diff --git a/tock/tock/templates/hours/reports_list.html b/tock/tock/templates/hours/reports_list.html
index 0de6356f..34ad6c4e 100644
--- a/tock/tock/templates/hours/reports_list.html
+++ b/tock/tock/templates/hours/reports_list.html
@@ -10,6 +10,13 @@ <h1>Tock Reports</h1>
     <div class="grid-row grid-gap">
       <div class="grid-col-6">
       <h2>Regular Reports</h2>
+      <div class="usa-alert usa-alert--info usa-alert--slim">
+        <div class="usa-alert__body">
+          <p class="usa-alert__text">
+            Large reports may fail to download. Change the date range in the report URL to work around this limitation.
+          </p>
+        </div>
+      </div>
       <ul>
         <li>Complete timecard data:
           <a href="{% url 'reports:BulkTimecardList' %}?after={{starting_report_date|date:'Y-m-d'}}">All</a>