Choosing between sole trader and limited company is one of the first decisions you’ll make when starting a business – and one that affects almost everything that comes after.
How much tax you pay, what happens if things go wrong, how much admin you deal with, and how easy it is to grow.
There’s no universal right answer. The best structure depends on what you earn, how much risk you carry, and where you want the business to go.
Let’s break down the key differences so you can make the right call for your situation.
The Basics
Sole Trader
A sole trader is the simplest business structure. You and the business are the same legal entity. You keep all the profits after tax, make all the decisions, and bear all the risk.
Setting up is straightforward – you register with HMRC for Self Assessment and start trading. There’s no Companies House registration, no public filing of accounts, and no requirement to have a separate business bank account (though it’s a good idea).
The trade-off is personal liability. If the business incurs debts it can’t pay, your personal assets – savings, home, car – are on the line. There’s no legal separation between you and the business.
Limited Company
A limited company is a separate legal entity. It’s owned by shareholders, run by directors, and registered with Companies House. In practice, for most small businesses, the director and shareholder are the same person – but the legal distinction matters.
The company owns its own assets, enters its own contracts, and is liable for its own debts. Your personal liability as a shareholder is limited to the amount you’ve invested. If the company fails, creditors can’t come after your personal assets (unless you’ve given personal guarantees or acted fraudulently).
The cost of that protection is more admin: annual accounts filed at Companies House, a corporation tax return to HMRC, confirmation statements, and statutory record-keeping.
Your financial information also becomes public to some extent, since summary accounts are filed on the public register.
Tax: Where the Real Difference Sits
Tax is usually the main reason people consider incorporating. The two structures are taxed in fundamentally different ways, and at different rates.
How Sole Traders Are Taxed
As a sole trader, all your business profits are treated as personal income. You pay income tax and Class 4 National Insurance on those profits through Self Assessment. For 2026/27, the key rates are:
- Personal allowance: £12,570 (no tax)
- Basic rate: 20% on income from £12,571 to £50,270
- Higher rate: 40% on income from £50,271 to £125,140
- Additional rate: 45% on income above £125,140
- Class 4 NIC: 6% on profits between £12,570 and £50,270, plus 2% above that
These thresholds have been frozen since 2021 and won’t move until at least April 2028. That means inflation is quietly pushing more sole traders into higher tax bands each year, even if their real earnings haven’t changed.
How Limited Companies Are Taxed
A limited company pays corporation tax on its profits. The rates for 2026/27 are 19% on profits up to £50,000 (the small profits rate) and 25% on profits over £250,000, with marginal relief applying in between.
But that’s only the first layer. The money still has to get from the company to you – and that’s where personal tax comes back into play.
Most director-shareholders use a combination of salary and dividends to extract profits. The salary is taxed through PAYE like any other employee’s wages. Dividends, meanwhile, are paid out of post-tax profits and carry their own tax rates. For 2026/27, the dividend rates are:
- 10.75% for basic rate taxpayers (up from 8.75%)
- 35.75% for higher rate taxpayers (up from 33.75%)
- 39.35% for additional rate taxpayers (unchanged)
The dividend allowance remains at just £500. Everything above that is taxed.
So Which Pays Less Tax?
At lower profit levels – roughly under £30,000 to £40,000 – a sole trader often comes out ahead, or very close to level. The simplicity means lower accountancy costs, there’s no double layer of taxation, and the personal allowance covers the same ground either way.
As profits climb above £50,000, a limited company typically pulls ahead. The ability to pay a small salary (usually around the £12,570 personal allowance) and take the rest as dividends means the combined tax bill can be noticeably lower than paying income tax and NIC as a sole trader.
However, the gap has been narrowing. The dividend tax rates rose in April 2026, the dividend allowance has been slashed from £2,000 to £500 over three years, and employer’s NIC is now 15% even on modest director salaries above the £5,000 secondary threshold.
The days of straightforward, large tax savings from incorporating are less clear-cut than they were a few years ago.
The right answer for your specific numbers depends on your profit level, whether you need to extract all the profits or can leave some in the company, and your wider personal tax position. A worked comparison from your accountant is worth more than any rule of thumb.
Liability: What’s Actually at Risk
This is where the difference is most stark, and it’s often underweighted in the sole trader vs limited company debate.
