How to Prepare for Your First Financial Audit: A Step-by-Step Checklist

The first audit is a project, not an event

Most companies reach their first financial statement audit the same way — a lender, an investor, a board, or an acquirer asks for audited financials, and suddenly a deadline appears. The finance team, often one or two people, is expected to produce a year of clean, evidenced records while also closing the current month.

It goes better when you treat the audit as a project that starts months before fieldwork, not a scramble that starts when the auditors show up. Here is the checklist we’d give any first-timer.

1. Understand what the auditor is actually testing

An audit is an independent opinion on whether your financial statements are fairly presented, in all material respects, in accordance with the applicable framework — for most private US companies, US GAAP as codified in the FASB Accounting Standards Codification. The auditor gathers evidence against a handful of assertions: that recorded transactions occurred, that balances are complete and accurate, that you own your assets (rights and obligations), that items are valued correctly, and that everything is properly presented and disclosed. Everything they ask you for maps back to one of those assertions.

2. Get the trial balance and close process solid

Auditors start from your year-end trial balance. If your monthly close is slow, informal, or reopened constantly, that shows up immediately. Before fieldwork:

• Close each month on a defined timeline and stop reopening prior periods.
• Reconcile every balance sheet account — cash, AR, AP, accruals, fixed assets, debt, equity — and keep the reconciliation with supporting detail.
• Document any significant estimates (allowances, reserves, useful lives) and the logic behind them.

3. Build the PBC list before they send you one

Auditors work from a “prepared by client” (PBC) list — the documents they need from you. You don’t have to wait for it. A typical PBC list includes bank statements and reconciliations, the AR and AP aging, revenue contracts, the fixed-asset register, debt agreements, lease agreements, payroll reports, board minutes, and the general ledger detail. Assemble a shared, well-labeled folder now.

4. Nail revenue and cut-off

Revenue is where first audits most often stumble. Under ASC 606, revenue is recognized as you satisfy performance obligations, following a five-step model — not simply when you invoice or get paid. Make sure your revenue recognition policy is written down, applied consistently, and that period-end cut-off is clean (that December’s revenue is really December’s).

5. Expect testing of journal entries and estimates

Auditing standards (AICPA AU-C section 240) require auditors to test journal entries — especially manual, unusual, or period-end entries — for signs of error or manipulation. If you can show who posted each entry, who approved it, and why, that part of the audit gets much shorter.

The payoff of readiness

Preparation is not busywork — it directly lowers your fee. Private-company audits commonly run from about $7,000 for the smallest companies to $15,000–$35,000 for mid-market businesses, and disorganized records and weak controls are among the biggest cost drivers, because auditors bill the hours they spend cleaning up before they can test. Walking in ready is the single most reliable way to pay less and finish faster.