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Buying an established e-commerce business can save years of work compared with starting from zero.
But an established business also comes with history.
That history needs to be understood before money changes hands.
This is why due diligence is one of the most important stages of an e-commerce acquisition.
1. Financial Due Diligence
Start with the numbers.
Review:
Monthly revenue
Gross profit
Net profit
Operating expenses
Cost of goods
Advertising
Amazon or marketplace fees
Shipping
Storage
Refunds
Payroll
Software
Don't rely only on screenshots.
Where possible, verify figures against underlying reports, payment records and financial statements.
2. Sales History
Look at performance over time.
A business showing $100,000 in sales last month tells you very little by itself.
Review at least 12 months of performance where possible.
Look for:
Growth
Decline
Seasonality
Sales spikes
Product launches
Advertising changes
Marketplace changes
Understanding the trend is often more useful than looking at one month.
3. Product Analysis
Review every major product.
Consider:
Revenue
Profit
Reviews
Ratings
Sales rank
Competition
Product differentiation
Product lifecycle
Return rate
Then ask:
What percentage of total revenue comes from the top product?
Concentration can be an important risk factor.
4. Supplier Due Diligence
Understand where the products come from.
Review:
Supplier identity
Location
Manufacturing capability
MOQ
Lead time
Payment terms
Quality control
Product specifications
Alternative suppliers
The buyer should understand whether supplier relationships can continue after the acquisition.
5. Inventory
Verify inventory carefully.
Review:
FBA inventory
Warehouse inventory
3PL inventory
Inbound shipments
Inventory age
Landed cost
Damaged inventory
Unsellable inventory
Slow-moving inventory
Inventory that looks valuable on paper may not have the same value in reality.
6. Advertising
Analyse every important advertising channel.
For Amazon:
PPC spend
ACOS
TACOS
Sponsored Products
Sponsored Brands
Sponsored Display
Organic sales
Search terms
Conversion rates
For Shopify or other channels, examine the corresponding acquisition costs.
The objective is to understand how the business generates customers.
7. Marketplace Account Health
If you are acquiring a marketplace business, account history matters.
Review:
Policy violations
Intellectual property complaints
Product authenticity issues
Customer complaints
Listing restrictions
Suspensions
Account health
Don't assume that an account with strong sales today has no historical risks.
8. Intellectual Property
Confirm ownership of:
Trademarks
Domains
Logos
Product photography
Packaging
Product designs
Copyrighted materials
Make sure you understand exactly which intellectual property is included in the transaction.
9. Website and Digital Assets
For businesses operating outside Amazon, inspect:
Website
Domain
Analytics
SEO
Organic traffic
Email marketing
Social media
Customer acquisition channels
A business receiving significant traffic from Google, for example, should have its organic traffic history reviewed rather than relying on the current snapshot.
10. Operations
Ask how the business actually works.
Who handles:
Customer service?
Inventory?
PPC?
Supplier communication?
Product development?
Order management?
Finance?
Logistics?
If everything depends on the owner, the transition may be more complicated than expected.
11. Legal and Compliance
Depending on the transaction, buyers may need to review:
Company ownership
Contracts
Trademarks
Supplier agreements
Marketplace agreements
Disputes
Regulatory requirements
Product compliance
Professional legal and financial advice may be appropriate for significant acquisitions.
12. Future Opportunities
Due diligence isn't only about finding problems.
Look for opportunities.
Could the business:
Launch new products?
Expand internationally?
Improve PPC?
Improve conversion?
Increase organic traffic?
Enter another marketplace?
Improve margins?
Build a direct-to-consumer channel?
Sometimes the biggest value in an acquisition is what the next owner can do with an already-established foundation.
Final Checklist
Before buying an e-commerce business, make sure you understand:
Financials
Revenue, profit, expenses and cash flow.
Products
Margins, reviews, competition and concentration.
Suppliers
Costs, terms, capacity and alternatives.
Inventory
Quantity, value, age and location.
Advertising
Spend, efficiency and dependency.
Marketplace accounts
History, health and potential restrictions.
Intellectual property
Trademarks, domains, creative assets and ownership.
Operations
People, systems and SOPs.
Legal matters
Contracts, disputes and compliance.
Growth opportunities
Products, markets, channels and operational improvements.
Final Thoughts
The purpose of due diligence isn't to make an acquisition unnecessarily complicated.
It is to replace assumptions with evidence.
The more clearly a buyer understands the business before completing a transaction, the better prepared they are to take ownership and operate it successfully.
At The2Sellers, we believe an e-commerce business should be evaluated as a real business—not simply as a collection of sales screenshots.
Explore established e-commerce opportunities through The2Sellers.