The core package
For most small companies the core package covers bookkeeping, bank reconciliation, VAT returns, the annual accounts and the corporate tax return, with payroll added if the company employs people. Anything beyond that, such as management reporting, budgeting or advice on a specific transaction, is normally quoted separately and should be described that way from the start.
Predictability over headline price
Small businesses benefit more from a predictable monthly amount than from the lowest available fee. A cheap quote that excludes year-end work tends to be more expensive over a full year than a comprehensive package, and it makes comparison harder because the excluded items are invoiced irregularly.
Access to a decision-maker
In small companies the owner usually needs to speak to someone who knows the file. Ask how queries are raised, who answers them and how quickly. Where a provider operates a centralised service desk without a named contact, the answer may still be satisfactory, but it should be a conscious choice rather than a discovery.
Software and remote delivery
Cloud bookkeeping has made small-business accounting largely remote and largely self-service for document submission. That is efficient, but it moves work to the client: photographing receipts, coding transactions and answering queries promptly. Ask what the provider expects the client to do each month, because that expectation is part of the cost.
When it is time to change
Common triggers are growth beyond the firm's capacity, a move to a different country, dissatisfaction with turnaround, or a fee increase that is not matched by service. Before changing, establish the handover format and the timing of the switch so that no filing period is left without an owner.
Applying this
Small-business accounting works best when scope, calendar and contact are all explicit, and when the provider's published price is understood as the starting point of a written agreement rather than the whole cost.