How to set up bookkeeping for a new business

Separate business and personal money

Keep business transactions separate from personal spending. For a limited company, the company is a separate legal entity and its banking must be separate from the owners’ personal banking. A dedicated business account is the simplest practical route.

A sole trader may be able to use a personal or business account, subject to the bank’s terms. Even where a separate account is not a formal requirement, using one makes expenses, reconciliations and the audit trail much easier to follow.

Choose how you will keep the books

A spreadsheet can work for a very simple business with few transactions and one person maintaining it. It needs a consistent structure, secure storage and a clear routine rather than becoming a collection of disconnected tabs.

Accounting software becomes more useful as transaction volume, VAT, bank feeds, unpaid invoices or reporting needs grow. Outsourced bookkeeping is another option where the founder would rather hand the recurring work to someone else. Choose the lightest setup that can stay accurate as the business develops.

Set up the basic categories

Use consistent categories so similar transactions are treated the same way. The exact structure should follow how the business earns money and what management needs to understand; it does not need to be a giant chart of accounts.

Create a simple sales invoice process

Decide who raises invoices, when they are issued and how payment is followed up. Use a unique invoice number and include the supplier and customer details, a clear description of what was supplied, the supply and invoice dates, the amounts charged, the total due and clear payment terms.

Invoice details differ for sole traders, limited companies and VAT-registered businesses. Check the current GOV.UK requirements and add VAT information only where it applies to the business.

Capture purchases and expenses

Keep supplier invoices, receipts and other evidence as the business spends money. Record enough detail to understand the supplier, date, amount, category and business purpose where that is not obvious.

Digital copies can make the routine quicker and the records easier to find, provided they remain complete, readable and backed up. Capturing evidence as it arrives is much easier than rebuilding a year from a bank statement and a box of receipts.

Reconcile the bank regularly

Bank reconciliation means checking that the transactions in the accounting records agree with what actually happened in the bank. Missing, duplicated or incorrectly recorded items should be investigated rather than left to accumulate.

Choose a recurring rhythm that reflects the number of transactions and the decisions being made. A busy business may need frequent checks; a quieter one may need less. The important point is that reconciliation happens while the transactions are still familiar.

Keep on top of what you are owed and what you owe

Maintain a current view of unpaid customer invoices, supplier bills and their due dates. That helps the business follow up late customers, avoid missed supplier commitments and understand when cash is expected to move.

This is why bookkeeping is operational, not just a tax exercise. Current records show what has been earned, what has been paid and what still needs attention.

Build a month-end habit

Set aside a short, repeatable month-end routine. The aim is to leave the records complete enough to understand the month and begin the next one without unresolved clutter.