diff --git a/app/Console/Commands/CreateTestData.php b/app/Console/Commands/CreateTestData.php
index 88d4eebc7bf0..a0d2d5be226e 100644
--- a/app/Console/Commands/CreateTestData.php
+++ b/app/Console/Commands/CreateTestData.php
@@ -22,6 +22,7 @@ use App\Models\PaymentType;
 use App\Models\User;
 use App\Repositories\InvoiceRepository;
 use App\Utils\Traits\MakesHash;
+use Carbon\Carbon;
 use Faker\Factory;
 use Illuminate\Console\Command;
 use Illuminate\Support\Facades\Cache;
@@ -232,6 +233,17 @@ class CreateTestData extends Command
 
             $this->createClient($company, $user);
         }
+
+        foreach($company->clients as $client) {
+
+
+                $this->createInvoice($client);
+                $this->createQuote($client);
+                $this->createExpense($client);
+                $this->createVendor($client);    
+
+        }
+        
     }
 
     private function createClient($company, $user)
@@ -254,16 +266,8 @@ class CreateTestData extends Command
                 'company_id' => $company->id
             ]);
 
-        $y = $this->count * rand(1, 5);
 
-        $this->info("Creating {$y} invoices & quotes");
 
-        for ($x=0; $x<$y; $x++) {
-            $this->createInvoice($client);
-            $this->createQuote($client);
-            $this->createExpense($client);
-            $this->createVendor($client);
-        }
     }
 
     private function createExpense($client)
@@ -308,7 +312,8 @@ class CreateTestData extends Command
 
         $invoice = InvoiceFactory::create($client->company->id, $client->user->id);//stub the company and user_id
         $invoice->client_id = $client->id;
-        $invoice->date = $faker->date();
+//        $invoice->date = $faker->date();
+        $invoice->date = Carbon::now()->subDays(rand(0,90));
 
