diff --git a/CHANGELOG.md b/CHANGELOG.md
index 659705f6..44ed8a7c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -21,6 +21,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Various false positive attribute drifts ([#344](https://github.com/Scalr/terraform-provider-scalr/pull/344))
+- `cost_estimation_enabled` attribute is forced to `false` in the `scalr_environment` resource if this attrute is ommited in the configuration ([#366](https://github.com/Scalr/terraform-provider-scalr/pull/366))
 
 ### Changed
 
diff --git a/docs/resources/environment.md b/docs/resources/environment.md
index 5d349829..d70b1c07 100644
--- a/docs/resources/environment.md
+++ b/docs/resources/environment.md
@@ -32,7 +32,7 @@ resource "scalr_environment" "test" {
 ### Optional
 
 - `account_id` (String) ID of the environment account, in the format `acc-<RANDOM STRING>`.
-- `cost_estimation_enabled` (Boolean, Deprecated) Set (true/false) to enable/disable cost estimation for the environment. Default `true`.
+- `cost_estimation_enabled` (Boolean, Deprecated) Set (true/false) to enable/disable cost estimation for the environment.
 - `default_provider_configurations` (Set of String) List of IDs of provider configurations, used in the environment workspaces by default.
 - `policy_groups` (List of String, Deprecated) List of the environment policy-groups IDs, in the format `pgrp-<RANDOM STRING>`.
 - `tag_ids` (Set of String) List of tag IDs associated with the environment.
diff --git a/scalr/data_source_scalr_environment_test.go b/scalr/data_source_scalr_environment_test.go
index 77fe60c7..9c4aced4 100644
--- a/scalr/data_source_scalr_environment_test.go
+++ b/scalr/data_source_scalr_environment_test.go
@@ -44,7 +44,7 @@ func TestAccEnvironmentDataSource_basic(t *testing.T) {
 				Check: resource.ComposeAggregateTestCheckFunc(
 					resource.TestCheckResourceAttr("data.scalr_environment.test", "name", fmt.Sprintf("test-env-%d", rInt)),
 					resource.TestCheckResourceAttr("data.scalr_environment.test", "status", "Active"),
-					resource.TestCheckResourceAttr("data.scalr_environment.test", "cost_estimation_enabled", "false"),
+					resource.TestCheckResourceAttr("data.scalr_environment.test", "cost_estimation_enabled", "true"),
 					resource.TestCheckResourceAttr("data.scalr_environment.test", "account_id", defaultAccount),
 					resource.TestCheckResourceAttr("data.scalr_environment.test", "tags.#", "0"),
 					resource.TestCheckResourceAttrSet("data.scalr_environment.test", "created_by.0.full_name"),
@@ -58,7 +58,7 @@ func TestAccEnvironmentDataSource_basic(t *testing.T) {
 				Check: resource.ComposeAggregateTestCheckFunc(
 					resource.TestCheckResourceAttr("data.scalr_environment.test", "name", fmt.Sprintf("test-env-%d", rInt)),
 					resource.TestCheckResourceAttr("data.scalr_environment.test", "status", "Active"),
-					resource.TestCheckResourceAttr("data.scalr_environment.test", "cost_estimation_enabled", "false"),
+					resource.TestCheckResourceAttr("data.scalr_environment.test", "cost_estimation_enabled", "true"),
 					resource.TestCheckResourceAttr("data.scalr_environment.test", "account_id", defaultAccount),
 					resource.TestCheckResourceAttrSet("data.scalr_environment.test", "created_by.0.full_name"),
 					resource.TestCheckResourceAttrSet("data.scalr_environment.test", "created_by.0.email"),
@@ -70,7 +70,7 @@ func TestAccEnvironmentDataSource_basic(t *testing.T) {
 				Check: resource.ComposeAggregateTestCheckFunc(
 					resource.TestCheckResourceAttr("data.scalr_environment.test", "name", fmt.Sprintf("test-env-%d", rInt)),
 					resource.TestCheckResourceAttr("data.scalr_environment.test", "status", "Active"),
-					resource.TestCheckResourceAttr("data.scalr_environment.test", "cost_estimation_enabled", "false"),
+					resource.TestCheckResourceAttr("data.scalr_environment.test", "cost_estimation_enabled", "true"),
 					resource.TestCheckResourceAttr("data.scalr_environment.test", "account_id", defaultAccount),
 					resource.TestCheckResourceAttrSet("data.scalr_environment.test", "created_by.0.full_name"),
 					resource.TestCheckResourceAttrSet("data.scalr_environment.test", "created_by.0.email"),
diff --git a/scalr/resource_scalr_environment.go b/scalr/resource_scalr_environment.go
index 7eee66b5..f049c362 100644
--- a/scalr/resource_scalr_environment.go
+++ b/scalr/resource_scalr_environment.go
@@ -4,9 +4,10 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
 	"log"
 
+	"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
+
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
 	"github.com/scalr/go-scalr"
 )
@@ -29,7 +30,7 @@ func resourceScalrEnvironment() *schema.Resource {
 				Required:    true,
 			},
 			"cost_estimation_enabled": {
-				Description: "Set (true/false) to enable/disable cost estimation for the environment. Default `true`.",
+				Description: "Set (true/false) to enable/disable cost estimation for the environment.",
 				Type:        schema.TypeBool,
 				Computed:    true,
 				Optional:    true,
@@ -126,10 +127,12 @@ func resourceScalrEnvironmentCreate(ctx context.Context, d *schema.ResourceData,
 	}
 
 	options := scalr.EnvironmentCreateOptions{
-		Name:                  scalr.String(name),
-		CostEstimationEnabled: scalr.Bool(d.Get("cost_estimation_enabled").(bool)),
-		Account:               &scalr.Account{ID: accountID},
-		PolicyGroups:          policyGroups,
+		Name:         scalr.String(name),
+		Account:      &scalr.Account{ID: accountID},
+		PolicyGroups: policyGroups,
+	}
+	if costEstimationEnabled, ok := d.GetOkExists("cost_estimation_enabled"); ok { //nolint:staticcheck
+		options.CostEstimationEnabled = scalr.Bool(costEstimationEnabled.(bool))
 	}
 	if defaultProviderConfigurationsI, ok := d.GetOk("default_provider_configurations"); ok {
 		defaultProviderConfigurations := defaultProviderConfigurationsI.(*schema.Set).List()
@@ -228,9 +231,11 @@ func resourceScalrEnvironmentUpdate(ctx context.Context, d *schema.ResourceData,
 
 	// Create a new options struct.
 	options := scalr.EnvironmentUpdateOptions{
-		Name:                  scalr.String(d.Get("name").(string)),
-		CostEstimationEnabled: scalr.Bool(d.Get("cost_estimation_enabled").(bool)),
-		PolicyGroups:          policyGroups,
+		Name:         scalr.String(d.Get("name").(string)),
+		PolicyGroups: policyGroups,
+	}
+	if costEstimationEnabled, ok := d.GetOkExists("cost_estimation_enabled"); ok { //nolint:staticcheck
+		options.CostEstimationEnabled = scalr.Bool(costEstimationEnabled.(bool))
 	}
 
 	if defaultProviderConfigurationsI, ok := d.GetOk("default_provider_configurations"); ok {