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His Secret Side Hustle Earned $72K in 9 Months

  • Make_That_Money

  • Mobile Detailer (Side Hustle)
  • $72,000 in 9 months

📝 Recently shared on Reddit…

I’m 26 and make ~$85k + 5% bonus at my day job. My business did ~$72k last year, working from March to November all by myself part-time, so nights and weekends only.

The day job is a finance role at an insurance company. The “business” is one-man mobile detailing, run from a custom trailer plus a new Ford Transit Connect setup wrapped with the logo.

Best month: $12K solo.

🤑 Average ticket: $285 incl. tips.

Pricing 👇

  • Exterior only: $100–150
  • Interior only: $250–275
  • Interior + exterior: $325–375
  • Monthly maintenance plan: $275

That last one is the kicker – he’s stacked enough monthly contracts for a guaranteed $5K/month without chasing new jobs. Booked out 1.5+ months. Clientele skews G-Wagons, Porsches, the occasional Ferrari.

The twist? He’s embarrassed about it…

The business does too well to ignore, but it feels so beneath me to tell people what I do. Very few friends and even family members know because I try to keep it as secret as possible.

Net worth at 26: ~$400K. Plus 2 duplex rentals.

A boring offline hedge against AI eating finance jobs is looking pretty smart right about now 😎

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Updated: May 29, 2026

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