Sole trader vs limited company for tradesmen: an honest comparison

What each one actually is

A sole trader is you, trading. The business’s money is your money, taxed once through Self Assessment (income tax plus Class 4 National Insurance), and its debts are your debts.

A limited company is a separate legal person you own and direct. It pays corporation tax on profits; you take money out as salary, dividends or both, each with its own tax treatment. Your personal liability is generally limited to the company — hence the name.

The case for staying sole trader

• Simplicity: one tax return, minimal filings, and your accountant bill stays small
• Privacy: no public accounts or filings at Companies House
• Flexibility: the money is simply yours — no dividend paperwork or director’s loan traps
• At modest profits, the overall tax difference vs a company is small — sometimes negative once extra accountancy costs are counted

The case for a limited company

• Limited liability: if a job goes badly wrong beyond what insurance covers, your house isn’t automatically on the line
• Tax planning at higher profits: retaining profit in the company, timing dividends, and pension contributions give options a sole trader lacks
• Commercial image: some main contractors, commercial clients and landlord agencies prefer or require dealing with a company
• CIS works differently: a company offsets CIS deductions against its PAYE bill in-year rather than waiting for a Self Assessment refund

So where’s the crossover?

There is no magic number, but the practical pattern: below roughly £30–40k of profit, simplicity usually wins and incorporation saves little or nothing. As profits climb well beyond that — especially if you don’t need to draw everything out to live on — the company’s options start paying for its admin. Risk can trump tax at any level: one big contract with real liability exposure is itself a reason to incorporate.

Two cautions: incorporating to “pay less tax” while drawing every penny out usually disappoints, and going limited adds real obligations — statutory accounts, confirmation statements, corporation tax returns, and director’s responsibilities. Get advice from an accountant with your actual numbers; this guide is orientation, not advice.

Either way, the paperwork is the business

Whichever structure you pick, HMRC and your accountant need clean records — and clean records come from capturing jobs, invoices and payments as they happen, not reconstructing them in January. TradeHub OS keeps every quote, invoice and payment against the job, itemises labour and materials (which CIS cares about), and syncs to Xero either way.