IRS SS-4 Template

IRS SS-4 Template

The IRS SS-4 form is an application used to obtain an Employer Identification Number (EIN), which is essential for businesses and certain organizations. This form is crucial for tax administration and helps the IRS identify taxpayers. To begin the process of acquiring your EIN, fill out the form by clicking the button below.

Table of Contents

The IRS SS-4 form is an essential document for anyone looking to establish a business entity in the United States. This form is primarily used to apply for an Employer Identification Number (EIN), which is crucial for tax purposes and helps identify your business. Completing the SS-4 form correctly can streamline your interactions with the IRS and ensure compliance with federal regulations. The form requires basic information about your business, including its legal structure, the reason for applying, and details about the responsible party. Whether you are starting a sole proprietorship, partnership, corporation, or nonprofit organization, understanding the nuances of the SS-4 form can significantly impact your business operations. Additionally, knowing when and how to submit the form can save you time and potential complications down the road. Overall, the IRS SS-4 form is a foundational step in the journey of establishing and running a business in the U.S.

IRS SS-4 Sample

Form SS-4

Application for Employer Identification Number

OMB No. 1545-0003

(For use by employers, corporations, partnerships, trusts, estates, churches,

EIN

(Rev. December 2025)

government agencies, Indian tribal entities, certain individuals, and others.)

 

Department of the Treasury

See separate instructions for each line. Keep a copy for your records.

 

Internal Revenue Service

Go to www.irs.gov/FormSS4 for instructions and the latest information.

 

1Legal name of entity (or individual) for whom the EIN is being requested

clearly.

4a

Mailing address (room, apt., suite no. and street, or P.O. box)

5a

Street address (if different) (Don’t enter a P.O. box.)

 

 

2

Trade name of business (if different from name on line 1)

 

3

Executor, administrator, trustee, “care of” name

 

print

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4b City, state, and ZIP code (if foreign, see instructions)

 

 

 

5b City, state, and ZIP code (if foreign, see instructions)

 

or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

6

County and state where principal business is located

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7a Name of responsible party

 

 

 

 

 

 

7b SSN, ITIN, or EIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8a Is this application for a limited liability company (LLC)

 

 

 

 

 

 

8b

If 8a is “Yes,” enter the

number

of

 

 

 

(or a foreign equivalent)?

Yes

 

 

No

 

LLC members

 

 

8c

 

If 8a is “Yes,” was the LLC organized in the United States? .

. .

. . . . . . . . . . . .

. . .

Yes

No

9a Type of entity (check only one box). Caution: If 8a is “Yes,” see the instructions for the correct box to check.

 

 

 

 

 

 

 

Sole proprietor (SSN)

 

 

 

 

 

 

 

 

 

Estate (SSN of decedent)

 

 

 

 

 

 

 

 

Partnership

 

 

 

 

 

 

 

Plan administrator (TIN)

 

 

 

 

 

 

 

 

Corporation (enter form number to be filed)

 

 

 

 

 

 

 

 

Trust (TIN of grantor)

 

 

 

 

 

 

 

 

Personal service corporation

 

 

 

 

 

 

 

Military/National Guard

State/local government

 

 

 

 

Church or church-controlled organization

 

 

 

 

 

 

 

Farmers’ cooperative

Federal government

 

 

 

 

Other nonprofit organization (specify)

 

 

 

 

 

 

 

 

REMIC

Indian tribal governments/enterprises

 

 

 

Other (specify)

 

 

 

 

 

 

Group Exemption Number (GEN) if any

 

 

9b

 

If a corporation, name the state or foreign country (if

 

State

 

 

 

 

Foreign country

 

 

 

 

applicable) where incorporated

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10 Reason for applying (check only one box)

 

 

Banking purpose (specify purpose)

 

 

 

 

 

 

 

 

Started new business (specify type)

 

 

Changed type of organization (specify new type)

 

 

 

 

 

 

 

 

 

 

 

 

 

Purchased going business

 

 

 

 

 

 

 

Hired employees (Check the box and see line 13.)

