How to Evaluate an E-commerce Business for Sale
E-commerce businesses are increasingly available for acquisition — but they come with risks that don't appear in the P&L. Traffic concentration, supplier dependency, and platform risk can collapse revenue overnight.
E-commerce acquisitions have grown significantly in the past five years. Online businesses are increasingly listed on mainstream marketplaces and attract buyers who want geographic flexibility, lower physical overhead, and — in the best cases — higher margins than bricks-and-mortar alternatives.
But e-commerce businesses also carry risks that are genuinely different from traditional businesses — and that don't show up in the profit and loss statement until it's too late. Traffic that disappears overnight due to a Google algorithm update. A supplier who raises prices or removes exclusivity. A product that a competitor undercuts by 30% on Amazon. A Shopify or Amazon Seller Central account that gets suspended.
Evaluating an e-commerce business requires the standard financial framework plus a set of digital-specific checks. This guide covers both.
Start With the Standard Financial Tests
Acquisition multiple: E-commerce businesses typically trade at 3–5x annual SDE for businesses with $100K–$500K in earnings. Businesses with strong recurring revenue (subscriptions, replenishment products), proprietary brands, or clear growth trajectories can trade higher. Check the e-commerce industry benchmark for current ranges.
DSCR: Run the debt service test at your asking price. E-commerce businesses often have seasonal revenue patterns — ensure the DSCR test uses normalised annual earnings, not a seasonal high.
Net margin: Healthy e-commerce net margins range from 15–30% for product businesses, higher for information products or software. Below 10% is tight and warrants scrutiny of the cost structure — often driven by ad spend that the seller is using to inflate revenue ahead of a sale.
Earnings trend: Three years of financials is the minimum. One-year earnings are not enough for any e-commerce business — algorithm changes, ad cost inflation, and competitive dynamics can make any year look anomalous in either direction.
E-commerce Check 1: Traffic Sources and Concentration
Traffic is the lifeblood of an e-commerce business. The source of that traffic determines how reliable and transferable it is.
What to request:
- Google Analytics access (or equivalent) for at least 24 months
- Traffic breakdown by channel: organic search (SEO), paid search (Google/Meta ads), email, social, direct, referral
What you're looking for:
Organic search dependency: If 60%+ of revenue comes from organic search (Google SEO), the business is vulnerable to algorithm updates. Google's core updates have wiped out significant organic traffic for e-commerce sites overnight. This isn't a dealbreaker — organic traffic is valuable — but it means the business carries platform risk. Ask when the last major traffic drop occurred and how quickly it recovered.
Paid traffic dependency: If the seller is running significant paid advertising (Meta, Google Ads) to drive revenue, establish what percentage of revenue is attributable to ads, what the ROAS (return on ad spend) is, and — critically — what revenue looks like when the ad spend is paused. Some e-commerce businesses cannot sustain revenue without continuous ad investment. The SDE should be calculated after ad spend, not before.
Email list: A large, engaged email list is a valuable owned channel that transfers with the business. Ask for the list size, open rate, and what percentage of revenue comes from email campaigns.
Amazon dependency: If a significant portion of sales occur on Amazon, the business is subject to Amazon's rules, fees, and account suspension risk. Amazon can suspend a seller account without warning for policy violations — including violations by a previous owner that the new owner inherits. Request a full account health report before proceeding.
E-commerce Check 2: Supplier and Inventory Risk
Supplier concentration: Does the business rely on a single supplier or manufacturer for its core products? If that supplier raises prices, stops supplying, or gives exclusivity to a competitor, the business's product offering and margins change materially. Ask for the supplier list and the percentage of COGS sourced from each.
Exclusivity agreements: Does the business have any exclusive product agreements with suppliers? Are those agreements in writing, and do they transfer to a new owner?
Inventory levels: What is the current inventory value, and is it included in the asking price? Excess inventory can hide slow-moving stock that will need to be discounted. Insufficient inventory can constrain growth. Request a breakdown of inventory by SKU and age.
Lead times and supply chain: What are the lead times from order to delivery for restocking? Businesses relying on overseas manufacturing (China, Southeast Asia) typically have 60–120 day lead times, meaning inventory planning is critical. Supply chain disruptions — shipping delays, tariff changes — can create stockouts that devastate revenue.
