How to Check if a Business Name Is Free to Use
Choosing the right name for your business is one of the most significant decisions you’ll make as a founder. It shapes how customers find you, how you appear legally, and whether you can protect what you build. Before you commit to anything on letterheads, websites, or signage, you need to know whether that name is genuinely available.
The good news is that checking whether a business name is free to use in the UK is a straightforward process, and much of it costs nothing. The key is knowing exactly where to look and understanding the different layers of protection that exist around trading names and registered company names.
How to Check if a Name Is Being Used for a Business in the UK
The starting point for any name search in the UK is Companies House, the official government register of all limited companies operating in England, Wales, Scotland, and Northern Ireland. You can use their free search tool to look up any existing registered company name in seconds. If an identical name already exists on the register, Companies House will not allow you to register the same one for a limited company.
It’s worth remembering, though, that passing the Companies House check doesn’t give you the full picture. A business might be trading under a name without being a registered limited company, particularly if it operates as a sole trader or partnership. Searching Google, social media platforms, and domain registrars alongside the official register will give you a much more complete view of whether a name is already in use commercially.
| Search Method | Cost | What It Checks |
|---|---|---|
| Companies House name search | Free | Registered UK limited company names |
| Intellectual Property Office (IPO) trade mark search | Free | Registered trade marks across classes |
| Google / general web search | Free | General commercial usage and reputation |
| Domain registrar search | Free | Web domain availability |
| HMRC self-assessment records | Not publicly searchable | Sole trader registrations |
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Can You Search for UK Companies for Free?
Yes, searching the Companies House register is entirely free, and it is one of the most useful tools available to anyone starting or researching a business in the UK. The Companies House WebCHeck and Find & Update service lets you search for any registered company by name, company number, or officer name without creating an account or paying a fee.
Beyond Companies House, the Intellectual Property Office (IPO) offers a free trade mark search tool at GOV.UK, which lets you check whether your proposed name has already been registered as a trade mark in specific categories. This is an important extra step, because a name can be clear on the Companies House register but still infringe on a registered trade mark, which is a separate and legally significant form of protection.
Is It Free to Have a Business Name in the UK?
If you are operating as a sole trader or a partnership, there is no registration fee to trade under a business name in the UK. You simply notify HMRC that you are self-employed and can trade under a name of your choosing, provided it doesn’t infringe on existing rights. There are no Companies House fees involved at this stage, and you are not required to register the name formally anywhere.
The situation changes when you want to form a limited company. Registering a limited company through Companies House currently costs £50 online (or £71 by post as of 2024), and this registration incorporates your chosen company name as part of the legal entity. Registering a trade mark through the IPO to protect a name or brand is a separate process with its own fee structure, starting from £170 for one class of goods or services. You can review current official fees at GOV.UK.
| Action | Estimated Cost (2024) | Where to Complete |
|---|---|---|
| Sole trader name (HMRC registration) | Free | HMRC online or by post |
| Limited company registration (online) | £50 | Companies House |
| Limited company registration (by post) | £71 | Companies House |
| Trade mark registration (1 class) | From £170 | Intellectual Property Office |
| Trade mark registration (additional classes) | £50 per class | Intellectual Property Office |
Can You Register a Business Name in the UK and Not Use It?
This is a question that comes up regularly among entrepreneurs who want to protect an idea before they are ready to launch. You can register a limited company name with Companies House without immediately trading under it, which effectively reserves the name on the register. There is no legal obligation to begin trading by a specific deadline, and your company can remain dormant for as long as you need, provided you continue to file annual confirmation statements and accounts with Companies House.
The same logic applies to trade marks: you can register a trade mark to protect a name or logo before actively using it commercially. However, trade mark law in the UK and across the EU does include provisions that allow a registration to be challenged if a mark has not been genuinely used within five years of registration. So while reserving a name is perfectly legal and sensible, completely neglecting to use a trade mark long-term does carry some risk of it being invalidated.
