E-commerce Contracts: Terms of Sale, Vendor Agreements, and Drop-shipping

Selling products online without proper contracts is one of the most expensive mistakes an e-commerce business can make. A single supplier dispute, a chargeback wave from unclear return policies, or a drop-shipping partner who disappears mid-fulfillment — any of these can cost thousands and damage customer trust overnight.

Yet most online sellers operate with little more than a handshake agreement with their suppliers and a copy-paste terms page on their website. The result: when disputes arise, there is no enforceable framework to resolve them.

This guide covers the essential contracts every e-commerce business needs, what each should contain, and how to build them correctly from the start.

Why e-commerce contracts are different

E-commerce contracts face challenges that traditional retail agreements do not:

• Multi-jurisdictional exposure. Your customers, suppliers, and fulfillment partners may be in different states or countries. Each jurisdiction has its own consumer protection laws, tax obligations, and contract enforcement rules.
• Speed of transactions. Thousands of orders can flow through your store in a single day. Your contracts need to work at scale — not just for one transaction, but for every transaction.
• Third-party dependencies. Drop-shippers, payment processors, logistics providers, and marketplace platforms all sit between you and your customer. Each relationship needs contractual clarity.
• Digital product complexity. If you sell digital goods, subscriptions, or SaaS products alongside physical goods, your terms of sale need to account for different delivery, refund, and intellectual property frameworks.

Without contracts that address these specifics, you inherit all the risk and retain none of the protection.

Terms of sale: the customer-facing contract

Your terms of sale (sometimes called terms and conditions of purchase) are the contract between your business and every customer who buys from you. They define what happens when someone places an order — pricing, delivery, returns, liability, and dispute resolution.

What to include

Order acceptance and pricing. State when a binding contract is formed. Is it when the customer clicks "Buy," when you confirm the order, or when you ship? This distinction matters — it determines when you are legally obligated to fulfill. Also address pricing errors: reserve the right to cancel orders placed at incorrect prices.

Shipping and delivery terms. Define estimated delivery windows, responsibility for shipping costs, risk of loss during transit (when does ownership transfer to the buyer?), and what happens when deliveries fail. Reference specific carriers and tracking requirements.

Return and refund policy. Be specific about the return window (14 days, 30 days), condition requirements (unused, original packaging), who pays return shipping, and the refund timeline. Vague return policies are the leading cause of e-commerce chargebacks.

Limitation of liability. Cap your liability to the purchase price of the product. Without this, a $50 product could generate a $50,000 lawsuit for consequential damages.

Governing law and disputes. Specify which jurisdiction's laws apply and the dispute resolution process. For e-commerce, consider including a mandatory arbitration clause to avoid costly litigation across multiple jurisdictions.

Warranty disclaimers. If you sell products "as-is" or with limited warranties, state this explicitly. Consumer protection laws in many jurisdictions impose implied warranties — your terms need to work within those legal requirements, not against them.

Common mistakes

1. Copy-pasting terms from another site. Those terms were written for a different business, different products, and potentially a different jurisdiction. They will not protect you.
2. Burying the refund policy. Courts and payment processors look at whether customers had reasonable notice of your policies. A refund policy hidden in page 12 of your terms is weak protection.
3. Ignoring digital goods. If you sell downloads, courses, or subscriptions, your terms must address digital delivery, access revocation, and the fact that digital goods typically cannot be "returned."

Create a service agreement →

Vendor agreements: protecting the supply chain

A vendor agreement (also called a supplier agreement) is the contract between your e-commerce business and the companies that provide your products. Whether you buy inventory wholesale, source custom-manufactured goods, or license products for resale, this agreement defines the commercial relationship.

Essential clauses

Pricing and payment terms. Lock in pricing for a defined period. Include provisions for price adjustments — can the vendor raise prices mid-contract? How much notice is required? Define payment terms (net 30, net 60), accepted payment methods, and consequences of late payment.

Quality standards and inspection rights. Define acceptable quality levels (AQL), your right to inspect goods before or after delivery, and the process for rejecting defective products. For e-commerce, this is critical — you cannot inspect every unit before it ships to a customer. Your contract should allocate liability for defective products that reach end customers.

Delivery and lead times. Specify delivery schedules, minimum and maximum order quantities, lead times for reorders, and penalties for late delivery. Late shipments in e-commerce directly translate to cancelled orders, negative reviews, and chargebacks.

Indemnification. The vendor should indemnify your business against claims arising from product defects, IP infringement, or regulatory non-compliance of their products. Without this clause, your business bears the legal and financial risk for problems originating with the vendor.

