Estimate your total startup investment — one-time costs, monthly burn, and how long your runway lasts.
| Month | Cumulative Spend | Remaining Budget | % Used |
|---|
Enter your expected one-time startup expenses — things you pay once to get the business off the ground — and your anticipated monthly operating costs. Then set how many months of runway you want to fund before your business becomes self-sustaining. Hit Calculate Startup Costs to instantly see your total required funding, a visual breakdown by category, and a month-by-month cash flow table.
You can add custom line items using the "Add Custom" buttons for any costs specific to your industry or business model. The emergency buffer field lets you add a safety percentage on top (industry standard: 15–25%).
Undercapitalization is one of the top reasons new businesses fail — not a bad product or weak demand, but simply running out of money. A 2023 survey by the Federal Reserve found that 43% of small business owners who applied for financing cited insufficient cash flow as the primary challenge. Knowing your real startup number before launch changes everything.
Consider a food truck operator in Austin. Equipment ($18,000), permits ($1,200), branding ($800), and a used vehicle wrap ($2,500) add up fast — before a single taco is sold. Add 6 months of fuel, commissary fees, insurance, and part-time labor ($4,800/month), and the true first-year investment exceeds $50,000. Without a clear number, they'd likely underestimate by 30–40% and burn through reserves in month 3.
Whether you're pitching to investors, applying for an SBA loan, or self-funding with savings, a detailed startup cost estimate is non-negotiable. Lenders expect it. Investors require it. And you need it to set realistic revenue targets.
The calculator uses three components to arrive at your recommended total funding:
Formula:
Total = (One-Time Costs + Monthly Costs × Months) × (1 + Buffer%)
The month-by-month table tracks cumulative spend starting from month 0 (one-time costs), then adding monthly burn each subsequent month, so you can see exactly when you'd exhaust different funding levels.
According to the U.S. Small Business Administration, most small businesses spend between $3,000 and $5,000 for very basic operations (home-based service businesses), but brick-and-mortar or product businesses routinely require $50,000–$250,000 before generating significant revenue. The range is extremely wide depending on industry, location, and model.
Financial advisors typically recommend 15–25% for established industries with predictable costs, and up to 40% for first-time entrepreneurs or novel business models. The more unknowns in your plan, the larger the buffer should be. Surprises almost always increase costs, rarely reduce them.
Yes — the output gives you a clean summary of one-time costs, monthly burn rate, and total funding required, which are exactly the numbers investors and lenders ask for. Use the "Copy Summary" button to pull the data into your pitch deck or business plan document.
Startup (one-time) costs are expenses to get the business to the point of opening — you pay them once. Operating costs are ongoing monthly expenses required to keep the business running. Both matter for your funding target: startup costs hit before you open, operating costs hit every single month afterward.