diff --git a/src/app/Http/Controllers/API/V4/Admin/UsersController.php b/src/app/Http/Controllers/API/V4/Admin/UsersController.php
--- a/src/app/Http/Controllers/API/V4/Admin/UsersController.php
+++ b/src/app/Http/Controllers/API/V4/Admin/UsersController.php
@@ -69,6 +69,54 @@
     }
 
     /**
+     * Suspend the user
+     *
+     * @param \Illuminate\Http\Request $request The API request.
+     * @params string                  $id      User identifier
+     *
+     * @return \Illuminate\Http\JsonResponse The response
+     */
+    public function suspend(Request $request, $id)
+    {
+        $user = User::find($id);
+
+        if (empty($user)) {
+            return $this->errorResponse(404);
+        }
+
+        $user->suspend();
+
+        return response()->json([
+                'status' => 'success',
+                'message' => __('app.user-suspend-success'),
+        ]);
+    }
+
+    /**
+     * Un-Suspend the user
+     *
+     * @param \Illuminate\Http\Request $request The API request.
+     * @params string                  $id      User identifier
+     *
+     * @return \Illuminate\Http\JsonResponse The response
+     */
+    public function unsuspend(Request $request, $id)
+    {
+        $user = User::find($id);
+
+        if (empty($user)) {
+            return $this->errorResponse(404);
+        }
+
+        $user->unsuspend();
+
+        return response()->json([
+                'status' => 'success',
+                'message' => __('app.user-unsuspend-success'),
+        ]);
+    }
+
+    /**
      * Update user data.
      *
      * @param \Illuminate\Http\Request $request The API request.
diff --git a/src/resources/lang/en/app.php b/src/resources/lang/en/app.php
--- a/src/resources/lang/en/app.php
+++ b/src/resources/lang/en/app.php
@@ -31,9 +31,12 @@
 
     'domain-verify-success' => 'Domain verified successfully.',
     'domain-verify-error' => 'Domain ownership verification failed.',
+
     'user-update-success' => 'User data updated successfully.',
     'user-create-success' => 'User created successfully.',
     'user-delete-success' => 'User deleted successfully.',
+    'user-suspend-success' => 'User suspended successfully.',
+    'user-unsuspend-success' => 'User unsuspended successfully.',
 
     'search-foundxdomains' => ':x domains have been found.',
     'search-foundxusers' => ':x user accounts have been found.',
diff --git a/src/resources/sass/_variables.scss b/src/resources/sass/_variables.scss
--- a/src/resources/sass/_variables.scss
+++ b/src/resources/sass/_variables.scss
@@ -12,7 +12,7 @@
 $purple: #9561e2;
 $pink: #f66d9b;
 $red: #e3342f;
-$orange: #f6993f;
+$orange: #f1a539;
 $yellow: #ffed4a;
 $green: #38c172;
 $teal: #4dc0b5;
@@ -22,4 +22,5 @@
 
 // App colors
 $menu-bg-color: $light;
-$main-color: #f1a539;
+$main-color: $orange;
+$warning: $orange;
diff --git a/src/resources/vue/Admin/User.vue b/src/resources/vue/Admin/User.vue
--- a/src/resources/vue/Admin/User.vue
+++ b/src/resources/vue/Admin/User.vue
@@ -74,6 +74,8 @@
                                 <span class="form-control-plaintext" id="country">{{ user.country }}</span>
                             </div>
                         </div>
+                        <button v-if="!user.isSuspended" id="button-suspend" class="btn btn-warning" type="button" @click="suspendUser">Suspend</button>
+                        <button v-if="user.isSuspended" id="button-unsuspend" class="btn btn-warning" type="button" @click="unsuspendUser">Unsuspend</button>
                     </form>
                 </div>
             </div>
@@ -470,6 +472,24 @@
                             this.external_email = null // required because of Vue
                         }
                     })
+            },
+            suspendUser() {
+                axios.post('/api/v4/users/' + this.user.id + '/suspend', {})
+                    .then(response => {
+                        if (response.data.status == 'success') {
+                            this.$toast.success(response.data.message)
+                            this.user = Object.assign({}, this.user, { isSuspended: true })
+                        }
+                    })
+            },
+            unsuspendUser() {
+                axios.post('/api/v4/users/' + this.user.id + '/unsuspend', {})
+                    .then(response => {
+                        if (response.data.status == 'success') {
+                            this.$toast.success(response.data.message)
+                            this.user = Object.assign({}, this.user, { isSuspended: false })
+                        }
+                    })
             }
         }
     }
diff --git a/src/routes/api.php b/src/routes/api.php
--- a/src/routes/api.php
+++ b/src/routes/api.php
@@ -100,6 +100,8 @@
         Route::apiResource('packages', API\V4\Admin\PackagesController::class);
         Route::apiResource('skus', API\V4\Admin\SkusController::class);
         Route::apiResource('users', API\V4\Admin\UsersController::class);
+        Route::post('users/{id}/suspend', 'API\V4\Admin\UsersController@suspend');
+        Route::post('users/{id}/unsuspend', 'API\V4\Admin\UsersController@unsuspend');
         Route::apiResource('wallets', API\V4\Admin\WalletsController::class);
         Route::apiResource('discounts', API\V4\Admin\DiscountsController::class);
     }
diff --git a/src/tests/Browser/Admin/UserTest.php b/src/tests/Browser/Admin/UserTest.php
--- a/src/tests/Browser/Admin/UserTest.php
+++ b/src/tests/Browser/Admin/UserTest.php
@@ -3,6 +3,7 @@
 namespace Tests\Browser\Admin;
 
 use App\Discount;
+use App\User;
 use Tests\Browser;
 use Tests\Browser\Components\Dialog;
 use Tests\Browser\Components\Toast;
@@ -23,6 +24,7 @@
         self::useAdminUrl();
 
