Your ad dashboard says each purchase cost you EGP 150. Your real customer acquisition cost, the one your bank account feels, is often more than double that. The gap sits in orders refused at the door, in returns, and in old customers counted as new ones.
Under cash on delivery, a purchase in the dashboard is a promise, not a sale. The real figure only appears when you follow each order to the customer who kept it.
What Is Customer Acquisition Cost in Marketing?
Customer acquisition cost in marketing is the total amount you spend to win new customers, divided by the number of new customers you actually won. It answers one question: how much did each new paying customer cost to bring in?
The answer decides whether your advertising builds the business or drains it. A campaign can look cheap per click and still lose money on every customer it brings.
CAC Meaning in Business and Marketing
In business, CAC is shorthand for customer acquisition cost. Owners use it to judge whether growth is profitable, and marketers use it to compare channels.
A useful CAC counts only customers who are new to you and who paid. A repeat buyer, a refused order and a returned order all belong to other metrics.
Ad platforms report a similar-sounding metric, cost per acquisition (CPA). CPA counts any conversion the platform tracks, such as a lead, a sign-up or an order. CAC counts only new paying customers, which is why the two rarely match.
Customer Acquisition Cost Formula
The customer acquisition cost formula is short:
CAC = total acquisition cost in a period ÷ new customers acquired in the same period
Both sides must cover the same period and the same scope. If you count one month of Facebook spend, count only the new customers Facebook brought that month. Mixing scopes produces a number that looks precise and means nothing.
What Belongs in the Cost: Ads, Team, Tools
Ad spend is the largest part of the cost, but not the whole of it. A complete figure adds the share of salaries spent on campaigns, design and content production, the tools you pay for, and first-order discounts or vouchers.
Jumia, the listed e-commerce group that counts Egypt among its largest markets, defines its own sales and advertising expense in the same broad way. Its annual report includes online and offline marketing, brand promotion through traditional media, and expenses tied to customer acquisition and engagement.
Leave out anything that serves existing customers only, such as a loyalty programme for repeat buyers. Those costs belong to retention.
Ad Platforms and the Cost to Acquire a Customer
Ad platforms report a cost per purchase or a cost per result. That number is accurate for what it measures: an event inside the platform, not a customer inside your accounts.
The platform sees the moment a visitor submits an order. It doesn’t see the courier at the door, the refund a week later or the order history in your records.
Orders Are Not the Same as Customers
A purchase event fires when the customer submits the order. Under cash on delivery, no money has changed hands at that moment.
Even listed companies count this way in their headline metrics. Jumia counts its Orders and Annual Active Customers irrespective of cancellations or returns.
Your ad platform does the same with your orders. What it calls a cost per purchase is really a cost per order received, and an order received is still a long way from a customer acquired.
Refused Deliveries and Returned Orders
Every order refused at the door still consumed ad spend, a shipping attempt and time from your team. Jumia’s annual report notes that it typically makes three delivery attempts before it returns a product to the seller.
A returned order goes further. You paid to acquire it, paid to ship it and then refunded it. None of these orders produced a customer, so their cost has to be spread across the orders that did.
Payment habits keep this gap wide. Jumia reports that orders paid through its payment gateways stayed at 29% of its gross merchandise value in the fourth quarter of 2025, the same share as a year earlier.
Returning Customers Counted as New
Platforms credit a purchase to an ad whenever the buyer clicked or viewed it within the attribution window. Many of those buyers had already bought from you before.
They saw the ad, but they would have come back anyway. Counting them as new customers spreads the cost over people the campaign didn’t actually win.
Jumia reported 6.0 million annual active customers in 2025, up 11%. The figure counts everyone who ordered during the year, so it mixes new and returning buyers. Your own records can separate the two: count a customer as new only on their first delivered order.
How to Calculate Customer Acquisition Cost
Here is how to calculate customer acquisition cost for one month, using a hypothetical store that sells by cash on delivery. The numbers are illustrative only.
The month’s acquisition costs
- Ad spend on Google and Meta: EGP 60,000
- Share of team time, design and tools: EGP 15,000
- First-order discount vouchers: EGP 6,000
- Shipping paid on refused orders (60 orders × EGP 50): EGP 3,000
- Total acquisition cost: EGP 84,000
What the dashboard shows
- Purchases reported: 400
- Cost per purchase: EGP 60,000 ÷ 400 = EGP 150
What actually happened to the 400 orders
- Refused at the door: 60
- Delivered, then returned: 20
- Delivered and kept: 320
- Of those, customers who had bought from the store before: 80
- New customers acquired: 240
The real figure
- CAC: EGP 84,000 ÷ 240 = EGP 350
The real figure is more than double the dashboard figure. Nothing in the ad account was wrong; it answered a different question, what each order cost, not what each new customer cost.
Run the same calculation for each channel separately. The ranking you get can differ from the one cost per purchase suggests.
Is Your Customer Acquisition Cost Too High?
A CAC figure means little on its own. It becomes useful when you compare it with what a new customer is worth to you.
CAC Compared With First-Order Margin
Take the same store. Its average first order is EGP 900, and its gross margin is 40%, so each first order leaves EGP 360 before marketing.
