diff --git a/database_updates.php b/database_updates.php
index 0dd7f23f..289f44c7 100644
--- a/database_updates.php
+++ b/database_updates.php
@@ -1470,8 +1470,18 @@ if (LATEST_DATABASE_VERSION > CURRENT_DATABASE_VERSION) {
         //
         // Then, update the database to the next sequential version
         mysqli_query($mysqli, "UPDATE `settings` SET `config_current_database_version` = '0.9.0'");
-        }
-        //
+    }
+
+    if (CURRENT_DATABASE_VERSION == '0.9.0') {
+        // Insert queries here required to update to DB version 0.9.1
+        mysqli_query($mysqli, "ALTER TABLE `invoices` ADD `invoice_discount_amount` DECIMAL(15,2) NOT NULL DEFAULT 0.00 AFTER `invoice_due`");
+        mysqli_query($mysqli, "ALTER TABLE `recurring` ADD `recurring_discount_amount` DECIMAL(15,2) NOT NULL DEFAULT 0.00 AFTER `recurring_status`");
+        mysqli_query($mysqli, "ALTER TABLE `quotes` ADD `quote_discount_amount` DECIMAL(15,2) NOT NULL DEFAULT 0.00 AFTER `quote_status`");
+
+        // Then update the database to the next sequential version
+        mysqli_query($mysqli, "UPDATE `settings` SET `config_current_database_version` = '0.9.1'");
+
+    }
 
 } else {
     // Up-to-date
diff --git a/database_version.php b/database_version.php
index 5bea9d6e..6815157f 100644
--- a/database_version.php
+++ b/database_version.php
@@ -5,4 +5,4 @@
  * It is used in conjunction with database_updates.php
  */
 
-DEFINE("LATEST_DATABASE_VERSION", "0.9.0");
+DEFINE("LATEST_DATABASE_VERSION", "0.9.1");
diff --git a/db.sql b/db.sql
index b1e9bf6f..812955d2 100644
--- a/db.sql
+++ b/db.sql
@@ -714,6 +714,7 @@ CREATE TABLE `invoices` (
   `invoice_status` varchar(200) NOT NULL,
   `invoice_date` date NOT NULL,
   `invoice_due` date NOT NULL,
+  `invoice_discount_amount` decimal(15,2) NOT NULL DEFAULT 0.00, 
   `invoice_amount` decimal(15,2) NOT NULL DEFAULT 0.00,
   `invoice_currency_code` varchar(200) NOT NULL,
   `invoice_note` text DEFAULT NULL,
@@ -938,6 +939,7 @@ CREATE TABLE `quotes` (
   `quote_status` varchar(200) NOT NULL,
   `quote_date` date NOT NULL,
   `quote_expire` date DEFAULT NULL,
+  `quote_discount_amount` decimal(15,2) NOT NULL DEFAULT 0.00,
   `quote_amount` decimal(15,2) NOT NULL DEFAULT 0.00,
   `quote_currency_code` varchar(200) NOT NULL,
   `quote_note` text DEFAULT NULL,
@@ -988,6 +990,7 @@ CREATE TABLE `recurring` (
   `recurring_last_sent` date DEFAULT NULL,
   `recurring_next_date` date NOT NULL,
   `recurring_status` int(1) NOT NULL,
+  `recurring_discount_amount` decimal(15,2) NOT NULL DEFAULT 0.00,
   `recurring_amount` decimal(15,2) NOT NULL DEFAULT 0.00,
   `recurring_currency_code` varchar(200) NOT NULL,
   `recurring_note` text DEFAULT NULL,