Auditor rotation is a governance best practice — but how do you know when it's time? Here are the signs that your nonprofit should consider a new audit firm.
Staying with the same audit firm for many years feels comfortable — they know your organization, the process is smooth, and switching sounds like a lot of work. But long-term auditor relationships carry real risks, and governance best practices increasingly call for periodic rotation. Here's how to know when it's time.
Independence is the foundation of a credible audit. When an auditor has worked with the same client for 10 or 15 years, two things tend to happen: the auditors become less skeptical (they've seen it all before and trust the numbers), and management becomes more comfortable pushing back on findings. Neither is good for your organization.
Many state nonprofit governance statutes, funder requirements, and best-practice frameworks — including those from the National Council of Nonprofits — recommend rotating auditors every 5–7 years. Some require it.
Nonprofit accounting has real complexity — restricted funds, grant compliance, functional expense allocation, in-kind contributions. If your auditor doesn't routinely work with nonprofits, errors and missed requirements become more likely. This is especially true if you receive federal funding and are subject to Uniform Guidance.
Some fee growth is expected — inflation, increased complexity, staff transitions. But if your fees have increased 30–50% over a few years without a corresponding increase in scope, it may be time to test the market. Competitive bidding often reveals that you've been paying a premium for familiarity.
Even if you don't rotate firms, rotating the engagement partner is a meaningful independence safeguard. If the same partner has led your audit for many years, ask the firm to assign a new lead — or take the opportunity to explore other firms.
If your auditors rarely ask probing questions, issue findings, or push back on accounting judgments — and your organization has genuinely grown in complexity — that's a warning sign. A good audit should be somewhat uncomfortable. Fresh eyes often find things that have been overlooked.
Long-tenured relationships can get complacent. If calls go unreturned, fieldwork is delayed, or you feel like a low-priority client, those are legitimate reasons to switch — regardless of audit quality.
If your budget has grown substantially, you've added federal programs, you've merged with another organization, or you've added new revenue streams, your audit needs may have outgrown your current firm. A firm that was right for a $500K organization may not be equipped for a $5M one.
Switching auditors is less disruptive than most organizations expect. Your new firm will request a copy of the prior year's working papers (your outgoing firm is obligated to provide them), and they'll complete a predecessor–successor auditor communication. The first year takes more time, but subsequent years are typically smoother than with your previous firm.
AuditMatch makes it easy. Post a free RFP and receive proposals from CPA firms that specialize in nonprofit audits. You set the timeline, review proposals at your pace, and choose the firm that best fits your organization — no cold calls required.
If your organization is in our nonprofit directory, you can also check your current auditor's tenure and see whether our rotation flag applies to you.
Post a free RFP on AuditMatch and receive proposals from qualified CPA firms.