diff --git a/app/Http/Requests/BankTransaction/BulkBankTransactionRequest.php b/app/Http/Requests/BankTransaction/BulkBankTransactionRequest.php
index a95fb7fd23a3..74eed3c7a414 100644
--- a/app/Http/Requests/BankTransaction/BulkBankTransactionRequest.php
+++ b/app/Http/Requests/BankTransaction/BulkBankTransactionRequest.php
@@ -22,14 +22,17 @@ class BulkBankTransactionRequest extends Request
      */
     public function authorize() : bool
     {
-        return auth()->user()->isAdmin();
+        /** @var \App\Models\User $user **/
+        $user = auth()->user();
+
+        return $user->isAdmin();
     }
 
-    public function rules()
+    public function rules(): array
     {
         return [
             'ids' => 'required|bail|array',
-            'action' => 'in:archive,restore,delete,convert_matched'
+            'action' => 'in:archive,restore,delete,convert_matched,unlink'
         ];
     }
 }
diff --git a/app/Models/BankTransaction.php b/app/Models/BankTransaction.php
index ed030f0a138f..f67e75a9d634 100644
--- a/app/Models/BankTransaction.php
+++ b/app/Models/BankTransaction.php
@@ -130,22 +130,27 @@ class BankTransaction extends BaseModel
         return self::class;
     }
 
-    public function company()
+    public function company(): \Illuminate\Database\Eloquent\Relations\BelongsTo
     {
         return $this->belongsTo(Company::class);
     }
 
-    public function vendor()
+    public function vendor(): \Illuminate\Database\Eloquent\Relations\BelongsTo
     {
         return $this->belongsTo(Vendor::class);
     }
 
-    public function user()
+    public function expense(): \Illuminate\Database\Eloquent\Relations\BelongsTo
+    {
+        return $this->belongsTo(Expense::class);
+    }
+
+    public function user(): \Illuminate\Database\Eloquent\Relations\BelongsTo
     {
         return $this->belongsTo(User::class)->withTrashed();
     }
 
-    public function bank_integration()
+    public function bank_integration(): \Illuminate\Database\Eloquent\Relations\BelongsTo
     {
         return $this->belongsTo(BankIntegration::class)->withTrashed();
     }
@@ -155,7 +160,7 @@ class BankTransaction extends BaseModel
         return $this->belongsTo(Account::class)->withTrashed();
     }
 
-    public function payment()
+    public function payment(): \Illuminate\Database\Eloquent\Relations\BelongsTo
     {
         return $this->belongsTo(Payment::class)->withTrashed();
     }
diff --git a/app/Repositories/BankTransactionRepository.php b/app/Repositories/BankTransactionRepository.php
index 2f2cd569dc22..d9db85172a13 100644
--- a/app/Repositories/BankTransactionRepository.php
+++ b/app/Repositories/BankTransactionRepository.php
@@ -41,4 +41,24 @@ class BankTransactionRepository extends BaseRepository
 
         $bts = (new MatchBankTransactions(auth()->user()->company()->id, auth()->user()->company()->db, $data))->handle();
     }
+
+    public function unlink($bt)
+    {
+        if($bt->payment()->exists()){
+            $bt->payment->transaction_id = null;
+            $bt->payment_id = null;
+        }
+
+        if($bt->expense()->exists()) {
+            $bt->expense->transaction_id = null;
+            $bt->expense_id = null;      
+        }
+        
+        $bt->vendor_id = null;
+        $bt->status_id = 1;
+        $bt->invoice_ids = null;
+        $bt->ninja_category_id = null;
+        $bt->push();
+    
+    }
 }
diff --git a/app/Utils/Traits/ClientGroupSettingsSaver.php b/app/Utils/Traits/ClientGroupSettingsSaver.php
index fa9d5fca2ae3..50afb4e09131 100644
--- a/app/Utils/Traits/ClientGroupSettingsSaver.php
+++ b/app/Utils/Traits/ClientGroupSettingsSaver.php
@@ -31,7 +31,7 @@ trait ClientGroupSettingsSaver
      * Works for groups|clients|companies
      * @param  array|object $settings The request input settings array
      * @param  object $entity   The entity which the settings belongs to
-     * @return void
+     * @return array|object
      */
     public function saveSettings($settings, $entity)
     {
diff --git a/phpstan.neon b/phpstan.neon
index 11965c7dd020..8cd766f92d33 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -15,4 +15,6 @@ parameters:
     reportUnmatchedIgnoredErrors: false
     ignoreErrors:
         - '#Call to an undefined method [a-zA-Z0-9\\_]+::company\(\)#' 
-        - '#Call to an undefined method [a-zA-Z0-9\\_]+::entityFilter\(\)#'
\ No newline at end of file
+        - '#Call to an undefined method [a-zA-Z0-9\\_]+::entityFilter\(\)#'
+        - '#Call to an undefined method [a-zA-Z0-9\\_]+::withTrashed()\(\)#'
+        - '#Undefined method#'
\ No newline at end of file
diff --git a/tests/Feature/BankTransactionApiTest.php b/tests/Feature/BankTransactionApiTest.php
index c3c0373d483d..79496014fd28 100644
--- a/tests/Feature/BankTransactionApiTest.php
+++ b/tests/Feature/BankTransactionApiTest.php
@@ -11,12 +11,14 @@
 
 namespace Tests\Feature;
 
+use Tests\TestCase;
+use Tests\MockAccountData;
+use App\Models\BankIntegration;
+use App\Models\BankTransaction;
 use App\Utils\Traits\MakesHash;
 use Illuminate\Database\Eloquent\Model;
-use Illuminate\Foundation\Testing\DatabaseTransactions;
 use Illuminate\Support\Facades\Session;
-use Tests\MockAccountData;
-use Tests\TestCase;
+use Illuminate\Foundation\Testing\DatabaseTransactions;
 
 /**
  * @test
@@ -109,4 +111,41 @@ class BankTransactionApiTest extends TestCase
 
         $this->assertTrue($arr['data'][0]['is_deleted']);
     }
+
+    public function testBankTransactionUnlink()
+    {
+        BankTransaction::truncate();
+        
+        $bi = BankIntegration::factory()->create([
+            'account_id' => $this->account->id,
+            'company_id' => $this->company->id,
+            'user_id' => $this->user->id,
+        ]);
+
+        $bank_transaction = BankTransaction::factory()->create([
+            'bank_integration_id' => $bi->id,
+            'user_id' => $this->user->id,
+            'company_id' => $this->company->id,
+            'payment_id' => $this->payment->id,
+            'expense_id' => $this->expense->id,
+            'invoice_ids' => $this->invoice->hashed_id,
+        ]);
+        
+        $data = [
+            'ids' => [$this->encodePrimaryKey($bank_transaction->id)],
+        ];
+
+        $response = $this->withHeaders([
+            'X-API-SECRET' => config('ninja.api_secret'),
+            'X-API-TOKEN' => $this->token,
+        ])->post('/api/v1/bank_transactions/bulk?action=unlink', $data);
+
+        $arr = $response->json();
+
+        $this->assertEquals(1, $arr['data'][0]['status_id']);
+        $this->assertEquals("", $arr['data'][0]['payment_id']);
+        $this->assertEquals("", $arr['data'][0]['invoice_ids']);
+        $this->assertEquals("", $arr['data'][0]['expense_id']);
+    }
+
 }