         $invoice->line_items = $this->buildLineItems();
         $invoice->uses_inclusive_taxes = false;
diff --git a/app/Http/Controllers/OpenAPI/ExpenseSchema.php b/app/Http/Controllers/OpenAPI/ExpenseSchema.php
new file mode 100644
index 000000000000..50f8366eb902
--- /dev/null
+++ b/app/Http/Controllers/OpenAPI/ExpenseSchema.php
@@ -0,0 +1,43 @@
+<?php
+/**
+ * @OA\Schema(
+ *   schema="Expense",
+ *   type="object",
+ *       @OA\Property(property="id", type="string", example="Opnel5aKBz", description="_________"),
+ *       @OA\Property(property="user_id", type="string", example="", description="__________"),
+ *       @OA\Property(property="assigned_user_id", type="string", example="", description="__________"),
+ *       @OA\Property(property="company_id", type="string", example="", description="________"),
+ *       @OA\Property(property="client_id", type="string", example="", description="________"),
+ *       @OA\Property(property="invoice_id", type="string", example="", description="________"),
+ *       @OA\Property(property="bank_id", type="string", example="", description="________"),
+ *       @OA\Property(property="invoice_currency_id", type="string", example="", description="________"),
+ *       @OA\Property(property="expense_currency_id", type="string", example="", description="________"),
+ *       @OA\Property(property="invoice_category_id", type="string", example="", description="________"),
+ *       @OA\Property(property="payment_type_id", type="string", example="", description="________"),
+ *       @OA\Property(property="recurring_expense_id", type="string", example="", description="________"),
+ *       @OA\Property(property="private_notes", type="string", example="", description="________"),
+ *       @OA\Property(property="public_notes", type="string", example="", description="________"),
+ *       @OA\Property(property="transaction_reference", type="string", example="", description="________"),
+ *       @OA\Property(property="transcation_id", type="string", example="", description="________"),
+ *       @OA\Property(property="custom_value1", type="string", example="", description="________"),
+ *       @OA\Property(property="custom_value2", type="string", example="", description="________"),
+ *       @OA\Property(property="custom_value3", type="string", example="", description="________"),
+ *       @OA\Property(property="custom_value4", type="string", example="", description="________"),
+ *       @OA\Property(property="tax_name1", type="string", example="", description="________"),
+ *       @OA\Property(property="tax_name2", type="string", example="", description="________"),
+ *       @OA\Property(property="tax_rate1", type="number", format="float", example="10.00", description="_________"),
+ *       @OA\Property(property="tax_rate2", type="number", format="float", example="10.00", description="_________"),
+ *       @OA\Property(property="tax_name3", type="string", example="", description="________"),
+ *       @OA\Property(property="tax_rate3", type="number", format="float", example="10.00", description="_________"),
+ *       @OA\Property(property="amount", type="number", format="float", example="10.00", description="_________"),
+ *       @OA\Property(property="foreign_amount", type="number", format="float", example="10.00", description="_________"),
+ *       @OA\Property(property="exchange_rate", type="number", format="float", example="0.80", description="_________"),
+ *       @OA\Property(property="expense_date", type="string", example="", description="________"),
+ *       @OA\Property(property="payment_date", type="string", example="", description="________"),
+ *       @OA\Property(property="should_be_invoiced", type="boolean", example=true, description="_________"),
+ *       @OA\Property(property="is_deleted", type="boolean", example=true, description="_________"),
+ *       @OA\Property(property="invoice_documents", type="boolean", example=true, description=""),
+ *       @OA\Property(property="updated_at", type="number", format="integer", example="1434342123", description="Timestamp"),
+ *       @OA\Property(property="archived_at", type="number", format="integer", example="1434342123", description="Timestamp"),
+ * )
+ */
diff --git a/app/Http/Controllers/OpenAPI/VendorContact.php b/app/Http/Controllers/OpenAPI/VendorContact.php
new file mode 100644
index 000000000000..f078087f9ccc
--- /dev/null
+++ b/app/Http/Controllers/OpenAPI/VendorContact.php
@@ -0,0 +1,23 @@
+<?php
+/**
+ * @OA\Schema(
+ *   schema="VendorContact",
+ *   type="object",
+ *       @OA\Property(property="id", type="string", example="Opnel5aKBz", description="_________"),
+ *       @OA\Property(property="user_id", type="string", example="", description="__________"),
+ *       @OA\Property(property="company_id", type="string", example="", description="________"),
+ *       @OA\Property(property="vendor_id", type="string", example="", description="________"),
+ *       @OA\Property(property="first_name", type="string", example="", description="________"),
+ *       @OA\Property(property="last_name", type="string", example="", description="________"),
+ *       @OA\Property(property="phone", type="string", example="", description="________"),
+ *       @OA\Property(property="custom_value1", type="string", example="", description="________"),
+ *       @OA\Property(property="custom_value2", type="string", example="", description="________"),
+ *       @OA\Property(property="custom_value3", type="string", example="", description="________"),
+ *       @OA\Property(property="custom_value4", type="string", example="", description="________"),
+ *       @OA\Property(property="email", type="string", example="", description="________"),
+ *       @OA\Property(property="is_primary", type="boolean", example=true, description="________"),
+ *       @OA\Property(property="created_at", type="number", format="integer", example="134341234234", description="Timestamp"),
+ *       @OA\Property(property="updated_at", type="number", format="integer", example="134341234234", description="Timestamp"),
+ *       @OA\Property(property="deleted_at", type="number", format="integer", example="134341234234", description="Timestamp"),
+ * )
+ */
diff --git a/app/Http/Controllers/OpenAPI/VendorSchema.php b/app/Http/Controllers/OpenAPI/VendorSchema.php
new file mode 100644
index 000000000000..bfc7968d9748
--- /dev/null
+++ b/app/Http/Controllers/OpenAPI/VendorSchema.php
@@ -0,0 +1,44 @@
+<?php
+/**
+ * @OA\Schema(
+ *   schema="Vendor",
+ *   type="object",
+ *       @OA\Property(property="id", type="string", example="Opnel5aKBz", description="_________"),
+ *       @OA\Property(property="user_id", type="string", example="", description="__________"),
+ *       @OA\Property(property="assigned_user_id", type="string", example="", description="__________"),
+ *       @OA\Property(property="company_id", type="string", example="", description="________"),
+ *       @OA\Property(property="client_id", type="string", example="", description="________"),
+ *       @OA\Property(
+ *       	property="contacts",
+ *        	type="array",
+ *        	@OA\Items(
+ *
+ *           	ref="#/components/schemas/VendorContact",
+ *          ),
+ *       ),
+ *       @OA\Property(property="name", type="string", example="", description="________"),
+ *       @OA\Property(property="website", type="string", example="", description="________"),
+ *       @OA\Property(property="private_notes", type="string", example="", description="________"),
+ *       @OA\Property(property="industry_id", type="string", example="", description="________"),
+ *       @OA\Property(property="size_id", type="string", example="", description="________"),
+ *       @OA\Property(property="address1", type="string", example="", description="________"),
+ *       @OA\Property(property="address2", type="string", example="", description="________"),
+ *       @OA\Property(property="city", type="string", example="", description="________"),
+ *       @OA\Property(property="state", type="string", example="", description="________"),
+ *       @OA\Property(property="postal_code", type="string", example="", description="________"),
+ *       @OA\Property(property="work_phone", type="string", example="555-3434-3434", description="The client phone number"),
+ *       @OA\Property(property="country_id", type="string", example="", description="________"),
