diff --git a/app/Casts/MoneyCast.php b/app/Casts/MoneyCast.php
new file mode 100644
index 0000000..0d7e38b
--- /dev/null
+++ b/app/Casts/MoneyCast.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace App\Casts;
+
+use Illuminate\Contracts\Database\Eloquent\CastsAttributes;
+use Illuminate\Database\Eloquent\Model;
+
+class MoneyCast implements CastsAttributes
+{
+    /**
+     * Cast the given value.
+     *
+     * @param  array<string, mixed>  $attributes
+     */
+    public function get(Model $model, string $key, mixed $value, array $attributes): float
+    {
+        return $value / 100;
+    }
+
+    /**
+     * Prepare the given value for storage.
+     *
+     * @param  array<string, mixed>  $attributes
+     */
+    public function set(Model $model, string $key, mixed $value, array $attributes): int
+    {
+        return (int) round($value * 100);
+    }
+}
diff --git a/app/Enums/InvoiceStatus.php b/app/Enums/InvoiceStatus.php
new file mode 100644
index 0000000..5f8d995
--- /dev/null
+++ b/app/Enums/InvoiceStatus.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace App\Enums;
+
+enum InvoiceStatus: string
+{
+    case DRAFT = 'draft';
+    case POSTED = 'posted';
+    case VOID = 'void';
+    case PAID = 'paid';
+}
diff --git a/app/Models/Invoice.php b/app/Models/Invoice.php
index cbc8919..5984941 100644
--- a/app/Models/Invoice.php
+++ b/app/Models/Invoice.php
@@ -2,9 +2,22 @@
 
 namespace App\Models;
 
+use App\Casts\MoneyCast;
+use App\Enums\InvoiceStatus;
 use Illuminate\Database\Eloquent\Model;
 
 class Invoice extends Model
 {
-    //
+    protected $casts = [
+        'total' => MoneyCast::class,
+        'status' => InvoiceStatus::class,
+        'invoice_date' => 'date',
+        'due_date' => 'date',
+        'date_sent' => 'date',
+    ];
+
+    public function formattedTotal(): string
+    {
+        return '$'.number_format($this->total, 2);
+    }
 }
diff --git a/database/migrations/2026_01_28_024527_create_invoices_table.php b/database/migrations/2026_01_28_024527_create_invoices_table.php
index f58911c..30c80f1 100644
--- a/database/migrations/2026_01_28_024527_create_invoices_table.php
+++ b/database/migrations/2026_01_28_024527_create_invoices_table.php
@@ -16,7 +16,13 @@ return new class extends Migration
             $table->id();
             $table->string('invoice_number')->unique();
             $table->foreignIdFor(Client::class);
-            $table->json('lines');
+            $table->string('status')->default('draft');
+            $table->date('invoice_date')->nullable();
+            $table->date('date_sent')->nullable();
+            $table->date('due_date')->nullable();
+            $table->integer('total');
+            $table->text('notes')->nullable();
+            $table->text('internal_notes')->nullable();
             $table->timestamps();
         });
     }