Reseller Authorisation Letter Template for the United States

A reseller authorization letter is a formal document that grants explicit permission for one business to sell another company's products or services. In the United States, it serves as evidence of a legitimate authorized reseller, distributor, or channel partner relationship. Whether you are a manufacturer expanding your distribution network or a business becoming an authorized dealer, this letter establishes the commercial relationship and gives partners a direct way to confirm your status.

When do you need this document?

You'll need this letter when establishing new distribution partnerships, responding to vendor verification requests, or meeting compliance requirements in regulated industries. Government contractors often require it to prove legitimate supplier relationships. Online marketplaces and e-commerce platforms may request an authorization letter before allowing you to list certain branded products, and they use it to answer buyer questions about whether a seller is genuine. Some brand owners run a formal authorized partner or authorized distributor policy (Microsoft's reseller program is one well-known example), and they expect a letter that names the specific product brand before a customer places an order. Financial institutions and business partners frequently ask for the document during due diligence to verify your authorized dealer status.

What should a reseller authorization letter include?

A clear letter helps partners, marketplaces, and end customers act on it without follow-up questions. Include the following:

• Parties. The manufacturer, brand owner, or provider granting the authorization and the reseller or distributor receiving it.
• Scope. The specific products, services, or brands the reseller is authorized to sell.
• Territory. The geographic area or channels the authorization covers.
• Validity. The start date and how long the authorization stays valid, plus any renewal terms so the reader knows the letter is still valid.
• Exclusivity. Whether the authorization is exclusive or non-exclusive.
• Trademark use. How the reseller may use the provider's brand names and logos.
• Contact. A named point of contact and details so a marketplace or customer can verify the letter directly.
• Signature. The letter author or authorized signatory, their title, and the date.

Keeping the letter current

Authorization is rarely a one-time task. Products get added, territories shift, and the named signatory or sales team can change, so review the letter on a set schedule and reissue it when any of those details move. A letter dated 2026 that still lists last year's product brand or a contact who has left will fail verification, so set a validity window and update the document before it lapses. Give your commercial team a single source they can point a marketplace or a new offer to when they need to prove status quickly.

Key legal considerations

Define the products or services covered, the territorial limits, and the duration up front. Pay careful attention to pricing provisions so the letter complies with antitrust rules, and avoid language that could be read as price-fixing or market allocation. Set out termination terms and intellectual property usage rights, and consider liability limitations and indemnification to protect both parties. State whether any minimum sales or performance standards apply. If you go on to formalize the wider relationship, this letter often sits alongside a fuller commercial agreement and, where sensitive information is shared, a non-disclosure agreement.

Legal requirements in the United States

Under US law, a reseller authorization letter must comply with federal antitrust regulations, particularly the Sherman Act and Clayton Act, which prohibit anti-competitive practices, so it should not restrict competition or create illegal market divisions. The Federal Trade Commission Act requires transparent and fair business practices, so avoid deceptive terms or hidden restrictions. State contract laws govern enforceability, with the Uniform Commercial Code applying to goods-based relationships. Some states have distributor protection laws that affect termination clauses and require good faith dealing. Because rules vary by state, confirm the requirements that apply to the territory the letter covers.