diff --git a/wagtail/users/migrations/0011_userprofile_dismissibles.py b/wagtail/users/migrations/0011_userprofile_dismissibles.py
new file mode 100644
index 0000000000..5bb4886fdc
--- /dev/null
+++ b/wagtail/users/migrations/0011_userprofile_dismissibles.py
@@ -0,0 +1,18 @@
+# Generated by Django 4.0.5 on 2022-10-06 15:46
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("wagtailusers", "0010_userprofile_updated_comments_notifications"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="userprofile",
+            name="dismissibles",
+            field=models.JSONField(blank=True, default=dict),
+        ),
+    ]
diff --git a/wagtail/users/models.py b/wagtail/users/models.py
index 173a85d3a2..004162dfc3 100644
--- a/wagtail/users/models.py
+++ b/wagtail/users/models.py
@@ -70,6 +70,8 @@ class UserProfile(models.Model):
         blank=True,
     )
 
+    dismissibles = models.JSONField(default=dict, blank=True)
+
     @classmethod
     def get_for_user(cls, user):
         return cls.objects.get_or_create(user=user)[0]