8 Lucrative Side Gigs for People Under 40 (That You May Not Have Considered)
You don’t have to be over the hill to appreciate the benefits of some solid passive income. In 2026, more people under 40 are turning to side hustles to build wealth, pay off debt and create financial freedom faster than ever. In fact, according to Hostinger, over 36% of Americans have side gigs, but Gen Z leads the way, with 48% reporting having one (more than any other generation), followed closely by millennials at 44%.
Whether you're dealing with the ever-so-fun rising costs of just living or simply want extra cash for travel, investing or everyday expenses, finding the best high-paying side gigs you can do from anywhere is paramount. Even better, it can grow into a full-time income if you play your cards right.
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Your skills may vary, but his list of the most lucrative side gigs for people under 40 focuses on options that are realistic, scalable and beginner-friendly. In other words, there is something for everyone.
1. Freelance Web Developer
Estimated average hourly pay: $35-$40
The tech era is having a renaissance, so making extra money in this field can be easy pickings. A freelance web developer builds and maintains websites for businesses, startups and individuals. With every business having an online presence, demand is high for those with knowledge of HTML, CSS, JavaScript and PHP, and according to ZipRecruiter, you can expect to earn upwards of $40 an hour.
2. AI Prompt Engineer
Estimated average hourly pay: $54
Most companies right now are saying stuff like, “In order to AI more, we need more AI to successfully AI,” so knowledge of the tool is quite profitable. An AI prompt engineer provides support to businesses in creating prompts and does everything from staying on top of the latest technologies to managing prompts and developing algorithms.
3. Car Detailer
Estimated average hourly pay: $16-$20
People love having a clean car, but finding time to hit the car wash is another story. That's where your side hustle comes in with a little elbow grease.
A mobile car detailing gig doesn't take much to get started. Buy a $24 car-cleaning kit from Amazon, tell your neighbors and friends you're detailing cars, and ask for word-of-mouth referrals. Payment should be received after each job is complete.
4. Electronics Repair Technician
Estimated average hourly pay: $29
If you're great at troubleshooting problems and have in-depth knowledge of electronics, repair work can be a high-margin side gig. Fixing items such as smartphones, laptops and household appliances allows you to monetize your expertise while meeting customer demand -- especially as people look to repair rather than replace costly devices.
5. House Cleaner
Estimated average hourly pay: $17-$20
House cleaners are always in demand, or to put it differently -- cha-ching. And it's relatively easy to build a client list by starting with friends, family or neighbors and expanding through referrals. With minimal startup costs (like buying supplies online) and flexible scheduling, house cleaning can be a dependable way to earn extra money.
6. Videographer
Estimated average hourly pay: $30-$35
From brand content to social media posts for companies to weddings and special events, freelance videography can be a financially rewarding side hustle. Work can be found through platforms such as Fiverr, networking and referrals, with experienced videographers often securing repeat clients and higher-paying projects. Having people say cheese is a great way to collect that cheddar.
7. Landscaper
Estimated average hourly pay: $18-$20
Depending on where you live, this can be a great seasonal side gig or you can run it all year round. As homeowners and businesses remain committed to maintaining beautiful, manicured yards, the landscaping industry continues to grow, creating new jobs for side hustlers. From mowing to planting to designing, landscaping requires a level of physicality to operate equipment, but also business management, like quoting and scheduling, is also helpful.
8. Online Course Creator
Estimated average hourly pay: $40
Knowledge is power, but creating it can be a good-paying side hustle where you design online course material that teaches a specific subject and helps others gain useful skills such as coding. By leveraging platforms such as Udemy and Teachable, you can sell your online courses and make a nice profit.
Heather Altamirano contributed to the reporting for this article.
This article was provided by MoneyLion.com for informational purposes only and should not be construed as financial, legal or tax advice.
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