diff --git a/controllers/users.controller.js b/controllers/users.controller.js
index 05a3fa8..aef8858 100644
--- a/controllers/users.controller.js
+++ b/controllers/users.controller.js
@@ -68,6 +68,17 @@ class UserController {
     return res.status(response.statusCode).json(response);
   }
 
+  // Reject user
+  static async reject(req, res) {
+    const { id } = req.params;
+    const approverId = req.user.user_id;
+
+    const updatedUser = await UserService.rejectUser(id, approverId);
+    const response = await setResponse(updatedUser, 'User rejected successfully');
+
+    return res.status(response.statusCode).json(response);
+  }
+
   // Soft delete user
   static async delete(req, res) {
     const { id } = req.params;
diff --git a/routes/users.route.js b/routes/users.route.js
index 388e567..2b7abbb 100644
--- a/routes/users.route.js
+++ b/routes/users.route.js
@@ -20,4 +20,7 @@ router.route('/change-password/:id')
 router.route('/:id/approve')
   .put(verifyToken.verifyAccessToken, verifyAccess(), UserController.approve);
 
+router.route('/:id/reject')
+  .put(verifyToken.verifyAccessToken, verifyAccess(), UserController.reject);
+
 module.exports = router;
diff --git a/services/user.service.js b/services/user.service.js
index dc187af..b5f25cd 100644
--- a/services/user.service.js
+++ b/services/user.service.js
@@ -6,6 +6,7 @@ const {
   createUserDb,
   updateUserDb,
   approveUserDb,
+  rejectUserDb,
   deleteUserDb,
   changeUserPasswordDb
 } = require('../db/user.db');
@@ -114,10 +115,14 @@ class UserService {
         throw new ErrorHandler(404, 'User not found');
       }
 
-      if (existingUser.is_approve) {
+      if (existingUser.is_approve === 2) {
         throw new ErrorHandler(400, 'User is already approved');
       }
 
+      if (existingUser.is_approve === 0) {
+        throw new ErrorHandler(400, 'User is already rejected');
+      }
+
       const updatedUser = await approveUserDb(userId, approverId);
       return updatedUser;
     } catch (error) {
@@ -125,6 +130,33 @@ class UserService {
     }
   }
 
+  // Reject user
+  static async rejectUser(userId, approverId) {
+    try {
+      if (!userId) {
+        throw new ErrorHandler(400, 'User ID is required');
+      }
+
+      const existingUser = await getUserByIdDb(userId);
+      if (!existingUser) {
+        throw new ErrorHandler(404, 'User not found');
+      }
+
+      if (existingUser.is_approve === 2) {
+        throw new ErrorHandler(400, 'User is already approved');
+      }
+
+      if (existingUser.is_approve === 0) {
+        throw new ErrorHandler(400, 'User is already rejected');
+      }
+
+      const updatedUser = await rejectUserDb(userId, approverId);
+      return updatedUser;
+    } catch (error) {
+      throw new ErrorHandler(error.statusCode || 500, error.message);
+    }
+  }
+
   // Soft delete user
   static async deleteUser(id, userId) {
     try {