Key Takeaways
Do Nonprofits Need an Audit?
Not all nonprofits need an audit. Whether your organization requires one depends on federal law, state law, funder requirements, and your own governance decisions. This guide explains exactly when audits are required and how to manage the process efficiently.
When Audits Are Required
Federal Single Audit (Uniform Guidance)
Nonprofits that spend $750,000 or more in federal awards in a single fiscal year must undergo a Single Audit under 2 CFR Part 200 (Uniform Guidance). This is the most common federal audit trigger.
State Audit Requirements
Each state sets its own audit requirements for nonprofits soliciting contributions. Thresholds vary widely:
| State | Audit Required At |
|---|---|
| California | $2 million+ gross revenue (registered charities) |
| Illinois | $300,000+ (financial statement required; audit above $300K) |
| Massachusetts | $500,000+ (financial statement required; audit above $500K) |
| New York | $1 million+ (audit required above this threshold) |
| Pennsylvania | $750,000+ (audit required) |
| Michigan | $550,000+ (audit required) |
Always verify current thresholds with your state's charitable registration office — they change over time.
Grant and Contract Requirements
Many foundations and government contracts require audited financial statements as a condition of funding. Common triggers:
- Federal grants (often even below the $750K Single Audit threshold)
- State contracts for service delivery
- Some private foundation grants (especially larger grants)
- United Way funding (varies by local United Way)
- Major corporate partnerships
Internal Decisions to Get an Audit
Even when not required, organizations may choose to get an audit for:
Audit vs. Review vs. Compilation
There are three levels of financial statement attestation, from most to least rigorous:
| Service | What It Provides | Cost | When Appropriate |
|---|---|---|---|
| Audit | Positive assurance — auditor's opinion that statements are materially accurate | $15,000-$75,000+ | Required by law/funders; organizations over $1M |
| Review | Limited assurance — auditor is "not aware" of material issues | $5,000-$20,000 | Mid-sized organizations; some grant requirements |
| Compilation | No assurance — CPA prepares statements from your records | $2,000-$7,000 | Small organizations; internal use |
If no audit is required, a review or compilation may be sufficient and significantly less expensive.
How to Prepare for a Nonprofit Audit
6-12 Months Before
3 Months Before
1 Month Before
During the Audit
Common Audit Findings
Understanding common findings helps you avoid them:
How Much Do Nonprofit Audits Cost?
Audit costs vary based on organization size, complexity, and location:
| Organization Size | Typical Audit Cost |
|---|---|
| Under $500K revenue | $10,000-$20,000 |
| $500K-$2M revenue | $15,000-$35,000 |
| $2M-$10M revenue | $25,000-$60,000 |
| $10M-$50M revenue | $40,000-$100,000 |
| Over $50M revenue | $75,000-$250,000+ |
Single Audits (federal compliance) add 25-50% to the base audit cost.
Ways to Reduce Audit Costs
- Strong accounting and internal controls reduce auditor time
- Well-organized documentation (vs. shoeboxes of receipts)
- Timely responses to auditor requests
- Consistent staff (avoid staff turnover during audit season)
- Single-year engagements with competitive bids every 3-5 years
Frequently Asked Questions
Who can perform a nonprofit audit?
Only Certified Public Accountants (CPAs) licensed in your state can issue audited financial statements. The CPA firm must also be independent — not involved in preparing your accounting records or providing bookkeeping services.
How long does an audit take?
From start to final report: typically 4-8 weeks for small to mid-sized organizations. The on-site fieldwork portion is usually 1-3 weeks.
Do we need an audit if we have 501(c)(3) status?
Not automatically. 501(c)(3) status itself does not trigger an audit requirement. Audits are required only when triggered by federal funding thresholds, state charitable registration rules, grant/contract requirements, or internal governance decisions.
What's the difference between an audit and Form 990?
Form 990 is an informational tax return filed with the IRS. An audit is an independent examination of your financial statements by a CPA. Some states require audited financials as an attachment to state charitable filings, but the IRS does not require Form 990 to be audited.
Building Audit-Ready Financial Systems
The best way to manage audit costs and avoid findings is to maintain strong accounting practices year-round. Giddings Consulting Group helps nonprofits strengthen financial management, internal controls, and audit readiness.
Contact us to discuss your organization's financial management needs.

About the Author
Drew Giddings
Founder & Principal Consultant
Drew Giddings brings more than two decades of experience working with mission-driven organizations to strengthen their capacity for equity and community impact. His work focuses on helping nonprofits build sustainable strategies that center community voice and create lasting change.
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