No, a nonprofit cannot register without an Employer Identification Number (EIN). This nine-digit tax ID is mandatory for completing state registration, applying for 501(c)(3) status, opening bank accounts, and filing tax returns. Nonprofits must obtain an EIN through the IRS by completing Form SS-4, available through online, mail, fax, or phone application methods. Operating without an EIN creates insurmountable legal and operational barriers that prevent legitimate nonprofit establishment. The following sections outline critical steps and requirements.
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ToggleThe Legal Requirement for EINs in Nonprofit Registration

Compliance with federal regulations forms the cornerstone of nonprofit establishment in the United States. The Employer Identification Number (EIN) represents an essential element in this regulatory framework, serving as the organization’s tax identification number with the IRS.
EIN Importance for Legal Operations
Nonprofits cannot complete key establishment tasks without an EIN, including:
- Opening a business bank account
- Filing required tax forms like Form 990
- Applying for tax-exempt 501(c)(3) status
- Securing business licenses and permits
Nonprofit Compliance Requirements
The IRS mandates EINs to track organizational activities and guarantee adherence to federal tax laws.
State and local governments also typically require this identifier for registration processes.
Without an EIN, a nonprofit organization faces significant barriers to legal operation and financial management.
Organizations can obtain an EIN for free of charge directly through the IRS website as part of the essential nonprofit formation process.
Regardless of whether your nonprofit has employees, an EIN is always required for all nonprofit organizations operating in the United States.
An EIN is also necessary for SAM registration, which is critical for nonprofits seeking to access federal funding opportunities and grants.
Step-by-Step Process for Obtaining Your Nonprofit’s EIN

Having established the necessity of an EIN for nonprofit operations, organizations must follow a specific procedure to secure this identifier from the IRS.
The EIN application begins with gathering essential documentation, including the nonprofit’s legal name, physical address, and formation date as registered with the state.
Proper preparation of your organization’s foundational details forms the critical first step in the EIN application process.
Nonprofits can apply through four primary methods: online (fastest option, providing immediate issuance), fax (4-day processing), mail (up to four weeks), or phone for international applicants.
When completing Form SS-4, organizations must accurately indicate their nonprofit classification and entity type to guarantee proper IRS recognition.
After receiving the EIN, organizations should securely store this number for use in tax-exempt status applications, banking relationships, and state registrations.
Avoiding common pitfalls like duplicate applications and incorrect responsible party information prevents unnecessary delays.
The entire application process is completely free through the IRS website, making it accessible for nonprofits of all sizes.
Remember that the online application system has a 15-minute activity limit during registration, so have all information ready before starting.
An active EIN is also required when registering with the SAM system, which is essential for nonprofits seeking eligibility for federal grants and contract opportunities.
Operating Without an EIN: Limitations and Consequences

Nearly every aspect of nonprofit operations becomes markedly restricted without an Employer Identification Number (EIN). Organizations face significant fundraising challenges, including inability to apply for grants, difficulties opening bank accounts for donation processing, and complications in providing tax receipts to supporters.
Donor trust erodes when nonprofits cannot furnish an EIN for verification purposes. Without this nine-digit identifier, organizations cannot file required tax returns, apply for 501(c)(3) status, or establish credibility with potential partners and vendors. Most critically, nonprofits cannot participate in matching gift programs that could substantially increase their donation revenue.
Additionally, nonprofits lacking an EIN encounter hurdles when:
- Hiring employees and providing benefits
- Entering contractual agreements with service providers
- Securing loans or credit
- Registering with state and local authorities
- Demonstrating legitimacy to stakeholders
The absence of an EIN creates both immediate operational obstacles and long-term strategic limitations. Organizations must obtain an EIN before submitting the Form CT-1 to properly register with the California Attorney General’s office as required by state law. Without an EIN, nonprofits also cannot complete SAM registration necessary to qualify for federal grants and funding opportunities.
Frequently Asked Questions
Can My Organization Use My Personal Social Security Number Instead?
Organizations cannot use personal SSNs for nonprofit registration. Doing so has negative implications for tax reporting and liability. Nonprofit registration alternatives include obtaining an EIN through Form SS-4 if online application isn’t possible.
How Long Does an EIN Remain Valid for a Nonprofit?
EIN validity is permanent for nonprofits. Once assigned, an Employer Identification Number remains valid throughout the organization’s entire existence, regardless of name changes or periods of inactivity, provided the nonprofit maintains proper federal filings.
Can International Nonprofit Founders Obtain an EIN?
International nonprofit founders can obtain an EIN through the application process by establishing a US business presence. They must comply with international nonprofit regulations and typically apply via phone, fax, or mail methods.
What Happens if Our Nonprofit’s Structure Changes After EIN Assignment?
If a nonprofit’s structure changes considerably after EIN assignment, such as converting from a trust to a corporation, a new EIN is required. Minor changes don’t necessitate new EINs but must be reported to the IRS.
Can Multiple Related Nonprofits Share a Single EIN?
Multiple related nonprofits generally cannot share a single EIN despite having shared governance. IRS EIN requirements mandate separate identifiers for each legally distinct entity, ensuring proper tax filings and financial accountability for individual organizations.