 

 

Created a trust (specify type)

 

 

 

 

 

 

 

 

Compliance with IRS withholding regulations

 

 

Created a pension plan (specify type)

 

 

 

 

 

 

 

Other (specify)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11 Date business started or acquired (month, day, year). See instructions.

 

 

12 Closing month of accounting year

 

 

13Highest number of employees expected in the next 12 months (enter -0- if none). 14 If you expect your employment tax liability to be $1,000 or less in a

If no employees expected, skip line 14.

 

 

full calendar year and want to file Form 944 annually instead of Forms

 

 

 

 

 

941 quarterly, check here. (Your employment tax liability will generally

Agricultural

 

Household

 

Other

be $1,000 or less if you expect to pay $5,000 or less, $6,536 or less if

 

 

 

 

you're in a U.S. territory, in total wages.) If you don't check this box,

 

 

 

 

 

 

 

 

 

 

you must file Form 941 for every quarter

. . . . . .

15First date wages or annuities were paid (month, day, year). Note: If applicant is a withholding agent, enter date income will first be paid to

nonresident alien (month, day, year) . . . . . . . . . . . . . . . . .

16 Check one box that best describes the principal activity of your business.

Health care & social assistance

Wholesale—agent/broker

Construction

Rental & leasing

Transportation & warehousing

Accommodation & food service

Wholesale—other

Retail

Real estate

Manufacturing

Finance & insurance

Other (specify)

 

 

17Indicate principal line of merchandise sold, specific construction work done, products produced, or services provided.

18 Has the applicant entity shown on line 1 ever applied for and received an EIN?

Yes

No

If “Yes,” write previous EIN here

 

 

 

 

 

Complete this section only if you want to authorize the named individual to receive the entity’s EIN and answer questions about the completion of this form.

 

 

 

 

 

 

Third

Designee’s name

 

 

Designee’s telephone number (include area code)

Party

 

 

 

 

 

Designee

 

 

 

 

 

Address and ZIP code

 

 

Designee’s fax number (include area code)

 

 

 

Under penalties of

perjury, I declare that I have examined this application, and to the best of my knowledge and belief, it is true, correct, and complete.

Applicant’s telephone number (include area code)

 

Name and title (type or print clearly)

 

 

 

 

 

 

 

 

Applicant’s fax number (include area code)

 

Signature

Date

 

 

 

 

For Privacy Act and Paperwork Reduction Act Notice, see separate instructions.

Cat. No. 16055N

 

Form SS-4 (Rev. 12-2025) Created 10/17/25

 

Form SS-4 (Rev. 12-2025)

Page 2

See below to determine whether you need an EIN. However, for further information on applying for an EIN, including how to submit an EIN application, see the separate instructions at www.irs.gov/FormSS4.

Do I Need an EIN?

File Form SS-4 if the applicant entity doesn’t already have an EIN but is required to show an EIN on any return, statement, or other document.1 See also the separate instructions for each line on Form SS-4.

IF the applicant...

AND...

THEN...

 

 

 

started a new business

doesn’t currently have (nor expect to have)

complete lines 1, 2, 4a–8a, 8b–c (if applicable), 9a,

 

employees

9b (if applicable), 10–14, and 16–18.

 

 

 

hired (or will hire) employees,

doesn’t already have an EIN

complete lines 1, 2, 4a–6, 7a–b, 8a,

including household employees

 

8b–c (if applicable), 9a, 9b (if applicable), and 10–18.

 

 

 

opened a bank account

needs an EIN for banking purposes only

complete lines 1–5b, 7a–b, 8a, 8b–c

 

 

(if applicable), 9a, 9b (if applicable), 10, and 18.

 

 

 

changed type of organization

either the legal character of the organization or its

complete lines 1–18 (as applicable).

