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Case Study: How One Side Hustle Hit $100K ARR in 12 Months

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Individual: Mark, 28-year-old IT professional
Challenge: Dependent on single income, no savings
Goal: Build a $100K/year side hustle within 1 year

Strategy

  • Find a Niche – Launched a personal finance blog about ETFs and mutual funds.

  • Build an Audience on X – Shared daily tips on ETFs, the 4% rule, and passive income, growing to 10,000 followers in 6 months.

  • Monetize With Affiliates – Partnered with robo-advisors, earning $50–$100 per referral.

  • Launch a Digital Product – Created a $197 ETF investing course, selling 200 copies in 6 months.

  • Engage Audience – Used ConvertKit for weekly newsletters, sustaining a 40% open rate.

Results

  • Audience Growth: 10,000 X followers, 5,000 newsletter subscribers

  • Revenue Breakdown: $60K affiliate commissions + $40K course sales = $100K ARR

  • Impact: Helped 1,000+ readers start investing through content and coaching

Key Takeaway: A focused niche, audience building, and diversified monetization can transform a side hustle into a six-figure business in just 12 months.

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