diff --git a/opal-task/cmd/root.go b/opal-task/cmd/root.go
index 1818122..00bf4cd 100644
--- a/opal-task/cmd/root.go
+++ b/opal-task/cmd/root.go
@@ -34,7 +34,7 @@ var commandNames = []string{
 	"add", "done", "modify", "delete",
 	"start", "stop", "count", "projects", "tags",
 	"info", "edit", "server", "sync", "reports", "setup",
-	"version", "annotate", "denotate", "undo", "log", "completion",
+	"version", "annotate", "denotate", "undo", "uncomplete", "log", "completion",
 }
 
 // Report names (dynamically populated)
@@ -241,6 +241,7 @@ func init() {
 	annotateCmd.GroupID = "task"
 	denotateCmd.GroupID = "task"
 	undoCmd.GroupID = "task"
+	uncompleteCmd.GroupID = "task"
 	logCmd.GroupID = "task"
 
 	rootCmd.AddCommand(addCmd)
@@ -254,6 +255,7 @@ func init() {
 	rootCmd.AddCommand(annotateCmd)
 	rootCmd.AddCommand(denotateCmd)
 	rootCmd.AddCommand(undoCmd)
+	rootCmd.AddCommand(uncompleteCmd)
 	rootCmd.AddCommand(logCmd)
 
 	// Other commands
diff --git a/opal-task/cmd/uncomplete.go b/opal-task/cmd/uncomplete.go
new file mode 100644
index 0000000..4fc1ae6
--- /dev/null
+++ b/opal-task/cmd/uncomplete.go
@@ -0,0 +1,88 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"git.jnss.me/joakim/opal/internal/engine"
+	"github.com/spf13/cobra"
+)
+
+var uncompleteCmd = &cobra.Command{
+	Use:   "uncomplete [filter...]",
+	Short: "Restore a completed task to pending",
+	Long: `Restore a completed task back to pending status.
+
+Unlike undo, this is a targeted action that works on any completed task
+regardless of when it was completed.
+
+Examples:
+  opal 2 uncomplete
+  opal uncomplete +errand`,
+	Run: func(cmd *cobra.Command, args []string) {
+		parsed := getParsedArgs(cmd)
+		if err := uncompleteTasks(parsed.Filters); err != nil {
+			fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+			os.Exit(1)
+		}
+	},
+}
+
+func uncompleteTasks(args []string) error {
+	if len(args) == 0 {
+		return fmt.Errorf("no task specified")
+	}
+
+	filter, err := engine.ParseFilter(args)
+	if err != nil {
+		return fmt.Errorf("failed to parse filter: %w", err)
+	}
+
+	ws, err := engine.LoadWorkingSet()
+	if err != nil {
+		return fmt.Errorf("failed to load working set: %w", err)
+	}
+
+	var tasks []*engine.Task
+
+	if len(filter.IDs) > 0 {
+		for _, id := range filter.IDs {
+			task, err := ws.GetTaskByDisplayID(id)
+			if err != nil {
+				return err
+			}
+			tasks = append(tasks, task)
+		}
+	} else {
+		tasks, err = engine.GetTasks(filter)
+		if err != nil {
+			return fmt.Errorf("failed to get tasks: %w", err)
+		}
+	}
+
+	if len(tasks) == 0 {
+		return fmt.Errorf("no tasks matched filter")
+	}
+
+	uncompleted := 0
+	for _, task := range tasks {
+		if task.Status != engine.StatusCompleted {
+			fmt.Fprintf(os.Stderr, "Warning: task %s is not completed, skipping\n", task.UUID)
+			continue
+		}
+		task.Status = engine.StatusPending
+		task.End = nil
+		if err := task.Save(); err != nil {
+			fmt.Fprintf(os.Stderr, "Warning: failed to uncomplete task %s: %v\n", task.UUID, err)
+		} else {
+			uncompleted++
+		}
+	}
+
+	if uncompleted == 1 {
+		fmt.Printf("Restored task %s to pending\n", engine.FormatTaskSummary(tasks[0], ws))
+	} else {
+		fmt.Printf("Restored %d task(s) to pending.\n", uncompleted)
+	}
+	return nil
+}