Self-employment tax (15.3%) — sole proprietors and single-member LLCs pay both halves of Social Security and Medicare on net earnings; $60,000 net profit = ~$9,180 separate from income tax. Quarterly estimated taxes — due April 15, June 15, September 15, January 15. Multi-jurisdiction sales tax — every city you operate in may owe its own filing. Local meals or prepared-food tax — many cities and counties layer 1-4% on top of state sales tax. State unemployment insurance (SUI) — quarterly with employees. FUTA — 6% on first $7,000 of each employee wages. Propane and motor fuel excise tax — some states tax propane separately. Personal property tax — many counties tax the truck and equipment annually as business personal property; assessments arrive once a year. A licensed CPA in your state should review your specific situation.
- Skipping Q1 estimated tax in launch year because "we lost money" — once profitable, the bill compounds.
- Missing local prepared-food tax registration.
- No reserve for the annual personal property tax assessment.