diff --git a/app/Export/CSV/ExpenseExport.php b/app/Export/CSV/ExpenseExport.php
new file mode 100644
index 000000000000..4249a685839d
--- /dev/null
+++ b/app/Export/CSV/ExpenseExport.php
@@ -0,0 +1,164 @@
+<?php
+/**
+ * Expense Ninja (https://expenseninja.com).
+ *
+ * @link https://github.com/expenseninja/expenseninja source repository
+ *
+ * @copyright Copyright (c) 2021. Expense Ninja LLC (https://expenseninja.com)
+ *
+ * @license https://www.elastic.co/licensing/elastic-license
+ */
+
+namespace App\Export\CSV;
+
+use App\Libraries\MultiDB;
+use App\Models\Client;
+use App\Models\Company;
+use App\Models\Expense;
+use App\Transformers\ExpenseTransformer;
+use App\Utils\Ninja;
+use Illuminate\Support\Facades\App;
+use League\Csv\Writer;
+
+class ExpenseExport
+{
+    private $company;
+
+    private $report_keys;
+
+    private $expense_transformer;
+
+    private array $entity_keys = [
+        'amount' => 'amount',
+        'category' => 'category_id',
+        'client' => 'client_id',
+        'custom_value1' => 'custom_value1',
+        'custom_value2' => 'custom_value2',
+        'custom_value3' => 'custom_value3',
+        'custom_value4' => 'custom_value4',
+        'currency' => 'currency_id',
+        'date' => 'date',
+        'exchange_rate' => 'exchange_rate',
+        'converted_amount' => 'foreign_amount',
+        'invoice_currency_id' => 'invoice_currency_id',
+        'payment_date' => 'payment_date',
+        'number' => 'number',
+        'payment_type_id' => 'payment_type_id',
+        'private_notes' => 'private_notes',
+        'project' => 'project_id',
+        'public_notes' => 'public_notes',
+        'tax_amount1' => 'tax_amount1',
+        'tax_amount2' => 'tax_amount2',
+        'tax_amount3' => 'tax_amount3',
+        'tax_name1' => 'tax_name1',
+        'tax_name2' => 'tax_name2',
+        'tax_name3' => 'tax_name3',
+        'tax_rate1' => 'tax_rate1',
+        'tax_rate2' => 'tax_rate2',
+        'tax_rate3' => 'tax_rate3',
+        'transaction_reference' => 'transaction_reference',
+        'vendor' => 'vendor_id',
+        'invoice' => 'invoice_id',
+    ];
+
+    private array $decorate_keys = [
+        'client',
+        'currency',
+        'invoice',
+        'category',
+        'vendor',
+        'project',
+        'payment_type_id',
+    ];
+
+    public function __construct(Company $company, array $report_keys)
+    {
+        $this->company = $company;
+        $this->report_keys = $report_keys;
+        $this->expense_transformer = new ExpenseTransformer();
+    }
+
+    public function run()
+    {
+
+        MultiDB::setDb($this->company->db);
+        App::forgetInstance('translator');
+        App::setLocale($this->company->locale());
+        $t = app('translator');
+        $t->replace(Ninja::transformTranslations($this->company->settings));
+
+        //load the CSV document from a string
+        $this->csv = Writer::createFromString();
+
+        //insert the header
+        $this->csv->insertOne($this->buildHeader());
+
+        Expense::with('client')->where('company_id', $this->company->id)
+                            ->where('is_deleted',0)
+                            ->cursor()
+                            ->each(function ($expense){
+
+                                $this->csv->insertOne($this->buildRow($expense)); 
+
+                            });
+
+
+        return $this->csv->toString(); 
+
+    }
+
+    private function buildHeader() :array
+    {
+
+        $header = [];
+
+        foreach(array_keys($this->report_keys) as $key)
+            $header[] = ctrans("texts.{$key}");
+
+        return $header;
+    }
+
+    private function buildRow(Expense $expense) :array
+    {
+
+        $transformed_expense = $this->expense_transformer->transform($expense);
+
+        $entity = [];
+
+        foreach(array_values($this->report_keys) as $key){
+
+                $entity[$key] = $transformed_expense[$key];
+        }
+
+        return $this->decorateAdvancedFields($expense, $entity);
+
+    }
+
+    private function decorateAdvancedFields(Expense $expense, array $entity) :array
+    {
+        if(array_key_exists('currency_id', $entity))
+            $entity['currency_id'] = $expense->currency ? $expense->currency->code : "";
+
+        if(array_key_exists('client_id', $entity))
+            $entity['client_id'] = $expense->client ? $expense->client->present()->name() : "";
+
+        if(array_key_exists('invoice_id', $entity))
+            $entity['invoice_id'] = $expense->invoice ? $expense->invoice->number : "";
+
+        if(array_key_exists('category_id', $entity))
+            $entity['category_id'] = $expense->category ? $expense->category->name : "";
+
+        if(array_key_exists('vendor_id', $entity))
+            $entity['vendor_id'] = $expense->vendor ? $expense->vendor->name : "";
+
+        if(array_key_exists('payment_type_id', $entity))
+            $entity['payment_type_id'] = $expense->payment_type ? $expense->payment_type->name : "";
+
+        if(array_key_exists('project_id', $entity))
+            $entity['project_id'] = $expense->project ? $expense->project->name : "";
+
+
+        return $entity;
+    }
+
+}
diff --git a/app/Models/Expense.php b/app/Models/Expense.php
index 27f1273113d1..c730654e680a 100644
--- a/app/Models/Expense.php
+++ b/app/Models/Expense.php
@@ -106,4 +106,24 @@ class Expense extends BaseModel
     {
         return ctrans('texts.expense');
     }
+
+    public function currency()
+    {
+        return $this->belongsTo(Currency::class);
+    }
+
+    public function category()
+    {
+        return $this->belongsTo(ExpenseCategory::class);
+    }
+
+    public function payment_type()
+    {
+        return $this->belongsTo(PaymentType::class);
+    }
+
+    public function project()
+    {
+        return $this->belongsTo(Project::class);
+    }    
 }