19 Online side hustles UK to boost your income

Online side hustles give you the freedom to work from home, earn extra money, and explore ideas that fit your lifestyle. Whether you’re a creative looking to sell designs, a skilled professional offering freelance services, or an aspiring entrepreneur, there’s an opportunity in the UK for every skillset.

From launching a print-on-demand brand to becoming a virtual assistant, we’ve rounded up the most popular and profitable side hustle ideas to get you started.

What is a side hustle?

Source: Pexels

 A side hustle is any flexible, internet-based way to earn extra income alongside your full-time job. It could mean selling custom products, offering freelance services, or creating content—all from your laptop or mobile phone.​

These gigs work through digital platforms like Fiverr, Upwork, Etsy, or your own eCommerce website to sell products or services. The best part is the flexibility – you decide when and where to work and how fast to grow your business.

Many people in the UK start a side hustle to build a financial safety net or save for a big goal. Others use it as a way to test a business idea before leaving their day job behind.

Whatever your reason, learning how to start one of the many online side hustles available is one of the smartest ways to take control of your career and finances.

Low-cost online side hustles from home

Looking for the best side hustle ideas with low upfront costs? These options are perfect for earning extra money from home without a huge initial investment.​

1. Sell print-on-demand products​

Print on Demand (POD) is one of the most exciting and creative side hustles UK residents can start today.

You can sell custom products like t-shirts, hoodies, or posters without ever buying or storing any stock yourself. When a customer places an order, a partner like Printful automatically prints, packs, and ships the item directly to them. You just focus on creating great designs and marketing your online store.

The best part for UK sellers? With our fulfilment centres right here in the UK, your orders reach your British customers in just a few days. That means faster shipping with carriers like Royal Mail and no unexpected cross-border customs fees for your buyers.

Many people start with POD to earn extra money online, but it can become a full-time business.​

Best for: Creative people who want to start an online brand with low risk and minimal upfront cost.​

Requirements:

• A POD partner like Printful that connects to eCommerce platforms like Shopify or marketplaces like Etsy.

• Design ideas that appeal to your target audience or niche.
  
  

Tips:

• Start small with popular items like custom clothing, then expand your product catalogue as you learn what sells best.

• Use our free Design Maker to make unique designs and see them on high-quality mockups.

2. Sell digital products

​With digital products, you create something once and can sell it endlessly, building a fantastic source of passive income. From eBooks and printable planners to social media templates and spreadsheets, these items help people learn new skills, save time, or get organised.

Think about a useful spreadsheet you created for budgeting or a set of graphic templates you designed for your own social media. These are perfect examples of digital products.

Best for: Problem-solvers and creatives who can turn their knowledge into useful digital tools.

Requirements:

• A digital product idea that solves a common problem.

• Online tools to create your products, like Canva or Google Workspace.

• A sales channel, like Etsy or your own website.
  
  

Tips:

• Start with a product that’s made your own life easier.

• Use social media to showcase your product's benefits and connect with potential customers.
  
  

3. Start a dropshipping business

​Dropshipping is similar to Print on Demand in that you don’t need to handle stock or shipping yourself. The main difference is that you sell existing, ready-made goods that suppliers have already produced, with no custom design element.

Because it’s so simple to set up, many see dropshipping as one of the best starter side hustles. However, since you’re selling products that other retailers also offer, building a unique brand and standing out from the competition can be more challenging.​

Best for: Entrepreneurs who want to launch an online store quickly without managing inventory.​

Requirements:

• A trusted dropshipping supplier.

• An eCommerce platform or marketplace account.
  
  

Tips:

• Find a niche with trending or hard-to-find products that your target audience is actively looking for.

• Focus on building strong digital marketing skills to attract customers and drive sales.
  
  

4. Sell stock photos

Source: Pexels

Selling stock photos is a flexible side hustle where you upload your images to platforms like Adobe Stock or Wirestock. You earn money every time someone downloads and buys your pictures.

This isn’t just for professional photographers. Many brands are now looking for authentic, real-life photos to use on their social media. Even simple shots taken on your smartphone – like your morning coffee or a tidy home office – can sell if they capture the right aesthetic.​

Best for: Casual or professional photographers looking for a low-effort way to earn extra income from their photos.​

Requirements:

• A camera or a smartphone with a good camera.

• Desktop or mobile apps for basic photo editing.

• Accounts on one or more stock photo platforms.
  
