Most people can start a mobile detailing business for $500–$2,500 depending on whether they already have a vehicle and how many services they offer from day one. The key is knowing what is essential and what can wait until there are paying clients.
What to budget for
Start with the essential wash supplies, microfiber towels, a wet/dry vacuum, a portable water solution, interior products, insurance, registration, basic marketing, and fuel. Avoid expensive phase-two purchases before you validate demand.