Copyright infringement can happen behind your back. In many cases, creators only discover that their work has been used without permission years after infringement first occurred. That is where the discovery rule comes in. The discovery rule extends the time to file a copyright infringement lawsuit. However, it also raises one important question: How far back can you recover damages? Understanding how the discovery rule works is essential to knowing when you can sue and what you may actually recover.

What Is the Discovery Rule?

Under the Copyright Act of 1976, infringement claims must generally be filed within three years of when the claim accrues. However, courts may adopt a flexible approach in some cases. By applying the discovery rule, the three-year clock does not start until the copyright owner discovers, or reasonably should have discovered, the infringement.

For example, if your work was used without permission in 2021, but you only discovered it in 2025, and you have reasonably been monitoring your rights, under the discovery rule, your claim may still be timely if filed within three years of that discovery date.

How the Discovery Rule Affects Recovery

Oftentimes, when you bring forth a copyright infringement claim, you may be seeking damages. But how much can you recover once your claim is allowed to proceed? This is an issue that courts have wrestled with: whether recovery should be limited to the three years before filing the lawsuit, or whether you can recover damages for the entire period of infringement, even if it stretches further than three years back.

A notable case involving Music Specialist Inc. and its owner, Sherman Nealy, v. Warner Chappell Music, Inc, Atlantic Recording Corporation, and Artist Publishing Group addresses this issue. The plaintiffs alleged that their copyrighted works had been used without proper authorization eight years before they discovered infringement. The Eleventh Circuit Court of Appeals held that if a claim is timely under the discovery rule, a plaintiff may recover damages for the full period of infringement, not just the three years prior to filing the lawsuit. This is based on how the Copyright Act is structured. While the statute of limitations governs when a lawsuit must be filed, a separate provision states what damages can be recovered—and that damages provision does not expressly limit recovery to a three-year period.

It’s worth noting that while the discovery rule can extend the timeline, this does not mean you should not monitor how your work is used. Courts still expect copyright owners to exercise reasonable diligence in protecting their work. If you had access to information that would have revealed infringement earlier but failed to act, the discovery rule may not apply. You cannot ignore signs of infringement and later assume that the discovery rule will save your claim.

Whether you are pursuing a claim or defending one, timing and recovery are essential elements to consider. Working with an experienced copyright litigation attorney can help determine applicable timelines and protect your interests.

Contact the Copyright Attorneys at Revision Legal

For more information, contact the experienced Copyright Lawyers at Revision Legal. You can contact us through the form on this page or call (855) 473-8474.