Nonprofit audit fee calculator.
Estimate your nonprofit audit cost in seconds, including Single Audit and Yellow Book (GAGAS) requirements. No contact info required.
Form 990, Line 12.
Form 990, Line 18.
Generally required with $1,000,000 or more in federal awards expended in a fiscal year. Unsure? Select No.
Audit completed within the next 6 weeks.
Get a formal quote.
Confirm your estimate with a scoped proposal. Attach your prior Form 990, audit report, or year-to-date financials if you have them.
Privacy and Use of Information: By using this calculator, you acknowledge that the information you provide will be collected and may be used by FirmKey to contact you regarding audit services. We do not share your information with third parties except our network of audit partners who may contact you to discuss your needs.
No Professional Relationship: Use of this calculator does not create a professional services relationship between you and FirmKey or any audit firm in our network. Any engagement would require a separate written agreement.
Accuracy and Limitations: This estimate is based on general industry benchmarks and the limited information provided. Actual audit fees may vary significantly based on factors including but not limited to: organizational complexity, internal controls, prior audit history, geographic location, specialized compliance requirements, and timing constraints. This tool should not be relied upon as the sole basis for budgeting or financial planning decisions.
Typical nonprofit audit fees.
Base ranges by revenue, across employee counts. First-time audits and rush timelines can increase fees.
| Annual revenue | Standard audit | With Single Audit / GAGAS |
|---|---|---|
| $0 to $1M | $4,800 to $6,500 | $5,500 to $7,500 |
| $1M to $3M | $7,000 to $12,900 | $8,100 to $14,800 |
| $3M to $6M | $8,100 to $19,400 | $9,300 to $22,300 |
| $6M to $10M | $10,800 to $24,200 | $12,400 to $27,800 |
| $10M to $20M | $12,900 to $29,600 | $14,800 to $34,000 |
| $20M to $50M | $16,100 to $37,700 | $18,500 to $43,400 |
| $50M to $100M | $21,500 to $53,800 | $24,700 to $61,900 |
Ranges assume clean books and a standard engagement. Want the full breakdown? Read how much a nonprofit audit costs.
Common questions.
How much does a nonprofit audit cost?
Smaller nonprofits typically pay $4,800 to $15,000. Mid-sized and larger organizations often fall between $15,000 and $50,000 or more, depending on scope and compliance requirements.
What drives nonprofit audit fees?
Revenue and expenses (transaction volume), employee count (payroll and internal controls), number of programs and funding sources, reporting complexity such as restricted funds, compliance requirements like a Single Audit, and how clean the books are before fieldwork begins.
What is a Single Audit and how does it affect cost?
A Single Audit adds compliance testing for major federal programs on top of the financial statement audit. It is generally required when an organization expends $1,000,000 or more in federal awards in a fiscal year. Because of the added testing, it costs more than a standard financial statement audit.
What is a Yellow Book (GAGAS) audit?
An audit performed under Government Auditing Standards, often required with government funding. It adds documentation and testing, which increases scope and cost.
Are first-time audits more expensive?
Usually. First audits need more setup, documentation, and process walkthroughs than repeat-year audits.
How can a nonprofit reduce audit costs?
Close the books on time, finish reconciliations before fieldwork, keep support for major accounts organized, and maintain clean grant and restricted revenue schedules. If your books need work first, FirmKey can help get you audit-ready.
Can FirmKey provide a formal audit proposal?
Yes. Request a formal quote and we'll scope the engagement with you.