diff --git a/app/Domains/Attachable/Enums/AttachmentType.php b/app/Domains/Attachable/Enums/AttachmentType.php
new file mode 100644
index 0000000..3b7237d
--- /dev/null
+++ b/app/Domains/Attachable/Enums/AttachmentType.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Domains\Attachable\Enums;
+
+enum AttachmentType: string
+{
+    case Image = 'image';
+    case Video = 'video';
+    case Pdf = 'pdf';
+    case Document = 'document';
+    case Audio = 'audio';
+    case Other = 'other';
+}
diff --git a/app/Domains/Attachable/Models/Attachment.php b/app/Domains/Attachable/Models/Attachment.php
index ef5e514..f6592e0 100644
--- a/app/Domains/Attachable/Models/Attachment.php
+++ b/app/Domains/Attachable/Models/Attachment.php
@@ -2,6 +2,7 @@
 
 namespace App\Domains\Attachable\Models;
 
+use App\Domains\Attachable\Enums\AttachmentType;
 use Illuminate\Database\Eloquent\Attributes\Fillable;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
@@ -35,6 +36,7 @@ class Attachment extends Model
     {
         return [
             'attachable_id' => 'integer',
+            'type' => AttachmentType::class,
             'size' => 'integer',
         ];
     }
diff --git a/database/migrations/2026_06_25_000500_create_attachments_table.php b/database/migrations/2026_06_25_000500_create_attachments_table.php
index 30543d2..8f32728 100644
--- a/database/migrations/2026_06_25_000500_create_attachments_table.php
+++ b/database/migrations/2026_06_25_000500_create_attachments_table.php
@@ -18,7 +18,7 @@ return new class extends Migration
             $table->uuid('key')->unique();
             $table->string('path');
             $table->string('filename');
-            $table->string('type')->nullable();
+            $table->string('type');
             $table->string('mime_type');
             $table->string('extension', 20)->nullable();
             $table->unsignedBigInteger('size')->default(0);
diff --git a/tests/Feature/Attachable/AttachmentTest.php b/tests/Feature/Attachable/AttachmentTest.php
new file mode 100644
index 0000000..cff0ba7
--- /dev/null
+++ b/tests/Feature/Attachable/AttachmentTest.php
@@ -0,0 +1,65 @@
+<?php
+
+namespace Tests\Feature\Attachable;
+
+use App\Domains\Attachable\Enums\AttachmentType;
+use App\Domains\Attachable\Models\Attachment;
+use App\Domains\Tenant\Models\Tenant;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AttachmentTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_it_persists_and_casts_attachment_type(): void
+    {
+        $tenant = Tenant::query()->create([
+            'codigo' => 'acme',
+            'nombre' => 'Acme',
+            'dominio' => 'acme.com',
+        ]);
+
+        $attachment = Attachment::query()->create([
+            'attachable_type' => $tenant->getMorphClass(),
+            'attachable_id' => $tenant->getKey(),
+            'path' => 'attachments/acme/logo.png',
+            'filename' => 'logo.png',
+            'type' => AttachmentType::Image,
+            'mime_type' => 'image/png',
+            'extension' => 'png',
+            'size' => 1234,
+        ]);
+
+        $this->assertSame(AttachmentType::Image, $attachment->type);
+        $this->assertDatabaseHas('attachments', [
+            'id' => $attachment->id,
+            'type' => AttachmentType::Image->value,
+        ]);
+
+        $freshAttachment = Attachment::query()->findOrFail($attachment->id);
+
+        $this->assertSame(AttachmentType::Image, $freshAttachment->type);
+    }
+
+    public function test_it_requires_attachment_type(): void
+    {
+        $tenant = Tenant::query()->create([
+            'codigo' => 'globex',
+            'nombre' => 'Globex',
+            'dominio' => 'globex.com',
+        ]);
+
+        $this->expectException(\Illuminate\Database\QueryException::class);
+
+        Attachment::query()->create([
+            'attachable_type' => $tenant->getMorphClass(),
+            'attachable_id' => $tenant->getKey(),
+            'path' => 'attachments/globex/manual.pdf',
+            'filename' => 'manual.pdf',
+            'mime_type' => 'application/pdf',
+            'extension' => 'pdf',
+            'size' => 9876,
+        ]);
+    }
+}