Sole Trader vs Limited Company for Trades

Sole Trader vs Limited Company for Tradespeople

A sole trader and their business are the same legal thing; a limited company is separate. For most tradespeople starting out, sole trader is the simplest and cheapest way to work. Going limited tends to make sense once profits are steady and comfortably into five figures, because it can cut tax and protect your personal assets. The right answer depends on your numbers, your risk and how much admin you can stomach.

The two structures in plain terms

As a sole trader, you are the business. You register with HMRC as self-employed, file a Self Assessment return once a year, and keep any profit after tax. If the business owes money, you owe money — there is no line between the two.

A limited company is a separate legal entity. You set it up at Companies House, and the business owns its own money, debts and contracts. You typically become both a director and a shareholder, paying yourself through a mix of salary and dividends. The company pays Corporation Tax on its profits, and you pay personal tax on what you draw out.

That single difference — separate entity or not — drives almost everything below.

Liability: whose house is on the line

This is the one that matters most and gets talked about least.

As a sole trader, your liability is unlimited. If a job goes badly wrong, a supplier chases an unpaid bill, or a claim lands that your insurance does not fully cover, your personal assets are exposed. That can mean your savings, and in a worst case your home.

A limited company gives you limited liability. If the company runs into debt it cannot pay, creditors can generally only go after the company’s assets, not yours — provided you have not given a personal guarantee and have not traded fraudulently or wrongfully. For a trade carrying real risk on site — a builder handling large deposits, a roofer working at height, a firm taking on subcontractors — that protection is a genuine reason to incorporate, quite apart from the tax.

Two things to keep in mind. First, decent public liability and professional indemnity cover matters whichever structure you pick; the company wrapper is not a substitute for insurance. Second, banks and suppliers often ask directors of newer companies for a personal guarantee, which quietly puts your own assets back on the hook for that specific debt.

Tax: where the money actually changes

Here is the honest version, without invented figures.

A sole trader pays Income Tax and Class 4 National Insurance on business profits through Self Assessment. It is simple, and when profits are modest the total tax bill is often much the same as a company’s — sometimes lower once you account for company running costs.

A limited company pays Corporation Tax on its profits. You then take money out as a small salary plus dividends, and dividends are taxed at lower rates than ordinary income and carry no National Insurance. That split is where the saving usually comes from. There is also more scope to plan — leaving profit in the company, timing dividends across tax years, or splitting shares with a spouse who genuinely works in the business.

The catch is that the saving only outweighs the extra cost and admin once profits are high enough. Below that point you can end up paying an accountant more than the company structure saves you. We are deliberately not quoting a magic threshold, because the tax bands and rates move and the break-even shifts with them — but as a rough rule of thumb, many trades find limited starts to pull ahead once profits are consistently into the tens of thousands above what they need to draw to live on. Get an accountant to run your actual numbers before you decide; this is exactly the sum they do in twenty minutes.

One more point worth flagging: Making Tax Digital for Income Tax is now rolling out for the self-employed. It is mandatory from 6 April 2026 for qualifying income over £50,000, from 6 April 2027 over £30,000, and from 6 April 2028 over £20,000. That means quarterly digital updates rather than one annual return, which nudges some sole traders towards tidier bookkeeping either way.

CIS: how it hits each structure

If you work in construction, the Construction Industry Scheme applies whichever way you trade, and it changes your cash flow more than most people expect.

Under CIS, a contractor deducts money from the labour part of your payments — not materials — and passes it to HMRC as an advance on your tax. The deduction rates are:

• 20% if you are registered as a subcontractor under CIS

• 30% if you are not registered

• 0% if you hold gross payment status

So the first job is to register. Sitting at 30% because you never signed up is money needlessly held back all year.

For a sole trader, those CIS deductions are set against your Income Tax and Class 4 NI when you file your Self Assessment. If too much was taken, you get the difference back as a refund.

For a limited company, the deductions are offset against the company’s PAYE and other liabilities through your payroll, rather than through a personal return. It works, but it needs proper monthly payroll records to reclaim correctly, which is more admin.

Gross payment status is the prize for established firms with a clean compliance record: contractors pay you in full and you settle all your tax yourself. It helps cash flow enormously, and it is often easier to qualify for and manage inside a limited company. If most of your income comes through CIS, that is a real point in favour of going limited once you are big enough.

Admin and cost: the part people underestimate

Sole trader admin is light. Register with HMRC, keep records of income and expenses, file one Self Assessment a year, pay your tax. Many trades handle it with a shoebox and a spreadsheet, though MTD is making a bookkeeping app the sensible choice.

A limited company carries more obligations:

• Annual accounts filed at Companies House

• A Corporation Tax return to HMRC

• A confirmation statement each year

• Payroll (PAYE) if you take a salary

• Director’s responsibilities and your own personal Self Assessment on top

Most company directors pay an accountant to handle it, and that fee is a real running cost to weigh against any tax saving. Your business affairs also become more public: your company name, registered office and accounts are visible on the Companies House register, which some trades dislike and others do not mind.

Credibility: does “Ltd” win more work

Sometimes, at the margins. Larger contractors, commercial clients and some letting agents prefer — or insist on — dealing with a limited company, partly for their own CIS and liability reasons. “Ltd” after your name can read as more established.

Be realistic, though. For a domestic customer choosing a plumber or electrician, your reviews, your response time and whether you turn up when you say you will matter far more than your legal structure. Plenty of respected sole traders are booked solid. Do not incorporate for image alone; do it when the tax, liability or CIS maths says so.

So, which should you pick

Rough guide, not gospel:

• Just starting, or profits still modest — sole trader. Simple, cheap, easy to run, and you can change later.

• Profits steady and growing, real risk on site, lots of CIS work, or chasing bigger contracts — get an accountant to price up going limited. It often starts to win at that stage.

You are not locked in. Many trades begin as sole traders and incorporate once the numbers justify it. The move is straightforward with the right help, so there is no rush to over-engineer it on day one.

FAQ

Can I switch from sole trader to limited company later? Yes, and many trades do. You set up the company, transfer the business across, tell HMRC, and your accountant handles the timing so nothing falls through the cracks. It is a common, well-trodden path.

Is a limited company always cheaper on tax? No. When profits are modest, the extra running costs can cancel out or beat any saving. The tax advantage grows as profits rise. Have an accountant run your actual figures before deciding.

Do I still deal with CIS if I go limited? Yes. CIS applies to the work, not the structure. A company offsets the deductions through its payroll rather than a personal return, and it is often a better route to gross payment status.

Does going limited protect my house? Largely, yes — that is the point of limited liability. But it does not cover personal guarantees you have signed, and it is no substitute for proper insurance. Keep your public liability cover strong either way.

How much profit before limited is worth it? There is no fixed number, and it shifts with the tax rules. As a rough steer, it tends to make sense once profits sit comfortably into the tens of thousands beyond what you draw to live on. An accountant will pin down your break-even quickly.

Do customers care whether I’m limited? Commercial and larger clients sometimes do. Most domestic customers care far more about your reviews, reliability and price than the letters after your name.

Get the work in, whatever your structure

Sole trader or limited, the business only works if the phone rings. Trade Pilot is free to join, and only charges you when a real local job lands in your inbox — no monthly fees, no paying for dead-end enquiries. Each lead is sold to no more than three local trades, so you are not one of thirty firms fighting over the same job. Set your trade and your area, and let the work come to you.

Related reading: tax deductions for tradesmen · VAT threshold for trades · how to register as self-employed · payroll for your first employee