diff --git a/lacommunaute/forum_conversation/forms.py b/lacommunaute/forum_conversation/forms.py
index 22c7c9cb..81f4ed37 100644
--- a/lacommunaute/forum_conversation/forms.py
+++ b/lacommunaute/forum_conversation/forms.py
@@ -50,6 +50,7 @@ class TopicForm(CreateUpdatePostMixin, AbstractTopicForm):
     tags = ModelMultipleChoiceField(
         label="", queryset=Tag.objects.all(), widget=CheckboxSelectMultiple, required=False
     )
+    new_tags = CharField(required=False, label="Ajouter un tag ou plusieurs tags (séparés par des virgules)")
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -59,5 +60,10 @@ def __init__(self, *args, **kwargs):
     def save(self):
         post = super().save()
         post.topic.tags.set(self.cleaned_data["tags"])
+        (
+            post.topic.tags.add(*[tag.strip() for tag in self.cleaned_data["new_tags"].split(",")])
+            if self.cleaned_data.get("new_tags")
+            else None
+        )
 
         return post
diff --git a/lacommunaute/forum_conversation/tests/tests_views.py b/lacommunaute/forum_conversation/tests/tests_views.py
index 946488ab..b614f0c9 100644
--- a/lacommunaute/forum_conversation/tests/tests_views.py
+++ b/lacommunaute/forum_conversation/tests/tests_views.py
@@ -1,4 +1,4 @@
-import pytest
+import pytest  # noqa
 from django.conf import settings
 from django.contrib.messages.api import get_messages
 from django.contrib.messages.middleware import MessageMiddleware
@@ -255,6 +255,38 @@ def test_redirections_on_documentation_forum(self, db, client, snapshot):
         content = parse_response_to_soup(response, selector="#div_id_content")
         assert str(content) == snapshot(name="topic_create")
 
+    def test_create_with_new_tags(self, db, client):
+        forum = ForumFactory(with_public_perms=True)
+        client.force_login(UserFactory())
+        tags_list = [faker.word() for i in range(2)]
+        response = client.post(
+            reverse("forum_conversation:topic_create", kwargs={"forum_pk": forum.pk, "forum_slug": forum.slug}),
+            {
+                "subject": faker.sentence(),
+                "content": faker.paragraph(nb_sentences=5),
+                "new_tags": ", ".join(tags_list),
+            },
+            follow=True,
+        )
+        assert response.status_code == 200
+
+        queryset = forum.topics.get().tags.filter(name__in=tags_list)
+        assert all(tag in queryset.values_list("name", flat=True) for tag in tags_list)
+
+    def test_create_without_tag(self, db, client):
+        forum = ForumFactory(with_public_perms=True)
+        client.force_login(UserFactory())
+        response = client.post(
+            reverse("forum_conversation:topic_create", kwargs={"forum_pk": forum.pk, "forum_slug": forum.slug}),
+            {
+                "subject": faker.sentence(),
+                "content": faker.paragraph(nb_sentences=5),
+            },
+            follow=True,
+        )
+        assert response.status_code == 200
+        assert forum.topics.get().tags.count() == 0
+
 
 class TopicUpdateViewTest(TestCase):
     @classmethod
diff --git a/lacommunaute/templates/forum_conversation/partials/topic_form.html b/lacommunaute/templates/forum_conversation/partials/topic_form.html
index 0534c331..ac40d25f 100644
--- a/lacommunaute/templates/forum_conversation/partials/topic_form.html
+++ b/lacommunaute/templates/forum_conversation/partials/topic_form.html
@@ -40,6 +40,7 @@
         <div class="tab-pane" id="tags">
             <div class="row">
                 <div id="tags_formset" class="col-md-12">{% include "partials/form_field.html" with field=post_form.tags %}</div>
+                {% include "partials/form_field.html" with field=post_form.new_tags %}
             </div>
         </div>
         {% if poll_option_formset %}