diff --git a/sdks/java/io/iceberg/src/main/java/org/apache/beam/sdk/io/iceberg/BundleLifter.java b/sdks/java/core/src/main/java/org/apache/beam/sdk/util/BundleLifter.java
similarity index 97%
rename from sdks/java/io/iceberg/src/main/java/org/apache/beam/sdk/io/iceberg/BundleLifter.java
rename to sdks/java/core/src/main/java/org/apache/beam/sdk/util/BundleLifter.java
index fea68852c0f9..539ef147f173 100644
--- a/sdks/java/io/iceberg/src/main/java/org/apache/beam/sdk/io/iceberg/BundleLifter.java
+++ b/sdks/java/core/src/main/java/org/apache/beam/sdk/util/BundleLifter.java
@@ -15,13 +15,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.beam.sdk.io.iceberg;
+package org.apache.beam.sdk.util;
 
 import static org.apache.beam.sdk.util.Preconditions.checkArgumentNotNull;
 
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import java.util.ArrayList;
 import java.util.List;
+import org.apache.beam.sdk.annotations.Internal;
 import org.apache.beam.sdk.transforms.DoFn;
 import org.apache.beam.sdk.transforms.DoFn.MultiOutputReceiver;
 import org.apache.beam.sdk.transforms.DoFn.OutputReceiver;
@@ -41,8 +42,11 @@
  * A PTransform that buffers elements and outputs them to one of two TupleTags based on the total
  * size of the bundle in finish_bundle.
  *
+ * <p>For internal use only; no backwards-compatibility guarantees.
+ *
  * @param <T> The type of elements in the input PCollection.
  */
+@Internal
 @SuppressFBWarnings(
     value = "CT_CONSTRUCTOR_THROW",
     justification =
diff --git a/sdks/java/io/iceberg/src/test/java/org/apache/beam/sdk/io/iceberg/BundleLifterTest.java b/sdks/java/core/src/test/java/org/apache/beam/sdk/util/BundleLifterTest.java
similarity index 97%
rename from sdks/java/io/iceberg/src/test/java/org/apache/beam/sdk/io/iceberg/BundleLifterTest.java
rename to sdks/java/core/src/test/java/org/apache/beam/sdk/util/BundleLifterTest.java
index 1eaa0920e6c6..0467f1383bcf 100644
--- a/sdks/java/io/iceberg/src/test/java/org/apache/beam/sdk/io/iceberg/BundleLifterTest.java
+++ b/sdks/java/core/src/test/java/org/apache/beam/sdk/util/BundleLifterTest.java
@@ -15,14 +15,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.beam.sdk.io.iceberg;
+package org.apache.beam.sdk.util;
 
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.containsInAnyOrder;
 import static org.hamcrest.Matchers.empty;
 
-import org.apache.beam.sdk.io.iceberg.BundleLifter.BundleLiftDoFn;
 import org.apache.beam.sdk.transforms.DoFnTester;
+import org.apache.beam.sdk.util.BundleLifter.BundleLiftDoFn;
 import org.apache.beam.sdk.values.TupleTag;
 import org.junit.Test;
 import org.junit.runner.RunWith;
diff --git a/sdks/java/io/iceberg/src/main/java/org/apache/beam/sdk/io/iceberg/WriteToDestinations.java b/sdks/java/io/iceberg/src/main/java/org/apache/beam/sdk/io/iceberg/WriteToDestinations.java
index 6d8f08a2ae56..71b610a37a1d 100644
--- a/sdks/java/io/iceberg/src/main/java/org/apache/beam/sdk/io/iceberg/WriteToDestinations.java
+++ b/sdks/java/io/iceberg/src/main/java/org/apache/beam/sdk/io/iceberg/WriteToDestinations.java
@@ -36,6 +36,7 @@
 import org.apache.beam.sdk.transforms.windowing.GlobalWindows;
 import org.apache.beam.sdk.transforms.windowing.Repeatedly;
 import org.apache.beam.sdk.transforms.windowing.Window;
+import org.apache.beam.sdk.util.BundleLifter;
 import org.apache.beam.sdk.util.ShardedKey;
 import org.apache.beam.sdk.values.KV;
 import org.apache.beam.sdk.values.PCollection;