This post is about buying an online business — a company whose operations live entirely on the internet, like a SaaS product, a Shopify store, or a mobile app — and the specific things worth checking that don't come up with a traditional physical business.

This is a different question from buying a business online, which is about using internet marketplaces as a channel to find any business for sale. Here, the business itself is the online asset.

What Makes an Online Business Different to Evaluate?

There's no storefront, no equipment, and often no employees beyond the founder — the value sits almost entirely in code, content, customer relationships, and traffic sources. That means due diligence shifts toward things like platform dependency, churn rate, and how easily the business actually transfers to a new owner without breaking. This is a growing category to understand: according to the U.S. Census Bureau's Quarterly Retail E-Commerce Report, online sales reached 16.9% of total U.S. retail sales in the first quarter of 2026, up from 15.9% a year earlier — a steadily growing share of the buyer pool now looking specifically at digital businesses.

What Should You Check for a SaaS Business?

  • Monthly recurring revenue (MRR) and churn — a business with high churn is worth less than the same MRR with strong retention, since you're constantly replacing lost customers just to stay flat.
  • Customer concentration — a handful of large accounts driving most of the revenue is a real risk if even one doesn't renew after the sale.
  • Codebase and technical debt — ask for a technical review if you're not equipped to evaluate this yourself; inheriting a fragile codebase is a hidden cost.

What Should You Check for a Shopify or E-Commerce Store?

  • Supplier relationships and terms — confirm they transfer to you and aren't personally tied to the current owner's relationship with the supplier.
  • Ad account health and traffic sources — a store dependent on one ad platform or a single traffic source is more fragile than one with diversified acquisition channels.
  • Inventory and fulfillment — understand what you're actually taking on, especially if inventory is held rather than drop-shipped.

What Should You Check for an App?

Download and retention trends over time, not just a snapshot; reliance on a single app store's algorithm or featuring for traffic; and how much of the user base came from paid acquisition versus organic growth, since paid-acquired users are more expensive to replace if that spend stops.

How Do You Value an Online Business?

SaaS businesses often sell on a multiple of annual recurring revenue, commonly 2.5x to 4x for profitable, growing businesses, rather than the SDE multiples used for most physical small businesses — see our guide to business valuation multiples by industry for how physical-business multiples compare. E-commerce stores and apps are more often valued on SDE, similar to a traditional small business, since they typically have more conventional profit-and-loss structures.

Financing an online business acquisition is generally harder than a physical business, since lenders are less comfortable without hard collateral — larger down payments or seller financing are common here. If you're evaluating an online business and want help thinking through the specific risks, get in touch with Silver Surf.

FAQ

1. What's the difference between buying a business online and buying an online business?

Buying a business online refers to the channel — using an internet marketplace to find any business for sale. Buying an online business means the business itself, like a SaaS product or e-commerce store, operates entirely on the internet.

2. What multiple do SaaS businesses sell for?

Profitable SaaS businesses often sell in the 2.5x to 4x annual revenue range, or a multiple of monthly recurring revenue, though this varies significantly with growth rate, churn, and profitability.

3. Is buying a Shopify store a good way to start with e-commerce?

It can be, since you're acquiring existing traffic, reviews, and sales history rather than starting from zero — but supplier relationships and ad account health need the same scrutiny as the financials.

4. Can I get an SBA loan to buy an online business?

Sometimes, though it's harder than financing a traditional business — lenders are often less comfortable with the lack of hard collateral, which means larger down payments or seller financing are more common in this category.