diff --git a/.changeset/nasty-chefs-add.md b/.changeset/nasty-chefs-add.md
new file mode 100644
index 00000000..304aeb24
--- /dev/null
+++ b/.changeset/nasty-chefs-add.md
@@ -0,0 +1,8 @@
+---
+"task-master-ai": patch
+---
+
+Fixes issue with expand CLI command "Complexity report not found"
+
+- Closes #735
+- Closes #728
diff --git a/scripts/modules/task-manager/expand-task.js b/scripts/modules/task-manager/expand-task.js
index 3757067e..2cfb9911 100644
--- a/scripts/modules/task-manager/expand-task.js
+++ b/scripts/modules/task-manager/expand-task.js
@@ -15,6 +15,7 @@ import { generateTextService } from '../ai-services-unified.js';
 import { getDefaultSubtasks, getDebugFlag } from '../config-manager.js';
 import generateTaskFiles from './generate-task-files.js';
 import { COMPLEXITY_REPORT_FILE } from '../../../src/constants/paths.js';
+import { findProjectRoot } from '../../../src/utils/path-utils.js';
 
 // --- Zod Schemas (Keep from previous step) ---
 const subtaskSchema = z
@@ -417,8 +418,7 @@ async function expandTask(
 	const outputFormat = mcpLog ? 'json' : 'text';
 
 	// Determine projectRoot: Use from context if available, otherwise derive from tasksPath
-	const projectRoot =
-		contextProjectRoot || path.dirname(path.dirname(tasksPath));
+	const projectRoot = contextProjectRoot || findProjectRoot(tasksPath);
 
 	// Use mcpLog if available, otherwise use the default console log wrapper
 	const logger = mcpLog || {