Do I need a bookkeeper if I have a limited company?

You need accurate records. That can be you, a bookkeeper or an accountant — but HMRC and Companies House still expect complete figures. Software helps; it does not excuse missing invoices.

What is the most common bookkeeping mistake?

Treating the business bank account as a personal wallet, then trying to untangle drawings, expenses and VAT at year end.

Bookkeeping difficulties for small businesses (and how to fix them)

Why UK small businesses struggle with bookkeeping — mixed personal spend, missing receipts, VAT categories and year-end panic — and a practical way to keep records HMRC-ready.

Most small-business bookkeeping problems are not “I don’t understand double entry”. They are everyday habits: receipts in a carrier bag, Amazon orders mixed with stock, the director paying a supplier on a personal card, and a VAT return completed from memory.

HMRC’s Making Tax Digital rules for VAT already expect digital records and software filing. Even if you are not VAT registered, Companies House accounts and the CT600 still need a clean year of numbers. Messy books cost more in accountant time than any software subscription.

The difficulties we see every week

1. Personal and business money in one pot

A limited company is a separate legal person. Paying the weekly shop from the company account, or putting stock on a personal card and never recording it, distorts profit, VAT and director’s loan accounts. Open a dedicated business account and record director drawings properly.

2. No categories until year end

A bank statement that only says “CARD PAYMENT 49.99” is not a set of accounts. You need a simple list: sales, materials, subcontractors, motor, insurance, bank charges, drawings. Categorise as you go — monthly is enough for most micro-entities.

3. VAT on the wrong boxes

Standard-rated sales, zero-rated goods, reverse charges and the Flat Rate Scheme all land in different VAT boxes. Guessing at the deadline is how businesses overpay or underpay. Keep a running VAT workbook or software that maps each bank line to a box.

4. Missing purchase invoices

You cannot claim input VAT or a corporation-tax deduction on a cost you cannot evidence. Photograph invoices the day they arrive. Match them to the bank line. If a supplier only emails a payment link, save the confirmation.

5. Leaving it all for the accountant in month 12

Year-end then becomes forensic reconstruction. That is slow, expensive and more likely to miss allowable costs. A 30-minute monthly tidy beats a two-week panic in January.

A bookkeeping routine that actually sticks

Export the business bank CSV every month (or connect the feed if you use one).
Tag each line: income, expense category, VAT rate, or director drawing.
File VAT from those tagged figures — do not invent box 1 and box 4 from a calculator.
Keep a folder of PDFs named by date and supplier.
At year end, roll the same categories into accounts and CT600 rather than starting again.

HydraTax can take a bank export through categorisation into year-end figures and MTD VAT boxes — so small companies are not maintaining three different spreadsheets.

When to get help

Get an accountant involved before you register for VAT, take on employees, or close a year with mixed personal spend. Bookkeeping difficulties compound; they rarely shrink on their own. The goal is not perfect ledgers. It is records you could show HMRC without reconstructing a year from emails.