For many nonprofit leaders, Form 990 season brings a familiar mix of urgency, uncertainty, and last-minute document searches.

 

But with the right preparation—and the right guidance—the annual filing process can be smooth, organized, and stress-free.

 

This guide walks through what Form 990 is, why it matters, and how your organization can prepare with confidence.

 

What Is Form 990?

 

Form 990 is the annual information return most tax-exempt organizations must file with the IRS.
It provides transparency into your nonprofit’s:

 

• Financial activity
• Governance structure
• Leadership and compensation
• Programs and impact

 

Beyond compliance, Form 990 serves as a public trust document—used by donors, grantmakers, and regulators to understand how your organization operates and stewards resources.

 

Why Form 990 Matters More Than You Think

 

Filing accurately and on time does more than satisfy IRS requirements. A well-prepared Form 990 can:

 

• Strengthen donor confidence
• Support grant applications
• Demonstrate responsible governance
• Protect your tax-exempt status

 

In short, Form 990 isn’t just paperwork—it’s part of your organization’s credibility.

 

Key Information Your Accountant Will Need

 

Preparing early makes the biggest difference.

Most nonprofits should begin gathering the following:

 

1. Major Donor Details

 

Names and addresses of individuals or entities who contributed $5,000 or more during the fiscal year.

 

2. Board Member Information

 

Names, titles, and service periods of all active board members during the filing year.

 

3. Financial Records

 

Accurate year-end statements, including:

 

• Revenue by source
• Expenses by functional area (ie Program, Administrative, and Fundraising)
• Assets and liabilities

 

4. Program Descriptions

 

Clear summaries of your organization’s major activities and measurable impact.

Having these items ready early helps prevent delays, reduces back-and-forth communication, and keeps your filing timeline on track.

 

Common Form 990 Mistakes Nonprofits Should Avoid

 

Even well-run organizations encounter filing challenges.

Some of the most frequent issues include:

 

• Missing donor disclosures
• Outdated board information
• Improperly allocated functional expenses
• Late filings or incomplete schedules
  
  

These mistakes can lead to penalties, reputational concerns, or increased IRS scrutiny—making careful preparation essential.

 

When Should You Start Preparing?

 

The best time to prepare for Form 990 is well before the deadline.

 

Ideally:

 

• Begin gathering documents shortly after fiscal year-end
• Review governance and board records early
• Work with your accountant several months before filing
  
  

Early preparation turns a stressful deadline into a manageable process.

 

How Attolero Supports Nonprofits Through Form 990 Season

 

At Attolero, we believe compliance should feel clear, calm, and fully supported—not confusing or overwhelming.

Our team helps nonprofits:

• Organize required documentation
• Ensure accurate financial reporting
• Navigate IRS requirements with confidence
• File on time and in good standing

 

Most importantly, we aim to reduce stress so nonprofit leaders can stay focused on their mission.

 

Prepare with Confidence This Form 990 Season

 

Form 990 is more than an annual obligation. It’s an opportunity to demonstrate transparency, stewardship, and impact.

 

With thoughtful preparation and trusted guidance, your organization can approach filing season with clarity and peace of mind.

 

Need support with your upcoming Form 990?
Attolero is here to help.