diff --git a/app/Http/Controllers/Oasis/ClientController.php b/app/Http/Controllers/Oasis/ClientController.php
index c55fa878..c8fe251b 100644
--- a/app/Http/Controllers/Oasis/ClientController.php
+++ b/app/Http/Controllers/Oasis/ClientController.php
@@ -73,10 +73,8 @@ class ClientController extends Controller
      */
     public function destroy(Client $client)
     {
-        if ($client->user_id === Auth::id()) {
-            $client->delete();
+        $client->delete();
 
-            return response('Done', 204);
-        }
+        return response('Done', 204);
     }
 }
diff --git a/app/Http/Controllers/Oasis/InvoiceController.php b/app/Http/Controllers/Oasis/InvoiceController.php
index 21bc69e4..2dd89149 100644
--- a/app/Http/Controllers/Oasis/InvoiceController.php
+++ b/app/Http/Controllers/Oasis/InvoiceController.php
@@ -127,6 +127,17 @@ class InvoiceController extends Controller
         );
     }
 
+    /**
+     * @param Invoice $invoice
+     * @throws \Exception
+     */
+    public function destroy(Invoice $invoice)
+    {
+        $invoice->delete();
+
+        return response('Done', 204);
+    }
+
     /**
      * @param StoreInvoiceRequest $request
      * @return mixed
diff --git a/app/Http/custom-helpers.php b/app/Http/custom-helpers.php
index 39dafe83..8224b6bd 100644
--- a/app/Http/custom-helpers.php
+++ b/app/Http/custom-helpers.php
@@ -85,7 +85,7 @@ function invoice_total_discount($invoice, $format = false)
     // Percent discount
     if ($invoice['discount_type'] === 'percent') {
 
-        $discount = (invoice_total_net($invoice) + invoice_total_tax($invoice)) * ($invoice['discount_rate'] / 100);
+        $discount = (int) (invoice_total_net($invoice) + invoice_total_tax($invoice)) * ($invoice['discount_rate'] / 100);
 
         if ($format) {
             return Cashier::formatAmount($discount * 100, $invoice['currency'], 'cs');
@@ -153,5 +153,5 @@ function invoice_total_tax($invoice, $format = false)
  */
 function format_to_currency($value, $currency = 'CZK', $locale = 'cs')
 {
-    return Cashier::formatAmount(($value * 100), $currency, $locale);
+    return Cashier::formatAmount(((int) $value * 100), $currency, $locale);
 }
\ No newline at end of file
diff --git a/app/Models/Oasis/Invoice.php b/app/Models/Oasis/Invoice.php
index 78d9ee0a..2f9ddbfd 100644
--- a/app/Models/Oasis/Invoice.php
+++ b/app/Models/Oasis/Invoice.php
@@ -7,6 +7,7 @@ use Auth;
 use Carbon\Carbon;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Facades\Storage;
 use Illuminate\Support\Str;
 use Laravel\Scout\Searchable;
 use TeamTNT\TNTSearch\Indexer\TNTIndexer;
@@ -70,5 +71,9 @@ class Invoice extends Model
 
             $invoice->currency = 'CZK';
         });
+
+        static::deleting(function ($invoice) {
+            Storage::delete(invoice_path($invoice));
+        });
     }
 }
diff --git a/routes/oasis.php b/routes/oasis.php
index 1f686e52..7eab00a5 100644
--- a/routes/oasis.php
+++ b/routes/oasis.php
@@ -30,6 +30,7 @@ Route::group(['middleware' => 'api', 'prefix' => '/api/oasis'], function () {
         Route::get('/search', [InvoiceController::class, 'search']);
 
         Route::post('/', [InvoiceController::class, 'store']);
+        Route::delete('/{invoice}', [InvoiceController::class, 'destroy']);
 
         Route::get('/profile', [InvoiceProfileController::class, 'show']);
         Route::post('/profile', [InvoiceProfileController::class, 'store']);
diff --git a/tests/Feature/Oasis/OasisClientTest.php b/tests/Feature/Oasis/OasisClientTest.php
index 37159c48..f0483bc3 100644
--- a/tests/Feature/Oasis/OasisClientTest.php
+++ b/tests/Feature/Oasis/OasisClientTest.php
@@ -125,6 +125,10 @@ class OasisClientTest extends TestCase
         $this->deleteJson("/api/oasis/clients/$client->id")
             ->assertStatus(204);
 
+        $this->assertDatabaseMissing('clients', [
+            'id' => $client->id
+        ]);
+
         Storage::disk('local')
             ->assertMissing('avatar/fake-image.jpg');
     }
diff --git a/tests/Feature/Oasis/OasisInvoiceTest.php b/tests/Feature/Oasis/OasisInvoiceTest.php
index c6529031..056fd9e4 100644
--- a/tests/Feature/Oasis/OasisInvoiceTest.php
+++ b/tests/Feature/Oasis/OasisInvoiceTest.php
@@ -494,6 +494,53 @@ class OasisInvoiceTest extends TestCase
         Notification::assertTimesSent(1, InvoiceDeliveryNotification::class);
     }
 
+    /**
+     * @test
+     */
+    public function user_delete_invoice()
+    {
+        $user = User::factory(User::class)
+            ->create(['role' => 'user']);
+
+        Sanctum::actingAs($user);
+
+        $profile = InvoiceProfile::factory(InvoiceProfile::class)
+            ->create(['user_id' => $user->id]);
+
+        $invoice = Invoice::factory(Invoice::class)
+            ->create([
+                'user_id'      => $user->id,
+                'invoice_type' => 'regular-invoice',
+                'user'         => $profile->toArray(),
+            ]);
+
+        \PDF::loadView('oasis.invoices.invoice', [
+            'invoice' => Invoice::find($invoice->id),
+            'user'    => $user,
+        ])
+            ->setPaper('a4')
+            ->setOrientation('portrait')
+            ->save(
+                storage_path("app/files/{$invoice->user_id}/invoice-{$invoice->id}.pdf")
+            );
+
+        Storage::disk('local')
+            ->assertExists(
+                invoice_path($invoice)
+            );
+
+        $this->delete("/api/oasis/invoices/$invoice->id");
+
+        $this->assertDatabaseMissing('invoices', [
+            'id' => $invoice->id
+        ]);
+
+        Storage::disk('local')
+            ->assertMissing(
+                invoice_path($invoice)
+            );
+    }
+
     /**
      * @test
      */