diff --git a/classes/Accounting.php b/classes/Accounting.php
index 31334e208..61df8ff1c 100644
--- a/classes/Accounting.php
+++ b/classes/Accounting.php
@@ -40,6 +40,8 @@ class AccountingCore
 			VALUES %s';
 		
 		$values = '';
+		
+		// Build the query for the update 
 		foreach($assoZoneShopList as $asso)
 			if (array_key_exists('id_zone', $asso) && 
 					array_key_exists('id_shop', $asso) &&
@@ -106,4 +108,4 @@ class AccountingCore
 			FROM `'._DB_PREFIX_.'accounting_zone_shop`
 			WHERE `id_shop` = '.(int)$id_shop);
 	}
-}
\ No newline at end of file
+}
diff --git a/classes/tax/Tax.php b/classes/tax/Tax.php
index eb100b8e9..276c3c9c2 100644
--- a/classes/tax/Tax.php
+++ b/classes/tax/Tax.php
@@ -40,6 +40,9 @@ class TaxCore extends ObjectModel
 	/** @var boolean true if the tax has been historized */
 	public 		$deleted = 0;
 
+	/** @var string Account Number */
+	public 		$account_number;
+
  	protected 	$fieldsRequired = array('rate');
  	protected 	$fieldsValidate = array('rate' => 'isFloat');
  	protected 	$fieldsRequiredLang = array('name');
@@ -62,6 +65,7 @@ class TaxCore extends ObjectModel
 		$fields['rate'] = (float)($this->rate);
 		$fields['active'] = (int)($this->active);
 		$fields['deleted'] = (int)($this->deleted);
+		$fields['account_number'] = $this->account_number;
 		return $fields;
 	}
 
@@ -267,5 +271,18 @@ class TaxCore extends ObjectModel
 
 		return $tax_calculator->getTotalRate();
 	}
+	
+	/**
+	 * Returns the Account number of a Tax
+	 *
+	 * @param integer $id_tax
+	 * @return string Account Number
+	 */
+	public static function getAccountNumberByIdTax($id_tax)
+	{
+		return Db::getInstance()->getValue('
+			SELECT account_number FROM `'._DB_PREFIX_.'tax`
+			WHERE id_tax = '.(int)$id_tax);	
+	}
 }
 
diff --git a/controllers/admin/AdminAccountingExportController.php b/controllers/admin/AdminAccountingExportController.php
index 6f8ead142..82ecb641e 100644
--- a/controllers/admin/AdminAccountingExportController.php
+++ b/controllers/admin/AdminAccountingExportController.php
@@ -27,11 +27,410 @@
 
 class AdminAccountingExportControllerCore extends AdminController
 {
+	public $exportTypeList = array();
+	
+	public $pathTheme = '';
+	
+	public $defaultType = 'block_global_export';
+	
+	public $downloadDir = '';
+	
+	public $downloadFile = '';
+	
+	public $exportSelected = '';
+	
+	public $fd = NULL;
+	
+	public $date = array(
+		'begin' => '',
+		'end' => ''
+	);
+	
+	public $prevent = array(
+		'errors' => array(),
+		'warns' => array(),
+		'hints' => array());
+	
+	public $exportedFilePath = '';
+	
+	public $clientPrefix = '';
+	
 	public function __construct()
 	{
 		$this->className = 'Accounting';
 	 	$this->context = Context::getContext();
+	 	$this->pathAccountExportTpl = _PS_ADMIN_DIR_.'/themes/template/accounting_export/';
+	 	$this->content = '';
+	 	$this->downloadDir = _PS_ROOT_DIR_.'/download/';
+	 	$this->exportSelected = 'global_export';
 	 	
+	 	$this->initExportFieldList();	
 		parent::__construct();
 	}
+	
+	/**
+	 * Init the available fields by export type with associated translation 
+	 *
+	 */
+	private function initExportFieldList()
+	{
+		$this->exportTypeList = array(
+			'global_export' => array(
+				'name' => $this->l('Global Export'),
+				'type' => 'global_export',
+				'file' => 'accounting_global_export.csv',
+				'fields' => array(
