diff --git a/README.md b/README.md
index c55bb12a..c1c0ade9 100644
--- a/README.md
+++ b/README.md
@@ -136,7 +136,7 @@ module "db" {
 
 <!-- BEGINNING OF PRE-COMMIT-TERRAFORM DOCS HOOK -->
 ## Inputs
-
+ 
 | Name | Description | Type | Default | Required |
 |------|-------------|:----:|:-----:|:-----:|
 | allocated\_storage | The allocated storage in gigabytes | string | n/a | yes |
@@ -168,7 +168,8 @@ module "db" {
 | license\_model | License model information for this DB instance. Optional, but required for some DB engines, i.e. Oracle SE1 | string | `""` | no |
 | maintenance\_window | The window to perform maintenance in. Syntax: 'ddd:hh24:mi-ddd:hh24:mi'. Eg: 'Mon:00:00-Mon:03:00' | string | n/a | yes |
 | major\_engine\_version | Specifies the major version of the engine that this option group should be associated with | string | `""` | no |
-| monitoring\_interval | The interval, in seconds, between points when Enhanced Monitoring metrics are collected for the DB instance. To disable collecting Enhanced Monitoring metrics, specify 0. The default is 0. Valid Values: 0, 1, 5, 10, 15, 30, 60. | number | `"0"` | no |
+| max\_allocated\_storage | Specifies the maximum value for storage autoscaling | number | `""` | no |
+  monitoring\_interval | The interval, in seconds, between points when Enhanced Monitoring metrics are collected for the DB instance. To disable collecting Enhanced Monitoring metrics, specify 0. The default is 0. Valid Values: 0, 1, 5, 10, 15, 30, 60. | number | `"0"` | no |
 | monitoring\_role\_arn | The ARN for the IAM role that permits RDS to send enhanced monitoring metrics to CloudWatch Logs. Must be specified if monitoring_interval is non-zero. | string | `""` | no |
 | monitoring\_role\_name | Name of the IAM role which will be created when create_monitoring_role is enabled. | string | `"rds-monitoring-role"` | no |
 | multi\_az | Specifies if the RDS instance is multi-AZ | bool | `"false"` | no |
diff --git a/main.tf b/main.tf
index 42f84e13..89814f93 100644
--- a/main.tf
+++ b/main.tf
@@ -97,11 +97,11 @@ module "db_instance" {
 
   backup_retention_period = var.backup_retention_period
   backup_window           = var.backup_window
-
-  monitoring_interval    = var.monitoring_interval
-  monitoring_role_arn    = var.monitoring_role_arn
-  monitoring_role_name   = var.monitoring_role_name
-  create_monitoring_role = var.create_monitoring_role
+  max_allocated_storage   = var.max_allocated_storage
+  monitoring_interval     = var.monitoring_interval
+  monitoring_role_arn     = var.monitoring_role_arn
+  monitoring_role_name    = var.monitoring_role_name
+  create_monitoring_role  = var.create_monitoring_role
 
   timezone                        = var.timezone
   character_set_name              = var.character_set_name
diff --git a/modules/db_instance/main.tf b/modules/db_instance/main.tf
index d107235f..c9b61657 100644
--- a/modules/db_instance/main.tf
+++ b/modules/db_instance/main.tf
@@ -79,6 +79,7 @@ resource "aws_db_instance" "this" {
   skip_final_snapshot         = var.skip_final_snapshot
   copy_tags_to_snapshot       = var.copy_tags_to_snapshot
   final_snapshot_identifier   = var.final_snapshot_identifier
+  max_allocated_storage       = var.max_allocated_storage
 
   performance_insights_enabled = var.performance_insights_enabled
 
@@ -141,14 +142,14 @@ resource "aws_db_instance" "this_mssql" {
   monitoring_interval = var.monitoring_interval
   monitoring_role_arn = coalesce(var.monitoring_role_arn, aws_iam_role.enhanced_monitoring.*.arn, null)
 
-  allow_major_version_upgrade = var.allow_major_version_upgrade
-  auto_minor_version_upgrade  = var.auto_minor_version_upgrade
-  apply_immediately           = var.apply_immediately
-  maintenance_window          = var.maintenance_window
-  skip_final_snapshot         = var.skip_final_snapshot
-  copy_tags_to_snapshot       = var.copy_tags_to_snapshot
-  final_snapshot_identifier   = var.final_snapshot_identifier
-
+  allow_major_version_upgrade  = var.allow_major_version_upgrade
+  auto_minor_version_upgrade   = var.auto_minor_version_upgrade
+  apply_immediately            = var.apply_immediately
+  maintenance_window           = var.maintenance_window
+  skip_final_snapshot          = var.skip_final_snapshot
+  copy_tags_to_snapshot        = var.copy_tags_to_snapshot
+  final_snapshot_identifier    = var.final_snapshot_identifier
+  max_allocated_storage        = var.max_allocated_storage
   performance_insights_enabled = var.performance_insights_enabled
 
   backup_retention_period = var.backup_retention_period
diff --git a/modules/db_instance/variables.tf b/modules/db_instance/variables.tf
index 5ff812b1..d3ec067a 100644
--- a/modules/db_instance/variables.tf
+++ b/modules/db_instance/variables.tf
@@ -261,3 +261,9 @@ variable "performance_insights_enabled" {
   type        = bool
   default     = false
 }
+
+variable "max_allocated_storage" {
+  description = "Specifies the value for Storage Autoscaling"
+  type        = number
+  default     = 0
+}
diff --git a/variables.tf b/variables.tf
index 537cbbac..b6d01694 100644
--- a/variables.tf
+++ b/variables.tf
@@ -330,3 +330,9 @@ variable "performance_insights_enabled" {
   type        = bool
   default     = false
 }
+
+variable "max_allocated_storage" {
+  description = "Specifies the value for Storage Autoscaling"
+  type        = number
+  default     = 0
+}