This article reflects federal IRS rules as of June 2026 and covers tax year 2025 (the 2026 filing season). State probate and tax rules vary, so confirm current figures with the relevant state agency before you file. This guide is educational and is not a substitute for advice from a licensed CPA, tax attorney, or estate attorney for your specific situation.
Quick Answer
Apply online at the IRS EIN Assistant using Form SS-4. The estate’s executor or administrator answers a few questions, gives the decedent’s name and Social Security number, and receives the nine-digit EIN free in minutes. For 2025 estates, the online tool is the fastest, no-cost method.
You just lost someone, and now a bank or brokerage is asking for the estate’s “tax ID” before it will release a single dollar. That number is the estate’s Employer Identification Number (EIN), and without it you cannot open an estate bank account, collect the decedent’s final assets, or file the estate’s income tax return. The fix is free and fast, but only if you complete it correctly the first time.
Roughly 2.8 million people die in the United States each year, and a large share of their estates need an EIN to settle even small affairs. Getting it wrong, applying twice, or naming the wrong “responsible party” can stall the whole estate for weeks. Here is exactly how to get it right.
- 🧾 How to apply online, by fax, by mail, or (for foreign filers) by phone, and which method fits your deadline.
- 🪪 Who counts as the “responsible party” and why naming the wrong person triggers IRS notices.
- 💵 A fully worked example showing when the estate must file Form 1041 and how the EIN ties into it.
- ⚖️ The difference between the federal EIN and your state’s probate and tax filings.
- ❌ The seven mistakes that delay estate accounts and how to avoid every one.
What an Estate EIN Actually Is
An EIN is a nine-digit federal tax identification number formatted like 12-3456789, the same kind of number the IRS assigns to businesses, trusts, and estates, as the Instructions for Form SS-4 explain. When a person dies, their estate becomes a brand-new legal entity that is separate from both the living person who died and from you, the person settling it. That new entity needs its own tax ID because the decedent’s Social Security number “dies” with them for most post-death purposes.
The estate uses the EIN to do three core things: open an estate bank or brokerage account, report income the assets earn after the date of death, and file the estate’s income tax return when required. Think of it as the estate’s own Social Security number. Banks will not let you pool the decedent’s cash, sell their stock, or deposit a final paycheck into an account tied to a dead person’s SSN, so the EIN is the key that unlocks the money.
The consequence of skipping it is concrete. Without an EIN, interest, dividends, or rent earned after death has nowhere proper to be reported, and a bank will refuse to open the estate account it legally requires. A common misconception is that the surviving spouse or executor can just keep using the decedent’s SSN, but that mixes a dead person’s identity with a live entity and invites IRS mismatch notices. Your next step is simple: confirm you are the legally authorized fiduciary, then apply for the EIN before you visit the bank.
Do You Even Need an Estate EIN?
Not every death requires an estate EIN, so this is the first question to settle before you apply. You need one when the estate will hold assets in its own name, earn income after death, or file a federal income tax return. You may not need one if everything passes outside probate and earns nothing.
When You Definitely Need One
You need an estate EIN when the estate must file Form 1041, the U.S. Income Tax Return for Estates and Trusts. An estate must file Form 1041 for tax year 2025 if it has gross income of $600 or more for the year, or if any beneficiary is a nonresident alien, according to the Form 1041 instructions. You also need one to open an estate checking account, which nearly every bank requires before depositing a final paycheck, tax refund, or sale proceeds.
The consequence of not getting one when required is that the estate cannot file a valid return, and penalties for late filing accrue from the original due date. For a calendar-year estate, the 2025 Form 1041 is due by April 15, 2026, with a five-and-a-half-month extension available on Form 7004. Your next step is to estimate whether the estate’s post-death income will reach $600, and if it might, apply now rather than waiting.
When You Might Not Need One
You may not need an estate EIN when all assets pass directly to named beneficiaries outside probate, such as life insurance with a beneficiary, payable-on-death bank accounts, or jointly held property with right of survivorship. In those cases, the money never flows through an estate that earns income, so no Form 1041 and no EIN are required. A surviving spouse filing a joint final Form 1040 for the year of death uses Social Security numbers, not an estate EIN.