+					'invoice_date' => $this->l('Invoice Date'),
+					'journal' => $this->l('Journal'),
+					'account' => $this->l('Account'),
+					'invoice_number' => $this->l('Invoice Number'),
+					'credit' => $this->l('Credit (TTC)'),
+					'debit' => $this->l('Debit (TVA+HT)'),
+					'transaction_id' => $this->l('Transaction Number'),
+					'payment_type' => $this->l('Payment Type'),
+					'currency_code' => $this->l('Currency Code'),
+					'wording' => $this->l('Wording')
+				)
+			),
+			'reconciliation_export' => array(
+				'name' => $this->l('Reconciliation Export'),
+				'type' => 'reconciliation_export',
+				'file' => 'accounting_reconciliation_export.csv',
+				'fields' => array(
+					'invoice_number' => $this->l('Invoice Number'),
+					'wording' => $this->l('Wording'),
+					'total_paid_real' => $this->l('Total TTC'),
+					'invoice_date' => $this->l('Invoice Date'),
+					'transaction_id' => $this->l('Transaction Number'),
+					'account_client' => $this->l('Account client')
+				)
+			) 
+	 	);
+	}
+	
+	/**
+	 * Init the block Menu 
+	 *
+	 */
+	private function initMenu()
+	{
+		$this->context->smarty->assign(array(
+			'exportTypeList' => $this->exportTypeList,
+			'defaultType' => $this->defaultType,
+			'preventList' => $this->prevent
+			)
+		);
+		
+		$this->content .= $this->context->smarty->fetch($this->pathAccountExportTpl.'menu.tpl');
+	}
+	
+	/**
+	 * AdminController::setMedia() override
+	 * @see AdminController::setMedia()
+	 */
+	public function setMedia()
+	{
+		parent::setMedia();
+		
+		$this->addJqueryUi('ui.datepicker');
+	}
+	
+	private function checkRights()
+	{
+		if (!is_writeable($this->downloadDir))
+			$this->prevent['errors'][] = $this->l('The download folder doesn\'t have the sufficient right…');
+		if (!($this->fd = fopen($this->downloadFile, 'w+')))
+			$this->prevent['errors'][] = $this->l('The file can\'t be opened or created, please check the right');
+		@chmod($this->downloadFile, 0777);
+	}
+	
+	/**
+	 * AdminController::init() override
+	 * @see AdminController::init()
+	 */
+	public function initContent()
+	{	
+		$this->initMenu();
+		
+		$this->context->smarty->assign(array(
+			'clientPrefix' => Configuration::get('ACCOUNTING_CLIENT_PREFIX_EXPORT'),
+			'pathAccountExportTpl' => $this->pathAccountExportTpl,
+			'urlDownload' => Tools::getShopDomain().'/download/'
+		));
+		
+		foreach($this->exportTypeList as $exportType)
+		{
+			$pathTpl = $this->pathAccountExportTpl.$exportType['type'].'.tpl';
+			$pathExportedFile = $this->downloadDir.$exportType['file'];
+			
+			$this->context->smarty->assign(array(
+				'title' => $exportType['name'],
+				'type' => $exportType['type'],
+				'existingExport' => file_exists($this->downloadDir.$exportType['file']) ? true : false
+			));
+			
+			if (file_exists($pathTpl))
+				$this->content .= $this->context->smarty->fetch($pathTpl);
+		}
+		parent::initContent();
+	}
+	
+	/**
+	 * AdminController::postProcess() override
+	 * @see AdminController::postProcess()
+	 */
+	public function postProcess()
+	{
+		if (Tools::isSubmit('submitAccountingExportType'))
+		{
+			$this->date['begin'] = Tools::getValue('beginDate');
+			$this->date['end'] = Tools::getValue('endDate');
+			$this->clientPrefix = Tools::getValue('clientPrefix');
+			$this->exportSelected = Tools::getValue('exportType');