 

ownership changed (for example, you incorporate a

 

 

sole proprietorship or form a partnership)2

 

 

 

 

purchased a going business3

doesn’t already have an EIN

complete lines 1–18 (as applicable).

created a trust

the trust is other than a grantor trust or an IRA

complete lines 1–18 (as applicable).

 

trust4

 

created a pension plan as a

needs an EIN for reporting purposes

complete lines 1, 3, 4a–5b, 7a–b, 9a, 10, and 18.

plan administrator5

 

 

is a foreign person needing an

needs an EIN to complete a Form W-8 (other than

complete lines 1–5b, 7a–b (SSN or ITIN as applicable),

EIN to comply with IRS

Form W-8ECI), avoid withholding on portfolio assets,

8a, 8b–c (if applicable), 9a, 9b (if applicable), 10,

withholding regulations

or claim tax treaty benefits6

and 18.

 

 

 

is administering an estate

needs an EIN to report estate income on Form 1041

complete lines 1–7b, 9a, 10–12, 13–17 (if applicable),

 

 

and 18.

 

 

 

is a withholding agent for

is an agent, broker, fiduciary, manager, tenant, or

complete lines 1, 2, 3 (if applicable), 4a–5b, 7a–b, 8a,

taxes on nonwage income

spouse who is required to file Form 1042, Annual

8b–c (if applicable), 9a, 9b (if applicable), 10, and 18.

paid to an alien (that is,

Withholding Tax Return for U.S. Source Income of

 

individual, corporation, or

Foreign Persons

 

partnership, etc.)

 

 

 

 

 

is a state or local agency

serves as a tax reporting agent for public assistance

complete lines 1, 2, 4a–5b, 7a–b, 9a, 10, and 18.

 

recipients under Rev. Proc. 80-4, 1980-1 C.B. 5817

 

 

 

 

is a single-member LLC (or

needs an EIN to file Form 8832, Entity Classification

complete lines 1–18 (as applicable).

similar single-member entity)

Election, for filing employment tax returns and excise

 

 

tax returns, or for state reporting purposes8, or is a

 

 

foreign-owned U.S. disregarded entity and needs an

 

 

EIN to file Form 5472, Information Return of a 25%

 

 

Foreign-Owned U.S. Corporation or a Foreign

 

 

Corporation Engaged in a U.S. Trade or Business

 

 

 

 

is an S corporation

needs an EIN to file Form 2553, Election by a Small

complete lines 1–18 (as applicable).

 

Business Corporation9

 

1For example, a sole proprietorship or self-employed farmer who establishes a qualified retirement plan, or is required to file excise, employment, alcohol, tobacco, or firearms returns, must have an EIN. A partnership, corporation, REMIC (real estate mortgage investment conduit), nonprofit organization (church, club, etc.), or farmers’ cooperative must use an EIN for any tax-related purpose even if the entity doesn’t have employees.

2However, don’t apply for a new EIN if the existing entity only (a) changed its business name, (b) elected on Form 8832 to change the way it is taxed (or is covered by the default rules), or (c) terminated its partnership status because at least 50% of the total interests in partnership capital and profits were sold or exchanged within a 12- month period. The EIN of the terminated partnership should continue to be used. See Regulations section 301.6109-1(d)(2)(iii).

3Don’t use the EIN of the prior business unless you became the “owner” of a corporation by acquiring its stock.

4However, grantor trusts that don’t file using Optional Method 1 and IRA trusts that are required to file Form 990-T, Exempt Organization Business Income Tax Return, must have an EIN. For more information on grantor trusts, see the Instructions for Form 1041.

5A plan administrator is the person or group of persons specified as the administrator by the instrument under which the plan is operated.

6Entities applying to be a Qualified Intermediary (QI) need a QI-EIN even if they already have an EIN. See Rev. Proc. 2000-12.

7See also Household employer agent in the instructions. Note: State or local agencies may need an EIN for other reasons, for example, hired employees.

