E-commerce has a deceptively low barrier to entry. You can set up a Shopify store in an afternoon and start selling by dinner. But the gap between having an online store and having a profitable online store is vast — and it's filled with failed businesses that ran out of cash trying to acquire customers in an increasingly competitive digital marketplace.
A feasibility study for an e-commerce business evaluates whether your product, at your margins, can be sold profitably through your chosen channels — accounting for the real costs of customer acquisition, fulfilment, returns, and platform fees that many founders underestimate.
Why E-Commerce Feasibility Is Different
E-commerce businesses face a unique economic challenge: the cost of acquiring each customer online is rising every year as more businesses compete for the same digital attention. Facebook and Google ad costs have increased dramatically. Organic search is harder to win. And customers have near-infinite alternatives one click away.
This means your feasibility study must focus intensely on unit economics: the margin on each order after all costs — product, shipping, platform fees, payment processing, marketing — and whether that margin can sustain a viable business at achievable volume.
Core Feasibility Components
Product and Margin Analysis
The foundation of e-commerce feasibility is product margin:
Gross Margin = (Selling Price − Cost of Goods Sold) ÷ Selling PriceBut in e-commerce, COGS isn't just the product cost. Your true per-order economics must include:
| Cost Component | Example ($50 product) |
|---|---|
| Product cost (wholesale/manufacturing) | $15.00 |
| Shipping to customer | $6.50 |
| Platform fee (Shopify, Amazon, etc.) | $1.50 |
| Payment processing (2.9% + $0.30) | $1.75 |
| Packaging materials | $1.50 |
| Returns allowance (10% × product cost) | $1.50 |
| Total landed cost per order | $27.75 |
| True gross margin | $22.25 (44.5%) |
Many e-commerce founders calculate margin using only product cost ($15) and think they have a 70% margin. The reality — 44.5% after all order-related costs — is a very different business equation.
Customer Acquisition Cost (CAC)
CAC is the total marketing spend required to acquire one paying customer. For e-commerce businesses, this includes paid advertising, influencer partnerships, content creation, SEO investment, and any discounts or promotions used to drive first purchases.
Current benchmarks for e-commerce CAC vary dramatically by niche: fashion and apparel typically runs $30–$80 per customer; health and beauty $20–$50; electronics $40–$100; niche/specialty products $15–$40.
Your feasibility study must project CAC by channel and assess whether the margin per order supports profitable customer acquisition.
The Critical Test: If your true gross margin per order is $22.25 and your CAC is $35, you lose $12.75 on every first-time customer. You need repeat purchases to become profitable — which means your feasibility study must model customer lifetime value, not just first-order economics.Customer Lifetime Value
For e-commerce, LTV depends on repeat purchase rate, average order frequency, and retention period:
LTV = Average Order Value × Orders per Year × Customer Lifespan (years) × Gross Margin %
If your average customer places 3 orders per year, with $50 average order value, over 2 years, at 44.5% margin:
LTV = $50 × 3 × 2 × 0.445 = $133.50
At a $35 CAC, the LTV:CAC ratio is 3.8:1 — healthy and viable. But if customers only order once (LTV = $22.25), the business is fundamentally unprofitable.
Break-Even Order Volume
Your feasibility study should calculate the monthly order volume needed to cover all costs:
Fixed Costs: Platform subscriptions, warehouse/storage, insurance, software tools, and staff. Even a lean e-commerce operation has $2,000–$5,000/month in fixed costs. A business with a warehouse and employees could have $15,000–$30,000+. Break-Even Orders = Monthly Fixed Costs ÷ (Gross Margin per Order − Variable Marketing Cost per Order)If fixed costs are $5,000/month, gross margin per order is $22.25, and marketing cost per order is $12:
Break-even = $5,000 ÷ ($22.25 − $12) = 488 orders/month or about 16 orders/day
Your feasibility study should assess whether 16 daily orders is achievable given your marketing budget, conversion rates, and market size.
Scaling Scenarios
E-commerce businesses have both economies and diseconomies of scale. The feasibility study should model what happens at 2x, 5x, and 10x the initial volume:
Improves with scale: Supplier discounts on larger orders, fixed cost dilution, brand recognition reducing CAC. Worsens with scale: Need for warehouse space, additional staff, inventory management complexity, customer service volume, cash tied up in inventory.The sensitivity analysis should test: What if conversion rates are 1.5% instead of 3%? What if average order value is $35 instead of $50? What if returns run at 15% instead of 10%? What if CAC increases by 30% due to competition?
The Bottom Line
E-commerce feasibility comes down to a simple chain: Can you source products at a margin that supports the cost of acquiring customers through digital channels, while fulfilling orders efficiently enough to retain a profit? If any link in that chain breaks — margins too thin, CAC too high, fulfilment too expensive, returns too frequent — the business isn't viable.
SimpleFeasibility generates e-commerce feasibility studies with product margin analysis, CAC/LTV modelling, break-even calculations, multi-year projections with NPV/IRR, and interactive What-If scenarios to test pricing and scaling strategies. Validate Your E-Commerce Idea →Related Articles: