Instructions for Form SS-4 (Rev. December 2025); Form 8822-B (Rev. December 2019); IRS Responsible parties and nominees page (reviewed Aug. 22, 2026).
Who the responsible party is
The IRS's plain-language definition: “A responsible party is someone who owns, controls or exercises effective control over a business, nonprofit or other legal entity and directly or indirectly manages its funds and assets” (Responsible parties and nominees, reviewed August 22, 2026). The Form SS-4 instructions give the formal version: the responsible party “is the person who ultimately owns or controls the entity or who exercises ultimate effective control over the entity,” and should have enough control over, or entitlement to, the entity's funds or assets that, as a practical matter, the person can control, manage or direct the entity and the disposition of its funds and assets (Instructions for Form SS-4, Rev. December 2025, lines 7a to 7b).
Three rules follow from that definition:
- It is a person. “Your responsible party must be a person, not an entity. The only exception is for government entities.” The IRS's processing manual adds that, beginning May 13, 2019, a responsible party listed on Form 8822-B can no longer be an individual or entity with an EIN, and that business taxpayers must list an individual with an SSN or ITIN (IRM 3.13.2.4.8.2, Form 8822-B, Change of Responsible Party).
- It needs a TIN, or an explicit entry. Lines 7a and 7b take the person's name and SSN or ITIN. If the responsible party has neither and cannot get one, the instructions say to enter foreign or N/A on line 7b; the line cannot be left blank.
- Funding alone is not control. The IRS page says you are not a responsible party “If you can fund an entity or are entitled to its property but aren’t authorized to control, manage, or direct it”, giving a minor child beneficiary as the example. Where there is more than one candidate, the page says to list the person you want the IRS to recognize.
The responsible party is not the same as the person who signs a particular return or the person on a power of attorney. It is the ownership and control data on the entity record. The IRS manual puts the duty directly: owners of EINs must notify the IRS when any of the ownership data on the EIN changes (IRM 3.13.2.10.20).
Responsible party by entity type
The IRS page and the SS-4 instructions set the usual answer for each entity type:
| Entity | Usual responsible party | Source note |
|---|---|---|
| Corporation | Principal officer | For corporations with publicly traded shares or SEC registration, the instructions name the principal officer |
| Partnership | General partner | If the general partner is itself a corporation, the responsible party is that corporation's principal officer |
| Tax-exempt organization | Principal officer | Generally the principal officer as defined in the Form 990 instructions |
| Trust | Grantor, owner or trustor | Instructions for Form SS-4 |
| Decedent's estate | Executor, administrator, personal representative or other fiduciary | Instructions for Form SS-4 |
| Government entity | Agency or representative who can legally bind the entity | The only case where an EIN may be entered for the responsible party |
Two entity types have their own rules in the processing manual. For a single-member LLC, a Form 8822-B changing the responsible party must be signed by the single member shown on the IRS's records; a form signed only by the new responsible party is rejected for a corrected signature, and articles of organization showing the new owner are accepted to validate the change. For a sole proprietorship there is no change at all: “The Responsible Party must not be changed on a Sole Proprietor account.” A new owner of a sole proprietorship needs a new EIN, because a sole proprietor's EIN cannot be transferred from one person to another (IRM 3.13.2.4.8.2). When ownership changes produce a new entity, see when a business needs a new EIN.
The 60-day rule and Form 8822-B
The requirement sits in the regulations and the forms. Treas. Reg. 301.6109-1(d)(2)(ii)(A) says persons issued EINs “must provide to the Internal Revenue Service any updated application information in the manner and frequency required by forms, instructions, or other appropriate guidance,” and applies to everyone holding an EIN on or after January 1, 2014. The forms set the manner and the timing. The SS-4 instructions: “Use Form 8822-B to report changes to your responsible party, address or location. Changes in responsible parties must be reported to the IRS within 60 days.” Form 8822-B repeats it and cites the regulation: any entity with an EIN must report a change in its responsible party on lines 8 and 9 within 60 days of the change.
The obligation does not depend on whether the entity is active: the form says entities that change their address or the identity of their responsible party must file it whether or not they are engaged in a trade or business.
