diff --git a/pinaxcon/templates/registrasion/invoice/details.html b/pinaxcon/templates/registrasion/invoice/details.html
index 886f514..c8f348a 100644
--- a/pinaxcon/templates/registrasion/invoice/details.html
+++ b/pinaxcon/templates/registrasion/invoice/details.html
@@ -1,4 +1,7 @@
 {% extends "registrasion/invoice/details_.html" %}
+
+{% load nbpy_tags %}
+
 {% comment %}
   Blocks that you can override:
 
@@ -32,12 +35,21 @@
   {% elif invoice.is_paid %}
     This is a confirmed registration summary for North Bay Python 2017.
   {% endif %}
+{% endblock %}
 
+{% block extra_line_items_after_total %}
+  {% donation_income invoice as donation %}
+  {% if donation %}
+    <tr>
+      <td colspan="3">Includes donation eligible for tax deduction in the USA:</td>
+      <td class="text-right">${{ donation }}</td>
+    </tr>
+  {% endif %}
 {% endblock %}
 
 {% block contact_info %}
   <p>Direct inquiries to <a href="mailto:spam@northbaypython.org">spam@northbaypython.org</a></p>
-  <p>North Bay Python is run by North Bay and Bay Area locals, as a member project of <a href="https://sfconservancy.org">Software Freedom Conservancy</a>, a 501(c)(3) public charity registered in New York.</p>
+  <p>North Bay Python is run by North Bay and Bay Area locals, as a member project of <a href="https://sfconservancy.org">Software Freedom Conservancy</a>, a 501(c)(3) public charity registered in New York. Software Freedom Conservancy's federal tax-exempt EIN is 41-2203632.</p>
 
   <strong>Mailing Address</strong>
   <address>