  

Tips:

• Focus on popular and trending themes within photography.

• Use descriptive keywords and tags to make your images easy for buyers to find.

AI and tech-driven side hustle opportunities

​If you’re comfortable with technology, these side hustle ideas can open up new ways to earn money online.

5. Create and sell AI prompts

​Selling ready-made prompts for AI tools like ChatGPT, Claude, or Midjourney has become a popular way to earn extra income. You help people save time and achieve better results from AI, and they pay for your expertise in crafting the perfect prompt.​

Best for: Skilled AI users who can turn their knowledge into a profitable product.

Requirements:

• Strong knowledge of and experience with popular AI tools.

• An eCommerce platform or marketplace to sell your prompts.
  
  

Tips:

• Spend time testing your prompts to ensure they deliver consistent, high-quality results.

• Bundle prompts into packs for specific niches – like marketing, web design, or content creation – to offer more value.
  
  

6. Flip and sell websites

​Website flipping is like digital property development: you buy or build a website, improve its design, content, and traffic, and then sell it for a profit.

​Many flippers prefer to buy an existing website with steady traffic so they don’t have to start from scratch. Entrepreneurs often sell these sites when they want to cash in on the value they’ve built or no longer have time to maintain them.

​Best for: People with skills in web development, SEO, and digital marketing.

​Requirements:

• Access to marketplaces like Flippa or Empire Flippers.

• The skills and time needed to improve a website’s performance and appearance.
  
  

​Tips:

• Target niches with high profit potential, such as personal finance, travel, or health.

• Track and showcase traffic growth and revenue to make your site more attractive to potential buyers.
  
  

Skill-based side hustles and freelance jobs

​Many people in the UK start freelancing alongside their day job, gradually building a client base until it becomes their full-time career.​

7. Offer digital marketing services

Source: Fiverr

Every modern business needs a strong online presence, making digital marketing services one of the fastest ways to earn money. This field covers everything from social media management and email marketing to search engine optimisation (SEO). Many small local businesses lack the time or resources to handle these tasks and are happy to hire skilled freelancers.​

Best for: Marketers who can create effective campaigns and demonstrate clear results.

Requirements:

• Proven knowledge of at least one digital marketing channel.

• A presence on platforms like Upwork, Fiverr, or LinkedIn to find clients.
  
  

Tips:

• Start by offering one specialised service, like social media management for local cafes, to establish yourself as an expert.

• Collect client testimonials and case studies with measurable results to build trust and win bigger projects.
  
  

8. Become a virtual assistant (VA)

​A virtual assistant (VA) helps entrepreneurs and small businesses with tasks they don’t have time for. The work can be incredibly varied – some VAs focus on administrative tasks like managing emails and calendars, while others specialise in marketing tasks such as content creation or social media scheduling. The demand for VAs is very high in the UK.

Best for: Highly organised individuals who are quick learners and have excellent time management skills.

Requirements:

• Access to VA job boards or freelance platforms.

• A willingness to adapt to the different needs and systems of each client.
  
  

Tips:

• Research which VA skills are currently in high demand and focus on developing those.

• Establish clear communication habits with each client to build trust and encourage long-term partnerships.
  
  

9. Become an online tutor

Source: Pexels

 Help students from primary school to university level with subjects like maths, science, or English over video calls. This side hustle idea has become incredibly popular as parents seek flexible, personalised learning support for their children outside of school hours.

Best for: Teachers, university students, or subject matter experts.​

Requirements:

• Deep knowledge of a specific academic subject.

• Access to tutoring platforms like MyTutor or Preply.
  
  

Tips:

• Consider getting a tutoring qualification to give parents and students more confidence in hiring you.

• Offer a free 15-minute trial session to attract new students and showcase your teaching style.
  
  

10. Create and sell online courses

Source: Udemy

Share your expertise with a global audience by creating online courses. These can be a series of recorded video lessons, slide decks, or downloadable guides. While creating a course takes significant effort upfront, it can generate passive income for years once it’s live, as you don’t have to teach every session yourself.

Best for: Professionals, experts, or hobbyists with a skill that others want to learn.

Requirements:

• A topic you know inside and out.

• A platform like Teachable or Udemy to host and sell your course.
  
  

Tips:

• Research common questions in your field to help structure your course content around what people really want to know.

• Include practical exercises or worksheets to help students apply what they’ve learned.
  
