diff --git a/config/subscription.php b/config/subscription.php
new file mode 100644
index 00000000..1620400e
--- /dev/null
+++ b/config/subscription.php
@@ -0,0 +1,54 @@
+<?php
+
+return [
+    'driver'            => env('SUBSCRIPTION_DRIVER', 'stripe'),
+
+    /*
+     * Activate drivers to handle subscription
+     */
+    'available_drivers' => [
+        'paystack',
+        'paypal',
+        'stripe',
+    ],
+    'metered_billing'   => [
+        'settlement_period' => 30,
+        /*
+         * Drivers which have native support for metered billing.
+         * This native support doesn't use subscription package credit system, but prefer
+         * auto-renew and maintain metered subscription on behalf of external service.
+         */
+        'native_support' => [
+            'stripe',
+        ],
+    ],
+    'paystack'          => [
+        /*
+         * List of allowed ip address to verify paystack webhook request
+         */
+        'allowed_ips' => [
+            '52.214.14.220',
+            '52.49.173.169',
+            '52.31.139.75',
+        ],
+    ],
+
+    /*
+     * Get gateway credentials
+     */
+    'credentials'       => [
+        'stripe'   => [
+            'secret'     => env('STRIPE_SECRET_KEY'),
+            'public_key' => env('STRIPE_PUBLIC_KEY'),
+        ],
+        'paystack' => [
+            'secret'     => env('PAYSTACK_SECRET'),
+            'public_key' => env('PAYSTACK_PUBLIC_KEY'),
+        ],
+        'paypal'   => [
+            'id'         => env('PAYPAL_CLIENT_ID'),
+            'secret'     => env('PAYPAL_CLIENT_SECRET'),
+            'webhook_id' => env('PAYPAL_WEBHOOK_ID'),
+        ],
+    ],
+];
diff --git a/src/App/Users/Actions/AutoSubscribeForMeteredBillingAction.php b/src/App/Users/Actions/AutoSubscribeForMeteredBillingAction.php
new file mode 100644
index 00000000..1855def6
--- /dev/null
+++ b/src/App/Users/Actions/AutoSubscribeForMeteredBillingAction.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace App\Users\Actions;
+
+use App\Users\Models\User;
+use VueFileManager\Subscription\Domain\Plans\Models\Plan;
+
+class AutoSubscribeForMeteredBillingAction
+{
+    public function __invoke(User $user)
+    {
+        // Get metered billing plan
+        $plan = Plan::where('status', 'active')
+            ->where('type', 'metered')
+            ->first();
+
+        // TODO: add bonus
+
+        // Create user balance
+        $user->balance()->create([
+            'amount'   => 0,
+            'currency' => $plan->currency,
+        ]);
+
+        // Create user subscription
+        $user->subscription()->create([
+            'plan_id'   => $plan->id,
+            'name'      => $plan->name,
+            'status'    => 'active',
+            'renews_at' => now()->addDays(config('subscription.metered_billing.settlement_period')),
+            'type'      => 'pre-paid',
+        ]);
+    }
+}
\ No newline at end of file
diff --git a/src/App/Users/Actions/CreateNewUserAction.php b/src/App/Users/Actions/CreateNewUserAction.php
index 85df1dd5..7f288b27 100644
--- a/src/App/Users/Actions/CreateNewUserAction.php
+++ b/src/App/Users/Actions/CreateNewUserAction.php
@@ -1,16 +1,20 @@
 <?php
+
 namespace App\Users\Actions;
 
 use App\Users\Models\User;
 use App\Http\Controllers\Controller;
 use Illuminate\Auth\Events\Registered;
 use Illuminate\Contracts\Auth\StatefulGuard;
+use VueFileManager\Subscription\Domain\Plans\Models\Plan;
 
 class CreateNewUserAction extends Controller
 {
     public function __construct(
-        protected StatefulGuard $guard
-    ) {
+        protected StatefulGuard                        $guard,
+        protected AutoSubscribeForMeteredBillingAction $autoSubscribeForMeteredBilling,
+    )
+    {
     }
 