+ *       @OA\Property(property="currency_id", type="string", example="4", description="________"),
+ *       @OA\Property(property="custom_value1", type="string", example="", description="________"),
+ *       @OA\Property(property="custom_value2", type="string", example="", description="________"),
+ *       @OA\Property(property="custom_value3", type="string", example="", description="________"),
+ *       @OA\Property(property="custom_value4", type="string", example="", description="________"),
+ *       @OA\Property(property="vat_number", type="string", example="", description="________"),
+ *       @OA\Property(property="id_number", type="string", example="", description="________"),
+ *       @OA\Property(property="is_deleted", type="boolean", example=true, description="________"),
+ *       @OA\Property(property="last_login", type="number", format="integer", example="134341234234", description="Timestamp"),
+ *       @OA\Property(property="created_at", type="number", format="integer", example="134341234234", description="Timestamp"),
+ *       @OA\Property(property="updated_at", type="number", format="integer", example="134341234234", description="Timestamp"),
+ *       @OA\Property(property="settings",ref="#/components/schemas/CompanySettings"),
+ * )
+ */
diff --git a/app/Http/Controllers/PaymentController.php b/app/Http/Controllers/PaymentController.php
index dab446a8341f..76f86f862aa9 100644
--- a/app/Http/Controllers/PaymentController.php
+++ b/app/Http/Controllers/PaymentController.php
@@ -17,6 +17,7 @@ use App\Http\Requests\Payment\ActionPaymentRequest;
 use App\Http\Requests\Payment\CreatePaymentRequest;
 use App\Http\Requests\Payment\DestroyPaymentRequest;
 use App\Http\Requests\Payment\EditPaymentRequest;
+use App\Http\Requests\Payment\RefundPaymentRequest;
 use App\Http\Requests\Payment\ShowPaymentRequest;
 use App\Http\Requests\Payment\StorePaymentRequest;
 use App\Http\Requests\Payment\UpdatePaymentRequest;
@@ -624,4 +625,60 @@ class PaymentController extends BaseController
                 break;
         }
     }
+
+    /**
+     * Store a newly created refund.
+     *
+     * @param  \App\Http\Requests\Payment\RefundPaymentRequest  $request  The request
+     *
+     * @return \Illuminate\Http\Response
+     *
+     *
+     *
+     * @OA\Post(
+     *      path="/api/v1/payments/refund",
+     *      operationId="storeRefund",
+     *      tags={"payments"},
+     *      summary="Adds a Refund",
+     *      description="Adds an Refund to the system",
+     *      @OA\Parameter(ref="#/components/parameters/X-Api-Secret"),
+     *      @OA\Parameter(ref="#/components/parameters/X-Api-Token"),
+     *      @OA\Parameter(ref="#/components/parameters/X-Requested-With"),
+     *      @OA\Parameter(ref="#/components/parameters/include"),
+     *      @OA\RequestBody(
+     *         description="The refund request",
+     *         required=true,
+     *         @OA\JsonContent(ref="#/components/schemas/Payment"),
+     *     ),
+     *      @OA\Response(
+     *          response=200,
+     *          description="Returns the saved Payment object",
+     *          @OA\Header(header="X-API-Version", ref="#/components/headers/X-API-Version"),
+     *          @OA\Header(header="X-RateLimit-Remaining", ref="#/components/headers/X-RateLimit-Remaining"),
+     *          @OA\Header(header="X-RateLimit-Limit", ref="#/components/headers/X-RateLimit-Limit"),
+     *          @OA\JsonContent(ref="#/components/schemas/Payment"),
+     *       ),
+     *       @OA\Response(
+     *          response=422,
+     *          description="Validation error",
+     *          @OA\JsonContent(ref="#/components/schemas/ValidationError"),
+     *
+     *       ),
+     *       @OA\Response(
+     *           response="default",
+     *           description="Unexpected Error",
+     *           @OA\JsonContent(ref="#/components/schemas/Error"),
+     *       ),
+     *     )
+     *
+     */
+    public function refund(RefundPaymentRequest $request)
+    {
+        \Log::error("Payment id = ".$request->input('id'));
+        
+        $payment = Payment::whereId($request->input('id'))->first();
+
+        return $this->itemResponse($payment);
+    }
+
 }
diff --git a/app/Http/Requests/Payment/RefundPaymentRequest.php b/app/Http/Requests/Payment/RefundPaymentRequest.php
new file mode 100644
index 000000000000..dae5731d654c
--- /dev/null
+++ b/app/Http/Requests/Payment/RefundPaymentRequest.php
@@ -0,0 +1,59 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com)
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2020. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://opensource.org/licenses/AAL
+ */
+
+namespace App\Http\Requests\Payment;
+
+use App\Http\Requests\Request;
+use App\Http\ValidationRules\ValidRefundableInvoices;
+use App\Models\Payment;
+use App\Utils\Traits\MakesHash;
+
+class RefundPaymentRequest extends Request
+{
+	use MakesHash;
+    /**
+     * Determine if the user is authorized to make this request.
+     *
+     * @return bool
+     */
+
+    public function authorize() : bool
+    {
+        return auth()->user()->isAdmin();
+    }
+    
+    protected function prepareForValidation()
+    {
+        $input = $this->all();
+
+        if(!isset($input['gateway_refund']))
+        	$input['gateway_refund'] = false;
+
+        if(isset($input['id']))
+        	$input['id'] = $this->decodePrimaryKey($input['id']);
+
+	    $this->replace($input);
+    }
+
+    public function rules()
+    {
+        $rules = [
+            'id' => 'required',
+            'refunded' => 'numeric',
+            'date' => 'required',
+            'invoices.*.invoice_id' => 'required',
+            'invoices.*.refunded' => 'required',
+            'invoices' => new ValidRefundableInvoices(),
+        ];
+
+        return $rules;
+    }
+}
diff --git a/app/Http/ValidationRules/ValidRefundableInvoices.php b/app/Http/ValidationRules/ValidRefundableInvoices.php
new file mode 100644
index 000000000000..264f32559382
--- /dev/null
+++ b/app/Http/ValidationRules/ValidRefundableInvoices.php
@@ -0,0 +1,83 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com)
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2020. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://opensource.org/licenses/AAL
+ */
+
+namespace App\Http\ValidationRules;
+
+use App\Models\Invoice;
+use App\Models\Payment;
+use App\Utils\Traits\MakesHash;
+use Illuminate\Contracts\Validation\Rule;
+
+/**
+ * Class ValidRefundableInvoices
+ * @package App\Http\ValidationRules
+ */
+class ValidRefundableInvoices implements Rule
+{
+    use MakesHash;
+
+    /**
+     * @param string $attribute
+     * @param mixed $value
+     * @return bool
+     */
+    
+    private $error_msg;
+
+    public function passes($attribute, $value)
+    {
+        $payment = Payment::whereId($this->decodePrimaryKey(request()->input('id')))->first();
+
+        if($request->has('refunded') && ($request->input('refunded') > $payment->amount)){
+            $this->error_msg = "Attempting to refunded more than payment amount, enter a value equal to or lower than the payment amount of ". $payment->amount;
+            return false;
+        }
+
+        /*If no invoices has been sent, then we apply the payment to the client account*/
+        $invoices = [];
+
+        if (is_array($value)) {
+            $invoices = Invoice::whereIn('id', array_column($value, 'invoice_id'))->company()->get();
+        }
+        else
+            return true;
+
+        foreach ($invoices as $invoice) {
+            if (! $invoice->isRefundable()) {
+                $this->error_msg = "One or more of these invoices have been paid";
+                return false;
+            }
+
+
+            foreach ($value as $val) {
+               if ($val['invoice_id'] == $invoice->id) {
+
+                    if($val['refunded'] > ($invoice->amount - $invoice->balance))
+                        $this->error_msg = "Attempting to refund more than is possible for an invoice";
+                    return false;
+               }
+            }
+
+        }
+
+
+
+        return true;
+    }
+
+    /**
+     * @return string
+     */
+    public function message()
+    {
+        return $this->error_msg;
+    }
+}
diff --git a/app/Models/Invoice.php b/app/Models/Invoice.php
index e103436fd61e..22ea2d6a090d 100644
--- a/app/Models/Invoice.php
+++ b/app/Models/Invoice.php
@@ -231,6 +231,17 @@ class Invoice extends BaseModel
         }
     }
 
