diff --git a/internal/services/network/web_application_firewall_policy_resource.go b/internal/services/network/web_application_firewall_policy_resource.go
index 12053a12fd61..a93f5df64312 100644
--- a/internal/services/network/web_application_firewall_policy_resource.go
+++ b/internal/services/network/web_application_firewall_policy_resource.go
@@ -396,6 +396,22 @@ func resourceWebApplicationFirewallPolicy() *pluginsdk.Resource {
 							Default:  true,
 						},
 
+						"file_upload_enforcement": {
+							Type: pluginsdk.TypeBool,
+							/*
+								NOTE: O+C: This value defaults to true but is only available under certain conditions (i.e. when version is 3.2)
+									managed_rules {
+										managed_rule_set {
+										  type    = "OWASP"
+										  version = "3.2"
+										}
+									  }
+							*/
+							Optional: true,
+							// We'll remove computed in 5.0 so we don't break existing configurations
+							Computed: !features.FivePointOhBeta(),
+						},
+
 						"max_request_body_size_in_kb": {
 							Type:         pluginsdk.TypeInt,
 							Optional:     true,
@@ -727,12 +743,14 @@ func expandWebApplicationFirewallPolicyPolicySettings(input []interface{}) *weba
 	mode := v["mode"].(string)
 	requestBodyCheck := v["request_body_check"].(bool)
 	requestBodyEnforcement := v["request_body_enforcement"].(bool)
+	fileUploadEnforcement := v["file_upload_enforcement"].(bool)
 	maxRequestBodySizeInKb := v["max_request_body_size_in_kb"].(int)
 	fileUploadLimitInMb := v["file_upload_limit_in_mb"].(int)
 
 	result := webapplicationfirewallpolicies.PolicySettings{
 		State:                             pointer.To(enabled),
 		Mode:                              pointer.To(webapplicationfirewallpolicies.WebApplicationFirewallMode(mode)),
+		FileUploadEnforcement:             pointer.To(fileUploadEnforcement),
 		RequestBodyCheck:                  pointer.To(requestBodyCheck),
 		RequestBodyEnforcement:            pointer.To(requestBodyEnforcement),
 		MaxRequestBodySizeInKb:            pointer.To(int64(maxRequestBodySizeInKb)),
@@ -1088,6 +1106,7 @@ func flattenWebApplicationFirewallPolicyPolicySettings(input *webapplicationfire
 	result["mode"] = string(pointer.From(input.Mode))
 	result["request_body_check"] = input.RequestBodyCheck
 	result["request_body_enforcement"] = input.RequestBodyEnforcement
+	result["file_upload_enforcement"] = input.FileUploadEnforcement
 	result["max_request_body_size_in_kb"] = int(pointer.From(input.MaxRequestBodySizeInKb))
 	result["file_upload_limit_in_mb"] = int(pointer.From(input.FileUploadLimitInMb))
 	result["log_scrubbing"] = flattenWebApplicationFirewallPolicyLogScrubbing(input.LogScrubbing)
diff --git a/internal/services/network/web_application_firewall_policy_resource_test.go b/internal/services/network/web_application_firewall_policy_resource_test.go
index f27211b69546..6477b998a95a 100644
--- a/internal/services/network/web_application_firewall_policy_resource_test.go
+++ b/internal/services/network/web_application_firewall_policy_resource_test.go
@@ -405,6 +405,35 @@ func TestAccWebApplicationFirewallPolicy_BotManager(t *testing.T) {
 	})
 }
 
+func TestAccWebApplicationFirewallPolicy_fileUploadEnforcement(t *testing.T) {
+	data := acceptance.BuildTestData(t, "azurerm_web_application_firewall_policy", "test")
+	r := WebApplicationFirewallResource{}
+
+	data.ResourceTest(t, r, []acceptance.TestStep{
+		{
+			Config: r.fileUploadEnforcement(data, true),
+			Check: acceptance.ComposeTestCheckFunc(
+				check.That(data.ResourceName).ExistsInAzure(r),
+			),
+		},
+		data.ImportStep(),
+		{
+			Config: r.fileUploadEnforcement(data, false),
+			Check: acceptance.ComposeTestCheckFunc(
+				check.That(data.ResourceName).ExistsInAzure(r),
+			),
+		},
+		data.ImportStep(),
+		{
+			Config: r.fileUploadEnforcement(data, true),
+			Check: acceptance.ComposeTestCheckFunc(
+				check.That(data.ResourceName).ExistsInAzure(r),
+			),
+		},
+		data.ImportStep(),
+	})
+}
+
 func (t WebApplicationFirewallResource) Exists(ctx context.Context, clients *clients.Client, state *pluginsdk.InstanceState) (*bool, error) {
 	id, err := webapplicationfirewallpolicies.ParseApplicationGatewayWebApplicationFirewallPolicyID(state.ID)
 	if err != nil {
@@ -2035,3 +2064,40 @@ resource "azurerm_web_application_firewall_policy" "test" {
 }
 `, data.RandomInteger, data.Locations.Primary, data.RandomInteger)
 }
+
+func (WebApplicationFirewallResource) fileUploadEnforcement(data acceptance.TestData, enforcement bool) string {
+	return fmt.Sprintf(`
+provider "azurerm" {
+  features {}
+}
+
+resource "azurerm_resource_group" "test" {
+  name     = "acctestRG-%d"
+  location = "%s"
+}
+
+resource "azurerm_web_application_firewall_policy" "test" {
+  name                = "acctestwafpolicy-%d"
+  resource_group_name = azurerm_resource_group.test.name
+  location            = azurerm_resource_group.test.location
+
+
+  managed_rules {
+    managed_rule_set {
+      type    = "OWASP"
+      version = "3.2"
+    }
+  }
+
+  policy_settings {
+    enabled                     = true
+    mode                        = "Prevention"
+    request_body_check          = false
+    request_body_enforcement    = true
+    file_upload_limit_in_mb     = 128
+    max_request_body_size_in_kb = 128
+    file_upload_enforcement     = %t
+  }
+}
+`, data.RandomInteger, data.Locations.Primary, data.RandomInteger, enforcement)
+}
diff --git a/website/docs/r/web_application_firewall_policy.html.markdown b/website/docs/r/web_application_firewall_policy.html.markdown
index ffad314bf859..16500d00d16c 100644
--- a/website/docs/r/web_application_firewall_policy.html.markdown
+++ b/website/docs/r/web_application_firewall_policy.html.markdown
@@ -196,6 +196,8 @@ The `policy_settings` block supports the following:
 
 * `js_challenge_cookie_expiration_in_minutes` - (Optional) Specifies the JavaScript challenge cookie validity lifetime in minutes. The user is challenged after the lifetime expires. Accepted values are in the range `5` to `1440`. Defaults to `30`.
 
+* `file_upload_enforcement` - (Optional)  - Whether the firewall should block a request with upload size greater then `file_upload_limit_in_mb`.
+
 ---
 
 The `managed_rules` block supports the following: