diff --git a/.changelog/35206.txt b/.changelog/35206.txt
new file mode 100644
index 000000000000..30ee2a3500e9
--- /dev/null
+++ b/.changelog/35206.txt
@@ -0,0 +1,3 @@
+```release-note:enhancement
+resource/aws_finspace_kx_scaling_group: Increase default create, delete timeouts to 4 hours
+```
diff --git a/internal/service/finspace/kx_scaling_group.go b/internal/service/finspace/kx_scaling_group.go
index 852fed8de75b..be4224a6feed 100644
--- a/internal/service/finspace/kx_scaling_group.go
+++ b/internal/service/finspace/kx_scaling_group.go
@@ -40,9 +40,9 @@ func ResourceKxScalingGroup() *schema.Resource {
 		},
 
 		Timeouts: &schema.ResourceTimeout{
-			Create: schema.DefaultTimeout(45 * time.Minute),
+			Create: schema.DefaultTimeout(4 * time.Hour),
 			Update: schema.DefaultTimeout(30 * time.Minute),
-			Delete: schema.DefaultTimeout(60 * time.Minute),
+			Delete: schema.DefaultTimeout(4 * time.Hour),
 		},
 
 		Schema: map[string]*schema.Schema{
diff --git a/website/docs/r/finspace_kx_scaling_group.html.markdown b/website/docs/r/finspace_kx_scaling_group.html.markdown
index c4f34b5b600e..2e81572584cb 100644
--- a/website/docs/r/finspace_kx_scaling_group.html.markdown
+++ b/website/docs/r/finspace_kx_scaling_group.html.markdown
@@ -60,9 +60,9 @@ This resource exports the following attributes in addition to the arguments abov
 
 [Configuration options](https://developer.hashicorp.com/terraform/language/resources/syntax#operation-timeouts):
 
-* `create` - (Default `45m`)
+* `create` - (Default `4h`)
 * `update` - (Default `30m`)
-* `delete` - (Default `60m`)
+* `delete` - (Default `4h`)
 
 ## Import