+			$this->downloadFile = $this->downloadDir.'accounting_'.$this->exportSelected.'.csv';
+			
+			Configuration::updateValue('ACCOUNTING_CLIENT_PREFIX_EXPORT', $this->clientPrefix);
+			// Depends of the number of order and the range dates
+			// Switch to ajax if any problem with time occured 
+			ini_set('max_execution_time', 0);
+			
+			switch($this->exportSelected)
+			{
+				case 'reconciliation_export':
+					$this->runReconciliationExport();
+					break;
+				case 'global_export':
+					$this->runGlobalExport();
+					break;
+				default:
+					// If not defined, set export type to default
+					$this->exportSelected = 'global_export';
+			}
+			
+			// Set back the default block type to display
+			$this->defaultType = 'block_'.$this->exportSelected.'';
+		}
+		else if (($type = Tools::getValue('download')) && array_key_exists($type, $this->exportTypeList))
+			$this->downloadFile($this->exportTypeList[$type]['file']);
+	}
+	
+	/**
+	 * Write the exported content tout a file
+	 * @var array $list Result of the SQL query
+	 */
+	private function writeExportToFile($list)
+	{
+		$this->checkRights();
+		
+		if (!count($this->prevent['errors']) && $this->fd !== NULL)
+		{
+			$buffer = '';
+			foreach($this->exportTypeList[$this->exportSelected]['fields'] as $key => $translation)
+				$buffer .= $translation.';';
+			fwrite($this->fd, rtrim($buffer, ';')."\r\n");
+			
+			// Bufferize line by line and write it to the file
+			// Todo :: Allow to configure the size of the buffer before flushing it
+			foreach($list as $row)
+			{
+				$buffer = '';
+				foreach ($row as $col => $val)
+					$buffer .= $val.';';
+				fwrite($this->fd, rtrim($buffer, ';')."\r\n");
+			}
+		}
+	}
+	
+	/**
+	 * Start the reconciliation export type 
+	 *
+	 */
+	private function runReconciliationExport()
+	{
+		$query = '
+			SELECT
+				CONCAT(\''.Configuration::get('PS_INVOICE_PREFIX').'\', LPAD(o.`invoice_number`, 6, 0)) AS invoice_number,
+				CASE 
+ 					WHEN (a.`company` != "" AND a.`company` IS NOT NULL) THEN a.`company`
+					ELSE  a.`lastname`
+				END AS wording,
+				o.`total_paid_real`,
+				o.`invoice_date`,
+				pcc.`transaction_id`,
+				CONCAT(\''.$this->clientPrefix.'\', LPAD(c.`id_customer`, 6, 0)) AS account_client
+				FROM `'._DB_PREFIX_.'orders` o
+				LEFT JOIN `'._DB_PREFIX_.'customer` c ON c.`id_customer` = o.`id_customer`
+				LEFT JOIN `'._DB_PREFIX_.'address` a ON a.`id_customer` = o.`id_customer` 
+				LEFT JOIN `'._DB_PREFIX_.'payment_cc` pcc ON pcc.`id_order` = o.`id_order`
+				WHERE o.`valid` = 1
+				AND o.`invoice_date` 
+					BETWEEN \''.pSQL($this->date['begin']).'\' 
+					AND \''.pSQL($this->date['end']).'\'';
+		
+		$list = Db::getInstance()->executeS($query);
+		
+		$this->writeExportToFile($list);
+	}
+	
+	/**
+	 * Generate a line for the CSV for the global export  
+	 * @var array $row - Line from Database query
+	 * @var int $line_number - Request line generation
+	 */
+	private function createLine($row, $line_number)
+	{
+		$line = array();
+		
+		// Default Values
+		$line[0] = $row['invoice_date'];
+		$line[1] = Tools::getValue('journal'); 
+		$line[2] = ''; // account number
+		$line[3] = $row['invoice_number'];
+		$line[4] = 0.00; // Credit TTC
+		$line[5] = 0.00; // Debit HT (used for tax too)
+		$line[6] = $row['transaction_id'];
+		$line[7] = $row['payment_type'];
