Bookkeeping is simply keeping an accurate record of money in and out. This guide covers the core ideas, income, expenses, categories and reconciliation, without the jargon.
Published July 2026 · Updated July 2026
Bookkeeping is the day-to-day recording of your business's money: sales coming in, costs going out, and money owed both ways. Accounting then interprets those records into reports and tax figures. Get the bookkeeping right and everything downstream is easier.
Each transaction is tagged to a category, your chart of accounts, such as Sales, Software or Rent. Consistent categorising is what lets software produce a meaningful profit and loss automatically.
Regularly matching your records against your bank statement (reconciliation) catches missed entries, duplicates and errors early, so you can trust your numbers. A bank feed makes this quick.
Record little and often, keep business and personal money separate, capture receipts as you go, and reconcile weekly. These small routines prevent a stressful catch-up before every deadline.
Not for everyday use of software, which handles double-entry for you. A basic grasp helps you understand your reports, but it is not essential to start.
Little and often beats a big catch-up. Weekly is a good rhythm for most small businesses; daily if you have a bank feed.
Yes, especially with beginner-friendly software. Many owners do their own books and bring in an accountant for year-end or advice.
This guide is general information for UK small business owners, not accounting, tax or legal advice. Rules, rates and thresholds reflect 2026/27 and change over time; always check the linked official source or a qualified adviser for your situation.