600 in post-death income, comes up far more often.

Deadlines and Late Penalties

For a calendar-year estate, Form 1041 is due April 15 of the following year. A fiscal-year estate files by the 15th day of the fourth month after its tax year ends. Form 7004 gives an automatic five-and-a-half-month extension to file, but not to pay.10Internal Revenue Service. 2025 Instructions for Form 1041 and Schedules A, B, G, J, and K-1

Missing the deadline without an extension triggers a failure-to-file penalty of 5% of the unpaid tax per month, up to 25%. If the return is more than 60 days late, the minimum penalty is $525 or 100% of the unpaid tax, whichever is less.11Internal Revenue Service. Failure to File Penalty The penalty falls on the estate, but as executor you are personally responsible for making sure the return gets filed.

Closing Out the EIN

The EIN doesn’t expire on its own once the estate winds down. On the final Form 1041, check the “Final return” box in Item F on page one, and check the “Final K-1” box on each beneficiary’s Schedule K-1.10Internal Revenue Service. 2025 Instructions for Form 1041 and Schedules A, B, G, J, and K-1 Then file Form 56, Notice Concerning Fiduciary Relationship, to notify the IRS your role has ended.12Internal Revenue Service. Instructions for Form 56 Skipping that step can leave you receiving IRS correspondence about the estate long after distribution.

State Rules Are Separate

The federal EIN covers your dealings with the IRS. Some states require a separate state-level tax registration for the estate, and a handful impose their own estate or inheritance taxes with thresholds different from the federal exemption. Check with your state’s department of revenue early, before assets are distributed, so a missed state filing doesn’t surface after the fact.