         $john = $this->getTestUser('john@kolab.org');
+        $john->update(['status' => $john->status ^= User::STATUS_SUSPENDED]);
         $john->setSettings([
                 'phone' => '+48123123123',
                 'external_email' => 'john.doe.external@gmail.com',
@@ -40,6 +42,7 @@
     public function tearDown(): void
     {
         $john = $this->getTestUser('john@kolab.org');
+        $john->update(['status' => $john->status ^= User::STATUS_SUSPENDED]);
         $john->setSettings([
                 'phone' => null,
                 'external_email' => 'john.doe.external@gmail.com',
@@ -407,6 +410,29 @@
     }
 
     /**
+     * Test suspending/unsuspending the user
+     */
+    public function testSuspendAndUnsuspend(): void
+    {
+        $this->browse(function (Browser $browser) {
+            $john = $this->getTestUser('john@kolab.org');
+
+            $browser->visit(new UserPage($john->id))
+                ->assertVisible('@user-info #button-suspend')
+                ->assertMissing('@user-info #button-unsuspend')
+                ->click('@user-info #button-suspend')
+                ->assertToast(Toast::TYPE_SUCCESS, 'User suspended successfully.')
+                ->assertSeeIn('@user-info #status span.text-warning', 'Suspended')
+                ->assertMissing('@user-info #button-suspend')
+                ->click('@user-info #button-unsuspend')
+                ->assertToast(Toast::TYPE_SUCCESS, 'User unsuspended successfully.')
+                ->assertSeeIn('@user-info #status span.text-success', 'Active')
+                ->assertVisible('@user-info #button-suspend')
+                ->assertMissing('@user-info #button-unsuspend');
+        });
+    }
+
+    /**
      * Test editing wallet discount
      *
      * @depends testUserInfo2
diff --git a/src/tests/Feature/Controller/Admin/UsersTest.php b/src/tests/Feature/Controller/Admin/UsersTest.php
--- a/src/tests/Feature/Controller/Admin/UsersTest.php
+++ b/src/tests/Feature/Controller/Admin/UsersTest.php
@@ -2,6 +2,7 @@
 
 namespace Tests\Feature\Controller\Admin;
 
+use Illuminate\Support\Facades\Queue;
 use Tests\TestCase;
 
 class UsersTest extends TestCase
@@ -14,6 +15,8 @@
         parent::setUp();
         self::useAdminUrl();
 
+        $this->deleteTestUser('UsersControllerTest1@userscontroller.com');
+
         $jack = $this->getTestUser('jack@kolab.org');
         $jack->setSetting('external_email', null);
     }
@@ -23,6 +26,8 @@
      */
     public function tearDown(): void
     {
+        $this->deleteTestUser('UsersControllerTest1@userscontroller.com');
+
         $jack = $this->getTestUser('jack@kolab.org');
         $jack->setSetting('external_email', null);
 
@@ -142,6 +147,66 @@
     }
 
     /**
+     * Test user suspending (POST /api/v4/users/<user-id>/suspend)
+     */
+    public function testSuspend(): void
+    {
+        Queue::fake(); // disable jobs
+
+        $user = $this->getTestUser('UsersControllerTest1@userscontroller.com');
+        $admin = $this->getTestUser('jeroen@jeroen.jeroen');
+
+        // Test unauthorized access to admin API
+        $response = $this->actingAs($user)->post("/api/v4/users/{$user->id}/suspend", []);
+        $response->assertStatus(403);
+
+        $this->assertFalse($user->isSuspended());
+
+        // Test suspending the user
+        $response = $this->actingAs($admin)->post("/api/v4/users/{$user->id}/suspend", []);
+        $response->assertStatus(200);
+
+        $json = $response->json();
+
+        $this->assertSame('success', $json['status']);
+        $this->assertSame("User suspended successfully.", $json['message']);
+        $this->assertCount(2, $json);
+
+        $this->assertTrue($user->fresh()->isSuspended());
+    }
+
+    /**
+     * Test user un-suspending (POST /api/v4/users/<user-id>/unsuspend)
+     */
+    public function testUnsuspend(): void
+    {
+        Queue::fake(); // disable jobs
+
+        $user = $this->getTestUser('UsersControllerTest1@userscontroller.com');
+        $admin = $this->getTestUser('jeroen@jeroen.jeroen');
+
+        // Test unauthorized access to admin API
+        $response = $this->actingAs($user)->post("/api/v4/users/{$user->id}/unsuspend", []);
+        $response->assertStatus(403);
+
+        $this->assertFalse($user->isSuspended());
+        $user->suspend();
+        $this->assertTrue($user->isSuspended());
+
+        // Test suspending the user
+        $response = $this->actingAs($admin)->post("/api/v4/users/{$user->id}/unsuspend", []);
+        $response->assertStatus(200);
+
+        $json = $response->json();
+
+        $this->assertSame('success', $json['status']);
+        $this->assertSame("User unsuspended successfully.", $json['message']);
+        $this->assertCount(2, $json);
+
+        $this->assertFalse($user->fresh()->isSuspended());
+    }
+
+    /**
      * Test user update (PUT /api/v4/users/<user-id>)
      */
     public function testUpdate(): void
@@ -150,7 +215,7 @@
         $admin = $this->getTestUser('jeroen@jeroen.jeroen');
 
         // Test unauthorized access to admin API
-        $response = $this->actingAs($user)->get("/api/v4/users/{$user->id}", []);
+        $response = $this->actingAs($user)->put("/api/v4/users/{$user->id}", []);
         $response->assertStatus(403);
 
         // Test updatig the user data (empty data)