Why It Matters

Nonprofit audits aren’t just about checking numbers; they evaluate how responsibly your organization manages funding and compliance. Weak controls, misclassified transactions, or poor documentation can lead to audit adjustments, penalties, increased audit costs, and damaged funder confidence. By addressing these common pitfalls proactively, nonprofits can protect their reputation, strengthen financial oversight, and ensure more resources stay focused on advancing their mission.

5 Common Nonprofit Audit Pitfalls

1. Mismanaging Restricted Revenue- Nonprofits are entrusted with funds that often come with specific conditions attached. Failing to properly track and honor those restrictions is one of the most common, and most serious audit findings. Funding restrictions most often apply to donations (especially major gifts and campaign contributions), grants (foundation, corporate, or government) and contracts with specific deliverables or program requirements.

Each of these funding sources may include clear instructions about how and when the money can be spent. Some funds are restricted to a particular program. Others may be time-restricted or tied to measurable outcomes.

Remedy: To prevent missteps, nonprofits should implement clear, organization-wide guidelines for handling incoming funds which outline what happens every time money is received and ensure accountability at every stage. Strong fund usage guidelines should address: 

• Where did the money come from?
• What specific program, activity, or timeframe is it restricted to?
• When can the funds be used?
• Are there deadlines?
• How will the funds be coded, monitored, and reported on?

2. Weak or Informal Internal Controls- A major red flag for auditors is when a nonprofit lacks proper internal controls. When an organization does not have clear policies governing how money is received, recorded, approved and reviewed, auditors are more likely to expand their testings and scrutinize transactions in greater detail. Often times internal control gaps are not intentional but stem from limited staff or informal processes, but without the proper safeguards, even well-meaning teams can increase the risk of errors, misstatements or even fraud.

Remedy: Nonprofit leaders can address this risk by intentionally designing and implementing a robust accounting framework supported by practical internal controls. Partnering with an experienced nonprofit accountant can help ensure systems are set up correctly from the beginning and scaled appropriately as the organization grows.

3. Misclassifying Revenue and Expenses- Unlike for-profit bookkeeping, nonprofits have to follow strict rules about how donations, grants, and expenses are recorded. Improperly recording revenue and expenses leads to compliance issues, inaccurate financial statements and audit adjustments.

Remedy: To avoid misclassification, nonprofits should establish clear procedures for evaluating and recording every source of revenue and expense. Best practices include:

• Creating formal guidelines for classifying donations, grants, and earned income
• Tracking donor restrictions separately to ensure funds are used and reported correctly
• Reviewing grant agreements in detail to determine the proper accounting treatment
• Using accounting software with fund-tracking capabilities

4. Weak Documentation and Incomplete Financial Records- Auditors cannot easily verify transactions if documentation is missing or numbers don’t match supporting reports. This can lead to extra audit testing, delays and added stress for staff (sometimes even higher audit costs).

Remedy: The good news? This is one of the most preventable audit mistakes. Start by putting a clear record-keeping system in place, one that outlines how financial documents are collected, stored, and reviewed. Many accounting and document-management platforms offer nonprofit discounts and allow you to:

• Digitally store receipts and invoices
• Attach supporting documents directly to transactions
• Automate bank and credit card reconciliations
• Generate real-time financial reports

5. Improper Worker Classification- Nonprofits often rely on a mix of volunteers, independent contractors, and employees to carry out their mission. But when those roles aren’t properly defined and classified, it can create serious legal and financial consequences. It’s not uncommon for nonprofit leaders to feel unsure about how to classify workers, especially in smaller organizations without a dedicated Human Resources department. Someone may be paid “like a contractor,” but function day-to-day as an employee. Or a long-term contractor may gradually take on responsibilities that legally shift their status. While often unintentional, misclassification can trigger back taxes, unpaid payroll taxes, penalties, interest and sometimes wage and hour claims.

Remedy: Leadership should take time to understand the legal distinctions between employees and independent contractors. The Internal Revenue Service provides guidance explaining the key factors used to determine classification, including behavioral control, financial control, and the nature of the working relationship.

It’s also wise to periodically review all contractor relationships especially long-standing ones to ensure they still meet the appropriate criteria.