Let’s start with a truth bomb:
Sales don’t pay your bills. Profits do.
Every day, I meet e-commerce sellers who brag about sales numbers:
“We did $50K last month!”
Fantastic. But when I ask, “How much profit did you make?” I get blank stares.
Here’s the harsh reality:
Most online sellers don’t actually know their real numbers.
If you don’t know your numbers, you’re flying blind hoping Amazon, Shopify, or Etsy will magically make you rich.
Let’s fix that.
Here are the 6 critical numbers every online seller needs to track to build a profitable, growing business.
1️⃣ Revenue — Not Just Sales, But True Revenue
Your dashboard says $20,000 in sales. But:
- Did you subtract refunds?
- Account for promo codes & returns?
- Factor in canceled orders?
Your net revenue (after returns, discounts, and chargebacks) tells the real story.
👉 At Blu Hat Bookkeeping, we track the real revenue, not vanity metrics.
2️⃣ Cost of Goods Sold (COGS) — The Silent Killer
Every product costs money to get to the customer:
- Manufacturing & packaging
- Shipping & duties
- Amazon FBA fees
If you’re not tracking COGS precisely, you’re guessing profits.
👉 We help sellers calculate COGS even with hundreds of SKUs.
3️⃣ Platform Fees — The “Hidden Tax” on Every Sale
Amazon, Shopify, Etsy, they all take a cut:
- Referral & transaction fees
- Payment processing fees
- Storage & fulfillment fees
These fees quietly drain your margins.
👉 We make sure you know exactly how much each platform is costing you.
4️⃣ Advertising Spend — Facebook, Google, TikTok… Oh My
You think you’re profitable until ads tell a different story:
- Facebook & Google PPC
- TikTok influencers
- Amazon Sponsored Ads
Without tracking Return on Ad Spend (ROAS), you’re guessing.
👉 We connect ad spend directly to your profit line.
5️⃣ Operating Expenses — The Bills That Keep Coming
Recurring expenses that eat into profits:
- Shopify apps & software subscriptions
- Virtual assistants & contractors
- Office expenses, internet, utilities
Track them monthly. Know which expenses are necessary — and which are bleeding your business.
👉 We’ll show you where you can save.
6️⃣ Cash Flow — The #1 Reason E-Commerce Businesses Fail
You can be profitable on paper and still run out of cash:
- Inventory ties up cash.
- Ads demand upfront payments.
- Platforms delay payouts.
👉 We build simple, clear cash flow forecasts so you never get caught short.
The Bottom Line:
👉 You don’t need to become an accountant to succeed in e-commerce.
👉 But you do need to know your numbers or hire someone who does.
That’s where Blu Hat Bookkeeping comes in:
- We help e-commerce sellers like you understand your numbers.
- We turn messy books into clear financial stories.
- We help you grow with confidence.
Ready to Stop Guessing and Start Growing?
👉 Schedule a free consultation with Blu Hat Bookkeeping today.

