An East London accountant explains where small business bookkeeping goes wrong, what HMRC expects you to keep, and how to catch up before January.

Most of the bookkeeping problems I see don’t start with bad numbers. They start with a box of receipts, a few months of “I’ll sort it at the weekend”, and a VAT return due on Friday. By the time an owner picks up the phone, the job is no longer bookkeeping. It is a rescue. At Walden Way & Co, where we provide bookkeeping services in East London from our office in the Royal Docks, that is the point at which many new clients first get in touch.

The short answer

A bookkeeping service records your sales, purchases, bank transactions and payroll as they happen, reconciles them to your bank statements every month, and keeps the records HMRC expects you to hold. For VAT-registered businesses, it also keeps digital records that meet Making Tax Digital rules so returns can be filed directly from the software.

Why bookkeeping slips in this part of London

East London has an unusual mix of businesses. Around the Royal Docks you have event suppliers and caterers whose income arrives in bursts whenever ExCeL hosts a big show. Canning Town and Custom House have trades and family-run shops that still take a fair amount of cash. A short hop away in Canary Wharf, plenty of people leave salaried jobs to contract or consult and suddenly find themselves running a limited company.

These businesses have very different books, but the pattern is the same. Busy months push the admin back, quiet months feel like the time to catch up, and then a deadline arrives.

Five mistakes that cost small businesses money

  1. One card for everything. Paying for the van, the weekly shop and the client lunch from the same account makes every transaction a judgement call later. A separate business account is the cheapest bookkeeping fix there is.
  2. Reconciling once a year. If the books are only matched to the bank at year end, errors from March are still sitting there in December. Monthly reconciliation catches duplicated invoices, missed refunds and payments that never cleared.
  3. Losing the paper trail. HMRC expects limited companies to keep records for six years from the end of the accounting period. Sole traders must keep them for at least five years after the 31 January submission deadline. A photo of each receipt in your software is enough, as long as it is legible.
  4. Missing the VAT threshold. Registration is compulsory once taxable turnover goes over £90,000 in any rolling 12-month period, not just the tax year. A caterer with a strong autumn at ExCeL can cross it in a single quarter without noticing.
  5. Trusting the bank feed blindly. Xero, QuickBooks and Sage are excellent, but auto-categorisation learns from whatever you clicked last time. One wrong rule can put a year of equipment purchases into “general expenses” and cost you capital allowances.

How often should a small business do its bookkeeping?

Monthly is the minimum for most businesses. If you handle a lot of transactions, as a café or shop does, aim for weekly. Quarterly used to be acceptable for many sole traders, but Making Tax Digital for Income Tax changes that. Since April 2026, sole traders and landlords with qualifying income above £50,000 have had to keep digital records and send quarterly updates to HMRC. The threshold drops to £30,000 from April 2027. Books that are only touched four times a year will struggle to keep up.

DIY, a freelance bookkeeper or an accountancy firm?

Doing it yourself works when you have few transactions and the discipline to sit down every week. A freelance bookkeeper is good value for straightforward data entry. An accountancy firm offering bookkeeping services in East London costs more but connects your bookkeeping to your year-end accounts, tax returns and payroll, so nothing gets lost between them. This matters most once you are VAT-registered or employing staff.

Whichever route you choose, ask who checks the work. Bookkeeping that a qualified accountant never reviews tends to look fine until the year-end accounts are prepared.

What to look for in a local bookkeeping service

  • A qualified accountant reviewing the books at least quarterly, not just at year end.
  • Experience with your software, or a sensible plan to move you onto one that fits.
  • A short monthly summary in plain English showing profit, cash and what is owed to HMRC.
  • A fixed monthly fee based on transaction volume, so there are no surprises.
  • An office you can actually get to. Being able to drop off a folder or sit down for twenty minutes before a deadline is still useful, even with everything else online.

Getting your books back on track before January

If you are behind, the 31 January self assessment deadline is the one to plan around. Start by downloading every bank statement since your last year end and getting them into your software. Then match the income, chase missing purchase invoices from suppliers (most can resend them in minutes), and set aside a realistic figure for tax. Leaving it until the second week of January almost always means paying more for the work, and sometimes paying a penalty as well.

Frequently asked questions

How much does a bookkeeping service cost in London? Most firms quote a fixed monthly fee based on the number of transactions, whether you are VAT-registered and whether payroll is included. Ask for a fixed quote rather than an hourly rate, and check what the fee includes.

Do I still need a bookkeeper if I use Xero or QuickBooks? The software records and sorts transactions, but someone still has to check the rules, reconcile accounts and fix errors. Many owners use the software day to day and have an accountant review it monthly.

Can bookkeeping be done remotely? Yes, almost all of it. Many owners still prefer a local firm they can meet in person when something goes wrong or a big decision is coming up.

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