Best Online Courses for Side Hustles UK 2026 — Learn to Earn More

Digital Marketing — The Most Versatile Side Hustle Skill

Every small business in the UK needs digital marketing help. SEO, Google Ads, social media management, email marketing — these are skills that businesses pay freelancers £300–£800/day for. The Google Digital Marketing & E-Commerce certificate teaches all of them.

Data Analytics — High-Value Freelancing

Data analyst freelancing pays significantly more than most other side hustles — £300–£600/day for experienced freelancers on platforms like Toptal and Upwork. The Google Data Analytics certificate gives you the SQL, Tableau and data storytelling skills to get there.

Prompt Engineering — The Newest Paid Skill

Businesses are hiring prompt engineers and AI consultants at rates that would have seemed absurd two years ago. If you can help a business use ChatGPT and other AI tools to save 10 hours/week, that's worth hundreds of pounds per month to them. Prompt Engineering for ChatGPT is the 19-hour course that teaches you exactly this.

AI Skills — Upsell Your Current Job

The fastest side hustle isn't always a new business — it's being more valuable in your current job and negotiating a pay rise. Google AI Essentials teaches practical AI skills that immediately increase your productivity and value. Many people who complete it are promoted within 6 months.

Project Management — Getting Paid to Run Things

Freelance project management is a growing market — businesses need people to run projects without hiring full-time employees. The Google Project Management certificate teaches Agile, Scrum and stakeholder management — core skills for freelance PM work starting at £200–£400/day.

All five side hustle certificates are available on Coursera. Try Coursera Plus for unlimited access.

Sento earns a commission if you enrol through our links — this never affects our recommendations. Coursera prices and course details are correct at time of publication. Updated April 2026.