It’s a sinking feeling. You discover someone else is using your business name or logo. While your first instinct might be panic or anger, the most powerful reaction is a calm, strategic one.

Step 1: Gather evidence of the trade mark infringement

Before you do anything else—before you even think about sending an email—your absolute first job is to gather solid, undeniable proof of the trademark infringement.

Imagine you’re a web design company wondering how to stop someone copying your logo, and you suddenly find a marketing agency using a very similar logo on their website. Your priority is to capture this evidence before it can disappear. Take a full screenshot of the webpage, ensuring the website address (URL) is clearly visible in the image. Save copies of the specific logo they are using. This creates a clear record that helps prove your case.

To stop the infringer from simply deleting the page and denying it ever happened, you must date-stamp this evidence. A powerful way to do this is by submitting the infringing page’s URL to a free service like the Wayback Machine, which creates a permanent, historical record. This indisputable, dated proof is your most critical asset, forming the unshakable foundation for every step you take next.

While you are at it, check if your business insurance includes coverage for pursuing intellectual property infringement.

Step 2: Check Your Foundations: Registered Trademark vs. Unregistered Rights

Before you can decide what to do next, you need to know exactly what kind of protection your brand has. Think of it like owning a property: do you hold the official title deeds, or are you known as the owner simply because you’ve been there for a long time? The legal route you take when someone uses your name depends entirely on this distinction.

The strongest protection comes from a Registered Trademark. This is an official certificate from the UK’s Intellectual Property Office (IPO), the government body that manages these rights. It proves you have a monopoly over your brand for specific goods or services. You can easily check if your trademark (or the other party’s) is registered by using the free search tool on the IPO’s website. If you have that certificate, proving your ownership is much more straightforward.

But what if your brand isn’t registered? You might still be protected through a legal concept called Passing Off. This doesn’t rely on a certificate but instead protects the reputation (or ‘goodwill’) you’ve built with customers over time. To make a passing off complaint, you typically need to show three things: you have an established reputation, the other party’s actions are misleading customers into thinking they are connected to you, and this confusion is damaging your business.

Knowing whether your case is about a registered trademark infringement or passing off is the most critical first step. A registered mark gives you a clear starting line, while an unregistered one means you first have to prove your reputation exists. If you haven’t applied to register your trade mark, now is perhaps the time to do so.

Now that you know which path you are on, the next question becomes a practical one.

A screenshot of the UK IPO's online trademark search homepage, with the search bar highlighted.

Is It Actually Infringement? A Quick Reality Check on ‘Likelihood of Confusion’

Just because another business is using a similar name doesn’t automatically mean it’s illegal infringement. The law isn’t designed to stop all competition, but to protect customers from being misled. The central question it asks is whether there is a “likelihood of confusion” — a real risk that an average person might mistake their business for yours, or believe the two are officially connected.

To work this out for your situation, you generally need to be able to answer “yes” to two key questions:

  1. Is their name or logo identical or confusingly similar to your registered trademark?
  2. Are they using it for the same or a very similar type of business, where customers could easily get mixed up?

This second point is crucial. For example, if you run ‘Phoenix Coaching’ for business leaders, a new company called ‘Phoenix Plumbing’ in another city is unlikely to cause confusion. The industries are so different that no one would mix them up. However, if you own the trademark for ‘Gourmet Bites’ catering and a new ‘Gourmet Bitez’ food truck starts operating in your area, the risk is extremely high. If you can honestly answer ‘yes’ to both questions, you have a strong case for infringement, and it’s time to consider your next move.

Step 3: The Quickest Fix: How to Send a Non-Threatening ‘Heads-Up’ Email

Now that you’ve confirmed a likely infringement, resist the urge to send an angry message. Instead, try a simple, polite email. You’d be surprised how often the other party is unaware they are stepping on your brand’s toes. Many business name disputes start as genuine mistakes, not malicious theft. A calm ‘heads-up’ is often the quickest and cheapest path to a resolution, saving you time, stress, and money.

Your goal is to inform, not threaten. A good email states who you are, identifies your registered trademark (e.g., ‘the name Phoenix Coaching’), and shows them where they are using a similar mark. Frame it as a helpful notification. A phrase like, “I’m sure you weren’t aware, but this is our registered trademark,” is more effective than an aggressive demand.

Avoid legal threats or demands for compensation. The aim is to give them a chance to fix their mistake without feeling attacked. This approach is often how to stop someone from copying your logo without a costly legal battle. A simple, professional conversation can be all it takes. But if your friendly email is ignored or dismissed, it’s time to consider escalating the matter more formally.

If you make threats without properly thinking things through, you risk opening up yourself to a claim for unjustified threats. We will cover this in a separate article.

Step 4: Escalating Formally with a ‘Cease and Desist’ Letter

If your friendly email was ignored, it’s time to escalate. The next formal step is a ‘Cease and Desist’ letter. This is essentially a legal ‘stop’ sign in writing, telling the other party to immediately halt their infringing activity. Unlike a casual message, this letter carries significant legal weight and signals that you are prepared to defend your brand’s rights more seriously.

