Series A diligence is usually not a formal audit. Investors and their financial reviewers read your books closely, ask where numbers come from, and expect the answers to tie out, but that is a review exercise, not an attestation. Audit-readiness is the state of being able to answer those questions quickly from records you already keep. This checklist is what fast-growing companies put on the shelf before a term sheet, ordered so that each item makes the next one possible.
The costly version of this work is the retroactive version. Converting cash-basis books to accrual and reconstructing a revenue recognition policy after diligence has already started means rebuilding history while investors wait on it. Keep accrual books from seed and Series A prep becomes a review of work already done rather than a rebuild.
What "audit-ready" means, and what it does not
Two things get conflated here. No accounting standard or federal law requires a private company to obtain an audit because it raised a Series A. What creates an audit obligation is a contract you sign. Venture financing documents routinely include an information-rights covenant obligating the company to deliver annual financial statements to major investors, and that covenant often specifies audited statements. One SEC-filed investors' rights agreement requires delivery to each major investor within 120 days after fiscal year end of a balance sheet, statements of income and cash flows, and a statement of stockholders' equity, "all such financial statements audited and certified by independent public accountants of nationally recognized standing selected by the Company" (NerdWallet investors' rights agreement, Section 3.1(a)).
So the honest framing is this: diligence itself probably will not be an audit, but the round may commit you to audits every year afterward. That is a term worth reading before signing rather than discovering at your first fiscal year end. Terms like these are negotiated, and in the filing above the parties later amended the covenant to extend the delivery deadline, which tells you how binding the original deadline was.
One structural point follows from the word "independent." An audit is an attest engagement, and under the AICPA Code of Professional Conduct the accountant must be independent in both fact and appearance. A firm that audits books it keeps itself faces what the Code calls a self-review threat, the risk it will not properly evaluate its own work (AICPA auditor independence resources). Bookkeeping for an attest client is not automatically disqualifying, but it is constrained, and management must designate someone able to take responsibility for the results. In practice, the firm that maintains your books is not the firm that audits them. Zinance does bookkeeping, tax, and fractional CFO work, and does not perform audits.
The Series A audit-readiness checklist
Ordered by dependency. Each item is easier once the ones above it are done, and several are simply impossible before then.
- Accrual-basis financial statements for every period since inception. Everything below assumes accrual. A P&L, balance sheet, and cash flow statement on a cash or hybrid basis will need substantial adjustment before anyone can test it, and the adjustment gets harder the more history there is.
- A consistent [chart of accounts](/glossary/chart-of-accounts). Applied the same way across every period. Inconsistent categorization makes period-over-period comparisons meaningless, which quietly undermines every chart in your deck.
- Bank, card, and payment-processor reconciliations through the last closed month. Every account reconciled, with no unexplained clearing or suspense balances. This is the foundation everything else ties back to. Books that are "mostly current" are not reconciled.
- A written revenue recognition policy under ASC 606. Document how you apply the five steps to your own contract types, so the policy is a document you hand over rather than a conversation you improvise.
- A contract liability schedule, per contract, tying to the balance sheet. This is what most teams call the deferred revenue schedule. It should reconcile monthly, not at year end.
- Signed customer contracts and order forms behind every recognized dollar. Organized so any revenue line can be traced to the agreement that supports it. Recognized revenue with no signed contract behind it is difficult to defend.
- Vendor contracts, major invoices, and expense support. The expense side gets less attention than revenue but the same principle applies: amounts on the P&L should trace to documents.
- Payroll and equity compensation records. Reconciled payroll, plus documentation for stock-based compensation and your 409A valuations.
- A cap table reconciled to your legal documents. Every SAFE, convertible note, option grant, and conversion, agreeing with board consents and your equity ledger. This is a separate workstream from the books and often owned by different people, which is exactly why it drifts.
- Corporate and tax records. Formation documents, board minutes, prior filings, and any state or sales-tax registrations, current and accessible.
Why revenue recognition draws the most attention
Revenue tends to attract scrutiny because it is the line where reasonable-looking books can be subtly wrong. The recurring trap is treating bookings, cash collected, and recognized revenue as interchangeable. They are not. If a customer prepays for a year, that cash is not revenue today. It is an obligation to deliver, and it recognizes as you deliver. Keeping ARR distinct from recognized revenue matters for the same reason.
This is the substance of ASC 606, which applies to all entities, including private ones. Its core principle, in the FASB's words, is that "an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services." The standard sets out five steps (FASB ASU 2014-09):
- Step 1. Identify the contract(s) with a customer.
- Step 2. Identify the performance obligations in the contract.
- Step 3. Determine the transaction price.
- Step 4. Allocate the transaction price to the performance obligations in the contract.
- Step 5. Recognize revenue when (or as) the entity satisfies a performance obligation.
A terminology note that saves confusion in diligence: the codification's term for prepaid-but-undelivered revenue is contract liability, defined by FASB as "an entity's obligation to transfer goods or services to a customer for which the entity has received consideration (or the amount is due) from the customer." Most teams say deferred revenue, and reviewers use both. Knowing they refer to the same balance is enough.
The fix is unglamorous and effective: apply ASC 606 consistently from the start, reconcile the schedule every month, and keep each recognized dollar traceable to a signed contract. Done continuously, the part of diligence with the most surface area becomes the part you worry about least.
Common gaps
Well-run companies tend to share the same blind spots. These are the ones worth checking for before someone else does.
- Still on cash basis. Accrual conversion late in a process is the largest avoidable time sink on this list, because every other item depends on it.
- Cap table drift. The spreadsheet and the legal documents disagree after a few SAFEs and option grants. Reconcile before you raise, not during.
- Unrecorded accruals and prepaids. Missing accruals make periods look cleaner than they are. When they surface later, they invite questions about everything else.
- Revenue with no paper trail. Recognized revenue that cannot be traced to a signed contract is hard to explain and easy to notice.
- Stale reconciliations. Every account should reconcile through the last closed month, not the last quarter.
- No written revenue policy. Teams often apply ASC 606 reasonably but have never written down how. The policy is the deliverable.
How to get ready without derailing the raise
During a raise you have two jobs: keep the company running and get through diligence. Rebuilding a year of books yourself competes with both. The workable path is to keep clean accrual books continuously so there is little to fix, and to have a fractional CFO own the data room, the financial model, and investor Q&A. That is the work Zinance does: accrual bookkeeping maintained on an ongoing basis, plus CFO-level support through the round. If your financing documents commit you to annual audited statements, you will engage an independent audit firm separately, and clean books keep that engagement short.
This article is general information about diligence preparation, not accounting, legal, or tax advice for your company. Revenue recognition and financing terms depend on your specific contracts and documents. Review both with your accountant and counsel.