The Business Case Behind These Numbers
Most food truck cost guides add up a list of items and give you a range. That's not analysis. The actual question is: what does each dollar cost you in terms of required revenue to break even?
At $800/day average revenue with 30% food cost and $5,000/month in other operating expenses, your monthly gross after food cost is $14,560. After operating costs, you net $9,560/month. That's your debt service capacity. A $100,000 startup cost amortized over 3 years at 8% interest is about $3,100/month. You can service that. A $200,000 startup at the same rate is $6,200/month. Tighter, but workable if your revenue holds.
Used vs. New: The Only Financial Case for New
New custom builds make economic sense in three situations: (1) you're building a catering-first business where the truck appearance is part of the pitch, (2) you need specialized equipment that can't be retrofitted into existing trucks, or (3) you've already operated a food truck profitably and are expanding. Otherwise, the $40,000–$100,000 you save buying used is your first year of operating capital. Don't give that up for aesthetics.
The City Decision Is Underrated
Operators talk about city choice in terms of market size and competition. They should also talk about it in terms of permit math. The $16,000 gap between Denver and Boston in year-one permit costs is real money. If you're in Denver and the permits are $811, you have $16,000 more flexibility in your startup budget. You can buy a better truck, hire help sooner, or simply survive longer if revenue is slow.
Some high-permit cities (San Francisco, Seattle) also have higher average daily revenues because the population density is higher and the customer base spends more per transaction. The math can still work. But go in with clear eyes about what you're paying for access to that market.
The Commissary Variable Nobody Budgets For
First-time owners routinely forget the commissary. It's $300–$800/month you can't avoid in most cities, and it's cash out the door before you serve a single customer. Over three years, that's $10,800–$28,800 in commissary fees alone. That's significant. Some operators solve this by sharing a commissary with other food trucks (splitting costs) or partnering with a restaurant that has underutilized evening kitchen hours.
How to Think About Working Capital
The 3-month working capital rule exists because food trucks have a genuine ramp-up period. You're not profitable on day one. You're learning where customers are, building regulars, refining your prep times. Revenue in month one is almost always 40–60% of what it'll be at month six. If your operating costs are $8,000/month and you're pulling in $5,000 in revenue in month one, you're burning $3,000 in cash. Three months of that is $9,000. Have it before you open, or don't open yet.
Use the calculator on the main page to run your city-specific numbers before committing to a truck purchase.