50 Businesses You Can Start for $100 or Less

These aren't hypothetical. They're not "passive income hacks" from some dude's TikTok. They're real businesses — the kind that real people started with almost nothing and turned into real income.

For The $100 Startup, I studied 1,500+ people who built businesses earning $50,000 or more from a very modest investment. Many started for under a hundred bucks. Some started for nothing. What they had in common wasn't money — it was the decision to start.

Here are 50 of those ideas, organized by type. Pick one. Or let one pick you.

Before You Pick One

Don't just scan this list looking for what sounds cool. Look for the overlap of three things:

1. A skill you already have — something you're good at, even if you take it for granted. Especially if you take it for granted.
2. A specific group of people who need help — not "everyone." A particular kind of person with a particular kind of problem.
3. Something you can start this week — not next quarter. Not after you finish your certification. This week.

That's it. If an idea hits all three, it's worth testing. If it doesn't, keep scrolling.

Service Businesses

Services are the fastest path from zero to revenue. You're selling your time and expertise — no inventory, no warehouse, no waiting for a shipment from Shenzhen. Here are 15 that work.

1. Freelance Marketing Consulting. You don't need an agency. You need one client who doesn't know how to run Facebook ads or write a decent email sequence. Help them. Charge $500/month. Startup cost: $0–$50 for a simple website.

2. Freelance Writing. Businesses need blog posts, newsletters, case studies, and website copy. If you can write clearly — not brilliantly, clearly — there's work. Michael started pitching small businesses on Upwork with zero portfolio pieces and landed his first $200 gig within a week.

3. Virtual Assistant. Email management, calendar scheduling, data entry, travel booking. One busy entrepreneur with too many tabs open is all you need. Startup cost: $0.

4. Bookkeeping. Sarah started a virtual bookkeeping business for $50 in QuickBooks costs and had three clients within a month — all local restaurants who hated doing their own books. You don't need a CPA license for basic bookkeeping.

5. Personal Training. Not at a gym — at a park, in someone's garage, or over Zoom. A certification helps but isn't always required depending on your state. Startup cost: $50–$100 for basic equipment and liability insurance research.

6. Tutoring. Math, reading, SAT prep, college essays. Parents will pay $40–$80/hour for someone who can help their kid stop crying over algebra. Startup cost: $0.

7. Photography. Headshots for LinkedIn. Product photos for Etsy sellers. Family portraits in the park. You need a decent camera — or a smartphone from the last two years and good light. Startup cost: $0–$100.

8. Pet Sitting & Dog Walking. Start on Rover or Wag, then go independent once you have repeat clients and reviews. Laura quit her corporate job after her dog-walking side gig hit $3,000/month. Startup cost: $0.

9. House Cleaning. Supplies cost $30. Your first client comes from one Nextdoor post. Premium play: specialize in move-out cleaning or Airbnb turnovers — those clients pay more and rebook constantly.

10. Event Planning. Start small — birthday parties, baby showers, small corporate events. You're selling organization and taste, not a ballroom. Startup cost: $0–$50 for a portfolio website.

11. Social Media Management. Small businesses know they "should be on Instagram" but don't know what to post. Manage 3–4 accounts at $300–$500/month each. That's a real income. Startup cost: a Canva account ($0–$13/month).

12. Resume Writing & Career Coaching. People will pay $150–$500 to not stare at a blank Word document during a job search. If you've ever hired someone, you know what a good resume looks like. Startup cost: $0.

13. Translation Services. If you're fluent in two languages, you already have the product. Translate documents, websites, marketing materials. Startup cost: $0. Premium play: specialize in a field — medical, legal, immigration.

14. Home Organizing. The Marie Kondo effect is real and ongoing. People will pay you to come to their house, help them throw things away, and set up systems. One closet at a time. Startup cost: $20 in bins from Target.

15. Meal Prep Service. Cook in batches, deliver locally. Start with five clients who want healthy lunches. Check your local cottage food laws — many states let you cook from home with minimal licensing. Startup cost: $50–$100 in containers and ingredients.

Digital Products

Digital products scale. You make it once and sell it forever — or at least until you make something better. The startup cost is usually just your time plus a few bucks in tools.

16. Online Course. Teach what you know on Teachable, Gumroad, or Podia. Doesn't need to be fancy. A teacher named James created a 6-lesson course on classroom management techniques and earned $4,000 in the first two months — selling to other teachers for $29 each. Startup cost: $0–$39/month for a platform.