Common triggers for a business that pays others:
- A new CEO or president at a corporation, where the departing officer was the responsible party.
- A change of general partner, or of the managing member of a multi-member LLC.
- A sale of a single-member LLC's membership interest, where the LLC keeps its EIN.
- The original applicant was a formation service or other nominee and the real owner was never recorded (see Nominees).
The Instructions for Form 941 (Rev. March 2026) give the same instruction from the payroll side: notify the IRS immediately if you change your business name, business address or responsible party, and complete and mail Form 8822-B for an address or responsible-party change, separately from the return. A name change is not made on Form 8822-B; the 941 instructions say to write to the IRS office where you file your returns (see the business name change checklist).
Filing Form 8822-B
- What to complete. Check the boxes the change affects (business returns, employee plan returns, business location), give the business name and EIN on lines 4a and 4b, and enter the new responsible party's name on line 8 and SSN or ITIN on line 9. Address changes go on lines 5 to 7.
- Who signs. An officer, owner, general partner or LLC member manager, plan administrator, fiduciary or authorized representative signs; the form defines an officer as the president, vice president, treasurer, chief accounting officer and so on. A representative signing for the taxpayer must attach a copy of the power of attorney (Form 2848 can be used). The form adds that the IRS will not complete an address or responsible-party change from an unauthorized third party.
- Where. By mail to the Kansas City or Ogden address on the form, chosen by the state of the old business address. Since 2023 the IRS also accepts a PDF Form 8822-B attached to an electronically filed return through MeF to change the responsible party (IRM 3.13.2.4.8.2).
- How long. The form says processing generally takes 4 to 6 weeks. The IRS page adds that if no confirmation letter arrives within 60 days, you mail a copy of the Form 8822-B with Second Request written on it.
Form 8822-B does not change a business name, and it cannot move an EIN from one owner to another. A sole proprietorship with a new owner, an incorporation or a new partnership needs a new EIN, not a new responsible party.
Nominees
A nominee is “someone you give limited authority to act for your entity during its formation. The nominee has little or no control over the entity's assets” (Responsible parties and nominees). Formation services and registered agents sometimes act in this role. The IRS's position is that they cannot apply: “Nominees can’t apply for an EIN and shouldn’t be listed on Form SS-4,” and if you used a nominee for the state formation, you must identify the responsible party before applying for the EIN.
The IRS manual explains why. A nominee acts temporarily during formation in an effort to conceal the true responsible party, and “The use of nominees in the EIN application process prevents us from gathering appropriate information on entity ownership and has been found to facilitate tax non-compliance by entities and their owners” (IRM 21.7.13.7.3.12.3). The processing manual records that in 2010 the IRS posted an announcement asking entities that received EINs with a nominee's name or TIN to send a letter naming the current principal officer, general partner, grantor, owner or trustor (IRM 3.13.2.10.20).
The fix today is Form 8822-B. The IRS page: if you listed a nominee, “You must correct the information and identify your responsible party. Listing a nominee could disclose your information to an unauthorized person.” The disclosure risk is the practical point: the IRS uses the entity record to decide who it may talk to about the account.
When the record is wrong
The IRS sources say less about consequences than about procedure, and this page reports only what they say.
- No penalty for the form itself, but notices can go astray. Form 8822-B: “You will not be subject to penalties for failure to file this form. However, if you fail to provide the IRS with your current mailing address or the identity of your responsible party, you may not receive a notice of deficiency or a notice of demand for tax. Despite the failure to receive such notices, penalties and interest will continue to accrue on any tax deficiencies.”
- The wrong person may be able to reach the account. The IRS page warns that a nominee on the record could see the entity's information, and the IRS authenticates callers against the entity record before it will confirm an EIN (below).
- Identity-theft filters look at the entity. The IRS's Return Integrity and Compliance Services sends Letter 5263C and Letter 6042C, both titled Entity Verification for Businesses, and Letter 6217C, Entity Verification Response Letter (IRM 25.25.1). See Letter 5263C, Letter 6042C and Letter 6217C, and if returns you did not file appear under your EIN, 1099s or W-2s filed under your EIN.
