diff --git a/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/pubsub/PubsubIO.java b/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/pubsub/PubsubIO.java
index b561b4711d521..1e7052f025371 100644
--- a/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/pubsub/PubsubIO.java
+++ b/sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/pubsub/PubsubIO.java
@@ -56,7 +56,6 @@
 import org.apache.beam.sdk.schemas.Schema;
 import org.apache.beam.sdk.schemas.SchemaCoder;
 import org.apache.beam.sdk.transforms.DoFn;
-import org.apache.beam.sdk.transforms.Impulse;
 import org.apache.beam.sdk.transforms.MapElements;
 import org.apache.beam.sdk.transforms.PTransform;
 import org.apache.beam.sdk.transforms.ParDo;
@@ -1164,17 +1163,48 @@ private PCollection<T> expandReadContinued(
         @Nullable ValueProvider<SubscriptionPath> subscriptionPath) {
 
       TypeDescriptor<T> typeDescriptor = new TypeDescriptor<T>() {};
+      SerializableFunction<PubsubMessage, T> parseFnWrapped =
+          new SerializableFunction<PubsubMessage, T>() {
+            // flag that reported metrics
+            private final SerializableFunction<PubsubMessage, T> underlying =
+                Objects.requireNonNull(getParseFn());
+            private transient boolean reportedMetrics = false;
+
+            // public
+            @Override
+            public T apply(PubsubMessage input) {
+              if (!reportedMetrics) {
+                LOG.info("reportling lineage...");
+                // report Lineage once
+                if (topicPath != null) {
+                  TopicPath topic = topicPath.get();
+                  if (topic != null) {
+                    Lineage.getSources().add("pubsub", "topic", topic.getDataCatalogSegments());
+                  }
+                }
+                if (subscriptionPath != null) {
+                  SubscriptionPath sub = subscriptionPath.get();
+                  if (sub != null) {
+                    Lineage.getSources()
+                        .add("pubsub", "subscription", sub.getDataCatalogSegments());
+                  }
+                }
+                reportedMetrics = true;
+              }
+              return underlying.apply(input);
+            }
+          };
       PCollection<T> read;
       if (getDeadLetterTopicProvider() == null
           && (getBadRecordRouter() instanceof ThrowingBadRecordRouter)) {
-        read = preParse.apply(MapElements.into(typeDescriptor).via(getParseFn()));
+        read = preParse.apply(MapElements.into(typeDescriptor).via(parseFnWrapped));
       } else {
         // parse PubSub messages, separating out exceptions
         Result<PCollection<T>, KV<PubsubMessage, EncodableThrowable>> result =
             preParse.apply(
                 "PubsubIO.Read/Map/Parse-Incoming-Messages",
                 MapElements.into(typeDescriptor)
-                    .via(getParseFn())
+                    .via(parseFnWrapped)
                     .exceptionsVia(new WithFailures.ThrowableHandler<PubsubMessage>() {}));
 
         // Emit parsed records
@@ -1230,31 +1260,6 @@ private PCollection<T> expandReadContinued(
                       .withClientFactory(getPubsubClientFactory()));
         }
       }
-      // report Lineage once
-      preParse
-          .getPipeline()
-          .apply(Impulse.create())
-          .apply(
-              ParDo.of(
-                  new DoFn<byte[], Void>() {
-                    @ProcessElement
-                    public void process() {
-                      if (topicPath != null) {
-                        TopicPath topic = topicPath.get();
-                        if (topic != null) {
-                          Lineage.getSources()
-                              .add("pubsub", "topic", topic.getDataCatalogSegments());
-                        }
-                      }
-                      if (subscriptionPath != null) {
-                        SubscriptionPath sub = subscriptionPath.get();
-                        if (sub != null) {
-                          Lineage.getSources()
-                              .add("pubsub", "subscription", sub.getDataCatalogSegments());
-                        }
-                      }
-                    }
-                  }));
       return read.setCoder(getCoder());
     }