Buying an existing e-commerce business can look like a shortcut to an established brand, a proven customer base, and immediate revenue. But what you are actually buying is a bundle of legal assets and obligations — trademarks, copyrights, domain names, software licenses, customer data, supplier contracts, and platform accounts — and if any of those assets are defective, encumbered, or not actually transferable, the business may be worth far less than the purchase price. Thorough legal due diligence before closing is how you find out what you are actually getting.

Start With Intellectual Property

Intellectual property is often the most valuable — and most legally complex — component of an e-commerce business acquisition. Before signing anything, identify every piece of IP included in the transaction and verify that the seller actually owns it and can transfer it to you.

Trademarks. Run a USPTO trademark search on the business name, logo, and any product names that form part of the brand. Confirm that any registered marks are in good standing, that maintenance filings and renewals have been filed on time under 15 U.S.C. § 1058, and that there are no pending opposition proceedings, cancellation actions, or third-party infringement claims. An unregistered mark may still have common law rights in specific geographic markets, but those rights are narrower and harder to enforce.

Copyrighted content. Website copy, product photography, graphics, videos, and marketing materials are all protectable under 17 U.S.C. § 102. The key question is who created the content and whether the seller obtained rights that can actually be transferred. Under 17 U.S.C. § 101, a work is “made for hire” — and owned by the party who commissioned it — only if it was created by an employee within the scope of employment, or if it was created by an independent contractor under a written work-for-hire agreement covering one of the statutory categories. Content created by freelancers without a written work-for-hire agreement generally belongs to the freelancer, not the business that paid for it. This is one of the most common IP defects in e-commerce acquisitions.

Domain names and online identifiers. Confirm that the domain name is registered to the seller, not to a third-party registrar, developer, or agency. Check registration and expiration dates, verify that the domain can be transferred without restrictions, and look for any domain dispute history through ICANN’s UDRP database. Also identify any social media handles, YouTube channels, or other online identifiers that are part of the business — and check whether those platforms’ terms of service permit account transfers.

Scrutinize Software and Technology Rights

If the business relies on custom-built software, proprietary plugins, a bespoke platform, or any technology developed by a third party, the ownership question is critically important. The seller may have a license to use software without owning the underlying intellectual property — meaning the business cannot transfer the software to you as an asset.

Review every development agreement, software license, SaaS subscription, and technology contract associated with the business. For custom-developed code, confirm whether the agreement provided the seller with full ownership of the work product or merely a license to use it. If the code was developed by an agency or contractor under an agreement that did not include an IP assignment or work-for-hire provision, the developer likely still owns the copyright. In that scenario, either the sale needs to include an IP assignment from the developer, or the business’s technology stack needs to be rebuilt after closing — an expense that should be reflected in the purchase price.

Also review platform dependencies. An e-commerce business built entirely on a single platform (Shopify, WooCommerce, Amazon) may have significant operational risk tied to that platform’s terms of service, fee structures, and account status. Confirm that seller accounts in good standing and that there are no outstanding violations or suspension risks before the transaction closes.

Customer Data Requires Its Own Due Diligence

E-commerce businesses accumulate substantial personal information — names, email addresses, purchase histories, payment data, and behavioral data. That data has value, but it also comes with legal obligations that transfer with the business.

Review the seller’s privacy policies, terms of service, and data handling practices before closing. The privacy policy describes what the business told customers about how their data would be used — and those representations may constrain how you can use the data after the acquisition. Under California’s CCPA/CPRA, businesses must generally notify consumers of any material change in data practices, and some changes in data use after an acquisition may require consumer opt-in.

Ask directly whether the business has experienced any data breaches or security incidents. Most states have data breach notification laws that require notification to affected consumers and often to state attorneys general. An undisclosed breach that comes to light after closing can generate substantial liability — regulatory fines, class action exposure, and remediation costs — that was not reflected in the purchase price.

Also review the business’s payment data handling. If the business processes credit card transactions, confirm PCI DSS compliance status and whether there are any outstanding chargebacks, fraud flags, or payment processor disputes that could affect the business’s ability to continue processing payments post-acquisition.

Review Every Contract for Assignment Restrictions

Most of the contracts supporting an e-commerce business — supplier agreements, platform agreements, technology licenses, affiliate agreements, fulfillment contracts — contain provisions that restrict assignment or require the other party’s consent when ownership of the contracting entity changes. An asset purchase triggers these provisions; a stock purchase may or may not, depending on the contract language and whether the transaction is structured as a change of control.

Before closing, identify every material contract and determine whether it can be assigned, requires counterparty consent to assign, or terminates automatically upon a change of ownership. A supplier agreement you assumed would transfer may require the supplier’s approval — and the supplier may use that opportunity to renegotiate pricing or terms. An exclusive distribution agreement may have a change-of-control clause that voids the exclusivity. Technology licenses, in particular, often contain anti-assignment provisions that are easy to miss but create significant operational risk after closing.

An experienced e-commerce attorney should review all material contracts before closing, identify assignment restrictions, and either secure the necessary consents or advise on how to structure the transaction to minimize the risk of contract termination post-close.

Representations, Warranties, and Indemnification

The sale agreement itself should include robust representations and warranties from the seller covering IP ownership, the absence of undisclosed liens or encumbrances, accuracy of financial statements, compliance with applicable law, and the absence of pending or threatened litigation. These provisions, combined with an indemnification clause that requires the seller to hold you harmless from pre-closing liabilities, are your primary contractual protection if problems emerge after the transaction closes.

In transactions where the seller’s representations are difficult to verify independently — such as when the business has informal records, undocumented practices, or complex supplier relationships — escrow arrangements, purchase price holdbacks, or representations and warranties insurance may be appropriate mechanisms to protect the buyer from post-closing surprises.

Contact the E-Commerce Attorneys at Revision Legal

If you are considering acquiring an existing e-commerce business, the experienced e-commerce attorneys at Revision Legal can conduct legal due diligence on the transaction, review the sale agreement, and help you structure the acquisition to protect your interests. Contact us through the form on this page or call (855) 473-8474.