Most founders encounter their first audit as a shock — a Series B lead investor writes into the term sheet that closing is contingent on audited financials, and suddenly the CFO is telling you it will take four months and cost $200K. Neither number needs to be that bad if you set it up right.
1. Series B or later financing. Almost every institutional round above $30M requires audited financials for the most recent fiscal year. 2. Debt facility. Most venture debt lenders and revenue-based lenders require audited or at least reviewed financials. 3. M&A. Any acquirer above a certain size will require audited financials or will do their own audit as part of diligence.
Before any of these, a monthly close done to GAAP standards by a good controller is enough. Do not pay for an audit you do not need — it is one of the least valuable line items on the P&L until it is required.
Big Four (Deloitte, PwC, EY, KPMG). $250K to $1M+ for the first year. Required if you are on an IPO track or if a strategic acquirer will insist. Overkill before Series C.
National mid-market firms (BDO, Grant Thornton, RSM). $100K to $250K. The sweet spot for most Series B to Series D companies.
Regional or startup-focused firms. $50K to $150K. Fine for early audits and pre-IPO. Some investors will push back at Series C+.
Use a firm your lead investor has seen before. Fighting the audit firm choice adds weeks to the diligence process.
90 days of prep on your side beats 90 days of audit fees on theirs. The checklist:
Reconciled bank, payroll, and credit card accounts for every month
Legal letter (from your counsel confirming no undisclosed litigation)
An organized data room cuts audit fees by 20 to 30 percent and cuts the timeline in half. This is one of the highest-return prep investments a finance team can make.
Named partner from your side. The CFO or controller owns the relationship. Not a rotating cast.
Weekly status calls. 30 minutes. What is open, what is blocked, what is on your side vs. theirs.
Immediate escalation of any technical accounting issue. Revenue rec, stock comp, business combinations. The moment the auditor raises a question, get on it. Delayed responses are the number one driver of audit overruns.
A written management representation letter at the end. The founder-CEO signs it. Read it carefully.
An unqualified opinion with no material weaknesses is the target. Anything less becomes a diligence footnote for the next three years. If a material weakness is identified, fix it before the next audit cycle and document the remediation. Investors are much more forgiving of a fixed weakness than a repeated one.
Audit is not a place for creativity. It is a place for discipline and preparation. Founders who treat it as a routine annual event — not a fire drill — end up with cheaper audits, faster fundraises, and better-slept CFOs.
