diff --git a/app/templates/views/email-branding/manage-branding.html b/app/templates/views/email-branding/manage-branding.html
index 544abb09f..dad8e212d 100644
--- a/app/templates/views/email-branding/manage-branding.html
+++ b/app/templates/views/email-branding/manage-branding.html
@@ -19,6 +19,9 @@
           <img src="https://{{ cdn_url }}/{{ logo }}"/>
         </div>
       {% endif %}
+      <p>
+        Logos should be PNG files, 108px high
+      </p>
       {{ file_upload(form.file, button_text='{} logo'.format('Update' if email_branding else 'Upload')) }}
       {% call form_wrapper() %}
         <div class="form-group">
diff --git a/app/templates/views/letter-branding/manage-letter-branding.html b/app/templates/views/letter-branding/manage-letter-branding.html
index 0bde542b6..1dd6c7b8a 100644
--- a/app/templates/views/letter-branding/manage-letter-branding.html
+++ b/app/templates/views/letter-branding/manage-letter-branding.html
@@ -18,6 +18,9 @@
           <img src="https://{{ cdn_url }}/{{ logo }}"/>
         </div>
       {% endif %}
+      <p>
+        Logos should be SVG files, cropped to artwork bounds and with all fonts outlined.
+      </p>
       {{ file_upload(file_upload_form.file, button_text='{} logo'.format('Update' if is_update else 'Upload')) }}
       {% call form_wrapper() %}
         <div class="form-group">