diff --git a/test/e2e/trigger_no_subscriber_test.go b/test/e2e/trigger_no_subscriber_test.go
new file mode 100644
index 00000000000..f7cfec7b2dd
--- /dev/null
+++ b/test/e2e/trigger_no_subscriber_test.go
@@ -0,0 +1,82 @@
+// +build e2e
+
+/*
+Copyright 2021 The Knative Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package e2e
+
+import (
+	"testing"
+
+	eventingv1 "knative.dev/eventing/pkg/apis/eventing/v1"
+	testlib "knative.dev/eventing/test/lib"
+	"knative.dev/eventing/test/lib/duck"
+	"knative.dev/eventing/test/lib/resources"
+	duckv1 "knative.dev/pkg/apis/duck/v1"
+	testhelpers "knative.dev/pkg/test/helpers"
+)
+
+func TestTriggerNotReadyWithoutSubscriber(t *testing.T) {
+	for _, testCase := range triggerNotReadyWithoutSubscriberTestCases() {
+		refFn := testCase.refFn
+		t.Run(testCase.name, func(t *testing.T) {
+			brokerName := testhelpers.MakeK8sNamePrefix(t.Name())
+			client := testlib.Setup(t, true)
+			defer testlib.TearDown(client)
+			client.CreateBrokerOrFail(brokerName)
+
+			name := testhelpers.MakeK8sNamePrefix(testCase.name)
+			ref := refFn(name, client.Namespace)
+			dest := duckv1.Destination{Ref: ref}
+			subscriberOption := resources.WithSubscriberDestination(func(t *eventingv1.Trigger) duckv1.Destination {
+				return dest
+			})
+
+			trgr := client.CreateTriggerOrFail(
+				name,
+				resources.WithBroker(brokerName),
+				resources.WithAttributesTriggerFilter(
+					eventingv1.TriggerAnyFilter,
+					"org.example.not-important",
+					map[string]interface{}{},
+				),
+				subscriberOption,
+			)
+			meta := resources.NewMetaResource(
+				trgr.Name, trgr.Namespace, testlib.TriggerTypeMeta,
+			)
+			err := duck.WaitForResourceReady(client.Dynamic, meta)
+			if err == nil {
+				t.Fatal("trigger is ready, but shouldn't be without subscriber being deployed")
+			}
+		})
+	}
+}
+
+func triggerNotReadyWithoutSubscriberTestCases() []triggerNotReadyWithoutSubscriberTestCase {
+	return []triggerNotReadyWithoutSubscriberTestCase{{
+		name:  "K8s Service",
+		refFn: resources.KnativeRefForService,
+	}, {
+		name:  "Knative Service",
+		refFn: resources.KnativeRefForKservice,
+	}}
+}
+
+type triggerNotReadyWithoutSubscriberTestCase struct {
+	name  string
+	refFn func(name, namespace string) *duckv1.KReference
+}