     /**
@@ -19,11 +23,11 @@ class CreateNewUserAction extends Controller
     public function __invoke($data)
     {
         $settings = get_settings([
-            'registration', 'user_verification',
+            'registration', 'user_verification', 'subscription_type',
         ]);
 
         // Check if account registration is enabled
-        if (! intval($settings['registration'])) {
+        if (!intval($settings['registration'])) {
             abort(401);
         }
 
@@ -34,22 +38,25 @@ class CreateNewUserAction extends Controller
             'email'          => $data->email,
         ]);
 
-        $user
-            ->settings()
-            ->create([
-                'name'   => $data->name,
-                'avatar' => $data->avatar,
-            ]);
+        $user->settings()->create([
+            'name'   => $data->name,
+            'avatar' => $data->avatar,
+        ]);
+
+        // Subscribe user for metered billing
+        if ($settings['subscription_type'] === 'metered') {
+            ($this->autoSubscribeForMeteredBilling)($user);
+        }
 
         // Mark as verified if verification is disabled
-        if (! $data->password || ! intval($settings['user_verification'])) {
+        if (!$data->password || !intval($settings['user_verification'])) {
             $user->markEmailAsVerified();
         }
 
         event(new Registered($user));
 
         // Log in if verification is disabled
-        if (! $data->password || ! intval($settings['user_verification'])) {
+        if (!$data->password || !intval($settings['user_verification'])) {
             $this->guard->login($user);
         }
     }
diff --git a/tests/App/Restrictions/MeteredBillingRestrictionsTest.php b/tests/App/Restrictions/MeteredBillingRestrictionsTest.php
index 6f6998a5..58470200 100644
--- a/tests/App/Restrictions/MeteredBillingRestrictionsTest.php
+++ b/tests/App/Restrictions/MeteredBillingRestrictionsTest.php
@@ -5,7 +5,7 @@ use Tests\TestCase;
 use App\Users\Models\User;
 use Domain\Files\Models\File;
 use Domain\Sharing\Models\Share;
-use Illuminate\Support\Facades\DB;
+use Domain\Settings\Models\Setting;
 
 class MeteredBillingRestrictionsTest extends TestCase
 {
@@ -13,8 +13,9 @@ class MeteredBillingRestrictionsTest extends TestCase
     {
         parent::setUp();
 
-        DB::table('settings')->insert([
+        Setting::updateOrCreate([
             'name'  => 'subscription_type',
+        ], [
             'value' => 'metered',
         ]);
     }
diff --git a/tests/App/Socialite/SocialiteTest.php b/tests/App/Socialite/SocialiteTest.php
index b6e58ee0..af0f885d 100644
--- a/tests/App/Socialite/SocialiteTest.php
+++ b/tests/App/Socialite/SocialiteTest.php
@@ -1,7 +1,6 @@
 <?php
 namespace Tests\App\Socialite;
 
-use DB;
 use Storage;
 use Tests\TestCase;
 use App\Users\Models\User;
@@ -15,7 +14,7 @@ class SocialiteTest extends TestCase
     /**
      * @test
      */
-    public function it_socialite_redirect()
+    public function socialite_redirect_user()
     {
         $response = $this->get('api/socialite/google/redirect');
 
@@ -25,19 +24,8 @@ class SocialiteTest extends TestCase
     /**
      * @test
      */
-    public function it_socialite_callback()
+    public function socialite_execute_provider_callback()
     {
-        // Set default settings
-        DB::table('settings')->insert([
-            [
-                'name'  => 'registration',
-                'value' => 1,
-            ], [
-                'name'  => 'storage_default',
-                'value' => 5,
-            ],
-        ]);
-
         // Create fake image
         $fakeImage = UploadedFile::fake()
             ->image('fake-avatar.jpg');
diff --git a/tests/App/Users/SignFlowTest.php b/tests/App/Users/SignFlowTest.php
index f0567b57..509cde64 100644
--- a/tests/App/Users/SignFlowTest.php
+++ b/tests/App/Users/SignFlowTest.php
@@ -9,30 +9,28 @@ use Domain\Settings\Models\Setting;
 use Illuminate\Support\Facades\Password;
 use App\Users\Notifications\ResetPassword;
 use Illuminate\Auth\Notifications\VerifyEmail;
+use VueFileManager\Subscription\Domain\Plans\Models\Plan;
 