17. Ebooks. Write a short, specific guide. Not a 300-page opus — a 30-page playbook that solves one problem. "How to Plan a Wedding for Under $5,000." "A Guide to Hiking the Appalachian Trail Section by Section." Sell on Gumroad or Amazon. Startup cost: $0.

18. Templates. Notion templates, spreadsheet budgets, social media content calendars, wedding planning trackers. People will pay $9–$49 to skip the setup. Startup cost: $0.

19. Printables. Planners, wall art, kids' activity sheets, habit trackers. Design in Canva, sell on Etsy. A stay-at-home mom named Katie built a $2,000/month printables shop with nothing but the free version of Canva. Startup cost: $0–$20 for Etsy listing fees.

20. Stock Photography. Upload to Shutterstock, Adobe Stock, or sell directly through your own site. If you're already taking photos, you might as well sell the extras. Startup cost: $0.

21. WordPress Themes or Website Templates. If you know HTML/CSS, design themes and sell on ThemeForest or Creative Market. One good theme can earn passive income for years. Startup cost: $0.

22. Paid Newsletter. Pick a niche you can cover better than anyone — local restaurant news, indie book recommendations, weekly stock analysis for beginners. Substack or Beehiiv. Build free, then convert to paid. Startup cost: $0.

23. Membership Site. A gated community with ongoing content. Works best if you already have some audience, but you can start small. Five members paying $20/month is $100/month — and a foundation to build on. Startup cost: $0–$50.

24. Coaching Packages. One-on-one video calls. Package them: three sessions for $297, six for $497. You don't need a certification to help people with things you've done yourself — career transitions, fitness goals, business planning. Startup cost: $0.

25. Podcast. Free to start. Monetize through sponsorships, courses, or affiliate links once you have a few hundred regular listeners. The equipment bar is lower than you think — a $60 USB mic and Audacity (free software) will get you started. Startup cost: $0–$60.

26. YouTube Channel. Tutorials, reviews, how-tos, day-in-the-life. Revenue comes from ads, sponsorships, and selling your own products. Your phone is good enough to start. Startup cost: $0.

27. Digital Art & Design Assets. Icons, illustrations, fonts, social media templates. Sell on Creative Market or Gumroad. One designer created a set of 200 hand-drawn icons and has sold it steadily for three years. Startup cost: $0 if you already have design software.

Physical Products & Local Businesses

Yes, you can sell physical things for under $100. The trick is starting small, testing demand before you invest, and not ordering 10,000 units of anything.

28. Farmers Market Vendor. Baked goods, jams, honey, hot sauce, handmade soap. Booth fees run $20–$50. One weekend will tell you if people want what you're making. Startup cost: $50–$100.

29. Handmade Goods on Etsy. Jewelry, candles, pottery, knitted items, leather goods. Start with what you can make at your kitchen table. Don't overthink the branding. Startup cost: $20–$80 in materials plus $0.20/listing on Etsy.

30. Mobile Car Detailing. A bucket, some quality cleaning products, and a willingness to drive to people's driveways. Charge $75–$150 per car. Do two cars on a Saturday — that's your startup cost back in one day. Startup cost: $50–$100.

31. Lawn Care. You probably already have a mower. If not, a used one runs $50–$100. Knock on doors in your neighborhood. Charge $30–$50 per yard. It's not glamorous, but it's immediate cash. Startup cost: $0–$100.

32. Pressure Washing. Rent a pressure washer for your first jobs ($40–$75/day) to test demand before you buy one. Driveways, decks, fences, siding. Charge $100–$300 per job. Startup cost: $40–$75 for a rental.

33. Custom Clothing & Alterations. If you can sew, people will pay you. Hemming pants, taking in dresses, custom patches. A sewing machine and basic supplies. Startup cost: $50–$100 if you need a machine (check thrift stores).

34. The $100 Food Cart. Not a full food truck — a cart. Tamales, elote, fresh lemonade, gourmet hot dogs. Check your city's street vending regulations. Marcus started selling grilled corn from a $60 used cart at local events and scaled to three carts within a year. Startup cost: $60–$100.

35. Vintage Reselling. Thrift stores, estate sales, garage sales. Buy low, sell on eBay, Poshmark, or Depop. Specializing helps — vintage denim, mid-century kitchenware, rare vinyl. Startup cost: $20–$50 in initial inventory.

