Top 5 Mistakes Nonprofits Make with IRS Filings and How to Avoid Them

Aug 13, 2026By Michelle Nunez

MN

Understanding IRS Filings for Nonprofits

Nonprofits play a critical role in society, offering services and support to various communities. However, maintaining tax-exempt status requires careful attention to IRS filings. Making mistakes in this area can lead to penalties or even loss of tax-exempt status. In this post, we’ll explore the top 5 mistakes nonprofits make with IRS filings and how to avoid them.

nonprofit paperwork

1. Missing Filing Deadlines

One of the most common mistakes is missing filing deadlines. Nonprofits must file Form 990 annually, with deadlines typically falling on the 15th day of the 5th month after the end of the fiscal year. Missing these deadlines can result in late fees or penalties.

To avoid this, set calendar reminders well in advance of the deadline. Consider using accounting software that provides alerts for upcoming filings. Staying organized is key to meeting these critical dates.

2. Incorrect Form Usage

Choosing the wrong form is another frequent error. The IRS offers different versions of Form 990 based on the organization's size and revenue: Form 990, 990-EZ, and 990-N. Selecting the incorrect form can lead to processing delays or rejections.

Review the IRS guidelines to determine which form your organization needs to file. If in doubt, consult with a tax professional who specializes in nonprofit filings.

tax forms

3. Incomplete or Inaccurate Information

Providing incomplete or inaccurate information on IRS filings can cause significant issues. Missing information, such as board member details or financial data, can lead to compliance problems.

Double-check all entries for accuracy before submission. Having a second person review the forms can help catch errors you might have missed. Accuracy is essential to maintaining good standing with the IRS.

4. Ignoring State Filing Requirements

Beyond federal filings, nonprofits must also comply with state-specific requirements. Ignoring these can result in state penalties or loss of state tax-exempt status.

Research the specific filing requirements for your state and ensure that all necessary forms are submitted on time. Consider consulting with a local expert to navigate these additional regulations.

state compliance

5. Failure to Report Changes

Nonprofits often overlook reporting significant changes, such as modifications in organizational structure or mission. These changes must be reported to the IRS to maintain transparency and compliance.

Ensure that any major changes are promptly updated in your IRS filings. Keeping detailed records of all organizational changes will streamline this process and ensure compliance.

Conclusion

Avoiding these common IRS filing mistakes is crucial for nonprofits to maintain their tax-exempt status and continue their valuable work. By staying organized, consulting with professionals, and ensuring accurate and timely filings, nonprofits can focus on their mission without the worry of compliance issues.