diff --git a/src/__tests__/admin.user.status.test.js b/src/__tests__/admin.user.status.test.js
new file mode 100644
index 0000000..b0e418d
--- /dev/null
+++ b/src/__tests__/admin.user.status.test.js
@@ -0,0 +1,145 @@
+const request = require('supertest');
+
+jest.mock('../models/User.model', () => ({
+  findOne: jest.fn(),
+  findById: jest.fn(),
+  find: jest.fn(),
+  findByIdAndUpdate: jest.fn(),
+}));
+
+jest.mock('jsonwebtoken', () => ({
+  verify: jest.fn(),
+  sign: jest.fn(),
+  decode: jest.fn(),
+}));
+
+const User = require('../models/User.model');
+const jwt = require('jsonwebtoken');
+const app = require('../app');
+
+const adminToken = 'Bearer admin-token';
+const adminPayload = { sub: 'admin-id', email: 'admin@example.com', role: 'admin', type: 'access' };
+const adminUser = { _id: 'admin-id', id: 'admin-id', email: 'admin@example.com', role: 'admin', deletedAt: null };
+
+beforeAll(() => {
+  process.env.JWT_SECRET = 'test-secret';
+});
+
+beforeEach(() => {
+  jest.clearAllMocks();
+  jwt.verify.mockReturnValue(adminPayload);
+  User.findById.mockResolvedValue(adminUser);
+});
+
+describe('PATCH /api/admin/users/:id/status', () => {
+  const targetUser = {
+    id: 'user-id-123',
+    email: 'user@example.com',
+    fullName: 'Test User',
+    status: 'suspended',
+  };
+
+  it('suspends an active user', async () => {
+    User.findByIdAndUpdate.mockReturnValue({
+      select: jest.fn().mockResolvedValue({ ...targetUser, status: 'suspended' }),
+    });
+
+    const res = await request(app)
+      .patch('/api/admin/users/user-id-123/status')
+      .set('Authorization', adminToken)
+      .send({ status: 'suspended' })
+      .expect(200);
+
+    expect(res.body.success).toBe(true);
+    expect(res.body.data.status).toBe('suspended');
+  });
+
+  it('reactivates a suspended user', async () => {
+    User.findByIdAndUpdate.mockReturnValue({
+      select: jest.fn().mockResolvedValue({ ...targetUser, status: 'active' }),
+    });
+
+    const res = await request(app)
+      .patch('/api/admin/users/user-id-123/status')
+      .set('Authorization', adminToken)
+      .send({ status: 'active' })
+      .expect(200);
+
+    expect(res.body.success).toBe(true);
+    expect(res.body.data.status).toBe('active');
+  });
+
+  it('returns 400 for an invalid status value', async () => {
+    const res = await request(app)
+      .patch('/api/admin/users/user-id-123/status')
+      .set('Authorization', adminToken)
+      .send({ status: 'banned' })
+      .expect(400);
+
+    expect(res.body.success).toBe(false);
+  });
+
+  it('returns 404 when user does not exist', async () => {
+    User.findByIdAndUpdate.mockReturnValue({
+      select: jest.fn().mockResolvedValue(null),
+    });
+
+    const res = await request(app)
+      .patch('/api/admin/users/nonexistent-id/status')
+      .set('Authorization', adminToken)
+      .send({ status: 'suspended' })
+      .expect(404);
+
+    expect(res.body.success).toBe(false);
+  });
+
+  it('returns 403 when admin tries to change their own status', async () => {
+    const res = await request(app)
+      .patch('/api/admin/users/admin-id/status')
+      .set('Authorization', adminToken)
+      .send({ status: 'suspended' })
+      .expect(403);
+
+    expect(res.body.success).toBe(false);
+  });
+
+  it('returns 401 without auth token', async () => {
+    const res = await request(app)
+      .patch('/api/admin/users/user-id-123/status')
+      .send({ status: 'suspended' })
+      .expect(401);
+
+    expect(res.body.success).toBe(false);
+  });
+});
+
+describe('POST /api/auth/login - suspended user', () => {
+  it('returns 403 when a suspended user tries to log in', async () => {
+    jest.mock('bcryptjs', () => ({ compare: jest.fn().mockResolvedValue(true) }));
+
+    const suspendedUser = {
+      _id: 'user-id-123',
+      email: 'suspended@example.com',
+      role: 'user',
+      isVerified: true,
+      status: 'suspended',
+      password: 'hashed-password',
+      save: jest.fn(),
+    };
+
+    User.findOne.mockReturnValue({
+      select: jest.fn().mockResolvedValue(suspendedUser),
+    });
+
+    const bcrypt = require('bcryptjs');
+    bcrypt.compare = jest.fn().mockResolvedValue(true);
+
+    const res = await request(app)
+      .post('/api/auth/login')
+      .send({ email: 'suspended@example.com', password: 'password123' })
+      .expect(403);
+
+    expect(res.body.success).toBe(false);
+    expect(res.body.message).toMatch(/suspended/i);
+  });
+});
diff --git a/src/controllers/admin.users.controller.js b/src/controllers/admin.users.controller.js
index 06ccee4..1acc80e 100644
--- a/src/controllers/admin.users.controller.js
+++ b/src/controllers/admin.users.controller.js
@@ -1,6 +1,40 @@
 const User = require('../models/User.model');
 const { sendSuccess, sendError } = require('../utils/response');
 