36. Craft Fair Vendor. Similar to farmers markets but focused on handmade and artisan goods. Test different products at a few fairs before committing to a niche. Startup cost: $50–$100 for booth fee and materials.

37. Home Baking. Cottage food laws in most states let you sell baked goods made in your home kitchen. Custom cakes, cookies for events, sourdough bread subscriptions. Rosa started selling decorated sugar cookies on Instagram and now books out two months in advance. Startup cost: $30–$50 in ingredients and packaging.

Skills-Based & Creative

If you've spent years developing a skill — especially one other people find mysterious or difficult — you can sell that. Period.

38. Music Lessons. Guitar, piano, drums, voice. In person or over Zoom. Parents will pay $40–$80/hour. You don't need a music degree — you need to be better than your student. Startup cost: $0.

39. Graphic Design. Logos, social media graphics, business cards, flyers. Start on Fiverr or 99designs to build a portfolio, then go direct. Startup cost: $0 if you have design software (Canva works for simpler projects).

40. Web Design. Small businesses need websites. Many will pay $500–$2,000 for something clean and functional. Use WordPress, Squarespace, or Webflow — you don't need to code from scratch. Startup cost: $0–$50.

41. Copywriting. Sales pages, email sequences, ad copy. Good copywriters are rare and valuable. If you can write words that make people want to buy things, you can name your price pretty quickly. Startup cost: $0.

42. Voice Acting. Audiobooks, commercials, explainer videos, podcast intros. A decent USB microphone ($50–$80) and a closet full of clothes (instant sound booth). Audition on ACX or Voices.com. Startup cost: $50–$80.

43. Video Editing. YouTubers, small businesses, and course creators all need editors. DaVinci Resolve is free and professional-grade. Learn it in a weekend, start pitching by Monday. Startup cost: $0.

44. Illustration & Custom Art. Portraits, pet illustrations, wedding invitations, children's book art. Sell commissions on Etsy or Instagram. Startup cost: $0–$30 in supplies.

45. Language Teaching. Teach English online to international students, or teach Spanish, Mandarin, or French to locals. Platforms like iTalki and Preply handle the marketing for you while you build a client base. Startup cost: $0.

Unconventional / Niche

The weird stuff. The ideas that make your friends say "people pay for that?" Yes. They do. Often handsomely.

46. Professional Organizer. Different from home organizing — this includes offices, digital file systems, and workflows. Companies will pay $75–$150/hour to have someone fix their chaotic shared drives and filing cabinets. Startup cost: $0.

47. Pet Waste Removal. It's not glamorous. It's extremely profitable. Charge $15–$20 per visit, hit 10 houses in a morning. That's $150–$200 before lunch. Brian built a pet waste business to $4,000/month with nothing but a rake, bags, and a strong stomach. Startup cost: $20.

48. Drone Photography & Video. Real estate agents, event venues, construction companies, and farmers all want aerial footage. If you already have a drone, you're halfway there. Get your Part 107 license ($175 exam fee — a bit over $100, but the ROI is enormous). Startup cost: $0–$100 if you have a drone already.

49. Mystery Shopping Service. Not doing the mystery shopping yourself — organizing it. Small retail chains and restaurants will hire you to coordinate shoppers and deliver reports. You recruit the shoppers (often for free), collect the data, and charge the businesses. Startup cost: $0–$50 for a basic website.

50. Custom Gift Baskets. Curated themed gift baskets — new baby, housewarming, corporate thank-you, "sorry your team lost the Super Bowl." Source items from dollar stores, wholesale suppliers, and local makers. Sell on Etsy or to local businesses. Amy started making gift baskets for real estate agents to give their closing clients and now does 30+ baskets a month. Startup cost: $50–$100.

What These All Have in Common

Fifty ideas. Dozens of categories. But if you zoom out, the patterns are clear:

• Low startup costs. None of these require a loan, an investor, or a rich uncle. Most need less than $50. Some need nothing but your willingness to show up.
• Skill-based, not capital-based. You're selling what you already know or can learn quickly — not warehousing inventory or building a factory.
• Started on the side. Almost every case study from The $100 Startup began as a side project. Evenings. Weekends. Lunch breaks. You don't have to quit your job to test an idea.
• Grew organically. No massive launch. No viral moment. Just a first customer, then a second, then word of mouth, then momentum.

The hardest part isn't picking the right idea. It's starting before you feel ready. You'll never feel ready. Start anyway.