8See Disregarded entities in the instructions for details on completing Form SS-4 for an LLC.

9An existing corporation that is electing or revoking S corporation status should use its previously assigned EIN.

Document Attributes

Fact Name Description
Purpose The IRS SS-4 form is used to apply for an Employer Identification Number (EIN), which is necessary for businesses to report taxes and manage employee payroll.
Who Should File Any business entity, including sole proprietorships, partnerships, corporations, and non-profit organizations, must file the SS-4 if they need an EIN.
Filing Methods The form can be filed online, by mail, or by fax. The online application process is typically the fastest method.
State-Specific Forms Some states may require additional forms for business registration. For example, California requires the Statement of Information (Form SI-550) under California Corporations Code Section 1502.
Processing Time Once submitted, the IRS usually processes the SS-4 form within four weeks. However, online applications can receive an EIN immediately.

IRS SS-4: Usage Instruction

After completing the IRS SS-4 form, you will submit it to the IRS to obtain your Employer Identification Number (EIN). This number is essential for various business activities, including tax reporting and hiring employees. Follow the steps below to accurately fill out the form.

  1. Download the IRS SS-4 form from the IRS website or obtain a physical copy.
  2. Provide the legal name of the entity applying for the EIN in the designated field.
  3. Enter the trade name of your business, if applicable, in the appropriate box.
  4. Select the type of entity you are applying for (e.g., sole proprietorship, partnership, corporation) by checking the correct box.
  5. Fill in the responsible party's name and Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN).
  6. Provide the entity's address, including street, city, state, and ZIP code.
  7. Indicate the reason for applying for an EIN, such as starting a new business or hiring employees.
  8. Specify the date your business started or will start.
  9. List the number of employees you expect to hire in the next 12 months.
  10. Provide information about the type of business activities you will engage in.
  11. Review the completed form for accuracy and completeness.
  12. Sign and date the form before submitting it to the IRS.

Frequently Asked Questions

  1. What is the IRS SS-4 form?

    The IRS SS-4 form is an application used to apply for an Employer Identification Number (EIN). This number is essential for businesses, as it serves as a unique identifier for tax purposes. Organizations, sole proprietors, and partnerships often need an EIN to open a business bank account, file tax returns, or hire employees.

  2. Who needs to fill out the SS-4 form?

    Any business entity that requires an EIN must complete the SS-4 form. This includes:

    • Corporations
    • Partnerships
    • Sole proprietors with employees
    • Non-profit organizations
    • Trusts and estates
    • Any other entity needing a federal tax identification number
  3. How can I submit the SS-4 form?

    The SS-4 form can be submitted in several ways:

    • Online through the IRS website, which is the fastest method.
    • By mail, sending the completed form to the appropriate IRS address.
    • By fax, if you are applying from within the United States.

    Each method has its own processing times, with online applications typically processed immediately.

  4. What information is required on the SS-4 form?

    When filling out the SS-4 form, you will need to provide:

    • The legal name of the entity
    • The trade name, if different from the legal name
    • The entity's address
    • The type of entity (e.g., corporation, partnership)
    • The reason for applying for an EIN
    • The name and Social Security number of the responsible party

    Ensure that all information is accurate to avoid delays in processing.

  5. Is there a fee to apply for an EIN using the SS-4 form?

    No, there is no fee to apply for an EIN. The IRS provides this service free of charge. Be cautious of third-party services that may charge a fee for filing the SS-4 form on your behalf.

  6. How long does it take to receive my EIN after submitting the SS-4 form?

    Processing times can vary based on the submission method:

    • Online applications are usually processed immediately.
    • Fax applications can take up to four business days.
    • Mail applications may take several weeks, depending on the volume of requests.

    Once your application is processed, you will receive your EIN confirmation.

Common mistakes

Filling out the IRS SS-4 form, which is used to apply for an Employer Identification Number (EIN), can be a straightforward process. However, many people make common mistakes that can delay their application or lead to complications down the line. Understanding these pitfalls can help ensure a smoother experience.

