Small business owners across London often reach a fork in the road once their finances genuinely outgrow a simple spreadsheet: do you bring on a part-time bookkeeper for a set number of hours a week, or move instead to a full-service affordable accountant who handles everything from day-to-day records through to statutory tax filing? Both are legitimate, well-established options used widely by small businesses across the capital, but they solve genuinely different problems, and choosing based purely on which one sounds cheaper on paper can leave real, potentially costly gaps in your ongoing compliance. This comparison breaks down exactly what each option covers, and what commonly gets left out.
What a Part-Time Bookkeeper Typically Covers
A part-time bookkeeper, often engaged for a set number of hours weekly or monthly, generally focuses on transactional record-keeping: entering invoices, reconciling bank transactions, chasing outstanding payments and keeping your accounting software current. This is genuinely valuable for keeping day-to-day finances tidy and gives you accurate, up-to-date numbers to work from. What it does not typically include is statutory tax filing, formal annual accounts preparation, or the kind of proactive tax planning advice that requires a qualified accountant's training and regulatory standing.
It is worth being specific with any part-time bookkeeper about exactly which hours are covered and what falls outside scope, since ambiguity here is a common source of frustration later, particularly around busy periods like VAT return deadlines when extra time is often needed unexpectedly.
What Full-Service Affordable Accountant Support Adds
A full-service affordable accountant typically bundles bookkeeping oversight together with VAT returns, payroll, Corporation Tax filing, annual accounts preparation and ongoing tax advice, all under one relationship and often one predictable monthly fee. This means you are not left wondering who is responsible for the statutory side of your finances once the books are up to date; the same team that maintains your records also ensures everything required by HMRC and Companies House is filed correctly and on time.
This bundled approach also tends to reduce the risk of anything being overlooked entirely, since a single team is accountable for the full compliance calendar rather than relying on you to remember which deadlines fall outside your bookkeeper's specific remit.
Comparing the Actual Workload Covered
It helps to think of this less as a binary choice and more as a spectrum of workload coverage. A part-time bookkeeper covers the transactional layer only, leaving compliance and strategy uncovered unless you separately engage an accountant, often on top of the bookkeeper's fee, which can end up costing more in total than a single bundled full-service arrangement. A full-service affordable accountant covers the entire spectrum, which often makes more financial sense once your business has grown past the very simplest stage of trading.
Mapping out your actual workload against each option's coverage, on paper, is a genuinely useful exercise. Many business owners are surprised to find how much is left uncovered by a bookkeeper-only arrangement once they list every statutory obligation their business actually carries.
Cost Comparison in Practice
A part-time bookkeeper in London might cost somewhere between £150 and £400 a month depending on hours and complexity, but this figure typically excludes any tax filing or annual accounts work, which would need to be purchased separately from an accountant, often at additional cost around year end. A full-service affordable accountant's fixed monthly package, covering the full range of compliance work, can in many cases work out comparably priced or even better value once you account for everything a bookkeeper-only arrangement leaves out.
It is worth requesting a genuine total annual cost comparison from both options, including any separate year-end accountancy fees a bookkeeper-only arrangement would require, rather than comparing headline monthly figures alone, which can be genuinely misleading.
What to Check Before Choosing Either Option
- Does the fee include statutory filing, or is that charged separately?
- Who is responsible for Corporation Tax and annual accounts?
- Is tax planning advice included, or purely historical reporting?
- How quickly can either option respond to an HMRC query?
- What happens if my transaction volume increases partway through the year?
Working through this checklist with any prospective bookkeeper or accountant before signing an agreement helps avoid the uncomfortable situation of discovering, months into the relationship, that a task you assumed was covered was never actually included in the original scope of work. Putting the answers in writing, even in a short email exchange, also gives you something concrete and specific to refer back to later if a genuine disagreement about scope of work ever happens to arise down the line.
When a Part-Time Bookkeeper Alone Is the Right Fit
For a very new or extremely simple business, particularly a sole trader with minimal transactions, a part-time bookkeeper paired with an annual visit to an accountant for tax return purposes can be perfectly adequate and cost-effective. The risk is failing to notice when the business has outgrown this arrangement, so it is worth revisiting the decision at least once a year as turnover, employee numbers or complexity change.
Setting a simple annual calendar reminder to properly review this arrangement, ideally timed around your annual tax return, is a genuinely low-effort habit that prevents you from carrying an outdated, ill-fitting setup for years on end without ever really noticing your circumstances have moved on considerably in the meantime.
When Full-Service Support Becomes the Better Value
Once a business takes on employees, approaches the VAT threshold, or starts making decisions that carry genuine tax implications, a full-service affordable accountant typically delivers considerably better value than piecing together a bookkeeper and separate one-off accountancy help. The continuity of one team managing the full picture also tends to catch issues earlier, since nothing falls into the gap between "that's not my job" answers from separate providers. It is worth reading about comprehensive business planning and financial support to understand how a bundled approach might suit your growth stage.
This continuity also matters when something unexpected happens, such as an HMRC query about a specific transaction. A full-service accountant who has handled your records from the start can usually answer quickly, whereas a fragmented setup often means tracking down whoever handled that particular piece of work.
Making the Right Call for Your Business
If you are unsure which option fits your current stage, it is worth having an honest conversation with a firm offering tailored financial advice for small businesses about your actual transaction volume, employee numbers and growth plans, rather than defaulting to whichever option sounds cheapest on the surface.
A short, no-obligation conversation with a prospective accountant is usually more than enough to get an honest, practical sense of which option genuinely fits your circumstances, and a good, trustworthy firm will tell you plainly if a lighter bookkeeping-only arrangement is genuinely all you need right now.
The Bottom Line
A part-time bookkeeper and a full-service affordable accountant are not simply cheaper and pricier versions of the same thing; they cover genuinely different scopes of work. For simple, early-stage businesses, a bookkeeper alone with occasional accountant input can work well. For anything more complex, a full-service affordable accountant often ends up better value once you account for everything a bookkeeper-only arrangement leaves uncovered, including the time and stress that gaps in coverage can quietly create.
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Fred Michael & Co Ltd provides business planning and financial advice to help London businesses choose the right accounting service for them.