Complete guide to setting up an online business in the UK

emily gordon brown
Emily Gordon BrownLegal Assessment Specialist @ Lawhive
Updated on 28th January 2025

The internet has revolutionised how businesses operate, making it easier than ever to reach customers online. If you’re thinking about starting an online business in the UK, understanding the steps involved will help you launch successfully. This guide covers everything from planning your business to registering and staying compliant with UK regulations.

Six simple steps to starting an online business

Starting an online business in the UK might seem overwhelming, but breaking it down into manageable steps can make the process much easier. Here’s how you can get started:

1. Do market research and find your idea

Every successful business begins with a great idea. Take the time to explore what product or service you want to offer and whether there’s demand for it. Here’s how you can validate your idea:

  • Solve a problem: Think about a gap in the market or an issue you can fix.

  • Check out competitors: Look at their pricing, reviews, and what makes them stand out.

  • Talk to potential customers: Use surveys or online polls to find out what people really want.

  • Analyse trends: Tools like Google Trends or Statista can give you insights into what’s popular right now.

Once you’re confident in your idea, refine it by figuring out what makes it unique and how it stands out from the competition.

2. Choose your name and create a business plan

Picking a name for your business is exciting, but it’s also important to get it right. Make sure your name is:

  • Unique: Avoid anything too similar to existing businesses.

  • Available: Check the Companies House register, domain name availability, and social media handles.

  • Relevant: Choose something that reflects your product or service.

After deciding on a name, create a business plan. This doesn’t need to be long or complicated, but it should include:

  • An overview: What your business is and what it offers.

  • Your audience: Who your customers are and how you’ll reach them.

  • Finances: How much money you need to get started and what you expect to make.

💡Top tip: A solid business plan can also help if you’re applying for a loan or funding.

3. Register your online business

Once your idea and plan are ready, you’ll need to register your business. The process depends on your structure:

  • Sole trader: Let HMRC know you’re self-employed and register for self-assessment.

  • Limited company: Register your business with Companies House. You’ll need to provide details like a company name, address, and director information.

  • Partnership: If you’re starting a partnership, you’ll need to register with HMRC. For a limited partnership, you’ll also register with Companies House.

💡 Editor's insight: "Don’t forget VAT registration if your turnover exceeds £90,000 - or consider registering voluntarily if it benefits your business."

4. Set up a business bank account

Keeping business and personal finances separate is a good idea, even for sole traders. Setting up a dedicated business bank account offers several advantages:

  • Simplifies tax filing: Helps keep business expenses organised for self-assessment or corporation tax.

  • Professionalism: Customers and clients can make payments to a business account rather than a personal one.

  • Access to business tools: Many accounts offer features like invoice creation, international payments, or accounting software integration.

Compare different bank offerings to find an account with low fees and helpful features tailored to online businesses.

5. Create a website and an online brand

Your website will be the hub of your online business, so it’s worth investing time to make it great. Here’s what to focus on:

  • Domain name: Choose one that matches your business name as closely as possible.

  • Web hosting: Pick a reliable host to keep your site online 24/7.

  • E-commerce tools: Platforms like Shopify, WooCommerce, or Squarespace make it easy to set up an online store.

But it’s not just about the website - you also need a strong brand. Think about your logo, tone of voice, and how you’ll engage with customers online.

6. Launch and improve

Your initial launch is only the beginning. Once live, you should:

  • Track your performance: Tools like Google Analytics and social media insights will help you track performance.

  • Collect customer feedback: Use reviews, surveys, and direct communication to find out what’s working and what isn’t.

  • Experiment and adapt: Try new marketing strategies, tweak your products, or partner with others to grow.

Experimenting with different advertising strategies, partnerships, or product variations is key to staying competitive in a dynamic online market.

Recap: How to start a business in the UK

Starting an online business follows similar principles to any business setup. Here’s a quick recap:

  1. Identify your business idea through market research.

  2. Develop a strong brand, including a name and logo.

  3. Choose a suitable business structure.

  4. Register with the appropriate authorities.

  5. Set up financial systems, including a business bank account.

  6. Market your business effectively online.

Operating an online business in the UK requires compliance with several legal regulations. Complying with regulations protects your business, customers, and employees. Here are the most important regulations you should understand:

1. Business structure and registration

Choosing and registering the right business structure is a foundational legal step.