One frequent error is providing incorrect or incomplete information. The form requires specific details about your business, such as its legal name and address. Omitting any information or making typographical errors can result in processing delays. Always double-check the details before submitting.

Another mistake is failing to select the appropriate entity type. The IRS recognizes various business structures, including sole proprietorships, partnerships, and corporations. Choosing the wrong type can lead to tax implications and additional paperwork. Take time to understand the distinctions and select the option that accurately reflects your business.

Some applicants overlook the necessity of a responsible party. The form requires the name and Social Security number (SSN) of an individual who controls the business. Neglecting to include this information can cause the application to be rejected. Ensure that the responsible party is clearly identified and that their information is accurate.

Many people also make the mistake of not providing a valid reason for applying for an EIN. The form asks for the purpose of obtaining an EIN, such as starting a new business or hiring employees. Providing a vague or incorrect reason can lead to questions from the IRS. Be clear and specific about your intentions.

In addition, applicants sometimes fail to sign and date the form. A missing signature can result in the IRS considering the application incomplete. Always ensure that the form is signed by the responsible party and dated appropriately before submission.

Another common oversight is not submitting the form in the correct manner. While the SS-4 can be submitted online, by mail, or by fax, each method has its own requirements. For instance, if submitting by mail, ensure that you send it to the correct address based on your location. Misaddressing your application can lead to delays.

Some individuals do not keep a copy of the completed form. Retaining a copy is essential for your records and can be useful if any issues arise later. Having documentation of your submission can help clarify any discrepancies in the future.

Lastly, many applicants underestimate the importance of following up. After submission, it is wise to check the status of your application if you do not receive confirmation within a reasonable timeframe. Proactive follow-up can help you address any potential issues before they escalate.

Documents used along the form

The IRS SS-4 form is essential for businesses seeking to obtain an Employer Identification Number (EIN). However, several other forms and documents may accompany it during the application process or for related purposes. Below is a list of these forms, each playing a unique role in business operations and compliance.

  • Form 1040: This is the standard individual income tax return form used by U.S. taxpayers to report their annual income. It helps in determining tax liability and is often necessary for sole proprietors.
  • Form 1065: This form is used by partnerships to report income, deductions, gains, and losses from the operation of a partnership. It provides a detailed overview of the partnership's financial activities.
  • Form 1120: Corporations use this form to report their income, gains, losses, deductions, and credits. It is crucial for C corporations filing their federal income tax returns.
  • Form W-9: This form is used to request the correct name and Taxpayer Identification Number (TIN) of a person or business. It is often needed for tax reporting purposes.
  • Form W-2: Employers must use this form to report wages paid to employees and the taxes withheld. It is essential for employees when filing their individual tax returns.
  • Form 941: This is the Employer's Quarterly Federal Tax Return. Employers use it to report income taxes, Social Security tax, and Medicare tax withheld from employee paychecks.
  • Form 1099: Various versions of this form are used to report income received by independent contractors and other non-employees. It is crucial for tax reporting and compliance.
  • Form 8832: This form allows eligible entities to choose how they want to be classified for federal tax purposes. It can be particularly useful for LLCs deciding between being taxed as a corporation or a partnership.
  • Form 2553: This form is used by small businesses to elect S corporation status. It allows the business to avoid double taxation on corporate income.

Understanding these forms and their purposes can streamline the process of setting up and managing a business. Each document has its significance, ensuring compliance with tax regulations and facilitating proper reporting. Keeping these forms organized and accessible is crucial for smooth business operations.

