Deciding whether to trade as a limited company or as a sole trader is the first real fork in the road for most new UK businesses, and an awful lot of people pick one because somebody in a pub had a strong opinion about tax. It matters. It just doesn’t matter as much, or in the way, that most people think it does when they are three weeks into their first month of trading.
The right answer depends on how much profit you expect, who your customers are, and how much paperwork you are willing to live with. Not on which sounds more professional.
What A Limited Company Actually Is
A limited company is a separate legal person. That sounds like lawyer talk, but it is the whole point. The company signs the contracts, the company owns the van, the company owes the money, and the company pays its own tax. You are a director, which means you run it, and usually a shareholder, which means you own it. You can be both, and you can be the only one.
You register it at Companies House, pick a name nobody else has, give a registered office address, and file information about who controls it. The official guidance on setting up a limited company walks through the steps and shows the current registration fee, which is worth checking on the day rather than trusting a figure you read somewhere.
Registration itself is quick. Often the same day. The commitments that come with it last for as long as the company exists.
The Sole Trader Side Of It
As a sole trader, you are the business. There is no separation. You tell HMRC you are self employed, you file a Self Assessment return each year, and you pay income tax and National Insurance on your profit. Profit being what is left after allowable expenses, not what lands in your bank account.
There is no annual filing at Companies House, no confirmation statement, no set of accounts on a public website for competitors and nosy neighbours to read. A sole trader keeps their numbers between themselves and HMRC in a way that a limited company simply cannot.
You can trade under your own name or a business name. You can register for VAT if you want to or once your turnover crosses the threshold, which changes from time to time, so look it up rather than relying on a number somebody quoted you last year.
Tax: Where The Money Difference Actually Sits
Here is the part everybody argues about. Profit in a limited company is taxed with corporation tax first. You then take money out, usually as a modest salary plus dividends, and pay personal tax on the dividends. Rates, allowances and thresholds move around, sometimes every spring, so any specific figure in a blog post is a hostage to fortune. Check the current ones before you decide.
What is durably true is the shape of it. At low profits, the difference between the two routes is small, and often smaller than the extra cost of running the company properly. At higher profits, the ability to leave money in the company and take it out over more than one tax year starts to matter, and that flexibility is a genuine advantage rather than a trick.
Rough rule of thumb from the way accountants price this work: expect to pay somewhere around £600 to £1,500 a year for a limited company’s accounts and returns, against maybe £200 to £500 for a straightforward sole trader Self Assessment. If your tax saving is £400, you have bought yourself paperwork and paid for the privilege.
Limited Liability Is Not The Shield People Imagine
The headline reason people give for forming a limited company is protecting the house. If the business goes under, the theory goes, creditors can take the company’s assets and not yours.
Broadly true. With big holes in it.
- Banks and finance companies routinely ask directors of a new limited company for a personal guarantee. Sign one and you have handed back the protection for that debt.
- You are still personally liable for your own negligence. Setting up a company does not stop somebody suing you over work you did badly.
- Landlords often want a guarantee too, especially on a first commercial lease.
- Directors who keep trading while the company is clearly insolvent can be held personally responsible.
For most trades and services, decent public liability and professional indemnity cover does more real protecting than the letters after your name. Insurance pays claims. A company structure just decides who gets sued first.
The Admin You Take On With A Limited Company
This is the part that catches people out, and it is the honest reason plenty of one person businesses stay as sole traders for years.
Every limited company files annual accounts, a confirmation statement, and a corporation tax return. If you pay yourself a salary you probably need a PAYE scheme, which means filing every time you run payroll, not once a year. Company money and personal money have to stay apart, so there is a separate bank account and real bookkeeping rather than a shoebox of receipts.
Miss a filing deadline and the penalties arrive automatically. They are not enormous at first, but they escalate, and they land whether or not the company traded or made a penny.
None of this is hard. It is relentless, which is different. If you already dread the idea of one tax return a year, adding four or five obligations will not go well.
What Goes On The Public Record
Company name, registered office address, the director’s name, month and year of birth, the names of people with significant control, and a version of the accounts. All of it searchable, free, by anybody with a phone.
Use your home address as the registered office and your home address is on the internet permanently. It is a common regret. You can pay an accountant or a formation agent for a registered office address instead, typically £40 to £100 a year, and it is money well spent if you work from a spare room.
Sole traders have their own version of this problem, since customers and consumer rules will often expect a contactable address on invoices and terms, but you are not publishing a filing history to the world.
Money Starts To Feel Different
One thing nobody warns first timers about: in a limited company, the money in the business account is not yours. It belongs to the company. You take a salary, or you declare a dividend out of profit, and if you just help yourself to it you have created a director’s loan that has to be repaid or taxed.
Sole traders can move money about freely. The whole lot is yours already, and the tax bill comes later, which is exactly why a lot of sole traders get caught out in January. Different structure, different discipline required, same outcome if you spend the tax money.
Does A Limited Company Win You More Work?
Sometimes, genuinely. If you are contracting into large firms, subcontracting on commercial construction, or doing IT and consultancy work through agencies, plenty of them will only engage a limited company. Some procurement processes rule out sole traders on principle, fair or not.
If you cut hair, fix boilers, walk dogs, coach clients or run a market stall, your customers will never once ask. They want somebody who turns up, does a good job, and answers the phone. Nobody has ever chosen a plumber for their filing history.
Be honest about which world you are selling into. That single question settles the structure for a lot of people faster than any tax calculation.
Being Findable Matters More Than The Letters After Your Name
Whichever way you register, the thing that decides whether you make a living is whether people can find you and believe you when they do. A sole trader with a proper listing, decent reviews and somewhere to send an enquiry will out earn a limited company that exists only on a Companies House page. This is where a small, tidy site pays for itself: it gives your quotes somewhere to point, and it is where our small business website design work sits, built and looked after for a monthly fee rather than a lump sum you cannot spare in month one. If you want the mechanics of that first, here is how the pay monthly setup works.
Switching Later Is Completely Normal
You are not marrying this decision. Thousands of people start as sole traders, build up, and incorporate once the profit justifies it. Your accountant will handle transferring the trade, and there are things to sort out: a new business bank account, moving any VAT registration or applying afresh, updating insurance so the policy names the company, telling regular customers who to make invoices out to now.
It costs a few hundred pounds in professional fees and a fortnight of admin. That is a much smaller problem than forming a limited company on day one, discovering you hate the filing, and paying to close it down again.
Going the other way, from company back to sole trader, is messier. Another argument for starting simple unless you have a clear reason not to.
Questions Worth Answering Before You Register
- What profit do you honestly expect in year one, not year three?
- Will any of your customers refuse to deal with a sole trader?
- Are you taking on debt, a lease or staff early?
- Can you live with strict deadlines, or will you file late and pay for it?
- Do you mind your name and a registered address being public?
Answer those five and the choice usually makes itself. Where it doesn’t, an hour with an accountant costs less than getting it wrong and is the best-value hour a new business buys.
So, Limited Company Or Sole Trader?
For most people starting out alone with modest first year profits, sole trader is the sensible opening move: cheap, quick, low admin, and easy to change later. Register a limited company when the money genuinely justifies it, when your customers demand it, or when you are taking on real risk that you want held at arm’s length.
What you should not do is incorporate because it sounds more serious. That instinct costs people hundreds a year in fees and hands them a filing calendar they never needed.