diff --git a/src/pretix/control/templates/pretixcontrol/order/index.html b/src/pretix/control/templates/pretixcontrol/order/index.html
index 35d4d1485..0ac8f1e8e 100644
--- a/src/pretix/control/templates/pretixcontrol/order/index.html
+++ b/src/pretix/control/templates/pretixcontrol/order/index.html
@@ -249,7 +249,7 @@
                                     {% endif %}
                                 {% else %}
                                     <strong>{{ event.currency }} {{ line.price|floatformat:2 }}</strong>
-                                    {% if line.tax_rate %}
+                                    {% if line.tax_rate and line.price %}
                                         <br />
                                         <small>
                                             {% blocktrans trimmed with rate=line.tax_rate taxname=line.tax_rule.name|default:s_taxes %}
@@ -293,7 +293,7 @@
                             <div class="clearfix"></div>
                         </div>
                     {% endif %}
-                    {% if event.settings.display_net_prices %}
+                    {% if event.settings.display_net_prices and items.net_total %}
                         <div class="row-fluid product-row total">
                             <div class="col-md-4 col-xs-6">
                                 <strong>{% trans "Net total" %}</strong>
diff --git a/src/pretix/presale/templates/pretixpresale/event/fragment_cart.html b/src/pretix/presale/templates/pretixpresale/event/fragment_cart.html
index 75eee47a8..afe440e6b 100644
--- a/src/pretix/presale/templates/pretixpresale/event/fragment_cart.html
+++ b/src/pretix/presale/templates/pretixpresale/event/fragment_cart.html
@@ -121,7 +121,7 @@
         <div class="totalprice price">
             {% if event.settings.display_net_prices %}
                 <strong>{{ event.currency }} {{ line.net_total|floatformat:2 }}</strong>
-                {% if line.tax_rate %}
+                {% if line.tax_rate and line.total %}
                     <br />
                     <small>
                         {% blocktrans trimmed with rate=line.tax_rate taxname=line.tax_rule.name|default:s_taxes %}
@@ -131,7 +131,7 @@
                 {% endif %}
             {% else %}
                 <strong>{{ event.currency }} {{ line.total|floatformat:2 }}</strong>
-                {% if line.tax_rate %}
+                {% if line.tax_rate and line.total %}
                     <br />
                     <small>
                         {% blocktrans trimmed with rate=line.tax_rate taxname=line.tax_rule.name|default:s_taxes %}
@@ -187,7 +187,7 @@
         <div class="clearfix"></div>
     </div>
 {% endif %}
-{% if event.settings.display_net_prices %}
+{% if event.settings.display_net_prices and cart.tax_total %}
     <div class="row cart-row total">
         <div class="col-md-4 col-xs-6">
             <strong>{% trans "Net total" %}</strong>
diff --git a/src/pretix/presale/templates/pretixpresale/event/index.html b/src/pretix/presale/templates/pretixpresale/event/index.html
index e71549ab9..3359f8307 100644
--- a/src/pretix/presale/templates/pretixpresale/event/index.html
+++ b/src/pretix/presale/templates/pretixpresale/event/index.html
@@ -202,6 +202,8 @@
                                                 {% blocktrans trimmed with minprice=item.min_price|floatformat:2 currency=event.currency %}
                                                     from {{ currency }} {{ minprice }}
                                                 {% endblocktrans %}
+                                            {% elif not item.min_price and not item.max_price %}
+                                                {% trans "FREE" context "price" %}
                                             {% else %}
                                                 {{ event.currency }} {{ item.min_price|floatformat:2 }}
                                             {% endif %}
@@ -241,16 +243,18 @@
                                                                     value="{% if event.settings.display_net_prices %}{{var.display_price.net|stringformat:"0.2f" }}{% else %}{{ var.display_price.gross|stringformat:"0.2f" }}{% endif %}"
                                                             >
                                                         </div>
+                                                    {% elif not var.display_price.gross %}
+                                                        {% trans "FREE" context "price" %}
                                                     {% elif event.settings.display_net_prices %}
                                                         {{ event.currency }} {{ var.display_price.net|floatformat:2 }}
                                                     {% else %}
                                                         {{ event.currency }} {{ var.display_price.gross|floatformat:2 }}
                                                     {% endif %}
-                                                    {% if var.display_price.rate and event.settings.display_net_prices %}
+                                                    {% if var.display_price.rate and var.display_price.gross and event.settings.display_net_prices %}
                                                         <small>{% blocktrans trimmed with rate=var.display_price.rate name=var.display_price.name %}
                                                             <strong>plus</strong> {{ rate }}% {{ name }}
                                                         {% endblocktrans %}</small>
-                                                    {% elif var.display_price.rate %}
+                                                    {% elif var.display_price.rate and var.display_price.gross %}
                                                         <small>{% blocktrans trimmed with rate=var.display_price.rate name=var.display_price.name %}
                                                             incl. {{ rate }}% {{ name }}
                                                         {% endblocktrans %}</small>
@@ -326,16 +330,18 @@
                                                         value="{% if event.settings.display_net_prices %}{{item.display_price.net|stringformat:"0.2f" }}{% else %}{{ item.display_price.gross|stringformat:"0.2f" }}{% endif %}"
                                                         step="any">
                                             </div>
+                                        {% elif not item.display_price.gross %}
