diff --git a/app/Http/Traits/UniqueSerialTrait.php b/app/Http/Traits/UniqueSerialTrait.php
deleted file mode 100644
index b5529d7cf830..000000000000
--- a/app/Http/Traits/UniqueSerialTrait.php
+++ /dev/null
@@ -1,25 +0,0 @@
-<?php
-
-namespace App\Http\Traits;
-
-use App\Models\Setting;
-
-trait UniqueSerialTrait
-{
-    /**
-     * Prepare a unique_ids rule, adding a model identifier if required.
-     *
-     * @param array  $parameters
-     * @param string $field
-     *
-     * @return string
-     */
-    protected function prepareUniqueSerialRule($parameters, $field)
-    {
-        if ($settings = Setting::getSettings()) {
-            if ($settings->unique_serial == '1') {
-                return 'unique_undeleted:'.$this->table.','.$this->getKey();
-            }
-        }
-    }
-}
diff --git a/app/Models/Asset.php b/app/Models/Asset.php
index a7d4d7442a5d..ea436f013820 100644
--- a/app/Models/Asset.php
+++ b/app/Models/Asset.php
@@ -6,7 +6,6 @@
 use App\Events\CheckoutableCheckedOut;
 use App\Exceptions\CheckoutNotAllowed;
 use App\Helpers\Helper;
-use App\Http\Traits\UniqueSerialTrait;
 use App\Http\Traits\UniqueUndeletedTrait;
 use App\Models\Traits\Acceptable;
 use App\Models\Traits\Searchable;
@@ -32,7 +31,7 @@ class Asset extends Depreciable
     protected $presenter = \App\Presenters\AssetPresenter::class;
 
     use CompanyableTrait;
-    use HasFactory, Loggable, Requestable, Presentable, SoftDeletes, ValidatingTrait, UniqueUndeletedTrait, UniqueSerialTrait;
+    use HasFactory, Loggable, Requestable, Presentable, SoftDeletes, ValidatingTrait, UniqueUndeletedTrait;
 
     public const LOCATION = 'location';
     public const ASSET = 'asset';
@@ -100,7 +99,7 @@ public function declinedCheckout(User $declinedBy, $signature)
         'expected_checkin' => 'date|nullable',
         'location_id'     => 'exists:locations,id|nullable',
         'rtd_location_id' => 'exists:locations,id|nullable',
-        'asset_tag'      => 'required|min:1|max:255|unique_undeleted:assets,asset_tag',
+        'asset_tag'      => 'required|min:1|max:255|unique_undeleted:assets,asset_tag|not_array',
         'purchase_date'   => 'date|date_format:Y-m-d|nullable',
         'serial'          => 'unique_serial|nullable',
         'purchase_cost'   => 'numeric|nullable|gte:0',
diff --git a/app/Providers/ValidationServiceProvider.php b/app/Providers/ValidationServiceProvider.php
index 30c5a0197ea1..55d8efa3ec90 100644
--- a/app/Providers/ValidationServiceProvider.php
+++ b/app/Providers/ValidationServiceProvider.php
@@ -3,6 +3,7 @@
 namespace App\Providers;
 
 use App\Models\Department;
+use App\Models\Setting;
 use DB;
 use Illuminate\Support\ServiceProvider;
 use Illuminate\Validation\Rule;
@@ -72,6 +73,17 @@ public function boot()
                 }
             });
 
+
+        Validator::extend('unique_serial', function ($attribute, $value, $parameters, $validator) {
+            if(Setting::getSettings()->unique_serial == '1') {
+                $count = DB::table('assets')->select('id')->where('serial', '=', $value)->whereNull('deleted_at')->count();
+
+                return $count < 1;
+            } else {
+                return true;
+            }
+        });
+
         // Prevent circular references
         //
         // Example usage in Location model where parent_id references another Location:
diff --git a/resources/lang/en/validation.php b/resources/lang/en/validation.php
index bb35515fdb19..85e844781204 100644
--- a/resources/lang/en/validation.php
+++ b/resources/lang/en/validation.php
@@ -96,6 +96,7 @@
     'unique_undeleted'     => 'The :attribute must be unique.',
     'non_circular'         => 'The :attribute must not create a circular reference.',
     'not_array'            => 'The :attribute field cannot be an array.',
+    'unique_serial'        => 'The :attribute must be unique.',
     'disallow_same_pwd_as_user_fields' => 'Password cannot be the same as the username.',
     'letters'              => 'Password must contain at least one letter.',
     'numbers'              => 'Password must contain at least one number.',