  

11. Start an online coaching business

​Unlike creating an online course, coaching involves working with clients one-on-one in a live setting. You can provide personalised guidance in areas like fitness, career development, or business strategy, helping people achieve their goals. Because coaching is so tailored, it often lets you charge higher rates than other online side hustles.

Best for: Experts with a strong professional reputation and great communication skills.

Requirements:

• A professional website and social media presence to build your brand.

• A platform for hosting sessions, like Zoom or Google Meet.
  
  

Tips:

• Offer free "discovery calls" to connect with potential clients and see if you’re a good fit before they commit.

• Regularly share valuable insights on social media to build credibility and attract your ideal clients.
  
  

12. Become a voiceover artist

Source: Pexels

If you have a clear and engaging voice, you could earn money doing voiceover work for commercials, audiobooks, podcasts, or animations. With the explosion of digital content, businesses and creators are constantly looking for unique voices to bring their projects to life.

Best for: People with a clear speaking voice and an interest in performance and storytelling.​

Requirements:

• High-quality audio recording equipment (a USB microphone is a great start) and editing software.

• A profile on platforms like Voices.com or Backstage.
  
  

Tips:

• Create a portfolio by recording different sample scripts and showcasing it on your profile.

• Practise your sight-reading skills so you can quickly and naturally interpret scripts.

Creator economy side hustles

​If you enjoy creating content and building an online community, these side hustle ideas are for you.

13. Become a social media influencer

​Think you need millions of followers to make money as an influencer? Think again. If you love creating content and connecting with people online, you can build a profitable side hustle. Brands are increasingly looking to partner with "micro-influencers" who have smaller, highly engaged audiences in specific niches.

Best for: People who love creating content and starting conversations online.

Requirements:

• Active and consistent social media profiles.

• A clear niche and personality that connects with an audience.
  
  

Tips:

• Authenticity is key. Genuine, relatable posts often perform much better than overly polished content.

• Collaborate with other creators in your niche to reach new audiences and grow your following.
  
  

14. Launch a YouTube channel

Source: Pexels

Starting a YouTube channel is one of the most popular ways to turn your passion or personality into income. Through the YouTube Partner Programme, you can earn ad revenue once you meet the eligibility requirements. Beyond that, many UK YouTubers also make money through brand sponsorships, affiliate links, and selling their own merchandise.

​Best for: Creators who enjoy teaching, entertaining, or sharing ideas through video.

​Requirements:

• A YouTube channel.

• A basic filming setup (a smartphone, a microphone, and good lighting will do).

• Video editing software.
  
  

Tips:

• Find trending topics in your niche and add your own unique spin to them.

• Engage with your audience in the comments to build a loyal community.
  
  

15. Become an affiliate marketer

​Affiliate marketing is like getting paid to recommend your favourite products. You share special links to products or services, and when someone makes a purchase through your link, you earn a commission. Many successful affiliates build blogs or social media accounts focused on specific niches, becoming trusted sources for reviews and recommendations.

Best for: Creators who genuinely enjoy sharing and reviewing products.​

Requirements:

• A platform for your content, such as a blog, YouTube channel, or Instagram account.

• Membership in affiliate programmes like Amazon Associates, Awin, or the Printful Affiliate Programme.
  ​

Tips:

• Only promote products you actually use and believe in. Your audience will trust your recommendations more if they’re genuine.

• Create content that compares similar products, as many people search for "A vs B" reviews before buying.
  
  

16. Start a podcast

​Podcasting is a powerful way to build an audience and make money through advertisements, sponsorships, or direct listener support via platforms like Patreon. It’s a great medium for deep-dive conversations and interviews, letting you establish yourself as an expert in your field.

Best for: Natural conversationalists who enjoy sharing ideas and telling stories through audio.

Requirements:

• High-quality audio recording equipment and editing software.

• A hosting platform like Buzzsprout or Anchor to distribute your episodes.
  ​

Tips:

• Create branded podcast merchandise to give your listeners another way to support you.

• Invite guests onto your show to bring in fresh perspectives and tap into their audience.
  
  

No-experience online side hustles

​These side hustles are perfect for beginners. They let you pick up short tasks, work whenever you like, and require no special skills to get started.​

17. Test websites and apps

​Companies will pay you to test their websites and mobile apps and give honest feedback on how easy they are to use. It’s a simple way to make money online while helping brands improve their digital products.

Best for: People who are detail-oriented and enjoy trying out new technology.

Requirements:

• A computer or smartphone.