+		$line[8] = $row['currency_code'];
+		$line[9] = $row['wording'];
+		
+		// Override case depending of the whished line
+		switch($line_number)
+		{
+			case 0:
+				$line[2] = $row['account_client'];
+				$line[4] = 'Wait Franck Commit';
+				break;
+			case 1:
+				$line[2] = !empty($row['account']) ? $row['account'] : 
+					Configuration::get('default_account_number', NULL, NULL, $row['id_shop']);
+				$line[5] = $row['product_price_ht'];
+				break;
+			case 2:
+				$line[2] = $row['tax_accounting_account_number'];
+				$line[5] = 'Wait Franck Commit';
+				break;
+		}
+		return $line;
+	}
+	
+	/**
+	 * Build an proper list to be written into the export file 
+	 * @var array $db_details - Content from datatbase
+	 */
+	private function buildGlobalExportlist($db_details)
+	{
+		// List use to write data in csv file
+		$list = array();
+		
+		// Cache list to merge easily the content with the same accounting for different invoice number
+		$acc_invoice_list = array();
+		$num = 0;
+		foreach($db_details as $row)
+		{
+			// Init the list
+			if (!array_key_exists($row['invoice_number'], $acc_invoice_list))
+				$acc_invoice_list[$row['invoice_number']] = array();
+			
+			// Need to Generate 3 lines for a product
+			for ($i = 0; $i < 3; ++$i)
+				// Create line for the two first line and check if a tax exist for the last one
+				if ($i < 2 || ($i == 2 && $row['id_tax'] !== NULL))
+				{
+					$tmp = $this->createLine($row, $i);
+					// Check if the account number hadn't already be use for this invoice number
+					if (!array_key_exists($tmp[2], $acc_invoice_list[$tmp[3]]))
+					{
+						// Create a new entry and cache the account number for this invoice number
+						$acc_invoice_list[$tmp[3]][$tmp[2]] = $num;
+						$list[$num] = $tmp;
+						++$num;
+					}
+					else
+					{
+						// Merge amount retrieving the position in the list of the invoice number
+						$pos = $acc_invoice_list[$tmp[3]][$tmp[2]];
+						if (!$i)
+							$list[$pos][4] += $tmp[4];
+						else
+							$list[$pos][5] += $tmp[5];
+					}
+				}
+		}
+		return $list;
+	}
+	
+	/**
+	 * Start the global export type 
+	 *
+	 */
+	private function runGlobalExport()
+	{
+		$query = '
+			SELECT 
+				od.`id_order`,
+				o.`invoice_date`,
+				CASE 
+ 					WHEN (acc_pzs.`account_number` != "" AND acc_pzs.`account_number` IS NOT NULL) THEN acc_pzs.`account_number`
+ 					WHEN (acc_zs.`account_number` != "" AND acc_zs.`account_number` IS NOT NULL) THEN acc_zs.`account_number`
+ 					ELSE  ""
+				END AS account,
+				CONCAT(\''.Configuration::get('PS_INVOICE_PREFIX').'\', LPAD(o.`invoice_number`, 6, 0)) AS invoice_number,
+				o.`total_paid_real`,
+				od.`product_price` AS product_price_ht,
+				pcc.`transaction_id`,
+				o.`payment` AS payment_type,
+				currency.`iso_code` as currency_code,
+				CONCAT(\''.$this->clientPrefix.'\', LPAD(customer.`id_customer`, 6, 0)) AS account_client,
+				CASE 
+ 					WHEN (a.`company` != "" AND a.`company` IS NOT NULL) THEN a.`company`
+					ELSE  a.`lastname`
+				END AS wording,
+				t.account_number AS tax_accounting_account_number,
+				t.id_tax,
+				o.id_shop
+				FROM `'._DB_PREFIX_.'orders` o
+				LEFT JOIN `'._DB_PREFIX_.'customer` customer ON customer.`id_customer` = o.`id_customer`
+				LEFT JOIN `'._DB_PREFIX_.'address` a ON a.`id_customer` = o.`id_customer` 