Everything You Need to Know About Checking if a Business Name Is Free to Use
Getting your business name right from the outset matters far more than many first-time founders realise. A name that seems perfect can quickly become a serious problem if it turns out to infringe on someone else’s trade mark or is already associated with a competitor. Taking an hour to run thorough checks across Companies House, the IPO trade mark database, and a standard web search could save you from costly rebranding or legal disputes further down the line.
It’s also worth thinking about your name from a practical standpoint before you commit. Is the matching domain name available? Does the name work on social media platforms? Are there similar names in your industry that could cause customer confusion? These considerations sit alongside the legal checks and are just as important when building a brand that is genuinely distinct and memorable.
Whether you’re registering a side project or launching a full limited company, the tools to check your name are free, accessible, and take very little time to use. The UK government has made the process of starting a business more transparent than ever before, with Companies House and the IPO both offering straightforward public search tools. Do the checks properly, document what you found and when, and you’ll be starting your business on solid, legally aware ground.
- Always search Companies House, the IPO trade mark register, and the open web before settling on a business name, as each layer of the check reveals different potential conflicts.
- Operating as a sole trader or partnership carries no name registration fee, while forming a limited company costs from £50 online via Companies House.
- A company or trade mark name can be reserved without immediately trading under it, but trade marks must be used within five years to avoid a challenge to their validity.
How to Check if a Business Name Is Free to Use: Frequently Asked Questions
The first step is to search the Companies House register at find-and-update.company-information.service.gov.uk, which is free and shows all currently registered limited company names in the UK. This tells you whether an identical name is already taken at company registration level.
Yes, the Companies House name search is completely free and requires no account or subscription to use. The IPO trade mark search at GOV.UK is also free and gives you a second important layer of checking.
Companies House is the UK's official registrar of companies, responsible for incorporating and dissolving limited companies and maintaining public records. Any name already registered there as a limited company cannot be duplicated by a new registration.
No, because Companies House only checks for identical or very similar registered company names; it does not search trade marks, sole trader names, or existing unregistered brands. You also need to check the IPO trade mark register and conduct a general web search.
You can use the free trade mark search tool on the GOV.UK Intellectual Property Office pages, where you can search by name, class of goods or services, and owner. It's advisable to search broadly, including similar spellings or phonetic variations.
No, registering as a sole trader with HMRC and choosing a trading name is entirely free. You do not need to register your trading name anywhere formally, though you must still follow naming rules such as not implying government affiliation.
Online registration through Companies House currently costs £50, while postal registration costs £71. These fees cover the incorporation of the company, with the chosen name secured as part of that legal structure.
Two limited companies cannot share an identical name on the Companies House register, but a limited company and a sole trader can technically trade under similar names. This can still lead to legal disputes if customers are confused or if a trade mark is involved.
Yes, a dormant company can legally hold a registered name without trading, provided it continues to submit annual confirmation statements and accounts to Companies House. This is a common way to reserve a name while a business idea is still being developed.
The trade mark owner can send a cease and desist letter, seek damages through civil court, and require you to rebrand entirely. It's one of the most avoidable and costly mistakes a new business can make, which is why checking the IPO register before launching is essential.
Sole traders and partnerships are not legally required to register a trading name anywhere, though they must register their self-employment with HMRC. Limited companies, by contrast, must register with Companies House, which is where their name becomes part of the formal public record.
Yes, if you haven't registered a trade mark and another business registers the same or a very similar name, they may gain legal priority. Registering a trade mark through the IPO provides the strongest form of name protection in the UK.
Online applications are typically processed within 24 hours, often faster. Postal applications take considerably longer, sometimes several weeks, which is why most people opt for the online route when speed matters.
Yes, Companies House and general business naming rules prohibit names that are offensive, misleading, or imply government or royal connections without permission. The GOV.UK guidance on naming a limited company sets out all the current restrictions clearly.