As a sole trader, you have unlimited personal liability. If a client sues, if a supplier isn’t paid, if you take on debt the business can’t cover – your personal assets are exposed. Your house, your savings, everything.
Insurance helps mitigate some of this, but it doesn’t eliminate it entirely.
A limited company ring-fences that risk. The company’s debts are the company’s debts, not yours. The worst case for a shareholder (absent fraud or personal guarantees) is losing the money they invested.
For businesses that carry real financial risk – perhaps you’re holding stock, taking on contracts with penalties, or working in an area where professional liability claims are possible – this protection can be more valuable than any tax saving.
Admin and Running Costs
There’s no getting around the fact that a limited company involves more paperwork and higher costs.
As a sole trader, your compliance obligations are relatively light: keep business records, file a Self Assessment return once a year, and pay your tax. Many sole traders manage with basic bookkeeping software and an annual accountancy fee that might run from £300 to £800 depending on complexity.
A limited company needs more from you on the compliance side. At a minimum, you’ll be responsible for:
- Annual accounts prepared to statutory standards and filed at Companies House
- A corporation tax return filed with HMRC
- A confirmation statement submitted to Companies House each year
- Proper record-keeping of board decisions and share transactions
- Running payroll, even if you’re the only director
Most limited company directors pay somewhere between £800 and £2,500 a year in accountancy fees, more once you add VAT returns on top.
From April 2026, sole traders with qualifying income over £50,000 are also now subject to Making Tax Digital for Income Tax, which means digital record-keeping and quarterly reporting to HMRC.
This adds a compliance burden that didn’t previously exist for sole traders, and it’s worth factoring the additional software and accountancy costs into the comparison.
Credibility and Growth
This is harder to quantify, but it matters in practice.
Some clients – particularly larger companies and public sector organisations – prefer to work with limited companies. It can make procurement easier, signal permanence, and give the impression of a more established operation. If you’re pitching for contracts where this matters, sole trader status can work against you.
A limited company also makes it easier to bring in investors, issue shares to partners or key employees, and plan for an eventual sale. Ownership is structured and transferable in a way that sole trader status simply doesn’t allow.
On the other hand, if you’re a freelancer, consultant, or tradesperson working directly with individuals, sole trader status is perfectly normal, and clients rarely care about your legal structure.
When to Switch
Many people start as sole traders and incorporate later. That’s a sensible approach – it keeps things simple while you’re getting established and lets you move to a limited company once the tax and liability benefits become worthwhile.
Common triggers for switching include:
- Profits consistently exceeding £40,000–£50,000, where the tax savings start to become meaningful
- Taking on contracts or clients where limited liability protection is important
- Wanting to bring in a business partner, co-founder, or investor
- Planning to build a business with value that could eventually be sold
- Needing a more formal structure to satisfy clients or lenders
Switching is straightforward in principle – you set up a limited company and transfer your trade into it – but there can be tax consequences, particularly around transferring assets. It’s worth getting advice before making the move rather than after.
A Quick Comparison
Here’s a summary of the main differences at a glance:
- Liability: sole traders have unlimited personal liability; limited company shareholders are protected up to their investment
- Tax on profits: sole traders pay income tax and Class 4 NIC; limited companies pay corporation tax, then personal tax on salary and dividends
- Admin: sole traders file one Self Assessment return; limited companies file annual accounts, corporation tax returns, confirmation statements, and run payroll
- Privacy: sole trader finances are private; limited company accounts are publicly filed
- Growth and investment: sole traders can’t issue shares or easily bring in partners; limited companies offer a more flexible ownership structure
How Double Point Can Help
The sole trader vs limited company question isn’t one you need to answer in the abstract. It depends on your actual numbers – your profit level, your plans, your risk tolerance, and what you want from the business in the long run.
At Double Point, we help people work through this decision by considering their tax position, compliance costs, and practical implications.
If you’re already trading as a sole trader and wondering whether it’s time to incorporate, we can run the comparison for you and advise on whether the switch makes financial sense. And if you’re just starting out, we can help you choose the right structure from day one and set everything up properly.
Our tax planning service is built around exactly these kinds of decisions – making sure your business structure is working for you, not against you.
Book a free consultation with us today and let’s find the right structure for your business.