+				LEFT JOIN `'._DB_PREFIX_.'payment_cc` pcc ON pcc.`id_order` = o.`id_order`
+				LEFT JOIN `'._DB_PREFIX_.'order_detail` od ON od.`id_order` = o.`id_order`
+				LEFT JOIN `'._DB_PREFIX_.'currency` currency ON currency.`id_currency` = o.`id_currency`
+				LEFT JOIN `'._DB_PREFIX_.'order_detail_tax` odt ON odt.`id_order_detail` = od.`id_order_detail`
+				LEFT JOIN `'._DB_PREFIX_.'tax` t ON t.`id_tax` = odt.`id_tax`
+				LEFT JOIN `'._DB_PREFIX_.'country` country ON country.`id_country` = a.`id_country`
+				LEFT JOIN `'._DB_PREFIX_.'accounting_product_zone_shop` acc_pzs 
+					ON (acc_pzs.`id_shop` = o.`id_shop`
+					AND acc_pzs.`id_zone` = country.`id_zone`
+					AND acc_pzs.`id_product` = od.`product_id`)
+				LEFT JOIN `'._DB_PREFIX_.'accounting_zone_shop` acc_zs 
+					ON (acc_zs.`id_shop` = o.`id_shop`
+					AND acc_zs.`id_zone` = country.`id_zone`)
+				WHERE o.`valid` = 1
+				AND o.`invoice_date` 
+					BETWEEN \''.pSQL($this->date['begin']).'\' 
+					AND \''.pSQL($this->date['end']).'\'
+				ORDER BY o.`id_order` ASC';
+		
+		$list = $this->buildGlobalExportlist(Db::getInstance()->executeS($query));
+		$this->writeExportToFile($list);
+	}
+	
+	/**
+	* Allow to download the last export file
+	* @var string File name
+	*/
+	private function downloadFile($fileName)
+	{
+		$path = $this->downloadDir.$fileName;
+		header('Content-Type: application/csv'); 
+		header('Content-length: ' . filesize($path)); 
+		header('Content-Disposition: attachment; filename="'.$fileName.'"');
+		
+		// Flush data unproper data page before reading the file
+		ob_clean();
+    flush();
+    
+		// Check if echo will be sufficient
+		@readfile($path);
+		exit();  
+	}
 }
\ No newline at end of file
diff --git a/controllers/admin/AdminProductsController.php b/controllers/admin/AdminProductsController.php
index ebb30a879..e76548cd5 100644
--- a/controllers/admin/AdminProductsController.php
+++ b/controllers/admin/AdminProductsController.php
@@ -1910,7 +1910,7 @@ if (false)
 			'shopName' => $this->context->shop->name,
 			'error' => $error,
 		));
-		$this->content = $this->context->smarty->fetch('products/accounting.tpl');
+		$this->tpl_form_vars['custom_form'] = $this->context->smarty->fetch('products/accounting.tpl');
 	}
 
 	public function initFormPrices($obj, $languages, $defaultLanguage)
diff --git a/controllers/admin/AdminTaxesController.php b/controllers/admin/AdminTaxesController.php
index 57d23e06d..7cf746e9b 100644
--- a/controllers/admin/AdminTaxesController.php
+++ b/controllers/admin/AdminTaxesController.php
@@ -162,6 +162,16 @@ class AdminTaxesControllerCore extends AdminController
 							'label' => $this->l('Disabled')
 						)
 					)
+				),
+				array(
+					'type' => 'text',
+					'label' => $this->l('Account number:'),
+					'name' => 'account_number',
+					'size' => 33,
+					'maxlength' => 64,
+					'required' => false,
+					'hint' => $this->l('Invalid characters:').' <>;=#{}',
+					'p' => $this->l('Used for the accounting export')
 				)
 			),
 			'submit' => array(
diff --git a/css/admin.css b/css/admin.css
index 0c3701c85..57b99c07d 100644
--- a/css/admin.css
+++ b/css/admin.css
@@ -1766,3 +1766,9 @@ div.progressBarImage
 	color:#fff;
 	background:url(../img/loader.gif);
 }
+
+
+/* Accounting css */
+.formAccountingExport {
+	display: none;
+}
\ No newline at end of file