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Series A

Bookkeeping for Series A startups

At Series A the books stop being for you. They are a diligence artefact, and they will be read by people looking for reasons to worry.

Parag Jain, CPA
Parag Jain, CPAFounder, Zinance·Last updated August 2026·6 min read

Summarize this article

At a glance

Basis
Accrual, not optionalCash-basis statements will not survive diligence
Revenue recognition
ASC 606 appliesEspecially for subscription contracts
New audience
A real boardReporting cadence set by the board, not by you

The change at Series A is not volume. It is audience. Up to now the books answered your questions. From here they answer a diligence process, a board, and eventually an auditor — people reading specifically for what does not add up.

Accrual, and revenue recognised properly

Cash basis will not survive a Series A process. Beyond that, subscription revenue has to be recognised under ASC 606 — over the period you deliver, not when the invoice is paid. A company billing annually upfront and recognising on receipt is overstating current revenue and understating deferred revenue, and diligence finds it.

Why restating is worse than being small

An investor discovering in week three of diligence that revenue needs restating does not simply adjust the number. They adjust their confidence in every other number you gave them, at the point in the process where you have least leverage.

What diligence actually asks for

  • Monthly accrual P&L and balance sheet, usually 24 to 36 months back.
  • A revenue schedule that reconciles to the P&L and shows the recognition policy.
  • A cap table that agrees with what the equity accounting says.
  • Bank reconciliations proving the cash figure is real.
  • Payroll records matching the headcount narrative in the deck.

None of it is hard if the close has been done monthly. All of it is brutal if it is being assembled in a fortnight while also running a fundraise.

409A and the board

A priced round triggers a fresh 409A valuation, and option grants after it price off the new figure. You also now have a board with its own reporting cadence, which is set by them rather than by what is convenient.

What we do for Series A companies

Accrual close monthly with a named accountant, revenue recognised to policy and documented, board packs that reconcile, and a diligence request answered from records that already exist.

Frequently asked questions

Do we need an audit at Series A?+
Usually not. Most Series A rounds close on reviewed or unaudited accrual statements. What they do require is accrual accounting done properly and consistently — an audit tends to arrive later, and is far cheaper if the preceding years were closed monthly.
What is the most common diligence problem you see?+
Revenue recognition on annual contracts. Billing a year upfront and recognising it on receipt overstates the current period and hides deferred revenue. It gets found, and the credibility cost is worse than the number itself.
How far back will investors look?+
Typically 24 to 36 months of monthly statements. If the books were kept on cash basis over that period, restating them retroactively is possible but expensive and looks exactly like what it is.

Numbers you can actually trust

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