The misconception here is that every death automatically needs an estate tax ID, which leads people to apply when they do not have to. The consequence of an unnecessary EIN is minor but real: you create a federal tax account that the IRS may expect a return for. Your next step is to map where each asset goes, and if everything passes by beneficiary designation with no probate, you can likely skip the EIN.
Which Situation Applies to You?
Estates differ, and the right path depends on your role and the assets. Use this branch to find the part of the article that fits you.
- You are the court-appointed executor or administrator with a probate estate. You need the EIN, you are the “responsible party,” and you should read the step-by-step section next.
- You are a surviving spouse with everything held jointly or by beneficiary designation. You may not need an EIN at all; read “When You Might Not Need One” above.
- The decedent had a living trust holding most assets. The trust may need its own EIN after death, which is a separate application from the estate; see the FAQs on trusts.
- You live outside the United States or have no U.S. SSN/ITIN. You cannot use the online tool and must apply by phone or fax; see “Apply by Phone” and “Apply by Fax.”
- The estate owes federal estate tax (very large estates). That is a separate Form 706 matter on top of the EIN; see “Estate Income Tax vs. Estate Tax.”
How to Get the EIN, Step by Step
The application is Form SS-4, and the IRS offers four ways to file it, but it recommends applying online whenever possible. Use only one method per estate so you do not accidentally receive two EINs for the same entity, a rule the SS-4 instructions state plainly.
Step 1: Gather Your Information First
Before you open the application, collect the decedent’s full legal name and Social Security number, the date of death, the estate’s mailing address, and your own name and SSN or ITIN as the fiduciary. You will also choose the estate’s accounting year. Having these ready prevents a stalled session, because the online tool times out after fifteen minutes of inactivity and does not save your progress.
The consequence of missing data is a lost session and a restart, which matters because the IRS limits EIN issuance to one per responsible party per day. Your next step is to keep the decedent’s Social Security card or final tax return in front of you so the number on line 9a matches IRS records exactly.
Step 2: Apply Online (Fastest, Free)
Go to the IRS EIN Assistant, which is open Monday through Friday during posted hours, and select “Estate” as the entity type. You answer the same questions found on Form SS-4, and at the end you can view, print, and save the EIN assignment notice immediately. The number is valid for use the moment you receive it, so you can walk into the bank that same day.
To use the online tool, the responsible party must have a valid SSN, ITIN, or EIN and a U.S. legal residence or principal place of business. The consequence of a foreign fiduciary trying to use it is rejection, which is why international filers must use the phone instead. Your next step after a successful online session is to download the CP 575 confirmation notice and store it with the estate’s records.
Step 3: Apply by Fax
If you prefer paper, complete Form SS-4, sign it, and fax it to 855-641-6935 if the estate is in one of the 50 states or D.C., per the current SS-4 instructions. The IRS generally faxes your EIN back within four business days, so include your return fax number on the form. Fax is the best middle ground when you want a paper trail but cannot wait weeks.
The consequence of leaving off your fax number is that the IRS has no way to send the number back, which restarts the clock. Your next step is to keep the signed, dated copy of Form SS-4 with your records, because the IRS may ask you to confirm it.
Step 4: Apply by Mail
To apply by mail, complete and sign Form SS-4 and send it to the Internal Revenue Service, Attn: EIN Operation, Cincinnati, OH 45999, as listed in the SS-4 instructions. Mail takes about four weeks, so the IRS advises starting at least four to five weeks before you need the number. This is the slowest option and is best only when you have no deadline pressure.
The consequence of mailing close to a filing deadline is that you may not have the EIN in time. If a return comes due first, write “Applied For” and the date you applied in the EIN space, and never substitute the decedent’s SSN. Your next step is to mail early and verify status by calling 800-829-4933.
Step 5: Apply by Phone (International Filers Only)
The IRS no longer issues EINs by phone for domestic taxpayers; phone service is reserved for applicants with no U.S. legal residence or principal place of business, who may call 267-941-1099 (not toll-free), Monday through Friday, per the SS-4 instructions. Complete Form SS-4 before you call so you can answer the representative’s questions quickly. The person calling must be authorized to receive the EIN.
The consequence of a domestic filer calling is a referral back to the online tool, wasting time. Your next step, if you are abroad, is to fill out Form SS-4 first and have the decedent’s identifying details on hand for the call.
