Bookkeeping

How Far Behind Are Your Books? A Self-Check and What Cleanup Involves

Behind on your books is common, and fixable. Here is how to gauge how far behind you are, and what cleanup and catch-up actually involve.

By Patrick Ndungutse, founder of Onavani  ·  Updated September 2026  ·  3 min read

If your books are behind, you are in good company. Many owner-run businesses reach a busy stretch, stop keeping up, and then avoid looking because the backlog feels bigger every month. The good news is that the size of the problem is usually easier to measure than it feels, and the work is orderly once it is scoped.

Five questions to size the problem

  1. How many months are behind or messy? Count from the last month you are confident is right.
  2. How many accounts are involved? Bank accounts, credit cards, loans and payment platforms all count.
  3. Do you have a statement for every account for every month? Missing statements slow the work down.
  4. Roughly how many transactions per month? Volume drives the time it takes.
  5. Has anything been filed on these books? A tax return, a loan application, or a report to an investor.

Two numbers matter most: how many months, and how many accounts. Both together set the size of the job. A few months across one or two accounts is a small cleanup. A year or more, or many accounts and cards, is a much bigger one.

Cleanup and catch-up are two halves of the same job

  • Cleanup fixes what is there: miscategorized transactions, stale reconciliations, duplicates, odd balances.
  • Catch-up adds what is missing: months that were never entered or reconciled.

Most backlogs need both, so at Onavani they are one service: Bookkeeping Cleanup and Catch-Up, sized to how far behind you are.

What the work looks like

  1. Review. Look at the file before touching anything: uncategorized balances, unreconciled accounts, duplicates, missing months, balances that look wrong.
  2. Plan. Set the order of work, oldest month first, and confirm the scope.
  3. Correct. Work month by month: categorize, reconcile each account to its statement to the cent, then move on.
  4. Fix the balance sheet. Clear out leftover items in accounts like Undeposited Funds and opening balance equity, and tidy payables and receivables.
  5. Lock. Once every account ties to its statement, the period is locked so it stays right.
  6. Hand off. You get a written summary, and from then on the books are kept current monthly.

What to gather before you start

  • Statements for every bank, card and loan account for the whole period (or bank feeds that go back far enough).
  • Your most recent filed tax return, if the period has been filed.
  • A list of any accounts closed during the period.
  • Payroll and sales tax reports, if they apply.
  • A note of anything you already know is wrong.

If a statement is missing, ask your bank for it; many banks can supply months or years of history. If one truly cannot be found, the gap is noted openly rather than guessed at.

If a return has already been filed

Periods covered by a filed tax return are not changed without you and your CPA agreeing to it. If cleaning up the books would change a number that was already reported, that is flagged to you and your CPA before it is touched, not after. If you have a tax return or a loan application overdue because the books are behind, tell your CPA now; the books do not have to be perfect for that conversation.

What you should expect from whoever does it

  • A written scope before work starts: which months, which accounts, what is excluded.
  • A clear time estimate, counted from when your records are complete.
  • A message before extra work, not after. If the job turns out bigger than scoped, you are told what was found and what it changes, and you approve the change in writing before it continues.
  • A summary at the end covering what was fixed and what is still open.

Not sure where your books stand?

Take the free five-minute checklist. It is twelve yes-or-no questions and tells you what to fix first.

Take the free checklist

Related service: Bookkeeping

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