• An account on platforms like UserTesting or Intellizoom.
  
  

Tips:

• Provide clear, detailed, and constructive feedback. Companies are more likely to invite you to future tests if your input is valuable.

• Keep your notifications turned on so you can grab new testing opportunities as soon as they appear.
  
  

18. Offer transcription services

​If you’re a fast and accurate typist with a good ear, transcription could be a great side hustle for you. You’ll listen to audio or video recordings and type out what’s being said. It’s a flexible job you can do from home on your own schedule.

Best for: Detail-oriented people who can focus for long periods of time.

Requirements:

• A computer, a good pair of headphones, and transcription software.

• Excellent typing and grammar skills.

• A profile on a freelance platform like TranscribeMe or Rev.
  
  

Tips:

• Learn keyboard shortcuts for your transcription software to speed up your workflow.

• Check if your client allows the use of AI tools to generate a first draft, which you can then edit and polish for accuracy.
  
  

19. Take online surveys

​Earn small amounts of cash or gift vouchers by taking paid surveys for market research companies. Brands use this feedback to understand consumer opinions and improve their products and services. While it won’t make you rich, it’s an easy way to earn a little extra in your spare time.

​Best for: People who enjoy sharing their opinions.

Requirements:

• A computer or smartphone.

• Accounts on trusted survey sites like Prolific, Swagbucks, or UserInterviews.
  
  

Tips:

• Set up a separate email address for survey sites to keep your main inbox clear.

• Fill out your profile on each site in detail, as this helps them match you with relevant surveys.
  ​

Understanding UK tax on your side hustle

​Before you start earning, it's important to understand your tax obligations in the UK.

​In the UK, you can earn up to £1,000 in gross income from your side hustle in a single tax year (6 April to 5 April) without having to tell HMRC or pay any tax. This is thanks to the trading allowance.

​If you earn more than £1,000, you must register as self-employed (usually as a sole trader) with HMRC and file a Self-Assessment tax return each year. You’ll pay tax on your profit (your total income minus any allowable business expenses), not your total revenue. It’s a good idea to set aside around 20–30% of your profits for your tax bill.

We recommend contacting a professional tax consultant in your area for more personalized advice. 

How to pick the right side hustle

​To find a side hustle that you’ll actually stick with, think about these key factors before you jump in.​

Time required vs flexibility

Some side hustles require you to work to set deadlines, while others let you work at your own pace. Be realistic about how much time you can commit. If you only have evenings or weekends free, look for flexible options that don’t depend on real-time client communication.

Required skills and learning curve

Think about the skills you already have and what you’re willing to learn. Simple tasks like online surveys require no prior experience. But freelance services like digital marketing or web development have a steeper learning curve. Starting with your existing skills will help you see progress faster.​

Startup cost and tools needed

Most online side hustles have some upfront costs. A YouTuber might need a microphone, while a POD seller might pay for a subscription to an eCommerce platform. List what you need to get started versus what you can upgrade later. Many free tools, such as Canva and Google Workspace, can help you get started on a tight budget.

Income potential vs effort

A freelance job might start paying you within a month, while building an online store could take several months to generate steady sales. Decide on your priority – do you need extra money quickly, or are you happy to invest time in something that could generate more passive income later on?​

Common pitfalls to avoid when side hustling

​Starting a side hustle is exciting, but keeping it going takes a smart strategy. Here’s what to watch out for.

Overcommitment

​Trying to balance a side hustle with your main job and personal life can lead to burnout. Start small with one client, one product, or one platform. Once you have a steady process, you can scale up without losing your motivation.

Underestimating the investment​

Even online side hustles require an investment of time and sometimes money. Expect a learning curve in the beginning. Track how long tasks take and what you spend on tools or advertising. This will help you price your services correctly and plan for realistic growth.

Relying on one platform

Using a single platform like Etsy or Upwork to find all your customers can be risky. Algorithms change, and accounts can be suspended. Build a safety net by creating your own website, growing an email list, and using multiple social media channels. This way, you always have a direct line to your audience.

Conclusion

​Starting an online side hustle can open the door to extra income, new skills, and greater financial freedom. Whether you choose to sell products, offer freelance services, or build a following as a creator, success comes from patience and consistent effort.​

Ready to start your journey with a low-risk, creative business? Join Printful! With on-demand printing, fast UK fulfilment, and easy integrations with top eCommerce platforms, you can create and sell custom products and build your own brand without ever managing stock.