A bookkeeping health check is one of the most useful, and most underused, services a small business accountant can offer. Rather than a full annual audit or an ongoing monthly engagement, it is a focused, one-off review designed to establish exactly where your records stand right now, what needs fixing, and what habits would prevent the same issues recurring. For London business owners who suspect their books might not be in perfect shape but are not sure where to start, a health check is often the ideal first step.
Reviewing Bank Reconciliation Accuracy
The starting point of almost every health check is a thorough review of bank reconciliation. This means confirming that every transaction recorded in your software genuinely matches your actual bank statement, with no unexplained gaps, duplicate entries, or unreconciled balances sitting unresolved. Reconciliation issues are one of the most common findings in a health check, and they are also one of the fastest to identify once someone experienced is actually looking for them.
A thorough reconciliation review also checks that opening and closing balances tie up correctly across every account you use, including any savings, credit card, or foreign currency accounts that are sometimes overlooked in day-to-day bookkeeping.
This stage often surfaces the most immediately actionable findings of the whole exercise. Business owners are frequently surprised by how many small discrepancies have quietly accumulated, and equally reassured once each one is traced, explained, and corrected as part of the same review rather than left hanging as an ongoing question mark over the accounts.
Checking Expense Categorisation and Coding
Next, a health check typically examines how expenses have been categorised across your chart of accounts. This is where misclassifications tend to surface: personal expenses blended with business costs, capital purchases coded as day-to-day expenses, or inconsistent categorisation that makes it difficult to compare spending accurately across different periods. Correcting these issues retrospectively can meaningfully improve the accuracy of your profit and loss reporting going forward.
A reviewer will also check whether your chart of accounts itself is fit for purpose. A generic default template, left unmodified since the software was first set up, rarely reflects the specific categories that matter most for your particular business, and adjusting it properly makes every future report noticeably more useful.
Assessing VAT Compliance and Treatment
For VAT-registered businesses, a health check will assess whether VAT has been applied correctly across your transactions, whether reclaimed VAT has genuinely been eligible, and whether your VAT returns have been prepared in line with Making Tax Digital requirements. This is a particularly important area to review, since VAT errors can carry penalties if left uncorrected, and many business owners are simply unaware of specific rules that apply to their particular sector or product mix.
Where errors are identified, a professional will also advise on the correct way to disclose and correct them with HMRC, which is often far less daunting than owners initially fear, provided the issue is addressed proactively rather than left to be discovered later.
This stage of a health check also confirms whether your VAT scheme itself is still the right fit. Businesses sometimes remain on a flat rate or cash accounting scheme long after their circumstances have changed, and a periodic review is often the only point at which anyone actually checks whether a different scheme would now suit the business better.
Evaluating Payroll and Employee Records
If you employ staff, a health check will typically review your payroll records against HMRC's Real Time Information requirements, confirm that tax codes and National Insurance categories are correctly applied, and check that pension auto-enrolment obligations have been properly met. Payroll errors are among the most consequential to leave unchecked, since they affect employees directly and are subject to specific statutory deadlines that carry penalties for late or incorrect submissions.
Employee records are also checked for basic completeness at this stage, including up-to-date contracts, correct starter and leaver paperwork, and accurate holiday accrual calculations. These are easy to overlook amid the day-to-day pressure of running a business, but gaps here can become genuinely time-consuming to resolve if an employment dispute or an HMRC enquiry ever arises.
- Bank and credit card reconciliation across all accounts
- Expense categorisation and chart of accounts consistency
- VAT treatment and Making Tax Digital compliance
- Payroll accuracy, including tax codes and pension contributions
- Software configuration and automation opportunities
Reviewing Software Setup and Automation
Beyond the numbers themselves, a good health check also examines how your bookkeeping software is configured. Many businesses use only a fraction of their platform's capability, missing out on automated bank rules, recurring invoice templates, or integrated reporting that could save significant ongoing time. A health check often identifies quick configuration wins that make future bookkeeping noticeably faster and less error-prone, independent of any historical corrections that are also needed.
Access permissions are also worth reviewing at this stage. It is surprisingly common for former employees, ex-partners, or old advisers to retain access to financial software long after their relationship with the business has ended, which is both a security risk and, in many cases, simply an oversight nobody had got round to tidying up.
Producing a Clear Action Plan
The genuinely valuable output of a health check is not just a list of problems, but a prioritised action plan: what needs correcting immediately, what can be addressed over the coming weeks, and what ongoing process changes would prevent the same issues recurring. A good small business accountant will present this plan in plain language, focused on practical next steps rather than technical jargon that leaves you unsure what to actually do with the findings.
A well-structured plan will also indicate roughly how long each item should take and who is best placed to action it, whether that is you, an in-house team member, or the accountant themselves. This clarity prevents the plan from simply sitting unopened after the initial review, which is unfortunately a common fate for reports that are thorough but not genuinely actionable.
Deciding What Happens Next
A health check often naturally leads to a decision about ongoing support. Some businesses use the findings to continue managing their own bookkeeping, armed with clearer processes and a better understanding of what to watch for. Others realise, having seen the scale of what needed correcting, that ongoing professional support makes more sense than repeating the exercise every year or two. Either outcome is a reasonable one, and a good adviser should be comfortable with you choosing the path that genuinely suits your business rather than pushing you toward a particular service.
Whichever path you choose, it is worth scheduling a follow-up review after a few months to confirm the recommended changes have genuinely taken hold. New habits can slip quietly back into old patterns once the initial motivation of the health check fades, and a short follow-up check is a low-cost way to make sure the improvements actually stick.
The Bottom Line
A bookkeeping health check gives you an honest, structured picture of where your financial records genuinely stand, covering reconciliation, categorisation, VAT, payroll, and software configuration in a single focused review. For London business owners who have never had their books properly reviewed by a professional, it is often the clearest and most cost-effective way to find out what, if anything, needs fixing. If it has been a while since anyone independently checked your books, a bookkeeping health check is well worth arranging.
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