How to Send a Cease and Desist Letter for Trademark Infringement

October 7, 2026

You've spotted another business using a name or logo that looks a lot like yours. Customers may be confused, sales may be diverted, and your brand's reputation is now partly in someone else's hands. A trademark cease and desist letter is often the first, and most cost-effective, step to stop infringement. But sending one carelessly can backfire. Here's how to do it right.

Step 1: Confirm Your Rights Before You Send Anything

A demand letter is only as strong as the rights behind it. Before sending, confirm:

• Ownership. Who actually owns the mark: you personally, your LLC, or another entity? Registrations and evidence should line up with the sender of the letter.
• Registration. A federal registration provides a legal presumption of ownership and validity and nationwide rights. A Florida registration under Chapter 495 provides state-level remedies. Unregistered marks can still be enforced under the Lanham Act's unfair competition provision (15 U.S.C. § 1125(a)) and common law, but you'll need to prove your rights and their geographic reach.
• Priority. Did you use or file first? If the other party has earlier use, even in a limited area, your letter could invite a counterclaim.
• Scope. Do the other party's goods or services actually overlap with yours or relate closely enough to cause confusion?

If you don't yet have a federal registration, consider filing now. See Why Trademark Registration Matters and our trademark application service.

Step 2: Investigate and Document the Infringement

Gather evidence before the other party has a chance to change anything:

• Screenshots of websites, marketplace listings, and social media, with dates and URLs
• Photos of products, packaging, signage, or advertising
• Test purchases and receipts, where appropriate
• Evidence of actual confusion: misdirected calls, emails, reviews, or customer comments
• Information about the other party: legal entity name (check Sunbiz for Florida companies), address, and any trademark filings

Evidence of actual confusion is not required to prove likelihood of confusion, but it is powerful when you have it.

Step 3: Evaluate the Strength of Your Claim

Courts look at factors like the similarity of the marks in appearance, sound, and meaning; the relatedness of the goods or services; the strength of your mark; the parties' marketing channels and customers; the infringer's intent; and actual confusion. A distinctive mark used on closely related goods presents a strong case. A descriptive mark in a crowded field presents a weaker one. Your strategy and tone should match the strength of your position.

Step 4: Decide What You Want

Define the outcome before drafting. Common goals:

• Complete cessation of use within a set period
• A phase-out period to sell through existing inventory
• Abandonment of the other party's trademark application, or a covenant not to register
• Transfer of an infringing domain name or social media handle
• A coexistence agreement with clear boundaries
• Accounting of profits or payment, where the infringement is willful or damaging

Step 5: Draft the Letter

An effective cease and desist letter typically includes:

1. Identification of your mark and rights, including registration numbers, first use dates, and the goods and services covered
2. Description of the infringing use, with specifics and, often, exhibits
3. Legal basis: likelihood of confusion and the applicable statutes
4. Specific demands with a reasonable deadline
5. Request for written confirmation of compliance
6. Professional tone. Firm but measured. Letters are often posted online or attached to court filings.

Risks to Consider Before Sending

• Declaratory judgment. A threatening letter can give the recipient grounds to file a lawsuit first, in a forum of their choosing, asking a court to declare that they don't infringe.
• Counterclaims. The recipient may challenge your registration, alleging, for example, non-use, abandonment, or their own priority.
• Reputational backlash. Aggressive letters to small businesses sometimes go viral and hurt the sender's brand more than the infringement did.
• Overreaching. Demanding more than your rights support undermines credibility and can create liability in some situations.

Alternatives and Complements to a Letter

• Marketplace complaints. Amazon, Etsy, eBay, and social platforms have IP reporting tools, and some work best with a registered trademark. See Amazon Brand Registry.
• USPTO proceedings. If the infringer has filed to register a confusingly similar mark, you may be able to oppose it after publication or petition to cancel a registration. See trademark opposition.
• Domain disputes. UDRP proceedings can address bad-faith domain registrations.
• Litigation. If the letter doesn't work, federal or state court remedies may include injunctions, profits, damages, and in exceptional cases attorney's fees under the Lanham Act. Florida law offers similar remedies for marks registered under Chapter 495.

Timing Matters

Don't sit on your rights. Long delays in enforcing a trademark can weaken your position, including through defenses like laches or acquiescence, and can let an infringer build up its own goodwill. Act promptly once you learn of a problem, even if the first step is a measured inquiry rather than a full demand.

Stay Ahead With Monitoring

Many infringement problems are easier to solve when caught early, ideally when a conflicting application is filed rather than after the other business has invested in its brand. Trademark monitoring alerts you to new filings and uses so you can act quickly.

On the Other Side?

If you received a letter instead, see Received a Trademark Cease and Desist Letter? What to Do Next.

The Bottom Line

A well-prepared cease and desist letter resolves many trademark disputes without litigation. The key is preparation: confirm your rights, document the infringement, define your goals, and match your tone to the strength of your case. We can evaluate the situation and draft and send the letter on your behalf.

This article is general information, not legal advice, and reading it does not create an attorney-client relationship. Every situation depends on its own facts, and no particular outcome can be guaranteed. Laws and government fees change; confirm current requirements before acting.