Understanding Cost of Goods Sold (COGS): How to Categorize Expenses the Right Way
One of the most common questions we hear when reviewing financials with business owners is:
"What actually counts as Cost of Goods Sold — and what doesn't?"
It's a simple question, but it may have a big impact. How you categorize your expenses may affect your pricing, your profitability, and how clearly you understand your business.
Why COGS vs. Expenses Matters
Separating Cost of Goods Sold from operating expenses isn't just about clean bookkeeping. It directly impacts:
How profitable your products or services actually are
Whether your pricing makes sense
How confidently you can make decisions
If everything is grouped together, it's easy to misread your numbers — and make decisions based on incomplete information.
What Is Cost of Goods Sold (COGS)?
COGS includes the direct costs required to deliver your product or service. Think of it as what it takes to fulfill a sale.
A simple way to think about it: if you didn't make the sale, you wouldn't have that cost.
Examples for product-based businesses:
Raw materials
Packaging
Direct labor to produce items
Shipping tied to customer orders
Examples for service-based businesses:
Subcontractors or freelancers
Direct labor tied to client work
Materials used for a specific job
Software or tools used only for client deliverables
No sale = no cost → likely COGS.
What Are Operating Expenses?
Operating expenses (sometimes referred to as overhead) are the costs required to run your business overall, regardless of individual sales. These stay relatively consistent whether you have a busy month or a slow one.
Examples include:
Rent and utilities
Marketing and advertising
Administrative salaries
General software subscriptions
Bookkeeping, legal, or professional services
These are essential — but they aren't tied to any one specific sale.
COGS vs. Expenses: The Key Difference
The distinction comes down to direct vs. indirect costs.
COGS = costs tied directly to delivering a product or service
Operating expenses = costs to run the business as a whole
Getting this right is what allows your financials to actually tell the truth.
How This Impacts Your Profitability
When your numbers are structured correctly, you can clearly see:
Gross Profit = Revenue – COGS
Net Profit = Gross Profit – Operating Expenses
Gross profit shows whether your actual work is profitable. Net profit shows whether your business as a whole is sustainable.
If COGS and expenses are mixed together, that visibility disappears.
A Simple Real-World Example
Say you run a service business and pay a subcontractor to complete client work.
If that cost is categorized as an operating expense, your margins may look stronger than they actually are
If it's correctly categorized as COGS, you'll see the true cost of delivering that service
That matters beyond just clean books. If your subcontractor costs aren't in COGS, your pricing may not actually reflect what it costs to do the work — and you could be undercharging without realizing it.
That's the difference between organized financials and genuinely useful ones.
What to Do If Yours Are Mixed Together
This is very common — and usually a straightforward fix. In most cases it just takes:
Reviewing how expenses are currently categorized
Moving the right costs into COGS
Making sure it stays consistent going forward
Once it's set up correctly, your financials become much more useful.
Bottom Line
COGS and operating expenses serve different purposes — but both are essential. The goal isn't just organized books. It's having numbers you can actually trust and use.
This is one of those areas that often goes unnoticed—until the numbers don’t quite add up.
Once COGS and expenses are structured correctly, your financials start to feel a lot more usable.
If you’re looking for that kind of clarity, we’re here when you’re ready.
