Messy bookkeeping rarely announces itself all at once. It builds slowly: a missed reconciliation here, an unrecorded expense there, until the numbers in your Xero account no longer match what is actually happening in your bank account. A bookkeeping repair fixes that gap and gets your records back to a state you can rely on.
Signs your books need repair
A few signs come up again and again. Bank accounts that have not been reconciled in months. Categories that do not match what actually happened, so reports look wrong even though the cash is fine. Missing invoices or receipts that leave gaps in the trail. VAT returns submitted from numbers nobody is confident in. If any of this sounds familiar, the issue usually is not effort, it is that bookkeeping fell behind and nobody has gone back to put it right.
What a bookkeeping repair actually involves
We work exclusively in Xero, so every repair starts with a full review of your Xero account: bank feeds, supplier and customer records, VAT submissions, and payroll entries if relevant. Every discrepancy gets logged before anything is changed, so there is a clear record of what was wrong and what was corrected. From there we reconcile every account, fix miscategorised transactions, chase down missing documentation where it exists, and rebuild the records so they match reality.
On a different platform? We migrate first
If your books are currently in QuickBooks, Sage, or another system, the repair starts with migrating your data into Xero. We bring across your chart of accounts, transaction history, and open invoices, then carry out the same repair process once everything sits in one place. This avoids trying to patch a system you will be moving away from anyway, and means the fix you end up with is the one you will actually keep using.
Common causes of messy books
Bookkeeping usually falls behind for one of a few reasons: the person doing it left and nobody picked it up properly, the business grew faster than the bookkeeping process could keep up with, software was switched mid-year without migrating the data cleanly, or it was done in spare time between everything else running a business involves. None of these are unusual, and none of them are difficult to fix once someone sits down and works through the backlog properly.
Why doing it yourself usually backfires
Fixing your own books sounds straightforward until you are several months in and still finding new discrepancies. Untangling bad data takes a different skill set to entering new transactions correctly, and it is easy to fix one error in a way that creates two more elsewhere. Most businesses that try to repair their own books end up paying an accountant to redo the work anyway, just later and under more time pressure.
How long does a repair take?
How long a repair takes depends on how far behind the records are and how much supporting documentation still exists. A few months of light disorganisation might take a handful of sessions to put right. A full year of inconsistent entries, missing receipts, or a mid-year software switch usually takes longer, because every transaction needs checking rather than just the obvious gaps.
What happens after the repair
A repair on its own does not stay fixed unless something changes about how the books are kept going forward. Once your Xero records are accurate, we set up a process that keeps them that way: regular reconciliation, consistent categorisation, and a clear handover if you bring bookkeeping in-house afterwards. The goal is a one-off fix, not something you need every year.
Is bookkeeping repair right for your business?
If your bank reconciliation is months behind, your VAT figures do not match your bank statements, or you are heading into an audit, a tax return, or a sale and do not trust your own numbers, a repair is the right move. The same applies if you are still on a different platform and want both the move to Xero and the cleanup handled together. The longer messy books sit, the more time it takes to untangle them, so it is worth acting as soon as you notice the gap rather than waiting until it becomes urgent.
Getting started
We begin with a short review of your current records, in Xero or wherever they currently live, to understand the scope of the work before quoting anything, so you know what you are dealing with before committing to a fix. Get in touch and we will take it from there.
Bookkeeping repair is not about blame. It is about getting your numbers back to something you can make decisions on, and the sooner that happens, the less there usually is to untangle.
What a bookkeeping repair costs
Every repair is quoted as a fixed fee after an initial review of your records — the price depends on how many months are outstanding, how many transactions are involved, and how much of the paper trail survives. What it is never based on is an hourly rate, because an hourly rate rewards the problem taking longer. You know the full cost before any work starts, and the quote includes migration into Xero if your records currently live somewhere else.
How to prepare for a repair
You do not need to tidy anything first — in fact, please don’t, because well-meaning tidying often deletes the evidence a repair relies on. What helps is simply gathering access: online banking or PDF bank statements for the affected period, sales invoices, purchase receipts in whatever state they are in, logins for any software you have used, and any letters from HMRC. From there the process runs without you.
One last point on timing: the best moment to repair your books is before a filing deadline forces the issue. A repair done under VAT-return or self assessment pressure costs the same but leaves no room to plan around what the clean numbers reveal.
Frequently asked questions
How much does a bookkeeping repair cost in the UK?
It depends on how many months are outstanding, your transaction volume, and the state of the records. NDCA reviews your books first, then quotes a fixed fee for the whole repair — not an open-ended hourly rate. Call 01903 968618 to arrange the review.
How far back can a bookkeeping repair go?
As far as it needs to. Multi-year backlogs are routine — the process is the same whether you are three months or three years behind, it just takes longer.
Will HMRC penalise me for being behind on my books?
Messy books are not an offence in themselves, but they lead to late or inaccurate filings, which do attract penalties and interest. Getting the records repaired is the first step; once the numbers are reliable, any outstanding returns can be filed and, where needed, we can liaise with HMRC on your behalf.
My records are in spreadsheets and another app. Can you still repair them?
Yes. Migration is part of the repair — everything is rebuilt in Xero, whatever combination of spreadsheets, QuickBooks, Sage or shoeboxes it currently lives in.
How do I stop my books getting messy again?
Ongoing bookkeeping. Once the repair hands back clean records, a weekly or monthly bookkeeping service keeps them reconciled — most clients move straight onto a fixed monthly fee so the backlog never rebuilds.