+    public function isRefundable() : bool
+    {
+        if($this->is_deleted){
+            return false;
+        } elseif ($this->balance <= 0)
+            return false;
+
+
+        return true;
+    }
+
     public static function badgeForStatus(int $status)
     {
         switch ($status) {
diff --git a/app/Models/Project.php b/app/Models/Project.php
new file mode 100644
index 000000000000..78b390e2bf26
--- /dev/null
+++ b/app/Models/Project.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\SoftDeletes;
+use Laracasts\Presenter\PresentableTrait;
+
+/**
+ * Class Project.
+ */
+class Project extends BaseModel
+{
+    // Expense Categories
+    use SoftDeletes;
+    use PresentableTrait;
+
+    /**
+     * @var array
+     */
+    protected $dates = ['deleted_at'];
+
+    /**
+     * @var array
+     */
+    protected $fillable = [
+        'name',
+        'task_rate',
+        'private_notes',
+        'due_date',
+        'budgeted_hours',
+        'custom_value1',
+        'custom_value2',
+    ];
+
+
+    /**
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+     */
+    public function company()
+    {
+        return $this->belongsTo(Company::class);
+    }
+
+    /**
+     * @return mixed
+     */
+    public function client()
+    {
+        return $this->belongsTo(Client::class)->withTrashed();
+    }
+
+    // /**
+    //  * @return \Illuminate\Database\Eloquent\Relations\HasMany
+    //  */
+    // public function tasks()
+    // {
+    //     return $this->hasMany('App\Models\Task');
+    // }
+
+
+}
+
diff --git a/app/Models/QuoteInvitation.php b/app/Models/QuoteInvitation.php
index f50826020da2..61cc8dcc4ae5 100644
--- a/app/Models/QuoteInvitation.php
+++ b/app/Models/QuoteInvitation.php
@@ -12,12 +12,14 @@
 namespace App\Models;
 