To be effective, the letter must be clear and specific. It should state which trademark you own, provide evidence of how they are using it, and demand that they stop by a reasonable deadline. You’re not just complaining; you’re creating a formal record that outlines the problem and the required solution. A correctly drafted cease and desist letter is crucial for it to be taken seriously and serve its purpose.

You can write this letter yourself, but having a trademark solicitor send it on their official letterhead adds undeniable authority and ensures that the wording meets the requirements of the Civil Procedure Rules and associated Practice Directions. While this involves a cost, it often gets a faster response as it shows the other party you have professional legal backing and are fully prepared to take the matter further. It communicates that you are not bluffing and can be a very wise investment.

This formal warning is often the last attempt to resolve the issue before considering court action. For owners of a registered trademark, the case is relatively straightforward. But what happens if your brand isn’t officially on the register? Your path is different, and you’ll need to rely on the rights you’ve built up through your reputation.

If You Don’t Have a Registered Mark: How to Prove ‘Passing Off’

What happens if you never registered your trademark? You aren’t out of options. If someone is using your business name in the UK, you can be protected by a legal concept called ‘passing off’. Instead of showing a certificate, you must prove you have established rights through your business activities and reputation.

To make a passing off claim, you must prove three essential ingredients. You must show: (1) Goodwill, meaning you have an established reputation; (2) Misrepresentation, where their actions mislead the public into thinking they are connected to you; and (3) Damage, proving this confusion has harmed your business or reputation.

Proving this requires solid evidence. For Goodwill, use invoices, marketing materials, and customer reviews. For Misrepresentation, save screenshots of confused customer comments on social media or emails mistaking them for you. To show Damage, you could point to a drop in sales or negative online reviews that were clearly meant for their business but posted on your page.

Building a case for passing off is more complex than simply pointing to a registration number. It requires carefully gathering evidence to construct a narrative. Because proving these elements is challenging, this is often the point where getting professional legal advice becomes essential to assess the strength of your evidence and guide your next steps.

Step 5: When It’s Time to Hire a Trademark Solicitor

While a DIY approach can be effective, there are clear signals that it’s time for professional help. If your letters are ignored, if the other party responds aggressively, or if they’ve hired their own legal team, you’ve reached the limit of what you can achieve alone. The same is true if you’re facing a much larger company or if the infringement is causing you significant financial loss. At this point, continuing without an expert can put you at a serious disadvantage and risk weakening your position.

Hiring a professional isn’t just about sending a scarier letter; it’s about strategy. A specialist solicitor will give you an honest assessment of your case’s strength and the full range of possible trademark infringement remedies, which can include financial compensation. They are experienced negotiators who can often secure a settlement without ever going to court, saving you the stress and high cost of trademark litigation UK. Their involvement signals that you are serious about protecting your brand, often prompting the other side to resolve the matter quickly.

Finding the right expert is crucial, as intellectual property is a specialist field. To find a trademark solicitor, you shouldn’t just turn to a general high-street firm. Instead, use official resources like The Law Society’s “Find a Solicitor” tool, filtering for “intellectual property,” or look for a registered professional on the website for CITMA (The Chartered Institute of Trade Mark Attorneys). With their guidance, you’ll be prepared to navigate the next stages of the process, should they become necessary.

The Final Stages: Understanding Mediation and the IPEC Court

Even with a solicitor on board, the primary goal remains to avoid a full-blown court case. This is where mediation often comes in. Think of it as a formal, structured negotiation where a neutral expert—the mediator—helps both parties explore a compromise. It is confidential, far less adversarial than court, and can be a highly effective way to find a practical solution that saves both sides the significant time and expense of further legal action.

If all attempts at negotiation and mediation fail, the final step is to ask a court to decide. For most brand owners, this means the Intellectual Property Enterprise Court (IPEC). This specialised court was created to provide a quicker and more affordable path to justice for IP disputes compared to the High Court. Its processes are streamlined, with caps on costs and the length of trials, making it more accessible for smaller businesses.

However, it is vital to be realistic. While the IPEC is more accessible, any court action represents a serious commitment of time, money, and emotional energy. The high cost of litigation is precisely why resolving issues at the earliest possible stage is always emphasized. Court is, and should always be, the absolute last resort after all other options have been exhausted.

Your Brand Is Your Asset: A Summary of Your Protection Plan

That initial feeling of panic when you see someone using your name can now be replaced with control. Instead of immediately asking if you can sue for trademark infringement in the UK, you have a measured process to handle potential trademark disputes in the UK effectively.

Your clear path forward is simple:

– Secure Your Evidence.

– Confirm Your Rights.

– Attempt Informal Resolution.

– Escalate Formally if Needed.

– Seek Professional Help When Triggers Are Met.

Think of this plan not as a battle strategy, but as a professional toolkit. You now have the confidence to act methodically, transforming a stressful situation into a manageable process to protect your brand—one of your most valuable assets.

Contact us if you need help dealing with infringement of your trade marks.