Accountant vs accounting software (UK sole trader)

What an accountant does that software can't

Software follows rules; an accountant applies judgement. That matters for the grey areas — capital vs revenue spending, use-of-home apportionment, mixed-use assets, whether an unusual cost is allowable — and for planning ahead rather than just recording the past. Crucially, an accountant can represent you if HMRC opens an enquiry. If your situation has any complexity, that human judgement is the thing you're paying for.

What software does cheaper

For the repetitive work, software wins on cost: capturing income and expenses, categorising transactions, reconciling the bank, and sending MTD quarterly updates. It's a low monthly cost (with some genuinely free options) and keeps your records clean and digital — which is exactly what Making Tax Digital now requires.

Cost, honestly

Ranges go stale fast, so treat these as directional and get quotes for your own situation:

• Software: typically a low monthly subscription; some free tiers exist for simple needs.
• Accountant: from a modest annual fee for a simple Self Assessment to more for bookkeeping, VAT, and ongoing advice — driven by complexity and location.
• The real comparison isn't just price — it's your time and the cost of getting something wrong.

The hybrid most sole traders land on

The common, sensible setup: software all year for clean records and MTD submissions, plus an accountant for the year-end, the tricky calls, or as the business grows. You get software's low cost and human judgement where it actually matters. Choosing tools? See our free vs paid guide and what to look for in accounting software.

Questions to ask before paying for either

• For software: is it HMRC-recognised for MTD, and does my plan include submission? What's the limit that makes me upgrade?
• For an accountant: what's included (year-end only, or bookkeeping and advice)? Are they familiar with my software? How do they charge for enquiries?
• For both: will they work together cleanly — can the accountant access my software data?

Keeping clean records makes either option cheaper — start with the records guide and allowable expenses.

FAQ

Do I need an accountant if I use accounting software?

Often not for day-to-day bookkeeping — software handles capture, categorising and quarterly updates cheaply. But an accountant adds judgement for edge cases, tax planning and HMRC enquiries. Many sole traders use software all year and an accountant for a periodic check or the year-end.

What can an accountant do that software can't?

Judgement. Software follows rules; an accountant interprets grey areas (capital vs revenue, use-of-home splits, mixed-use assets), spots planning opportunities, and represents you if HMRC asks questions. That human judgement is what you're really paying for.

How much does an accountant cost for a sole trader in the UK?

It varies widely by complexity and location — from a modest annual fee for a simple Self Assessment to more for bookkeeping, VAT and ongoing advice. Accounting software is typically a low monthly subscription (some free tiers exist). Get quotes for your specific situation; ranges in any article go stale fast.

What's the most common setup for UK sole traders?

A hybrid: use affordable software to keep clean digital records and handle MTD quarterly updates through the year, then use an accountant for the year-end, tricky calls, or as your business grows. You get software's low cost plus human judgement where it matters.