How to Fill Out the Key SS-4 Lines for an Estate
The estate-specific lines trip people up most, so here is what each one needs, drawn from the Form SS-4 instructions.
| SS-4 Line | What to Enter for a Decedent’s Estate |
|---|---|
| Line 1 (Legal name) | The estate’s name; if it has none, enter the decedent’s name followed by “Estate,” for example “Maria Lopez Estate.” |
| Line 3 (“Care of” name) | The executor, administrator, personal representative, or other fiduciary’s name. |
| Lines 4a–4b (Mailing address) | The fiduciary’s mailing address, since correspondence and returns go here. |
| Lines 7a–7b (Responsible party) | The fiduciary’s full name and their SSN or ITIN, because for a decedent estate the responsible party is the executor or administrator. |
| Line 9a (Type of entity) | Check “Estate,” and enter the deceased person’s SSN or ITIN in the space provided. |
| Line 11 (Date acquired) | The decedent’s date of death, or the date the estate was legally funded. |
| Line 12 (Closing month of accounting year) | December for a calendar year, or another month if you elect a fiscal year. |
The “responsible party” is the human being who controls the estate’s funds, not a company or a bank, and the SS-4 instructions require a natural person here for a decedent estate. The consequence of naming the wrong party, or entering the decedent as the responsible party, is an IRS mismatch that can freeze the account. A common misconception is that the responsible party is the deceased; in fact it is you, the living fiduciary. If the responsible party ever changes, you must file Form 8822-B within 60 days, a deadline set by the SS-4 instructions.
A Fully Worked Example: When the Estate Must File
Numbers make this concrete, so here is the math the IRS will not hand you.
Suppose Harold Greene dies on March 1, 2025, leaving a brokerage account and a rental condo. After his death and before the assets are distributed, the estate earns $1,400 in dividends and $9,000 in net rental income during 2025, for $10,400 of gross income. Because that exceeds the $600 Form 1041 filing threshold for 2025, the estate must file a federal income tax return, and to file it the executor first needs an EIN.
Here is the chain in dollars and steps:
- The executor applies for the EIN online and receives it the same day, at no cost.
- The estate opens a bank account under the EIN and deposits the dividends and rent.
- The estate files Form 1041 for tax year 2025, reporting $10,400 of gross income.
- Estate income tax brackets are compressed, reaching the top 37% rate at just $15,650 of taxable income for 2025, per the Form 1041 instructions, so the estate distributes income to beneficiaries on Schedule K-1 to shift it to their lower individual rates.
The consequence of not having the EIN is that Harold’s estate cannot open the account, cannot cleanly report the $10,400, and risks late-filing penalties from the April 15, 2026 due date. The next step in this example is to apply for the EIN immediately, then track every dollar the estate earns after March 1, 2025.
Three Common Estate Scenarios
Different fact patterns lead to different answers. Here are the three most common, each as a quick reference.
Scenario A: Small Estate, No Post-Death Income
| Estate Situation | What Happens with the EIN |
|---|---|
| All assets pass by beneficiary designation or joint title, no income earned after death | Often no EIN needed; no Form 1041 because gross income is under the $600 threshold. |
| A surviving spouse files a joint final Form 1040 for 2025 | Uses SSNs, not an estate EIN, for that final individual return. |
Scenario B: Probate Estate Earning Income
| Estate Situation | What Happens with the EIN |
|---|---|
| Court appoints an executor; estate holds a brokerage account earning dividends | EIN required to open the estate account and file Form 1041 once gross income hits $600. |
| Estate sells the decedent’s home and earns interest while funds sit | EIN reports the post-death gain and interest; bank requires it before opening the account. |
Scenario C: Foreign Executor or No U.S. SSN
| Estate Situation | What Happens with the EIN |
|---|---|
| Fiduciary lives abroad with no U.S. SSN or ITIN | Cannot use the online tool; must apply by phone at 267-941-1099 or by fax. |
| Estate has a nonresident-alien beneficiary | Form 1041 is required regardless of the $600 threshold, so the EIN is mandatory. |
Three Named Examples
Linda Park is the court-appointed executor of her mother’s estate in Ohio. The estate holds a $40,000 CD that earns $1,200 in interest in 2025, so Linda applies online, gets the EIN in minutes, opens the estate account, and files Form 1041 because the income tops $600. She avoids penalties by filing by April 15, 2026.