 use App\Models\Quote;
+use App\Utils\Traits\Inviteable;
 use App\Utils\Traits\MakesDates;
 use Illuminate\Database\Eloquent\Model;
 
 class QuoteInvitation extends BaseModel
 {
     use MakesDates;
+    use Inviteable;
 
     protected $fillable = [
         'id',
diff --git a/routes/api.php b/routes/api.php
index a544d2daab72..ef0c4db5fcee 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -74,6 +74,8 @@ Route::group(['middleware' => ['api_db','api_secret_check','token_auth','locale'
 
   Route::resource('payments', 'PaymentController'); // name = (payments. index / create / show / update / destroy / edit
 
+  Route::post('payments/refund', 'PaymentController@refund')->name('payments.refund');
+
   Route::post('payments/bulk', 'PaymentController@bulk')->name('payments.bulk');
 
 //  Route::resource('users', 'UserController')->middleware('password_protected'); // name = (users. index / create / show / update / destroy / edit
diff --git a/tests/Feature/ClientApiTest.php b/tests/Feature/ClientApiTest.php
index 2b610f595c84..6b5f9c5df533 100644
--- a/tests/Feature/ClientApiTest.php
+++ b/tests/Feature/ClientApiTest.php
@@ -116,7 +116,7 @@ class ClientApiTest extends TestCase
             ])->post('/api/v1/clients/bulk?action=archive', $data);
 
         $arr = $response->json();
-\Log::error($arr);
+
         $this->assertNotNull($arr['data'][0]['archived_at']);
     }
  
diff --git a/tests/Feature/PaymentTest.php b/tests/Feature/PaymentTest.php
index fcb218948671..9b00fb9999f8 100644
--- a/tests/Feature/PaymentTest.php
+++ b/tests/Feature/PaymentTest.php
@@ -330,7 +330,7 @@ class PaymentTest extends TestCase
 
             $payment_id = $arr['data']['id'];
 
-            $payment = Payment::find($this->decodePrimaryKey($payment_id))->first();
+            $payment = Payment::whereId($this->decodePrimaryKey($payment_id))->first();
 
             $this->assertNotNull($payment);
             $this->assertNotNull($payment->invoices());
@@ -405,7 +405,7 @@ class PaymentTest extends TestCase
 
             $payment_id = $arr['data']['id'];
 
