Operating Expenses Explained: What Counts and How to Track Them

Operating Expenses Explained: What Counts and How to Track Them

Operating expenses—often called OPEX—are the costs of running your business day-to-day. Understanding them is crucial because they directly impact your bottom line. This guide breaks down what counts as an operating expense and how to manage them effectively.

What Are Operating Expenses?

Operating expenses are the ongoing costs required to run your business that are NOT directly tied to producing what you sell.

The key distinction:

Example:

For a restaurant:

Why Operating Expenses Matter

Operating expenses determine whether your gross profit translates to actual profit.

```

Gross Profit - Operating Expenses = Operating Income

```

You could have a 60% gross margin and still lose money if operating expenses are too high.

Complete List of Common Operating Expenses

Facility Costs

People Costs

Marketing and Sales

Professional Services

Technology

Office and Administrative

Insurance

Fixed vs. Variable Operating Expenses

Fixed Expenses

Costs that stay the same regardless of sales:

Variable Expenses

Costs that fluctuate with activity:

**Why it matters:** Understanding fixed vs. variable helps with forecasting and break-even analysis.

Operating Expense Ratios

Operating Expense Ratio (OER)

```

OER = Operating Expenses ÷ Revenue × 100

```

Example:

Industry Benchmarks

| Industry | Typical OER |

|----------|-------------|

| Retail | 20-30% |

| Restaurants | 25-35% |

| Professional Services | 15-25% |

| Manufacturing | 10-20% |

**Compare your OER to these benchmarks.** If you're significantly higher, there may be room to cut costs.

Organizing Your Operating Expenses

Create Clear Categories

```

Operating Expenses

├── Facility Costs

│ ├── Rent

│ ├── Utilities

│ └── Maintenance

├── People Costs

│ ├── Salaries

│ ├── Benefits

│ └── Payroll Taxes

├── Marketing

│ ├── Advertising

│ └── Promotions

└── Administrative

├── Professional Fees

└── Office Supplies

```

Use Consistent Categorization

Assign each expense to the same category every time. This enables meaningful comparisons over time.

Track Monthly

Review operating expenses monthly, not just at tax time. Catch problems early.

Controlling Operating Expenses

1. Review Every Line Item Annually

Ask: Is this expense necessary? Is there a cheaper alternative?

2. Negotiate Recurring Costs

3. Eliminate Waste

4. Automate Where Possible

Automation reduces labor costs for repetitive tasks.

5. Consider Outsourcing

Sometimes outsourcing is cheaper than hiring:

Common Expense Management Mistakes

Mistake 1: Not Tracking by Category

Lumping everything into "miscellaneous" prevents meaningful analysis.

Mistake 2: Cutting the Wrong Costs

Cutting marketing might reduce expenses but also kills revenue. Be strategic.

Mistake 3: Ignoring Small Expenses

$50 subscriptions add up. Review all recurring charges.

Mistake 4: Not Comparing to Benchmarks

You might think 40% OER is fine—until you learn competitors operate at 25%.

Mistake 5: Only Looking at Total Expenses

Breaking down by category reveals where to focus.

Industry-Specific Operating Expenses

Restaurant Operating Expenses

Retail Operating Expenses

Service Business Operating Expenses

Creating an Operating Expense Budget

**Monthly review:** Compare actual to budget, investigate variances.

Summary: Key Takeaways

| Point | Details |

|-------|---------|

| What they are | Ongoing costs to run the business (not COGS) |

| Why they matter | They determine if gross profit becomes net profit |

| How to organize | Clear categories, consistent coding |

| How to control | Regular review, negotiate, eliminate waste |

| Key metric | Operating Expense Ratio (compare to industry) |

Mastering your operating expenses is one of the most direct paths to improved profitability.

**Want to track your P&L including operating expenses?** Try our [Small Business P&L Generator](/small-business-pl-generator) to create professional profit and loss statements from your data.