  • Sole traders must register with HMRC for self-assessment.

  • Limited companies register with Companies House and must adhere to the Companies Act 2006.

  • Partnerships register with HMRC and limited partnerships must also register with Companies House.

Compliance with structure-specific rules includes filing annual tax returns. Limited companies need to maintain proper records and submit confirmation statements.

2. VAT and tax compliance

Online businesses must understand VAT and general tax obligations. You need to:

  • Register for VAT if your annual turnover exceeds £90,000.

  • Charge the correct VAT rate (standard, reduced, or zero) based on your products or services.

  • Submit VAT returns and keep detailed records of sales and purchases.

  • Register for corporation tax if you’re a limited company or file a self-assessment tax return if you’re a sole trader.

Failure to comply with tax regulations can result in penalties and interest charges.

3. Consumer protection laws

When selling products or services online, you must adhere to the Consumer Rights Act 2015 and related e-commerce regulations, which ensure fair treatment of consumers. Key rules include:

  • Clear pricing and terms: Display prices, delivery costs, and payment terms upfront.

  • Cancellation and returns: Provide a 14-day "cooling-off" period for most online purchases, allowing customers to return goods for a refund.

  • Product descriptions: Ensure that product descriptions are accurate and not misleading.

4. Data protection and GDPR

Any online business handling personal data must comply with the UK General Data Protection Regulation (GDPR). This includes:

  • Data collection transparency: Inform customers about what data you collect and why.

  • User consent: Obtain explicit consent before collecting or processing sensitive personal data.

  • Secure storage: Protect customer data with robust security measures to prevent breaches.

  • Data access requests: Respond to customer requests to access, correct, or delete their data within one month.

Non-compliance with GDPR can lead to substantial fines.

5. Employment laws

If your online business hires employees or contractors, you must follow employment laws, including:

  • Contracts: Provide employees with written employment contracts detailing roles, pay, and conditions.

  • National Minimum Wage: Pay at least the minimum wage according to the employee’s age and classification.

  • Health and safety: Even for remote roles, employers must ensure a safe working environment.

You must also handle employee income tax and National Insurance contributions through PAYE (Pay As You Earn).

6. Advertising and marketing regulations

Your online marketing efforts must comply with UK advertising standards governed by the Advertising Standards Authority (ASA). This includes:

  • Truthful claims: Avoid making false or misleading statements about your products or services.

  • Pricing clarity: Clearly display total prices, including taxes and fees.

  • Fair competition: Avoid defamatory remarks about competitors.

When using email marketing, ensure compliance with the Privacy and Electronic Communications Regulations (PECR) by obtaining user consent before sending promotional messages.

7. Intellectual property protection

Online businesses often create logos, designs, or content that should be protected from misuse. Registering trademarks, copyrights, or patents helps safeguard intellectual property. Examples include:

  • Trademarks for brand names or logos.

  • Copyright for written content, images, and software.

  • Patents for inventions or unique processes.

Register your intellectual property with the UK Intellectual Property Office (IPO) to secure exclusive rights.

FAQs

Do you need to register an online business in the UK?

Yes, all businesses operating in the UK must register with HMRC or Companies House, depending on their structure. Sole traders must register for self-assessment, while limited companies need to incorporate with Companies House.

What information do you need to register a business?

When registering, you’ll need:

Can you legally run a business from home in the UK?

Yes, but you may need to check local council regulations or your mortgage/rental agreement. You must also ensure compliance with health and safety laws if customers visit your home.

Final thoughts

Setting up an online business in the UK is an exciting opportunity, but it requires careful planning and adherence to legal requirements. By following these steps and staying informed about regulations, you can create a strong foundation for success. Your online venture could be the start of something incredible - take the first step today!

Looking for legal business help? Get in touch for a free quote and learn how one of our small business lawyers can help.

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