diff --git a/lib/putzplan/tasks.ex b/lib/putzplan/tasks.ex
index a407b77..02854d6 100644
--- a/lib/putzplan/tasks.ex
+++ b/lib/putzplan/tasks.ex
@@ -3,5 +3,6 @@ defmodule Putzplan.Tasks do
 
   resources do
     resource Putzplan.Tasks.Task
+    resource Putzplan.Tasks.CompletedTask
   end
 end
diff --git a/lib/putzplan/tasks/completed_task.ex b/lib/putzplan/tasks/completed_task.ex
new file mode 100644
index 0000000..9d16520
--- /dev/null
+++ b/lib/putzplan/tasks/completed_task.ex
@@ -0,0 +1,30 @@
+defmodule Putzplan.Tasks.CompletedTask do
+  use Ash.Resource, otp_app: :putzplan, domain: Putzplan.Tasks, data_layer: AshSqlite.DataLayer
+
+  actions do
+    defaults [:read]
+  end
+
+  attributes do
+    uuid_primary_key :id
+
+    attribute :completion, :date do
+      allow_nil? false
+    end
+  end
+
+  relationships do
+    belongs_to :users, Putzplan.Accounts.User do
+      allow_nil? false
+    end
+
+    belongs_to :tasks, Putzplan.Tasks.Task do
+      allow_nil? false
+    end
+  end
+
+  sqlite do
+    table "completed_tasks"
+    repo Putzplan.Repo
+  end
+end