James Carter is a surviving spouse whose late wife held everything jointly or with payable-on-death beneficiaries. Nothing flows through a probate estate and nothing earns income afterward, so James files a joint final Form 1040 for 2025 using their SSNs and never needs an estate EIN. He saves himself a needless federal tax account.
Sofia Mendez is the executor of her father’s estate but lives in Spain with no U.S. SSN. Because the online tool requires a U.S. taxpayer ID, Sofia completes Form SS-4 and calls 267-941-1099 to obtain the EIN by phone, then uses it to settle her father’s U.S. brokerage account.
Estate Income Tax vs. Estate Tax (They Are Not the Same)
People confuse these two taxes constantly, and the difference changes which forms you file. The EIN supports the income tax return, Form 1041, which taxes money the estate earns after death. The estate tax is a separate one-time tax on the transfer of a large estate, reported on Form 706.
| Feature | Estate Income Tax (Form 1041) | Federal Estate Tax (Form 706) |
|---|---|---|
| What it taxes | Income the estate earns after death | The total value transferred at death |
| Threshold for 2025 | $600 of gross income | Estates above the $13.99 million exemption per the IRS |
| Who needs the EIN | Yes, the EIN is used here | The EIN is used here too, but most estates never owe this |
The vast majority of estates owe no federal estate tax, because the 2025 exemption sits at $13.99 million per person, as the IRS notes in its estate and gift tax updates. The consequence of mixing these up is filing the wrong form or panicking over a tax you do not owe. Your next step is to recognize that nearly every estate deals only with the income side, Form 1041, and the EIN that supports it.
Federal vs. State: The EIN Is Federal Only
The EIN itself is purely federal, issued by the IRS, and it is the same number no matter which state you live in. States do not issue the estate EIN, but many run their own probate courts and impose their own death-related taxes, so the EIN is only the first layer. Always settle the federal EIN first, then handle the state overlay.
After you have the federal EIN, check three state items separately. First, your state’s probate court appoints the executor and supervises the estate, and the letters of appointment it issues are what the bank wants alongside the EIN. Second, some states levy a state estate or inheritance tax with far lower thresholds than the federal $13.99 million, so confirm your state’s rules with its department of revenue. Third, several states require a state fiduciary income tax return to mirror the federal Form 1041, using the same federal EIN.
The consequence of assuming your state follows federal rules is a missed state filing and a penalty. For example, states like Pennsylvania impose an inheritance tax that the federal system does not, while many no-tax states impose none at all. Your next step is to look up your specific state’s probate court and revenue department, because conformity genuinely varies and guessing misleads you.
Mistakes to Avoid
Each of these errors carries a real cost, so avoid all seven.
- Using the decedent’s SSN for the estate. This mixes a dead person’s identity with a live entity and triggers IRS mismatch notices that freeze accounts.
- Applying for two EINs. Using more than one method creates duplicate numbers and confused IRS records; the SS-4 rules limit you to one per responsible party per day.
- Naming the wrong responsible party. Entering the decedent or a bank instead of the living fiduciary causes the application to mismatch IRS records.
- Forgetting to file Form 1041 once income hits $600. Late filing accrues penalties from the original April 15 due date.
- Mailing the SS-4 right before a deadline. Mail takes about four weeks, so a return can come due before the EIN arrives.
- Skipping Form 8822-B after a change. A change in responsible party must be reported within 60 days, or IRS records go stale.
- Confusing estate income tax with estate tax. Filing Form 706 when you only owe income tax, or vice versa, wastes time and risks penalties.
Do’s and Don’ts
- Do apply online when eligible, because it is free and delivers the EIN in minutes.
- Do name the living fiduciary as responsible party, since the IRS requires a natural person for a decedent estate.
- Do keep the EIN confirmation notice, because banks and the IRS will ask for it later.
- Do file Form 1041 once gross income reaches $600, to avoid late-filing penalties for 2025.
- Do check your state’s probate and tax rules, since the federal EIN does not cover state filings.
- Don’t reuse the decedent’s SSN, because it invites mismatch notices and frozen accounts.
- Don’t apply more than once, since duplicate EINs muddle the estate’s records.
