A limited company is a distinct legal entity separate from its owners, offering limited liability protection where personal assets stay safe if the business struggles.
This guide explains in detail what is a limited company, how a limited company UK works, and what your legal responsibilities are.
We’ll also cover the costs, as well as the advantages and disadvantages.
Let’s start with the basics!
What Is a Limited Company?
A limited company is a type of business structure in the UK that exists as a separate legal entity from its owners. This means the company can own assets, enter into contracts, and incur debts in its own name.
That distinction really matters.
Because the business is separate, your personal assets are generally protected. This means if the business runs into financial trouble, your personal assets like your house or savings are generally safe.
So if you want to know what is a limited company in business terms, just remember that it is a structure that creates a separate legal entity for the business, with you sitting alongside it as a director, shareholder, or both.
Is a Limited Company a Private Company?
Yes, a limited company is usually a private company. In the UK, the term “limited company” most commonly refers to a Private Limited Company (Ltd). However, a limited company can also be a Public Limited Company (PLC).
“Limited” simply means the owners have limited liability protection. Because of this, a limited company can actually fall into one of two categories in the UK:
- Private Limited Company (Ltd): The shares of the business are held privately by the founders, directors, or chosen investors. These shares cannot be bought or sold by the general public on a stock exchange. When people ask “what is a private limited company,” this is actually what they mean. And it is the exact setup most people actually want when they search for what is a limited company to start a business.
- Public Limited Company (PLC): The shares are traded on the stock market to anyone. Their shares can be offered to the public through a recognised stock exchange. PLCs must follow much stricter financial rules. Also, it requires a minimum of £50,000 in share capital to start. So it’s rarely the right choice for a new business.
For most SMEs, a private limited company is the most common structure. It gives you all the benefits of financial protection and tax efficiency. Yes, without the complex regulations of going public.
What Are the Types of Limited Company in the UK?
Now that you know what is a limited company, it is also important to understand its main types.
| Type | Who it suits | Key feature |
| Private company limited by shares | Most small and medium businesses | Owned by shareholders, profits can be distributed as dividends |
| Private company limited by guarantee | Charities, clubs, community groups | No shareholders, backed by “guarantors” instead, profits usually reinvested |
| Public limited company (PLC) | Large businesses wanting to raise public capital | Shares traded publicly, minimum £50,000 share capital |
| Community Interest Company (CIC) | Social enterprises | Profits must mainly benefit the community |
What Are the Advantages and Disadvantages of a Limited Company?
Every business structure has pros and cons. Similarly, there are distinct advantages and disadvantages of limited company setups too. After knowing what is a limited company, you should weigh up the advantages and disadvantages of limited company carefully.
| Feature | Advantages | Disadvantages |
| Asset Safety | Your personal assets are legally protected from business debts. | You cannot withdraw cash freely; money must be processed formally. |
| Tax Efficiency | You may choose a combination of salary and dividends depending on your circumstances. | You will likely need to pay an accountant to manage corporate taxes. |
| Credibility | An “Ltd” status looks more professional to large UK clients. | Corporate accounts and director details are public on Companies House. |
| Funding | It is much easier to secure bank loans or sell business shares. | There is a heavy administrative burden with strict filing deadlines. |
Read More: Private Limited Company Advantages and Disadvantages (UK 2026)
How to Set Up a Limited Company (2026/27 Process)
If you have decided a limited company is the right fit, the next step is registering it.
Many people think the process is long or complicated. That is not the case. In fact, it is pretty straightforward if you already have a solid grasp of what is a limited company and how it works.
Well, here is how to set up a limited company:
- Choose a unique company name (and check its availability instantly on the GOV.UK Company Name Availability Checker).
- Verify your identity. Under UK law, all directors and People with Significant Control (PSCs) must complete a mandatory identity check through the GOV.UK Identity Verification Portal.
- Decide who the directors will be (the individuals legally responsible for running the company).
- Choose your shareholders (the owners of the business. Remember, you can be both the sole director and sole shareholder).
- Select a registered office address (the official, public address where government mail will be sent).
- Decide on your SIC code. Select your business activity from the official Companies House Standard Industrial Classification (SIC) List.
- Prepare your Memorandum and Articles of Association (the constitutional rules governing your company, which are automatically generated if you register online).
