Nonprofit Compliance Checklist: Keep Your 501(c)(3) in Good Standing

Introduction: Why Compliance Matters for Nonprofits

Maintaining compliance is essential for all 501(c)(3) organizations. Beyond fulfilling legal obligations, staying compliant preserves your tax-exempt status, builds donor confidence, and protects your organization from financial penalties or reputational damage.

Nonprofit compliance involves adhering to a complex set of federal and state regulations, in addition to following internal governance policies. A proactive approach helps ensure your organization remains in good standing and focused on its mission.

This guide offers a practical, annual nonprofit compliance checklist to help your organization meet critical requirements and avoid common pitfalls.

Annual Compliance Checklist for Nonprofits

Federal Compliance Obligations

• File the appropriate IRS Form 990
  • Form 990-N: For organizations with gross receipts ≤ $50,000
  • Form 990-EZ: For gross receipts ≤ $200,000 and assets ≤ $500,000
  • Form 990: For larger organizations
• File Form 990-T if the organization earns unrelated business income (UBI)
• Submit Forms W-2 and 1099 to employees and independent contractors by January 31
• File payroll tax returns, including Forms 941 and 940, if applicable
• Acknowledge donor contributions in accordance with IRS guidelines
• Maintain accurate and secure donor records in line with privacy best practices
• Track grant expenditures and restricted funds appropriately
• Ensure board governance practices are consistent with IRS expectations

State-Level Compliance

• Register or renew with the state charity regulator, if applicable
• File annual state corporate reports (e.g., Statement of Information or equivalent)
• Renew charitable solicitation licenses or registrations
• Ensure state payroll and employment tax filings are current

Internal Governance & Documentation

• Maintain complete and accurate board meeting minutes
• Regularly review and update bylaws and policies, including conflict of interest policies
• Ensure board composition complies with IRS public charity requirements (e.g., majority independent board)
• Comply with applicable federal labor laws, such as the Fair Labor Standards Act (FLSA) and the Americans with Disabilities Act (ADA)

Understanding the 33 1/3 Rule for Nonprofits

To retain public charity status under IRS regulations, a 501(c)(3) organization must meet the public support test, often referred to as the 33 1/3 rule.

This test requires that at least one-third (33 1/3%) of total financial support comes from public sources, such as:

• Individual donors
• Government grants
• Contributions from other public charities

Failing to meet this threshold for two consecutive years may result in reclassification as a private foundation, which brings more stringent compliance requirements and excise taxes.

What Is Nonprofit Compliance?

Nonprofit compliance refers to the legal, financial, and operational practices that ensure a 501(c)(3) organization adheres to applicable regulations and maintains eligibility for tax-exempt status.

Key areas of nonprofit compliance include:

• Federal compliance: IRS filings, payroll taxes, contribution acknowledgment
• State compliance: Annual registration and solicitation filings
• Internal compliance: Adherence to bylaws, board governance standards, and conflict of interest policies
• Employment and labor compliance: Meeting the standards of FLSA, ADA, and relevant employment laws

Maintaining robust compliance systems not only avoids penalties but strengthens stakeholder trust.

IRS Reporting Requirements for 501(c)(3) Organizations

Each year, 501(c)(3) organizations must meet several IRS reporting obligations, including:

• Form 990 Series: Annual tax return based on size and revenue
• Form 990-T: Required if the organization earns unrelated business income
• Form W-2 and 1099: For employees and contractors
• Form 941 and 940: Quarterly and annual payroll tax reporting, if applicable
• Grant reporting: Maintain proper documentation and accounting for all grant expenditures

Recordkeeping is a critical component of IRS compliance. Accurate, timely, and transparent records can safeguard your organization during an audit or donor inquiry.

Penalties for Non-Compliance

The consequences of falling out of compliance can be severe. Key risks include:

• Revocation of tax-exempt status: The IRS will automatically revoke 501(c)(3) status after three consecutive years of failing to file Form 990
• Financial penalties: Late filings may result in fines, interest, or other sanctions
• Donor skepticism: Publicly visible compliance failures can reduce donor confidence and restrict future funding opportunities
• State-level consequences: Noncompliance with state charitable solicitation rules may prohibit fundraising activities

Let Dimov Tax Help You Stay Compliant

Navigating nonprofit compliance requirements can be complex, especially for small to mid-sized organizations with limited administrative capacity. At Dimov Tax, we provide comprehensive support to help your organization meet all its federal and state obligations.

Our services include:

• Annual IRS Form 990 preparation and filing
• State registration and solicitation license support
• Nonprofit payroll and contractor tax compliance
• Board governance consulting and policy review
• IRS audit preparation and representation

Whether you need help preparing Form 990 or navigating the 33 1/3 rule, Dimov Tax is here to ensure your nonprofit stays compliant, transparent, and mission-focused.

Ready to simplify your compliance process? Contact Dimov Tax today to schedule a consultation and ensure your nonprofit remains in good standing year after year.

Frequently Asked Questions