diff --git a/src/aggregator/index.ts b/src/aggregator/index.ts
index 200db6f..41bd5cc 100644
--- a/src/aggregator/index.ts
+++ b/src/aggregator/index.ts
@@ -511,8 +511,17 @@ export class BacklogAggregator {
 			tasks = tasks.filter((t) => (t.priority ?? "").toLowerCase() === priority.toLowerCase());
 		}
 
-		// Sort by project then by task ID
+		// Sort: due-date tasks first (soonest/overdue at top), then by project, then by task ID
+		const now = new Date().toISOString().slice(0, 10);
 		tasks = tasks.sort((a, b) => {
+			const aDue = a.dueDate || "";
+			const bDue = b.dueDate || "";
+			// Tasks with due dates come before tasks without
+			if (aDue && !bDue) return -1;
+			if (!aDue && bDue) return 1;
+			// Both have due dates: sort soonest first
+			if (aDue && bDue) return aDue.localeCompare(bDue);
+			// Neither has due date: group by project, then by task ID
 			const projectCompare = a.projectName.localeCompare(b.projectName);
 			if (projectCompare !== 0) return projectCompare;
 			return sortByTaskId([a, b])[0] === a ? -1 : 1;
diff --git a/src/markdown/parser.ts b/src/markdown/parser.ts
index 196128f..07a1b31 100644
--- a/src/markdown/parser.ts
+++ b/src/markdown/parser.ts
@@ -176,6 +176,13 @@ export function parseTask(content: string): Task {
 				: frontmatter.estimatedHours !== undefined
 					? Number(frontmatter.estimatedHours)
 					: undefined,
+		dueDate: frontmatter.due_date
+			? normalizeDate(frontmatter.due_date)
+			: frontmatter.dueDate
+				? normalizeDate(frontmatter.dueDate)
+				: frontmatter.deadline
+					? normalizeDate(frontmatter.deadline)
+					: undefined,
 	};
 }
 
diff --git a/src/types/index.ts b/src/types/index.ts
index 50f51d4..9cd659c 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -52,6 +52,8 @@ export interface Task {
 	doToday?: boolean;
 	/** Estimated hours to complete the task (for time tracking and invoicing) */
 	estimatedHours?: number;
+	/** Due date / deadline for the task (YYYY-MM-DD or YYYY-MM-DD HH:mm) */
+	dueDate?: string;
 }
 
 /**