The 15 Biggest Mistakes People Make When Starting a Side Business

Starting a side business can be one of the best ways to build financial freedom—but most people make costly mistakes that slow them down or cause them to fail entirely.

From pricing too low to focusing on the wrong things, here are the 15 biggest mistakes people make when launching a side hustle—and how to avoid them.

1. Waiting for the “Perfect” Idea

A person staring at a blank notebook, looking frustrated.
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Many people waste months (or years) “planning” their business instead of actually starting. They obsess over finding the perfect idea, but the truth is—execution matters more than the idea itself.

What to Do Instead:

  • Pick one idea and start testing it quickly.
  • If something isn’t working, adjust and improve instead of waiting for perfection.

2. Underpricing Their Services or Products

A business owner looking frustrated while checking small profit margins
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Most beginners charge way too little because they’re afraid no one will pay them. But low prices attract cheap clients and make it hard to scale.

What to Do Instead:

  • Research market rates and price yourself competitively.
  • Don’t just compete on price—offer more value instead.

3. Trying to Do Everything Themselves

A stressed-out business owner juggling multiple tasks at once.
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Many new entrepreneurs refuse to delegate, thinking they need to control everything. This leads to burnout and slower business growth.

What to Do Instead:

  • Automate repetitive tasks (use tools like Zapier, Canva, and QuickBooks).
  • Hire freelancers for things outside your skill set.

4. Ignoring Marketing (Thinking “If I Build It, They Will Come”)

A business owner looking sad at an empty storefront or website dashboard.
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A great product means nothing if no one knows about it. Many beginners spend months building something—but fail to promote it.

What to Do Instead:

  • Start marketing before you even launch.
  • Use social media, content marketing, and paid ads to get attention.

5. Not Defining Their Target Audience

A confused business owner unsure who their customers are.
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If you try to sell to everyone, you end up selling to no one. Many new entrepreneurs skip market research and struggle to attract the right customers.

What to Do Instead:

  • Define your ideal customer (age, location, interests, problems).
  • Tailor your messaging to speak directly to them.

6. Relying Too Much on Friends and Family for Support

A disappointed entrepreneur after realizing their friends aren’t buying from them.
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Your friends and family aren’t your real customers. Many people start side businesses assuming their personal network will support them—only to be disappointed.

What to Do Instead:

  • Focus on attracting real paying customers instead of relying on personal contacts.

7. Failing to Track Expenses and Profits

A small business owner overwhelmed by receipts and invoices.
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If you don’t track your money, you don’t have a business—you have an expensive hobby. Many side hustlers don’t track income, expenses, or taxes until it’s too late.

What to Do Instead:

  • Use simple accounting tools (QuickBooks, Wave, or even a spreadsheet).
  • Set aside at least 25% of your earnings for taxes.

8. Not Validating the Business Before Investing Too Much

A business owner
sitting next to unsold inventory, looking frustrated.
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Many people spend thousands on inventory, websites, and branding before proving their idea works.

What to Do Instead:

  • Test before you invest—sell a few products or services first to see if people buy.
  • Avoid buying bulk inventory until you know it will sell.

9. Choosing a Business Model That Won’t Scale

A tired freelancer working long hours with little reward.
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Some businesses trap you in endless work with no way to grow (e.g., trading time for money in a service-based business with no pricing strategy).

What to Do Instead:

  • Look for scalable options—sell digital products, create subscription models, or build a team over time.

10. Trying to Compete on Price Instead of Value

A small business owner looking frustrated at a competitor’s cheaper prices
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Beginners often think being the cheapest is the only way to attract customers—but this just leads to low profits and burnout.

What to Do Instead:

  • Focus on why your product/service is BETTER, not just cheaper.
  • Offer bonuses, better service, or convenience instead of racing to the bottom.

11. Neglecting to Build an Email List

social media account was banned.
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Social media is great, but you don’t own your audience. Platforms can shut down your account overnight, cutting off your customers.

What to Do Instead:

  • Start an email list from day one (use tools like Mailchimp or ConvertKit).
  • Offer a freebie or discount to collect emails.

12. Not Setting Clear Business Goals

woman in White Shirt Using Silver Ipad
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Without clear goals, it’s easy to waste time on the wrong things. Many side hustlers lack a real strategy and never make serious money.

What to Do Instead:

  • Set monthly income targets and track progress.
  • Break down goals into specific, measurable steps.

13. Not Learning Basic Sales Skills

A entrepreneur struggling to close a deal.
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Even if you have the best product, you won’t succeed if you can’t sell it. Many people are afraid of sales and avoid it completely.

What to Do Instead:

  • Learn basic sales techniques (how to talk to customers, handle objections, close deals).
  • Focus on helping customers solve problems rather than “selling.”

Read More: 10 Things to Do Before You Quit Your Job

14. Giving Up Too Soon

A discouraged man closing their laptop in frustration
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Many businesses fail simply because people quit too early. If you expect overnight success, you’ll be disappointed.

What to Do Instead:

  • Give yourself at least 6–12 months before deciding if it’s worth it.
  • Expect slow growth at first—consistency matters more than speed.

Read More: 10 Controversial Money Moves That Made People Rich

15. Not Having a Backup Plan for Failure

 A failed business owner staring at an empty bank account
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Many people go all-in on their side hustle too soon, quitting their job before they have stable income. This can lead to financial disaster.

What to Do Instead:

  • Keep your day job until your business makes steady, reliable income.
  • Have 6+ months of savings before making a risky leap.

Read More: 10 Corporate Jobs That Pay Well But Are a Soul-Sucking Nightmare

About the Writer

Jim Price

Jim Price is a Midwestern husband and father with a passion for helping readers navigate the worlds of finance and career growth. With a practical approach and real-world insights, he breaks down complex topics into actionable advice, empowering others to make informed decisions about their money and professional lives.

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