Catch up the books, or start fresh from a clean date
What each route gives you, and the question that decides it.
If a tax return, a lender, a buyer or an investor reads those months, they get rebuilt. If nothing downstream depends on them, a proved opening balance on a chosen date is faster and holds up. Most answers are both: rebuild what is read, open clean before that.
Work it out in a minute
Months behind, when the month closes, hours a week and revenue in. Out: what is riding on the books, and whether it is a rhythm problem or a catch-up.
What we take on
Start with what reads them
A filed return, a loan application, a buyer in diligence, an investor update, a grant report. Whatever reads those months sets the boundary, and everything above the boundary gets rebuilt properly.
Catch up when a return sits on them
Bank statements in, month by month, until every balance ties. Slower, and it is the only version that stands up to an amendment, an audit or a diligence request two years from now.
Start fresh when nothing reads back
Choose a date, prove the balances on that date, open from there. Faster, and it holds for as long as everything before the date is genuinely closed and nobody needs to look at it.
The answer is usually both
Rebuild the periods that are filed or funded. Open clean before that. One project, one date named in writing, and the split recorded so the next person to ask gets the same answer.
The opening balance is the actual work
A fresh start is worth exactly what its opening balances are worth. Cash, receivables, payables, loans, payroll liabilities and inventory each get proved on the date rather than carried across.
Your CPA draws the line
They decide what a return needs and what an amendment would cost. We keep the books they file from. Where the boundary sits is their call, and it is worth asking before the work starts.
What the choice actually turns on
Ask one question first: who reads these months. A filed return, a lender running covenants, a buyer in diligence, an investor, a grant body. Every one of those is a reason to rebuild rather than to draw a line.
If the answer is nobody, a clean start is defensible. Pick a date, prove what you own and owe on that date, and open the books there. The months before it stay as bank records, which is what they already are.
Most companies land on both. The filed year gets rebuilt because a return sits on it. The two years before that open from a proved balance, because nothing reads them and rebuilding them buys nothing.
The proving is where the time goes, and it is the part people skip. An opening balance means a reconciled bank and card position, a receivable list somebody has chased, a payable list somebody has confirmed, loan balances from the lender and payroll liabilities from the payroll provider.
Catch-up work runs faster than people expect once the statements are in hand. The volume is known and the sequence is fixed: reconcile the bank, then the cards, then the loans, then the payroll, then close each month in order.
Whichever route you take, decide the date once and write it down. The version that costs money later is the one where two people believe two different things about where the clean books begin.
Questions we get
How far back do we actually have to go?
As far back as something reads. A filed return means that year gets rebuilt. A lender running covenants means the periods in the covenant get rebuilt. Beyond that, a proved opening balance is enough.
Your CPA sets the boundary. Ask them before the work is scoped, because the answer changes the size of it.
Is starting fresh allowed?
Opening a set of books from a proved date is ordinary practice. What is not ordinary is opening from balances nobody checked, because every later reconciliation inherits the error and it compounds quietly.
The date is a decision. The balances on it are arithmetic.
How long does a catch-up take?
It moves with the number of months and the number of accounts, not with how bad the books look. Statements in hand, a year of a single bank and one card closes quickly. Several entities and a payroll history do not.
The tool on the accounting page puts a number on your own months before anybody quotes anything.
Can we do it while the current month keeps running?
Yes, and it is the version that works. One track closes the current month on a set day so nothing new falls behind. A second track works backwards through the history until the two meet.
Running only the catch-up means finishing it with a fresh backlog.
What if the records are incomplete?
Bank and card statements carry most of it, and they can be pulled again from the institution. Missing receipts affect what a return can claim rather than whether the books can be rebuilt.
Where a document genuinely cannot be found, the entry is recorded on what is known and flagged, rather than guessed and buried.
Do we need to change accounting software first?
No, and doing both at once is how a catch-up stalls. Bring the books current where they already live. A migration is a separate project with its own date, and it is much easier from books that already tie.
Clean first, move second.
More in the guides and every answer in one place.
Shaheer leads the work, with engineers, writers, filers and analysts behind him. C-suite operations for a San Francisco AI company, Six Sigma on the process side, Anthropic certified on the Model Context Protocol, ten years across eight industries. See what we have built