When you are months behind
You are months behind on the books. Start here, not at the beginning.
This is more common than the silence around it suggests, and it is nearly always recoverable. Books get rebuilt from bank statements and documents all the time; the history is rarely as lost as it feels.
The thing that turns a recoverable situation into an expensive one is doing it in the wrong order — starting at the oldest month and working forward, while something with a date on it quietly passes.
Four steps, and the first one is not bookkeeping.
The instinct is to open the earliest unreconciled month and start categorising. That is the most expensive possible first move, because it spends your scarcest resource — attention — on the part with no deadline attached.
| Step | What to do | Why it comes here |
|---|---|---|
| 1 · Find what has a date | List every obligation with a deadline: tax registrations, returns, filings, anything a bank, landlord or investor has asked for. Note which have passed. | Penalties attach to dates, not to effort. This is the only part of the backlog that is still getting worse while you work. |
| 2 · Establish the cash spine | Get complete bank statements for the whole period. Every account, every month, no gaps. | The bank is the one record that is complete whether or not you kept up. Everything else can be rebuilt against it. |
| 3 · Rebuild forward from the bank | Work through the bank line by line, attaching documents where they exist and flagging where they do not. | This produces a defensible set of books rather than a tidy-looking one. What is missing stays visible instead of being quietly guessed. |
| 4 · Decide how far back is worth going | Some history is required. Some is merely desirable. These are different, and only one of them is worth paying for. | Reconstructing detail nobody will ever need is the most common way a catch-up becomes more expensive than it should be. |
Not the volume. The gaps.
Founders assume the cost of a catch-up scales with how many months are outstanding. It does not, particularly. Twelve months of clean, complete records with matching documents is a mechanical exercise. Three months with missing invoices, cash payments nobody logged and a personal account used for business is genuinely difficult.
- Missing documents. A bank line says money left. Without the invoice or receipt, what it was for is a guess, and a guess recorded confidently is worse than a gap left open.
- Mixed accounts. Business and personal money in one place turns every line into a question. This is the single largest driver of catch-up cost and the easiest thing to fix going forward.
- Cash. Money that never touched a bank leaves no trace to rebuild from. Whatever is not written down is genuinely gone.
- Unexplained transfers. Money moved between accounts you own is not income and not a cost, but it looks like both, and it inflates every figure until someone identifies it.
None of this is a reason not to start. It is a reason to expect the work to be about resolving ambiguity rather than typing, and to be suspicious of anyone who quotes a catch-up by the month without asking what state the evidence is in.
Current is not the same as closed.
A catch-up can end in two quite different places, and it is worth knowing which one you are buying.
Current means the transactions are recorded up to today. Closed means each period has been reconciled, the balances agree to something external, what could not be resolved is listed with a reason and an owner, and the result is something you could hand to a lender or an auditor without apologising for it.
The gap between those two is where most catch-up work quietly stops. Everything that arrived during the backlog became an obligation — an invoice you issued, a bill you owe, a filing that fell due — and a catch-up that records them without carrying each one to closure has only made the mess legible.
And what it will not pretend.
At Par takes catch-up work in the order above: dated obligations first, then the bank spine, then a rebuild that leaves gaps visible rather than filled in. You send what you have — statements, photographs of invoices, a folder of PDFs, a shoebox described over a call — and it comes back closed, with what could not be resolved named rather than absorbed.
It will not invent a document that does not exist, and it will not record a transaction confidently when the evidence does not support it. Where the amounts do not agree, the line stops and someone asks you one question rather than guessing. That is slower in the moment and considerably cheaper afterwards.
At Par prepares and hands over. It never moves your money and never files on your behalf — including the overdue thing you found in step one. You authorise and submit; a qualified accountant is accountable for the standard the work is done to.
Usually after admitting how far behind they are.
How far behind is too far behind? +
There is no point at which it becomes impossible. Businesses reconstruct several years of history regularly, and the bank record exists whether or not anyone kept up. What changes with time is not feasibility but cost, and the cost is driven by evidence quality rather than by elapsed months. Twelve tidy months are easier than three messy ones. The exception is anything with a deadline that has already passed, because that part does keep getting worse.
Will I be in trouble for being behind? +
Being behind on your own records is not itself an offence anywhere we operate. What creates exposure is a dated obligation that was missed — an unfiled return, an unregistered business, a deadline that passed. That is why the first step is to establish what had a date on it rather than to start recording. Most founders discover the position is narrower than they feared: one or two real deadlines, and a large amount of work that is merely undone.
Can books be rebuilt without receipts? +
Partly. Bank statements establish that money moved, when, and to or from whom, which is enough to build a defensible skeleton. What receipts add is what the money was for, which affects how it is treated and whether it can be claimed. Where a document is genuinely gone, the honest treatment is to record what is known and mark what is not, rather than to categorise on assumption. A gap left visible is defensible. A confident guess is not.
Should I do it myself or pay someone? +
The rebuild is mechanical and the judgement is not. If your records are complete and the period is short, doing it yourself is reasonable and instructive. The case for paying is strongest when there are gaps to resolve, mixed personal and business money, foreign currency, or a deadline in play — because those need decisions rather than data entry, and a wrong decision recorded confidently is harder to unwind than an empty field.
What should I do first, today? +
Write down every obligation you can think of that has a date attached: tax registration, returns, any filing, anything a bank or landlord has asked for. Mark which have already passed. Then download complete bank statements for the whole period from every account. Those two things take an afternoon, and they convert a vague dread into a defined piece of work — which is most of the difficulty.
Send us the actual state of it. We have seen worse and we will say so plainly.
How many months or years, which accounts, whether documents exist, and whether anything has a deadline. We will tell you what has to happen first and what can wait.
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Reviewed by an ACCA on the At Par team · Last updated 29 July 2026 · This page is written to be used on any provider, including At Par. See what we actually do.