Exclusivity and territory. If you negotiate exclusive distribution rights for certain products or regions, document them explicitly. Conversely, if the vendor can sell to your competitors, understand and accept that before signing.

Termination and transition. Define how either party can end the relationship — notice periods, remaining inventory obligations, return of materials, and transition support. A 90-day notice period is standard for established vendor relationships.

Vendor agreement red flags

• The vendor insists on verbal agreements for pricing changes
• No quality guarantee or inspection rights
• Automatic renewal without notice provisions
• No force majeure clause (especially relevant post-pandemic for supply chain disruptions)
• Vendor retains the right to change specifications without approval

Drop-shipping agreements: when you never touch the product

Drop-shipping adds a layer of complexity because you sell products you never physically handle. The drop-shipper manufactures or warehouses the product, ships it directly to your customer, and you take a margin on the sale. This model works — but only with a contract that clearly allocates responsibilities.

What makes drop-shipping contracts unique

You are the merchant of record. Your customer bought from you, not from your drop-shipper. When something goes wrong — late delivery, wrong product, defective item — the customer comes to you. Your contract with the drop-shipper must give you recourse to recover those costs.

Inventory visibility. Drop-shipping fails when you sell products that are out of stock with your supplier. Your agreement should require real-time or daily inventory updates and define what happens when a customer orders an out-of-stock item. Who notifies the customer? Who processes the refund?

Branding and packaging. If you want products shipped in your branded packaging (or at least without the supplier's branding), specify this contractually. Many drop-shippers default to generic or supplier-branded packaging, which undermines your brand.

Critical drop-shipping clauses

1. Product pricing and margin protection. Lock in wholesale pricing and define how price changes are communicated. Your margins depend on predictable costs.
2. Shipping SLAs. Define maximum processing times (e.g., "shipped within 2 business days of order receipt"), approved carriers, and tracking requirements.
3. Return handling. Who receives returns — you or the supplier? Who bears the cost of return shipping? How are refunds processed? This is the single most disputed area in drop-shipping relationships.
4. Product liability allocation. If a product injures a customer or fails to meet regulatory requirements, your contract must clearly state that the manufacturer/supplier bears primary liability and indemnifies your business.
5. Intellectual property rights. Your use of the supplier's product images, descriptions, and branding should be explicitly licensed. Conversely, protect your brand assets from unauthorized use by the supplier.
6. Data handling. Your drop-shipper receives customer names and shipping addresses. Your contract should restrict their use of this data — they should not market directly to your customers.

Create a custom contract →

Marketplace seller agreements: platform-specific considerations

If you sell on Amazon, Shopify, Etsy, eBay, or similar platforms, the platform provides its own seller agreement. But these agreements are designed to protect the platform, not your business.

What platforms cover (and what they do not)

Platforms typically cover:

• Transaction processing and fee structures
• Dispute resolution between you and the platform
• Platform usage rules and listing requirements
• Basic buyer protection policies

Platforms do not cover:

• Your agreements with suppliers and vendors
• Product liability beyond what the platform insurance covers
• Your intellectual property protections
• Tax compliance in specific jurisdictions
• Relationships with fulfillment partners outside the platform

Supplementary contracts you need

Even as a marketplace seller, you need:

• Vendor agreements with every supplier (covered above)
• Your own terms of sale for your direct website (if you sell multi-channel)
• Consignment agreements if you stock inventory from other brands
• Fulfillment service agreements if you use third-party logistics (3PL) providers
• NDA agreements with suppliers if you share product designs, pricing strategies, or customer data

Building your e-commerce contract stack

The contracts you need depend on your business model:

Direct-to-consumer (own website)

• Terms of sale / terms and conditions
• Privacy policy
• Vendor or supplier agreements
• Return and refund policy (standalone document)
• Shipping policy

Drop-shipping model

All of the above, plus:

• Drop-shipping agreement with each supplier
• Product liability allocation agreement

Marketplace seller

All of the above (for your own channels), plus:

• Platform-specific compliance documentation
• Multi-channel inventory management terms (if applicable)

Wholesale / B2B e-commerce

• Master supply agreement
• Scope of work for custom orders
• Volume pricing and minimum order agreements
• Credit terms and payment security

Getting started

Building your e-commerce contract stack does not require a legal team. Start with the contracts that protect your highest-risk relationships:

1. Terms of sale — protects every customer transaction
2. Primary vendor agreement — protects your supply chain
3. Drop-shipping agreement — if applicable to your model

Each contract should be jurisdiction-aware, reflecting the laws where your business operates and where your customers are located.

Create a service agreement → | Create an NDA → | Create a custom contract →