diff --git a/backend/routes/tasks/queries/metrics-queries.js b/backend/routes/tasks/queries/metrics-queries.js
index 26cf399..ad18368 100644
--- a/backend/routes/tasks/queries/metrics-queries.js
+++ b/backend/routes/tasks/queries/metrics-queries.js
@@ -40,7 +40,11 @@ async function fetchTasksInProgress(visibleTasksWhere) {
             recurring_parent_id: null,
         },
         include: getTaskIncludeConfig(),
-        order: [['priority', 'DESC']],
+        order: [
+            ['priority', 'DESC'],
+            ['due_date', 'ASC'],
+            ['project_id', 'ASC'],
+        ],
     });
 }
 
@@ -67,7 +71,8 @@ async function fetchTodayPlanTasks(visibleTasksWhere) {
         include: getTaskIncludeConfig(),
         order: [
             ['priority', 'DESC'],
-            ['created_at', 'ASC'],
+            ['due_date', 'ASC'],
+            ['project_id', 'ASC'],
         ],
     });
 }
diff --git a/frontend/utils/taskSortUtils.ts b/frontend/utils/taskSortUtils.ts
index bc233d4..ecfe713 100644
--- a/frontend/utils/taskSortUtils.ts
+++ b/frontend/utils/taskSortUtils.ts
@@ -36,11 +36,19 @@ export const sortTasksByPriorityDueDateProject = (
 
     return [...filteredTasks].sort((a, b) => {
         // 1. Priority (High → Medium → Low → None)
-        const priorityOrder = { high: 3, medium: 2, low: 1 };
-        const aPriority =
-            priorityOrder[a.priority as keyof typeof priorityOrder] || 0;
-        const bPriority =
-            priorityOrder[b.priority as keyof typeof priorityOrder] || 0;
+        // Handle both string ('low', 'medium', 'high') and numeric (0, 1, 2) priority values
+        const getPriorityValue = (priority: any): number => {
+            if (typeof priority === 'number') {
+                // Backend numeric format: 0 = LOW, 1 = MEDIUM, 2 = HIGH
+                return priority;
+            }
+            // Frontend string format
+            const priorityOrder = { high: 2, medium: 1, low: 0 };
+            return priorityOrder[priority as keyof typeof priorityOrder] ?? -1;
+        };
+
+        const aPriority = getPriorityValue(a.priority);
+        const bPriority = getPriorityValue(b.priority);
         if (aPriority !== bPriority) {
             return bPriority - aPriority; // Higher priority first
         }