diff --git a/datatypes/src/main/java/org/hyperledger/besu/datatypes/Transaction.java b/datatypes/src/main/java/org/hyperledger/besu/datatypes/Transaction.java
index d70ceda40d..3407513ca7 100644
--- a/datatypes/src/main/java/org/hyperledger/besu/datatypes/Transaction.java
+++ b/datatypes/src/main/java/org/hyperledger/besu/datatypes/Transaction.java
@@ -219,4 +219,11 @@ public interface Transaction {
    * @return the encoded transaction as Bytes
    */
   Bytes encoded();
+
+  /**
+   * Returns the size in bytes of the encoded transaction.
+   *
+   * @return the size in bytes of the encoded transaction.
+   */
+  int getSize();
 }
diff --git a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/core/Transaction.java b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/core/Transaction.java
index a7cad4b8d8..0133e0bd72 100644
--- a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/core/Transaction.java
+++ b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/core/Transaction.java
@@ -670,6 +670,7 @@ public class Transaction
    *
    * @return the size in bytes of the encoded transaction.
    */
+  @Override
   public int getSize() {
     if (size == -1) {
       memoizeHashAndSize();