+/**
+ * Suspend or activate a user account (admin only)
+ * @route PATCH /api/admin/users/:id/status
+ * @access Admin only
+ */
+const updateUserStatus = async (req, res, next) => {
+  try {
+    const { id } = req.params;
+    const { status } = req.body;
+
+    if (!['active', 'suspended'].includes(status)) {
+      return sendError(res, 'Status must be "active" or "suspended"', 400);
+    }
+
+    if (id === req.userId) {
+      return sendError(res, 'You cannot change your own account status', 403);
+    }
+
+    const user = await User.findByIdAndUpdate(
+      id,
+      { status },
+      { new: true, runValidators: true }
+    ).select('id email fullName status');
+
+    if (!user) {
+      return sendError(res, 'User not found', 404);
+    }
+
+    return sendSuccess(res, { id: user.id, email: user.email, fullName: user.fullName, status: user.status }, 200, `User account ${status} successfully`);
+  } catch (error) {
+    next(error);
+  }
+};
+
 /**
  * Soft delete a user by ID (admin only)
  * @route DELETE /api/admin/users/:id
@@ -132,5 +166,6 @@ module.exports = {
   deleteUser,
   restoreUser,
   listUsers,
+  updateUserStatus,
   updateUserRole,
 };
diff --git a/src/controllers/auth.controller.js b/src/controllers/auth.controller.js
index 55d3d3d..3e89ed4 100644
--- a/src/controllers/auth.controller.js
+++ b/src/controllers/auth.controller.js
@@ -161,6 +161,14 @@ const login = async (req, res, next) => {
       return next(error);
     }
 
+    // Reject if user account is suspended
+    if (user.status === 'suspended') {
+      const error = new Error('Your account has been suspended. Please contact support.');
+      error.statusCode = 403;
+      error.isOperational = true;
+      return next(error);
+    }
+
     const isPasswordValid = await bcrypt.compare(password, user.password);
     if (!isPasswordValid) {
       const error = new Error('Invalid credentials');
diff --git a/src/models/User.model.js b/src/models/User.model.js
index 1ef0aaf..7cc90fe 100644
--- a/src/models/User.model.js
+++ b/src/models/User.model.js
@@ -56,6 +56,11 @@ const userSchema = new mongoose.Schema(
       type: Date,
       default: null,
     },
+    status: {
+      type: String,
+      enum: ['active', 'suspended'],
+      default: 'active',
+    },
     kycStatus: {
       type: String,
       enum: ['pending', 'approved', 'rejected'],
diff --git a/src/routes/admin.routes.js b/src/routes/admin.routes.js
index b7e15f7..1bc0564 100644
--- a/src/routes/admin.routes.js
+++ b/src/routes/admin.routes.js
@@ -5,6 +5,7 @@ const {
   deleteUser,
   restoreUser,
   listUsers,
+  updateUserStatus,
   updateUserRole,
 } = require('../controllers/admin.users.controller');
 
@@ -23,6 +24,8 @@ router.delete('/users/:id', deleteUser);
 // POST /api/admin/users/:id/restore - Restore a soft-deleted user
 router.post('/users/:id/restore', restoreUser);
 
+// PATCH /api/admin/users/:id/status - Suspend or activate a user
+router.patch('/users/:id/status', updateUserStatus);
 // PATCH /api/admin/users/:id/role - Update a user role
 router.patch('/users/:id/role', updateUserRole);