 class SignFlowTest extends TestCase
 {
     /**
      * @test
      */
-    public function it_register_user()
+    public function it_create_user_from_register_form()
     {
         collect([
-            [
-                'name'  => 'default_max_storage_amount',
-                'value' => 12,
-            ],
-            [
-                'name'  => 'registration',
-                'value' => 1,
-            ],
             [
                 'name'  => 'user_verification',
                 'value' => 1,
             ],
+            [
+                'name'  => 'default_max_storage_amount',
+                'value' => 10,
+            ],
         ])->each(function ($setting) {
-            Setting::create([
-                'name'  => $setting['name'],
+            Setting::updateOrCreate([
+                'name' => $setting['name'],
+            ], [
                 'value' => $setting['value'],
             ]);
         });
@@ -44,14 +42,17 @@ class SignFlowTest extends TestCase
             'name'                  => 'John Doe',
         ])->assertStatus(201);
 
-        $this->assertDatabaseHas('users', [
-            'email'             => 'john@doe.com',
-            'email_verified_at' => null,
-        ])->assertDatabaseHas('user_settings', [
-            'name' => 'John Doe',
-        ])->assertDatabaseHas('user_limitations', [
-            'max_storage_amount' => 12,
-        ]);
+        $this
+            ->assertDatabaseHas('users', [
+                'email'             => 'john@doe.com',
+                'email_verified_at' => null,
+            ])
+            ->assertDatabaseHas('user_settings', [
+                'name' => 'John Doe',
+            ])
+            ->assertDatabaseHas('user_limitations', [
+                'max_storage_amount' => 10,
+            ]);
 
         Storage::disk('local')
             ->assertExists('files/' . User::first()->id);
@@ -59,13 +60,60 @@ class SignFlowTest extends TestCase
         Notification::assertTimesSent(1, VerifyEmail::class);
     }
 
+    /**
+     * @test
+     */
+    public function it_register_user_when_metered_billing_is_active()
+    {
+        // Seed default settings
+        Setting::updateOrCreate([
+            'name' => 'subscription_type',
+        ], [
+            'value' => 'metered',
+        ]);
+
+        // Create metered plan
+        $plan = Plan::factory()
+            ->create([
+                'status'   => 'active',
+                'type'     => 'metered',
+                'currency' => 'USD',
+            ]);
+
+        $this->postJson('api/register', [
+            'email'                 => 'john@doe.com',
+            'password'              => 'SecretPassword',
+            'password_confirmation' => 'SecretPassword',
+            'name'                  => 'John Doe',
+        ])->assertStatus(201);
+
+        $this
+            ->assertDatabaseHas('users', [
+                'email' => 'john@doe.com',
+            ])
+            ->assertDatabaseHas('subscriptions', [
+                'status'    => 'active',
+                'name'      => $plan->name,
+                'ends_at'   => null,
+                'renews_at' => now()->addDays(config('subscription.metered_billing.settlement_period')),
+            ])
+            ->assertDatabaseHas('balances', [
+                'currency' => 'USD',
+                'amount'   => 0,
+            ])
+            ->assertDatabaseHas('user_settings', [
+                'name' => 'John Doe',
+            ]);
+    }
+
     /**
      * @test
      */
     public function it_try_register_when_registration_is_disabled()
     {
-        Setting::create([
+        Setting::updateOrCreate([
             'name'  => 'registration',
+        ], [
             'value' => 0,
         ]);
 
diff --git a/tests/TestCase.php b/tests/TestCase.php
index 373e3d1a..613dda0f 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -46,6 +46,18 @@ abstract class TestCase extends BaseTestCase
                 'name'  => 'language',
                 'value' => 'en',
             ],
+            [
+                'name'  => 'user_verification',
+                'value' => 0,
+            ],
+            [
+                'name'  => 'registration',
+                'value' => 1,
+            ],
+            [
+                'name'  => 'subscription_type',
+                'value' => null,
+            ],
         ]);
     }
 }