E-commerce Check 3: Platform and Account Risk
Shopify / WooCommerce / other platform: The storefront platform is usually straightforward to transfer. Check there are no custom integrations or apps that require specific developer knowledge to maintain.
Amazon Seller Central: As noted above, Amazon account health is critical. Request:
- Account health dashboard screenshot (Policy Compliance, Product Condition Violation, Shipping Performance, Customer Service Performance)
- Any previous warnings, policy violations, or suspensions
- Current product review ratings and velocity
Payment processor: Stripe, PayPal, and similar payment processors can freeze accounts for suspicious activity or high chargeback rates. Ask for the chargeback rate and any payment processor warnings in the past 24 months.
Domain and hosting: Who owns the domain? Is it registered in the business name or the individual owner's name? Domain transfer must be explicitly addressed in the sale agreement.
E-commerce Check 4: Brand Strength and Defensibility
The most valuable e-commerce businesses are those with genuine brand equity — customers who search for the brand by name, return for repeat purchases, and recommend to others. The least defensible are dropshipping businesses with no proprietary product and no brand differentiation.
Signals of strong brand:
- High percentage of direct traffic (customers typing the URL directly)
- Strong repeat purchase rate (ask for the percentage of revenue from returning customers)
- Genuine customer reviews on third-party platforms (not just on-site)
- Registered trademarks on brand name and key product names
- Proprietary product formulation, design, or manufacturing
Signals of weak defensibility:
- Products identical to competitors with lower margins (race to the bottom pricing)
- No customer email list or social following
- Revenue entirely dependent on ad spend
- Dropshipping model with no inventory ownership and no supplier exclusivity
E-commerce Check 5: Owner's Role and Transferability
Some e-commerce businesses run with minimal owner involvement — automated email sequences, virtual assistants, and fulfilment centres handle most operations. These are highly transferable. Others depend entirely on the founder's marketing creativity, supplier relationships, or technical skills.
Questions to establish:
- How many hours per week does the owner spend on the business?
- What tasks does the owner personally handle that a new owner must learn or hire for?
- Are there VAs or contractors, and will they stay with a new owner?
- Is there documentation for core processes (product sourcing, customer service, ad management)?
The ideal: A business where the owner spends under 10 hours per week, uses a fulfilment centre, has a VA handling customer service, and has documented processes for each function. The worst case: the owner spends 60 hours per week, manages all supplier relationships personally, writes all marketing copy, and has no documentation.
Red Flags Specific to E-commerce
- Revenue spiking in the 6–12 months before sale — common signal of ad spend inflation ahead of exit
- No access to Google Analytics or ad platform data — a seller who won't provide traffic data is hiding something
- Amazon account with recent policy violations — these can result in account suspension that takes months to resolve
- All-in revenue on a single product — one competitor, one manufacturer change, or one viral negative review can eliminate the business
- ROAS below 2x on ad spend — the ads are barely paying for themselves and the SDE calculation is flattering
- No trademark on brand name or key products — competitors can duplicate the brand identity without legal recourse
How to Score an E-commerce Listing
Apply the standard 6-step business evaluation framework — multiple, DSCR, financial quality, earnings trend, risk, owner dependency — then layer the e-commerce-specific checks above.
BizBuyScore benchmarks e-commerce businesses against the e-commerce/online retail industry category. Enter the financials, get a score in under two minutes, then use the checklist above for the digital-specific risks the score doesn't surface.
Score any e-commerce listing with BizBuyScore free. Industry-benchmarked scoring across margins, valuation multiple, DSCR, and deal flags — in under two minutes.
General information only
This article contains general financial information and is not financial advice, investment advice, or a recommendation to buy or sell any business or security. It does not take into account your individual circumstances. Before acting on any information in this article, consider seeking independent professional advice. BizBuyScore Pty Ltd is not a licensed financial adviser. Full terms →
Get the SMB Acquisition Due Diligence Checklist
A free PDF checklist covering financials, legal, operations, and key risk areas. Used by 500+ acquisition buyers.
No spam. Unsubscribe anytime.
Put this into practice.
Use the free BAS calculator to score any acquisition - no sign-up required.