diff --git a/app/Http/Requests/UpdateAssetRequest.php b/app/Http/Requests/UpdateAssetRequest.php
index a749e5816b..1b379358f9 100644
--- a/app/Http/Requests/UpdateAssetRequest.php
+++ b/app/Http/Requests/UpdateAssetRequest.php
@@ -4,6 +4,7 @@ namespace App\Http\Requests;
 
 use App\Http\Requests\Traits\MayContainCustomFields;
 use App\Models\Asset;
+use App\Models\Setting;
 use Illuminate\Support\Facades\Gate;
 use Illuminate\Validation\Rule;
 
@@ -41,6 +42,12 @@ class UpdateAssetRequest extends ImageUploadRequest
             ],
         );
 
+        // if the purchase cost is passed in as a string **and** the digit_separator is ',' (as is common in the EU)
+        // then we tweak the purchase_cost rule to make it a string
+        if (Setting::getSettings()->digit_separator === '1.234,56' && is_string($this->input('purchase_cost'))) {
+            $rules['purchase_cost'] = ['nullable', 'string'];
+        }
+
         return $rules;
     }
 }
diff --git a/app/Models/SnipeModel.php b/app/Models/SnipeModel.php
index af12c3d29b..f26946d22a 100644
--- a/app/Models/SnipeModel.php
+++ b/app/Models/SnipeModel.php
@@ -21,6 +21,11 @@ class SnipeModel extends Model
      */
     public function setPurchaseCostAttribute($value)
     {
+        if (is_float($value)) {
+            //value is *already* a floating-point number. Just assign it directly
+            $this->attributes['purchase_cost'] = $value;
+            return;
+        }
         $value = Helper::ParseCurrency($value);
 
         if ($value == 0) {
diff --git a/tests/Feature/Assets/Api/UpdateAssetTest.php b/tests/Feature/Assets/Api/UpdateAssetTest.php
index 300d06ae50..7a4e411b3d 100644
--- a/tests/Feature/Assets/Api/UpdateAssetTest.php
+++ b/tests/Feature/Assets/Api/UpdateAssetTest.php
@@ -103,6 +103,102 @@ class UpdateAssetTest extends TestCase
         $this->assertEquals('2023-09-03 00:00:00', $updatedAsset->last_audit_date);
     }
 
+    public function testUpdatesPeriodAsCommaSeparatorForPurchaseCost()
+    {
+        $this->settings->set([
+            'default_currency' => 'EUR',
+            'digit_separator' => '1.234,56',
+        ]);
+
+        $original_asset = Asset::factory()->create();
+
+        $response = $this->actingAsForApi(User::factory()->superuser()->create())
+            ->patchJson(route('api.assets.update', $original_asset->id), [
+                'asset_tag' => 'random-string',
+                'model_id' => AssetModel::factory()->create()->id,
+                'status_id' => Statuslabel::factory()->create()->id,
+                // API also accepts string for comma separated values
+                'purchase_cost' => '1.112,34',
+            ])
+            ->assertStatusMessageIs('success');
+
+        $asset = Asset::find($response['payload']['id']);
+
+        $this->assertEquals(1112.34, $asset->purchase_cost);
+    }
+
+    public function testUpdatesFloatForPurchaseCost()
+    {
+        $this->settings->set([
+            'default_currency' => 'EUR',
+            'digit_separator' => '1.234,56',
+        ]);
+
+        $original_asset = Asset::factory()->create();
+
+        $response = $this->actingAsForApi(User::factory()->superuser()->create())
+            ->patchJson(route('api.assets.update', $original_asset->id), [
+                'asset_tag' => 'random-string',
+                'model_id' => AssetModel::factory()->create()->id,
+                'status_id' => Statuslabel::factory()->create()->id,
+                // API also accepts string for comma separated values
+                'purchase_cost' => 12.34,
+            ])
+            ->assertStatusMessageIs('success');
+
+        $asset = Asset::find($response['payload']['id']);
+
+        $this->assertEquals(12.34, $asset->purchase_cost);
+    }
+
+    public function testUpdatesUSDecimalForPurchaseCost()
+    {
+        $this->settings->set([
+            'default_currency' => 'EUR',
+            'digit_separator' => '1,234.56',
+        ]);
+
+        $original_asset = Asset::factory()->create();
+
+        $response = $this->actingAsForApi(User::factory()->superuser()->create())
+            ->patchJson(route('api.assets.update', $original_asset->id), [
+                'asset_tag' => 'random-string',
+                'model_id' => AssetModel::factory()->create()->id,
+                'status_id' => Statuslabel::factory()->create()->id,
+                // API also accepts string for comma separated values
+                'purchase_cost' => '5412.34', //NOTE - you cannot use thousands-separator here!!!!
+            ])
+            ->assertStatusMessageIs('success');
+
+        $asset = Asset::find($response['payload']['id']);
+
+        $this->assertEquals(5412.34, $asset->purchase_cost);
+    }
+
+    public function testUpdatesFloatUSDecimalForPurchaseCost()
+    {
+        $this->settings->set([
+            'default_currency' => 'EUR',
+            'digit_separator' => '1,234.56',
+        ]);
+
+        $original_asset = Asset::factory()->create();
+
+        $response = $this->actingAsForApi(User::factory()->superuser()->create())
+            ->patchJson(route('api.assets.update', $original_asset->id), [
+                'asset_tag' => 'random-string',
+                'model_id' => AssetModel::factory()->create()->id,
+                'status_id' => Statuslabel::factory()->create()->id,
+                // API also accepts string for comma separated values
+                'purchase_cost' => 12.34,
+            ])
+            ->assertStatusMessageIs('success');
+
+        $asset = Asset::find($response['payload']['id']);
+
+        $this->assertEquals(12.34, $asset->purchase_cost);
+    }
+
     public function testAssetEolDateIsCalculatedIfPurchaseDateUpdated()
     {
         $asset = Asset::factory()->laptopMbp()->noPurchaseOrEolDate()->create();