- Register the company with Companies House. Submit your digital application through the GOV.UK Limited Company Formation Portal.
- Register for Corporation Tax with HMRC. This must be completed within 3 months of starting business activities, though it can usually be done simultaneously during your initial registration on GOV.UK.
- Open a business bank account to keep your personal and business finances legally separate.
- Set up a bookkeeping system from day one to stay on top of your financial records.
Some businesses also need to register for VAT or PAYE (if hiring staff). This depends on their circumstances.
And although you can complete the registration yourself, many business owners choose an accountant to handle everything. This is because it helps them avoid small mistakes that can become more difficult to correct later. Also, a good accountant knows exactly what is a limited company requirement and what isn’t.
How Much Does It Cost to Open a Limited Company?
When exploring what is a limited company and budgeting for your launch, know that incorporation is highly affordable. However, your total setup expenses will depend on the registration route you take and whether you require any administrative add-ons.
Here is a breakdown of the standard startup costs for a private limited company that you should expect:
1. The Core Registration Fee (Mandatory)
This is the mandatory one-off filing fee paid to Companies House to legally form your business:
- Online Registration:£100. This is the easiest route. You fill out the application digitally on GOV.UK, and your business is usually approved within 24 hours.
- Postal Registration:£124. If you prefer to print out and mail a paper IN01 form, it costs a little bit more and takes around 8 to 10 working days to process.
2. Using a Formation Agent or Accountant (Optional)
If you do not want to handle the government paperwork yourself, you can use the services of a professional:
- Third-Party Formation Agents:£10 to £50+. Online formation platforms bundle the standard Companies House registration fee with extra startup perks.
- An Accountant:£100 to £300+. Many small business owners prefer having a professional accountant. Using an accountant usually costs a bit more upfront because you’re also getting guidance on the right structure, registered office address, and getting your tax registrations sorted properly from day one.
3. Additional Post-Setup Costs to Keep in Mind
While the setup itself is cheap, you should budget for these common early expenses:
- Privacy / Registered Office Address:£20 to £60 per year. If you do not want your personal home address visible on the public registry, you can rent a virtual business address.
- Annual Confirmation Statement:£50 per year. Every limited company must submit an annual registry update to Companies House.
What Are the Responsibilities of a Limited Company?
Just knowing what is a limited company is not enough. Once you set up a limited company, the responsibilities of a limited company fall directly onto the shoulders of its directors.
As a director, you’re legally required to:
- File a confirmation statement at least once a year
- Submit annual accounts to Companies House
- File a Company Tax Return with HMRC and pay Corporation Tax
- Keep accurate company records, including registers of directors and PSCs
- Tell Companies House promptly about changes, like a new director or registered address
- Complete identity verification for all directors and PSCs, and keep this updated as required
Missing filing deadlines can lead to penalties, and repeated failures may even result in the company being struck off the Companies House register.
Who is Responsible for the Appointment of Statutory Auditor of a Limited Company?
In a limited company, the responsibility for appointing a statutory auditor is shared between the shareholders (members) and the directors, depending on the stage of the company.
Shareholders hold the ultimate power to appoint or reappoint auditors. Yes, usually by passing an ordinary resolution. Directors are generally responsible for appointing the first auditor of the company or filling any casual vacancies that arise during the year.
If neither the directors nor the shareholders appoint an auditor when required, the appropriate government authority (such as the Department for Business and Trade in the UK) has the statutory power to step in and make the appointment to ensure compliance. Most people looking into what is a limited company setup for a small business will actually be exempt from these audits anyway, but it is still useful to know the rules.
The Bottom Line
Understanding what is a limited company is the first step towards choosing the right structure for your business.
While a limited company comes with more responsibilities than operating as a sole trader, it also offers benefits such as limited liability, greater credibility and opportunities for future growth.
The right choice depends on where your business is today and where you want it to be in a few years.
If you’re still weighing up your options, we can help you choose the most suitable structure.
How Accotax Can Help
At Accotax, we can help you set up your limited company correctly and quickly.
Beyond formation, we take care of your annual accounts, Corporation Tax return, and ongoing compliance, so you can actually get on with running the business instead of chasing deadlines.
Disclaimer: All the information provided in this article on “What Is A Limited Company? A Simple UK Guide [2026/27]“, including all the texts and graphics, is general in nature. It does not intend to disregard any of the professional advice.
