Giant Update

app/Models/BillingProfile.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class BillingProfile extends Model
+{
+    protected $guarded = ['id'];
+
+    protected function casts(): array
+    {
+        return ['tax_rate' => 'decimal:2'];
+    }
+
+    public function tenant()
+    {
+        return $this->belongsTo(Tenant::class);
+    }
+
+    public function customers()
+    {
+        return $this->hasMany(Customer::class);
+    }
+
+    public function invoices()
+    {
+        return $this->hasMany(Invoice::class);
+    }
+}