- An EIN you did not request. The IRS manual says most people who receive a CP 575 for an EIN they did not apply for find that a third party applied on their behalf for a legitimate purpose; the CP 575 goes to the address on the SS-4, and the third party does not receive it (IRM 21.7.13.4.2.7). See CP 575.
Letter 147C and EIN verification
Letter 147C, EIN Previously Assigned, is the IRS's confirmation of an existing EIN. The IRS lists three ways to confirm an EIN: an entity transcript, a digital CP575 that eligible Business Tax Account users can download and use in place of the original CP575 notice and Letter 147C, or a call to the Business and Specialty Tax Line to request the letter (Employer identification number, reviewed July 17, 2026). Account access through BTA is covered in the designated official guide.
Before giving out an EIN by phone, IRS staff are told to “establish the caller’s relationship with the entity to determine if they are authorized to receive the EIN” (IRM 21.7.1.4.7.1, effective 10-01-2026). A caller who is the taxpayer is asked for their position with the entity; a third party needs a Form 2848 or Form 8821 (for Form 8821, box 4 checked and notated SS-4, EIN Application, or 147C letter); an unauthorized third party is told to conference the taxpayer in or have the taxpayer call. When a Form SS-4 is received for an entity that already has an EIN, the IRS mails the 147C to the address of record; if the SS-4 shows a different address and there is no clear notice of an address change, the letter sent to the SS-4 address does not show the EIN, and a previously assigned EIN is never faxed back to a third-party designee (IRM 21.7.13.4.2.4). So the responsible party and address on file decide who can get the letter.
The letter on this site's Letter 147C page explains what it shows and how to request it. One rule matters to payers: if the 147C is being requested to answer a second B notice for backup withholding, the IRS manual says to advise the caller “their request for a Letter 147C must be in writing” (IRM 21.7.1.4.7.1).
For payers verifying vendors
A vendor's EIN record is the vendor's responsibility, but it shows up in your files. What the sources support:
- Match on the legal name and EIN. The Form SS-4 instructions tell applicants to use the line 1 legal name (or the trade name, if chosen) on all tax returns. IRS matching uses that record, so collect the legal name on the Form W-9 and check it with TIN Matching before the first payment. What a TIN is and which kind a vendor should give: what is a TIN.
- A 147C from the vendor is strong evidence. It comes from the IRS to the vendor's address of record and shows the name the IRS holds. When a vendor's W-9 name does not match, a 147C is the usual way to find the name the IRS expects.
- A changed responsible party does not change the EIN. A new CEO or managing member at a vendor is not a reason to collect a new EIN, though it may be a reason to collect a new W-9 if anything on it changed. A change that creates a new entity is different (vendor name changes, mergers and new EINs).
- Looking up a vendor's EIN. Where a vendor will not give one, see finding a company's EIN; a W-9 refusal also triggers backup withholding rules. Screening the owners and the entity against sanctions lists is a separate check (OFAC sanctions screening for vendor payments).
Questions people ask
Can the responsible party be our parent company?
No, unless you are a government entity. The responsible party must be an individual with an SSN or ITIN. The IRS manual says that since May 13, 2019, a Form 8822-B listing an individual or entity with an EIN as the new responsible party is returned.
Is there a penalty for missing the 60-day deadline?
Form 8822-B says you will not be subject to penalties for failure to file the form. The risk it names is missing notices of deficiency or demand while penalties and interest keep accruing.
Our formation service applied for the EIN. What now?
If the service was listed as the responsible party, file Form 8822-B naming the real responsible party. The IRS says nominees cannot apply for an EIN and that listing one could disclose your information to an unauthorized person.
Can we change the responsible party on a sole proprietor's EIN after we buy the business?
No. The IRS manual says the responsible party must not be changed on a sole proprietor account; the new owner needs its own EIN.
Does a new responsible party mean a new EIN?
No. The IRS EIN page says you don't need a new EIN to change your business name, address or responsible party. A new EIN is needed when ownership or structure changes create a new entity.
How long does the IRS take to process Form 8822-B?
Generally 4 to 6 weeks. If no confirmation letter arrives within 60 days, mail a copy marked Second Request.