Similar forms

The IRS SS-4 form is an important document for businesses, particularly when applying for an Employer Identification Number (EIN). It shares similarities with several other forms. Here’s a list of six documents that are comparable to the SS-4 form:

  • Form W-9: This form is used by individuals and businesses to provide their taxpayer identification number (TIN) to others. Like the SS-4, it helps establish tax identification for reporting purposes.
  • Form 1040: The individual income tax return form requires personal information and tax identification. Both forms are essential for tax compliance and reporting.
  • Form 1065: This is the partnership tax return. It requires information about the partnership and its members, similar to how the SS-4 collects details about a business entity.
  • Form 1120: Corporations use this form to report their income and expenses. Like the SS-4, it is crucial for establishing a business’s tax obligations.
  • Form 941: This is the employer's quarterly federal tax return. It requires information about employee wages and taxes withheld, similar to how the SS-4 establishes an employer's identity.
  • Form 990: Nonprofits use this form to report their financial information to the IRS. Both the SS-4 and Form 990 help the IRS understand the structure and operations of different entities.

Each of these forms plays a significant role in the tax process, ensuring that the IRS has the necessary information to manage tax compliance effectively.

Dos and Don'ts

When filling out the IRS SS-4 form, it's important to get it right to avoid delays in obtaining your Employer Identification Number (EIN). Here’s a list of things you should and shouldn’t do:

  • Do double-check your information for accuracy before submitting the form.
  • Do use the correct legal name of your business as registered.
  • Do provide a valid reason for needing an EIN, such as starting a new business or hiring employees.
  • Do ensure that you are filling out the form for the correct entity type, whether it's a sole proprietorship, partnership, corporation, etc.
  • Don't leave any required fields blank; this can lead to processing delays.
  • Don't use a personal Social Security Number (SSN) in place of the business’s EIN on the form.
  • Don't forget to sign and date the form before submitting it.
  • Don't submit the form via email; it must be sent by mail or fax, depending on your location.

Following these guidelines will help ensure a smooth application process for your EIN.

Misconceptions

The IRS SS-4 form is essential for obtaining an Employer Identification Number (EIN). However, several misconceptions surround its purpose and requirements. Here are five common misunderstandings:

  1. Only businesses need to file the SS-4 form.

    Many believe that only corporations or partnerships require an EIN. In reality, individuals, estates, and trusts may also need to file this form to obtain an EIN for tax purposes.

  2. The SS-4 form can only be submitted by mail.

    Some think that mailing the SS-4 is the only option. However, it can also be submitted online, by fax, or by phone, depending on the applicant's circumstances.

  3. Filing the SS-4 guarantees an EIN will be issued.

    It is a common belief that submitting the SS-4 automatically results in an EIN. In fact, the IRS may deny the application if the information provided is incomplete or inaccurate.

  4. There is a fee to file the SS-4 form.

    Many assume that there is a cost associated with filing the SS-4. This is incorrect; the form is free to file, and there are no associated fees for obtaining an EIN.

  5. Once obtained, the EIN never changes.

    Some individuals believe that an EIN is permanent and unchanging. However, certain situations, such as changes in business structure or ownership, may require a new EIN to be issued.

Understanding these misconceptions can help ensure proper compliance and streamline the process of obtaining an EIN.

Key takeaways

The IRS SS-4 form is essential for businesses applying for an Employer Identification Number (EIN). Here are key takeaways to consider when filling out and using this form:

  • Purpose of the Form: The SS-4 form is used to apply for an EIN, which is necessary for tax administration and reporting.
  • Eligibility: Any business entity, including sole proprietorships, partnerships, and corporations, can apply for an EIN using this form.
  • Information Required: You will need to provide details such as the legal name of the entity, address, and the type of entity.
  • Filing Options: You can submit the SS-4 form online, by mail, or by fax. Online submissions are processed immediately.
  • Signature Requirement: The form must be signed by a responsible party, which can be an owner or authorized representative.
  • Processing Time: If filed online, you may receive your EIN immediately. Mail or fax submissions can take longer.
  • Use of EIN: Once you receive your EIN, use it for tax filings, opening bank accounts, and applying for business licenses.
  • Keep Records: Store a copy of the completed SS-4 form and any correspondence with the IRS for your records.