diff --git a/main.tf b/main.tf
index 88d4d69..ad28db7 100644
--- a/main.tf
+++ b/main.tf
@@ -62,7 +62,7 @@ resource "aws_ce_anomaly_monitor" "serviceanomaly" {
 
 resource "aws_ce_anomaly_subscription" "mainsubscription" {
   name      = "RealtimeAnomalySubscription"
-  threshold = 250
+  threshold = var.anomaly_threshold_in_usd
   frequency = "IMMEDIATE"
 
   monitor_arn_list = [
diff --git a/variables.tf b/variables.tf
index 85b9fd5..9cf8f26 100644
--- a/variables.tf
+++ b/variables.tf
@@ -14,6 +14,11 @@ variable "account_budget_limit_in_usd" {
   default     = "200.0"
 }
 
+variable "anomaly_threshold_in_usd" {
+  description = "If there is an anomaly in cost above this limit, a message will be sent to SNS."
+  default = 250
+}
+
 variable "env" {
   description = "A map of tags (key-value pairs) passed to resources."
   type        = string