Against the dashboard figure of EGP 150, every new customer looks comfortably profitable. Against the real figure of EGP 350, the first order barely covers the cost of winning it. Six more refused orders that month, and each new customer would cost more than their first order earns.
CAC Compared With Customer Lifetime Value
Paying more than the first-order margin can still make sense if customers come back. Jumia’s cohort data shows how much that second order matters: 46% of its new customers from the third quarter of 2025 made a second purchase within 90 days, up from 42% a year earlier.
The question becomes how many orders it takes to earn the cost back. That calculation belongs to customer lifetime value, and for the budget as a whole, to marketing ROI.
What Is a Healthy CAC Payback Period for SMEs?
Knowing your CAC is only half the battle; knowing how quickly you recover that cost determines your cash flow health. For small and medium businesses, a healthy CAC payback period is typically between 3 to 6 months (or on the first order for e-commerce with low repeat rates). If it takes longer than 12 months to recoup your acquisition cost, your marketing spend will strain your operational working capital.
Blended CAC vs. Paid CAC: The Power of Word-of-Mouth
Evaluating CAC solely on paid advertising channels can distort your overall financial picture. Paid CAC isolates the spend on ads against the direct sales they generate, while Blended CAC divides total marketing spend across all acquired customers—including organic, referral, and word-of-mouth buyers. Building strong post-purchase experiences and referral loops lowers your Blended CAC over time, making your business far more resilient.
4 Ways to Lower Customer Acquisition Cost
Cutting the budget lowers spend, not the cost of each customer. These four decisions lower what each new customer costs you.
1. Reduce Refused Cash-on-Delivery Orders
Every refusal you prevent removes a cost and adds a customer at the same time. That makes it the fastest lever in a cash-on-delivery business.
In the worked example, halving refusals from 60 to 30 would cut CAC from EGP 350 to about EGP 306, without one more EGP on ads. Jumia’s annual report notes that it pays transaction fees on card, mobile money and bank transfer payments and none on cash on delivery, so a prepaid option costs a little, but it protects the order.
2. Shift Budget to the Lowest-Cost Channel
Compare channels on delivered new customers, not on purchases. A channel with a higher cost per click can still bring buyers who refuse less and return more.
Jumia describes the same discipline in its 2025 results, focusing marketing on efficient channels such as paid online marketing, CRM, SEO and local offline channels like radio and print.
3. Raise the Landing Page Conversion Rate
The same ad spend divided by more buyers gives a lower CAC. A page that answers delivery, returns and payment questions before the visitor asks turns more clicks into orders that stick.
This is the work of conversion rate optimization, and its effect shows up directly in acquisition cost.
4. Tighten Your Audience Targeting Quality
Broad targeting buys cheap orders from people who never meant to pay. Narrowing the audience can raise the cost per purchase and still lower the real CAC, because fewer of those purchases fail.
Judge the change on delivered new customers. A higher dashboard number next to a lower real number is a win, not a setback.
Calculating and Tracking Customer Acquisition Cost Is a Burden: Why Hand It to Specialists
The real CAC lives in three systems that don’t talk to each other: the ad accounts, the order records and the delivery reports.
Ad, Sales and Returns Data That Need Pulling Together Every Month
Each month, spend has to be matched to orders, orders to deliveries and deliveries to new customers, channel by channel. Done by hand, beside the business, it rarely happens on time.
One Wrong Number Keeps the Losing Campaign Running and Stops the Winner
A channel that looks cheap in the dashboard can be the most expensive once refusals are counted. Read the wrong number, and the budget moves in the wrong direction.
How Brand Brew Takes Customer Acquisition Cost Off Your Hands
We work out what each new customer really costs you and run the campaigns against that number.
We Calculate Your Real Cost per Customer Before Any Budget Decision
We start from your ad spend, your delivery records and your customer list. The budget decision comes after the real CAC, not before it.
A Data Team Links Ad Numbers to Sales Numbers
Our team connects each channel’s spend to the delivered new customers it brought, every month. See our data analysis services.
We Move Budget to the Channel With the Lowest Cost per Customer
Budget moves to the channels that bring delivered new customers at the lowest cost, across Google Ads and social media advertising.
What is a customer acquisition cost example?
A store spends EGP 84,000 in a month on ads, team time, tools, discounts and shipping for refused orders. It wins 240 new customers who received and kept their orders. Its CAC is EGP 350, even though the ad platform showed EGP 150 per purchase.
How is the CAC calculated?
Add up everything you spent to win new customers in a period, then divide it by the number of new customers won in that same period. Count only customers who paid and kept the product, and leave out anyone who had bought from you before.
What is a good CAC percentage?
No single percentage fits every business. Compare CAC with the gross margin on a customer’s first order, and with what that customer brings in over time. A CAC below the first-order margin pays back at once, and a CAC above it works only if customers come back.
Start by Finding Out What a Customer Really Costs You
Your ad accounts hold half the answer. The other half sits in your delivery and returns records.
Send us both, and we’ll show you your real CAC by channel and which spend brings customers who stay.