- Don’t list the deceased as responsible party, as that fails IRS verification.
- Don’t ignore the 60-day Form 8822-B deadline after a responsible-party change.
- Don’t pay a third party for an EIN, because the IRS issues it free and paid services add no value.
Pros and Cons of Getting an Estate EIN
- Pro: It unlocks the estate bank account, which most banks require before releasing funds.
- Pro: It cleanly separates the estate’s income from the decedent’s and the fiduciary’s, reducing IRS confusion.
- Pro: It is free and fast online, with no government fee and same-day issuance.
- Pro: It enables proper Form 1041 filing, keeping the estate compliant.
- Pro: It protects the fiduciary, by routing post-death income through the estate, not your personal SSN.
- Con: It creates an open tax account the IRS may expect a return for, even a final zero return.
- Con: It adds a filing obligation once income reaches the $600 threshold.
- Con: It requires accurate fiduciary information, and errors cause delays.
- Con: Foreign fiduciaries cannot apply online, slowing the process.
- Con: It does not cover state requirements, so you still face separate state filings.
What to Do Next
Take these steps in order to settle the EIN and the filings that follow it.
- Confirm you are the legally authorized executor or administrator, using the probate court’s letters of appointment.
- Gather the decedent’s full name, SSN, date of death, and the estate’s mailing address.
- Apply for the EIN at the IRS EIN Assistant online, or by fax or phone if you cannot use the tool.
- Save the EIN confirmation notice and open the estate bank account with it.
- Track all income the estate earns after the date of death, and file Form 1041 by April 15, 2026 if gross income reaches $600 for 2025.
- File Form 56 to notify the IRS of your fiduciary relationship, and check your state’s probate court and revenue department for separate filings.
- Call a CPA or estate attorney if the estate is large, holds a business, owes estate tax, or involves disputes among heirs.
FAQs
How long does it take to get an estate EIN?
Minutes online. The IRS EIN Assistant issues the number immediately at the end of the session. Fax takes about four business days, and mail takes roughly four weeks.
How much does an estate EIN cost?
It is free. The IRS charges nothing for an EIN through any method. Any service that charges you a fee is a third party, not the IRS, and adds no official value.
Can I use the decedent’s Social Security number instead?
No. The decedent’s SSN cannot identify the estate, a separate legal entity. Using it triggers IRS mismatch notices and banks will refuse to open the estate account.
Who is the “responsible party” on Form SS-4 for an estate?
The fiduciary. For a decedent estate, the responsible party is the living executor, administrator, personal representative, or other fiduciary, and you enter their SSN or ITIN, per the SS-4 instructions.
Does every estate need an EIN?
No. An estate needs one if it earns income after death, holds assets in its own name, or must file Form 1041. If everything passes by beneficiary designation with no income, you may not need one.
When must an estate file Form 1041?
At $600 of gross income. For tax year 2025, an estate files Form 1041 if it has $600 or more of gross income, or if any beneficiary is a nonresident alien.
What is the deadline to file the estate’s Form 1041?
April 15, 2026 for a calendar-year 2025 estate. You can request a five-and-a-half-month extension by filing Form 7004 before the due date.
Can a foreign executor get an estate EIN?
Yes. A fiduciary with no U.S. SSN or ITIN cannot use the online tool but can apply by phone at 267-941-1099 or by fax, as the SS-4 instructions explain.
Do I need a separate EIN for a living trust?
Usually yes after death. A revocable trust generally needs its own EIN once the grantor dies, which is a separate application from the estate EIN. Check the Form 1041 instructions for grantor-trust rules.
What if I need to file a return before the EIN arrives?
Write “Applied For.” Enter “Applied For” and the date you applied in the EIN space, and never substitute the decedent’s SSN, per the SS-4 instructions.
Is the estate EIN the same as the estate tax?
No. The EIN supports Form 1041 income tax. The federal estate tax is a separate Form 706 matter that affects only estates above the $13.99 million 2025 exemption.
What happens if the responsible party changes?
File Form 8822-B. You must report a change in responsible party within 60 days using Form 8822-B, or IRS records become inaccurate.
Should I file Form 56 too?
Yes, generally. Form 56 notifies the IRS that you are acting as the estate’s fiduciary, which helps direct notices to you rather than the decedent.