+                                            {% trans "FREE" context "price" %}
                                         {% elif event.settings.display_net_prices %}
                                             {{ event.currency }} {{ item.display_price.net|floatformat:2 }}
                                         {% else %}
                                             {{ event.currency }} {{ item.display_price.gross|floatformat:2 }}
                                         {% endif %}
-                                        {% if item.display_price.rate and event.settings.display_net_prices %}
+                                        {% if item.display_price.rate and item.display_price.gross and event.settings.display_net_prices %}
                                             <small>{% blocktrans trimmed with rate=item.display_price.rate name=item.display_price.name %}
                                                 <strong>plus</strong> {{ rate }}% {{ name }}
                                             {% endblocktrans %}</small>
-                                        {% elif item.display_price.rate %}
+                                        {% elif item.display_price.rate and item.display_price.gross %}
                                             <small>{% blocktrans trimmed with rate=item.display_price.rate name=item.display_price.name %}
                                                 incl. {{ rate }}% {{ name }}
                                             {% endblocktrans %}</small>
diff --git a/src/pretix/presale/templates/pretixpresale/event/voucher.html b/src/pretix/presale/templates/pretixpresale/event/voucher.html
index 24ce06817..7b6704ffb 100644
--- a/src/pretix/presale/templates/pretixpresale/event/voucher.html
+++ b/src/pretix/presale/templates/pretixpresale/event/voucher.html
@@ -59,6 +59,8 @@
                                             {% blocktrans trimmed with minprice=item.min_price|floatformat:2 currency=event.currency %}
                                                 from {{ currency }} {{ minprice }}
                                             {% endblocktrans %}
+                                        {% elif not item.min_price and not item.max_price %}
+                                            {% trans "FREE" context "price" %}
                                         {% else %}
                                             {{ event.currency }} {{ item.min_price|floatformat:2 }}
                                         {% endif %}
@@ -89,16 +91,18 @@
                                                                 value="{% if event.settings.display_net_prices %}{{var.display_price.net|stringformat:"0.2f" }}{% else %}{{ var.display_price.gross|stringformat:"0.2f" }}{% endif %}"
                                                                 step="any">
                                                     </div>
+                                                {% elif not var.display_price.gross %}
+                                                    {% trans "FREE" context "price" %}
                                                 {% elif event.settings.display_net_prices %}
                                                     {{ event.currency }} {{ var.display_price.net|floatformat:2 }}
                                                 {% else %}
                                                     {{ event.currency }} {{ var.display_price.gross|floatformat:2 }}
                                                 {% endif %}
-                                                {% if var.display_price.rate and event.settings.display_net_prices %}
+                                                {% if var.display_price.rate and var.display_price.gross and event.settings.display_net_prices %}
                                                     <small>{% blocktrans trimmed with rate=var.display_price.rate name=var.display_price.name %}
                                                         <strong>plus</strong> {{ rate }}% taxes
                                                     {% endblocktrans %}</small>
-                                                {% elif var.display_price.rate %}
+                                                {% elif var.display_price.rate and var.display_price.gross %}
                                                     <small>{% blocktrans trimmed with rate=var.display_price.rate name=var.display_price.name %}
                                                         incl. {{ rate }}% taxes
                                                     {% endblocktrans %}</small>
@@ -156,16 +160,18 @@
                                                     value="{% if event.settings.display_net_prices %}{{ item.display_price.net|stringformat:"0.2f" }}{% else %}{{ item.display_price.gross|stringformat:"0.2f" }}{% endif %}"
                                                     step="any">
                                         </div>
+                                    {% elif not item.display_price.gross %}
+                                        {% trans "FREE" context "price" %}
                                     {% elif event.settings.display_net_prices %}
                                         {{ event.currency }} {{ item.display_price.net|floatformat:2 }}
                                     {% else %}
                                         {{ event.currency }} {{ item.display_price.gross|floatformat:2 }}
                                     {% endif %}
-                                    {% if item.display_price.rate and event.settings.display_net_prices %}
+                                    {% if item.display_price.rate and item.display_price.gross and event.settings.display_net_prices %}
                                         <small>{% blocktrans trimmed with rate=item.display_price.rate name=item.display_price.name %}
                                             <strong>plus</strong> {{ rate }}% {{ name }}
                                         {% endblocktrans %}</small>
-                                    {% elif item.display_price.rate %}
+                                    {% elif item.display_price.rate and item.display_price.gross%}
                                         <small>{% blocktrans trimmed with rate=item.display_price.rate name=item.display_price.name %}
                                             incl. {{ rate }}% {{ name }}
                                         {% endblocktrans %}</small>