diff --git a/database/migrations/create_order_items_table.php.stub b/database/migrations/create_order_items_table.php.stub
index 67280b6..60b5969 100644
--- a/database/migrations/create_order_items_table.php.stub
+++ b/database/migrations/create_order_items_table.php.stub
@@ -27,6 +27,7 @@ return new class extends Migration
             $table->integer('unit_price');
             $table->decimal('tax_percentage', 6, 4);
             $table->unsignedBigInteger('order_id')->nullable();
+            $table->text('metadata')->nullable();
             $table->timestamps();
         });
     }
diff --git a/database/migrations/create_orders_table.php.stub b/database/migrations/create_orders_table.php.stub
index e3ee6c7..25ba6de 100644
--- a/database/migrations/create_orders_table.php.stub
+++ b/database/migrations/create_orders_table.php.stub
@@ -30,6 +30,7 @@ return new class extends Migration
             $table->string('mollie_payment_id')->nullable();
             $table->string('mollie_payment_status', 16)->nullable();
             $table->datetime('processed_at')->nullable();
+            $table->text('metadata')->nullable();
             $table->timestamps();
         });
     }
diff --git a/database/migrations/create_refund_items_table.php.stub b/database/migrations/create_refund_items_table.php.stub
index a228178..d85ef73 100644
--- a/database/migrations/create_refund_items_table.php.stub
+++ b/database/migrations/create_refund_items_table.php.stub
@@ -25,6 +25,7 @@ return new class extends Migration
             $table->unsignedInteger('quantity');
             $table->integer('unit_price');
             $table->decimal('tax_percentage', 6, 4);
+            $table->text('metadata')->nullable();
             $table->timestamps();
         });
     }
diff --git a/database/migrations/create_refunds_table.php.stub b/database/migrations/create_refunds_table.php.stub
index 744a206..3314563 100644
--- a/database/migrations/create_refunds_table.php.stub
+++ b/database/migrations/create_refunds_table.php.stub
@@ -23,6 +23,7 @@ return new class extends Migration
             $table->string('mollie_refund_status');
             $table->integer('total');
             $table->string('currency', 3);
+            $table->text('metadata')->nullable();
             $table->timestamps();
         });
     }
diff --git a/database/migrations/create_subscriptions_table.php.stub b/database/migrations/create_subscriptions_table.php.stub
index 86dc362..9b5cc49 100644
--- a/database/migrations/create_subscriptions_table.php.stub
+++ b/database/migrations/create_subscriptions_table.php.stub
@@ -27,6 +27,7 @@ return new class extends Migration
             $table->datetime('cycle_started_at');
             $table->datetime('cycle_ends_at')->nullable();
             $table->unsignedBigInteger('scheduled_order_item_id')->nullable();
+            $table->text('metadata')->nullable();
             $table->timestamps();
         });
     }
diff --git a/database/migrations/upgrade_to_cashier_v3.php.stub b/database/migrations/upgrade_to_cashier_v3.php.stub
index 5d453ae..fcbc8b2 100644
--- a/database/migrations/upgrade_to_cashier_v3.php.stub
+++ b/database/migrations/upgrade_to_cashier_v3.php.stub
@@ -6,6 +6,14 @@ use Illuminate\Support\Facades\Schema;
 
 return new class extends Migration
 {
+    const METADATA_FIELD_TABLES = [
+        'orders',
+        'order_items',
+        'refunds',
+        'refund_items',
+        'subscriptions',
+    ];
+
     /**
      * Run the migrations.
      *
@@ -13,7 +21,7 @@ return new class extends Migration
      */
     public function up(): void
     {
-        //
+        $this->addMetadataFieldToTables(self::METADATA_FIELD_TABLES);
     }
 
     /**
@@ -23,6 +31,20 @@ return new class extends Migration
      */
     public function down(): void
     {
-       //
+        $this->dropMetadataFieldFromTables(self::METADATA_FIELD_TABLES);
+    }
+
+    protected function addMetadataFieldToTables(array $tables): void
+    {
+        collect($tables)->each(fn($table) => Schema::table($table, function (Blueprint $table) {
+            $table->text('metadata')->nullable();
+        }));
+    }
+
+    protected function dropMetadataFieldFromTables(array $tables): void
+    {
+        collect($tables)->each(fn($table) => Schema::table($table, function (Blueprint $table) {
+            $table->dropColumn('metadata');
+        }));
     }
 };