-            $payment = Payment::find($this->decodePrimaryKey($payment_id))->first();
+            $payment = Payment::whereId($this->decodePrimaryKey($payment_id))->first();
 
             $this->assertNotNull($payment);
             $this->assertNotNull($payment->invoices());
@@ -466,7 +466,7 @@ class PaymentTest extends TestCase
 
             $payment_id = $arr['data']['id'];
 
-            $payment = Payment::find($this->decodePrimaryKey($payment_id))->first();
+            $payment = Payment::whereId($this->decodePrimaryKey($payment_id))->first();
 
             $this->assertNotNull($payment);
             $this->assertNotNull($payment->invoices());
@@ -786,7 +786,7 @@ class PaymentTest extends TestCase
             
             $payment_id = $arr['data']['id'];
 
-            $payment = Payment::find($this->decodePrimaryKey($payment_id))->first();
+            $payment = Payment::whereId($this->decodePrimaryKey($payment_id))->first();
 
             $this->assertEquals($payment->amount, 15);
             $this->assertEquals($payment->applied, 10);
@@ -890,7 +890,7 @@ class PaymentTest extends TestCase
             
             $payment_id = $arr['data']['id'];
 
-            $payment = Payment::find($this->decodePrimaryKey($payment_id))->first();
+            $payment = Payment::whereId($this->decodePrimaryKey($payment_id))->first();
 
             $this->assertEquals($payment->amount, 20);
             $this->assertEquals($payment->applied, 10);
@@ -1005,7 +1005,7 @@ class PaymentTest extends TestCase
 
             $this->assertEquals($this->invoice->amount, $arr['data']['amount']);
 
-            $payment = Payment::find($this->decodePrimaryKey($payment_id))->first();
+            $payment = Payment::whereId($this->decodePrimaryKey($payment_id))->first();
 
             $this->assertNotNull($payment);
             $this->assertNotNull($payment->invoices());
@@ -1066,4 +1066,81 @@ class PaymentTest extends TestCase
 
     }
 
+
+    public function testBasicRefundValidation()
+    {
+        $client = ClientFactory::create($this->company->id, $this->user->id);
+        $client->save();
+
+        $this->invoice = InvoiceFactory::create($this->company->id,$this->user->id);//stub the company and user_id
+        $this->invoice->client_id = $client->id;
+        $this->invoice->status_id = Invoice::STATUS_SENT;
+
+        $this->invoice->line_items = $this->buildLineItems();
+        $this->invoice->uses_inclusive_Taxes = false;
+
+        $this->invoice->save();
+
+        $this->invoice_calc = new InvoiceSum($this->invoice);
+        $this->invoice_calc->build();
+
+        $this->invoice = $this->invoice_calc->getInvoice();
+        $this->invoice->save();
+
+        $data = [
+            'amount' => 50,
+            'client_id' => $client->hashed_id,
+            // 'invoices' => [
+            //     [
+            //     'invoice_id' => $this->invoice->hashed_id,
+            //     'amount' => $this->invoice->amount
+            //     ],
+            // ],
+            'date' => '2020/12/12',
+
+        ];
+
+        $response = $this->withHeaders([
+            'X-API-SECRET' => config('ninja.api_secret'),
+            'X-API-TOKEN' => $this->token,
+        ])->post('/api/v1/payments', $data);
+
+        
+        $arr = $response->json();
+        $response->assertStatus(200);
+
+        $payment_id = $arr['data']['id'];
+
+        $this->assertEquals(50, $arr['data']['amount']);
+
+        $payment = Payment::whereId($this->decodePrimaryKey($payment_id))->first();
+
+        $this->assertNotNull($payment);
+        // $this->assertNotNull($payment->invoices());
+        // $this->assertEquals(1, $payment->invoices()->count());
+        
+
+        $data = [
+            'id' => $this->encodePrimaryKey($payment->id),
+            'refunded' => 50,
+            // 'invoices' => [
+            //     [
+            //     'invoice_id' => $this->invoice->hashed_id,
+            //     'amount' => $this->invoice->amount
+            //     ],
+            // ],
+            'date' => '2020/12/12',
+        ];
+
+
+        $response = $this->withHeaders([
+            'X-API-SECRET' => config('ninja.api_secret'),
+            'X-API-TOKEN' => $this->token,
+        ])->post('/api/v1/payments/refund', $data);
+
+        $arr = $response->json();
+
+        $response->assertStatus(200);
+    }
+
 }