What catch-up bookkeeping costs, and why it is quoted separately

A fair number of the companies we take on arrive the same way: the books were current in February, something got busy in March, and it is now September. Nobody decided to stop. It simply stopped, and every month since has made the next one harder.

The first question is almost always what it costs to fix. The honest answer is that it is a separate job from the monthly work, priced separately, and quoted before anyone starts — and the reasons why are worth understanding, because they are also the reasons the number moves.

It is reconstruction, not late data entry

Ordinary bookkeeping is forward work. The month happened, you have the statements, and the questions are fresh enough that somebody remembers what the payment to the unfamiliar vendor was for. The work is mechanical because the context is still in the room.

Catch-up is the opposite. Nobody remembers the March transfer. The contractor who was paid in April has changed bank details twice since. Whether the deposit in May was a customer payment, a loan, or the owner moving money is now a question that has to be researched rather than recalled, and it has to be answered before the year makes any sense.

That research is most of the cost. The data entry is fast; deciding what a transaction actually was, eighteen months after the fact, is not.

What actually drives the number

1. 01

   How many months are open

   The obvious one, and the least interesting. Twelve months of clean transactions is a smaller job than four months of tangled ones, so the count matters less than what is inside it.

2. 02

   How many transactions a month carries

   The same driver as the monthly fee, and for the same reason. A consultancy with sixty lines a month and an e-commerce seller with four thousand are not the same year of work, however similar the calendar looks.

3. 03

   What state the evidence is in

   Whether the bank feed still reaches back that far, whether receipts exist for anything, whether there is a prior file to start from or a folder of exports. This is the driver that most often doubles a quote.

4. 04

   How many accounts and entities are in scope

   Every additional bank account, card, processor, and loan is another statement series to reconcile. Two entities with money moving between them is more than twice the work of one.

5. 05

   Whether anything has already been filed

   If a return went out on numbers that turn out to be wrong, correcting the books and correcting the filing are two different jobs, and the second one has to be decided deliberately rather than discovered.

Evidence decays, and it decays on a schedule

This is the part that surprises people, and it is the reason waiting is rarely cheaper. Banks and card issuers keep downloadable history for a limited window — often a year or two, sometimes less — and accounting software feeds usually reach back far less than that. Past the window you are ordering statements, sometimes on paper, sometimes for a fee per statement, and always on somebody else's timetable.

Payment processors behave the same way. Detailed payout reports that reconcile gross sales, refunds, and fees are readily available for recent months and progressively less so for old ones. A closed account is worse again: once it is closed, the history can be genuinely gone.

The part that is not bookkeeping at all

If the open period covers a year for which something has already been filed, the scope stops being a bookkeeping question. Corrected books may change a return that has been submitted, and whether to amend is a judgement with a cost on both sides — one that belongs to whoever signs the return, informed by the corrected numbers rather than in advance of them.

The same applies to information returns. Contractors paid above the threshold in a prior year still needed a 1099, and a missing W-9 is much harder to collect from somebody you no longer work with than from somebody you are about to pay. Catch-up frequently surfaces both.

None of this is a reason to delay. It is a reason for the quote to name it explicitly rather than leaving it to be discovered in month two.

How it should be quoted

• As a separate fee from the monthly rate, so you can see what the history costs and what the going-forward service costs.
• After somebody has actually looked — at the account list, a transaction count, and the state of the evidence — rather than from a description over the phone.
• With the scope written down: which months, which accounts, which entities, and what happens if something material turns up inside them.
• With prior filings named as in or out of scope, not left ambiguous.
• As a fixed number wherever the scope can be pinned down, so the incentive is to finish rather than to bill hours.

What you should have at the end

Not just a file that balances. You should end with every bank, card, and processor account reconciled to a statement through the last closed month, a balance sheet where you can say what supports each line, and a written note of the judgement calls somebody made on your behalf — the transactions that were categorised on an assumption, and what the assumption was.

That last document is the one people skip and the one that matters in a year, when somebody asks why a number is what it is. If a catch-up finishes without it, the work is not actually finished.