Understanding Business Costs

Every dollar that leaves your business falls into one of two categories: Fixed or Variable. Knowing the difference isn't an accounting exercise—it is the difference between surviving a downturn or going bankrupt.

Fixed Costs (The Overhead Trap)

Fixed costs are expenses that do not change based on your production or sales volume. You owe this money whether you sell one million items or zero.

• Office space leases and rent
• Salaries for administrative and core staff
• Business insurance premiums
• Software subscriptions (SaaS)

The Danger: A business with exceedingly high fixed costs has a high "Break-Even Point." If a recession hits and sales drop by 50%, the fixed costs do not drop. This causes immediate margin compression and cash flow crises.

Variable Costs (The Scale Tax)

Variable costs scale linearly with your output. If you produce zero items, your variable cost is zero. If you produce 100 items, your variable cost multiplies by 100.

• Raw materials and inventory costs
• Payment processing fees (e.g., Stripe's 2.9% + 30¢)
• Shipping and fulfillment fees
• Sales commissions

The Safety Net: Businesses with high variable costs (like drop-shipping or commission-only agencies) carry very little risk. If sales drop, costs drop equally. However, they struggle to achieve exponential profit growth because costs rise just as fast as revenue.

Operating Leverage

Operating Leverage is the ratio of fixed costs to variable costs.

A SaaS Company has High Operating Leverage. Building the software is a massive fixed cost. But reproducing the software for the 10,000th customer has a variable cost near $0. Once the fixed costs are cleared, almost 100% of new revenue becomes pure profit.

A Grocery Store has Low Operating Leverage. Almost all costs are variable (buying the food from distributors). Their Net Margin will always remain tight, regardless of how much revenue they generate.