diff --git a/install-dev/sql/db.sql b/install-dev/sql/db.sql
index d25860fc0..8c644babc 100644
--- a/install-dev/sql/db.sql
+++ b/install-dev/sql/db.sql
@@ -1595,6 +1595,7 @@ CREATE TABLE `PREFIX_tax` (
   `rate` DECIMAL(10, 3) NOT NULL,
   `active` tinyint(1) unsigned NOT NULL default '1',
   `deleted` tinyint(1) unsigned NOT NULL default '0',
+  `account_number` varchar(64) NOT NULL,
   PRIMARY KEY  (`id_tax`)
 ) ENGINE=ENGINE_TYPE DEFAULT CHARSET=utf8;
 
diff --git a/install-dev/sql/upgrade/1.5.0.1.sql b/install-dev/sql/upgrade/1.5.0.1.sql
index 41a35141d..1567f37bd 100644
--- a/install-dev/sql/upgrade/1.5.0.1.sql
+++ b/install-dev/sql/upgrade/1.5.0.1.sql
@@ -495,4 +495,6 @@ ALTER TABLE `PREFIX_specific_price` ADD INDEX `id_product` (`id_product`, `id_pr
 
 ALTER TABLE `PREFIX_hook` ADD `is_native` TINYINT( 1 ) NOT NULL DEFAULT '0';
 
+ALTER TABLE `PREFIX_tax` ADD COLUMN `account_number` VARCHAR(64) NOT NULL;
+
 /* PHP:add_new_tab(AdminAttributeGenerator, fr:Générateur de combinaisons|es:Combinations generator|en:Combinations generator|de:Combinations generator|it:Combinations generator, 1); */;