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 284b6ea2eb5..a7cad4b8d85 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
@@ -680,18 +680,15 @@ public int getSize() {
   private void memoizeHashAndSize() {
     final Bytes bytes = TransactionEncoder.encodeOpaqueBytes(this, EncodingContext.BLOCK_BODY);
     hash = Hash.hash(bytes);
-
     if (transactionType.supportsBlob()) {
       if (getBlobsWithCommitments().isPresent()) {
-        final BytesValueRLPOutput rlpOutput = new BytesValueRLPOutput();
-        TransactionEncoder.encodeRLP(this, rlpOutput, EncodingContext.POOLED_TRANSACTION);
-        size = rlpOutput.encodedSize();
+        final Bytes pooledBytes =
+            TransactionEncoder.encodeOpaqueBytes(this, EncodingContext.POOLED_TRANSACTION);
+        size = pooledBytes.size();
         return;
       }
     }
-    final BytesValueRLPOutput rlpOutput = new BytesValueRLPOutput();
-    TransactionEncoder.encodeRLP(transactionType, bytes, rlpOutput);
-    size = rlpOutput.encodedSize();
+    size = bytes.size();
   }
 
   /**
diff --git a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/core/encoding/BlobPooledTransactionEncoder.java b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/core/encoding/BlobPooledTransactionEncoder.java
index c2167103cda..b47a406102d 100644
--- a/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/core/encoding/BlobPooledTransactionEncoder.java
+++ b/ethereum/core/src/main/java/org/hyperledger/besu/ethereum/core/encoding/BlobPooledTransactionEncoder.java
@@ -22,19 +22,26 @@
 import org.hyperledger.besu.ethereum.core.Transaction;
 import org.hyperledger.besu.ethereum.rlp.RLPOutput;
 
+import java.security.InvalidParameterException;
+
 import org.slf4j.Logger;
 
 public class BlobPooledTransactionEncoder {
   private static final Logger LOG = getLogger(BlobPooledTransactionEncoder.class);
+  static final String NO_BLOBS_ERROR =
+      "Transaction with no blobsWithCommitments cannot be encoded for Pooled Transaction";
 
   public static void encode(final Transaction transaction, final RLPOutput out) {
     LOG.trace("Encoding transaction with blobs {}", transaction);
+    var blobsWithCommitments = transaction.getBlobsWithCommitments();
+    if (blobsWithCommitments.isEmpty() || blobsWithCommitments.get().getBlobs().isEmpty()) {
+      throw new InvalidParameterException(NO_BLOBS_ERROR);
+    }
     out.startList();
-    var blobsWithCommitments = transaction.getBlobsWithCommitments().orElseThrow();
     BlobTransactionEncoder.encode(transaction, out);
-    out.writeList(blobsWithCommitments.getBlobs(), Blob::writeTo);
-    out.writeList(blobsWithCommitments.getKzgCommitments(), KZGCommitment::writeTo);
-    out.writeList(blobsWithCommitments.getKzgProofs(), KZGProof::writeTo);
+    out.writeList(blobsWithCommitments.get().getBlobs(), Blob::writeTo);
+    out.writeList(blobsWithCommitments.get().getKzgCommitments(), KZGCommitment::writeTo);
+    out.writeList(blobsWithCommitments.get().getKzgProofs(), KZGProof::writeTo);
     out.endList();
   }
 }
diff --git a/ethereum/core/src/test/java/org/hyperledger/besu/ethereum/core/encoding/BlobTransactionEncodingTest.java b/ethereum/core/src/test/java/org/hyperledger/besu/ethereum/core/encoding/BlobTransactionEncodingTest.java
index b1bb4be6764..49461a75303 100644
--- a/ethereum/core/src/test/java/org/hyperledger/besu/ethereum/core/encoding/BlobTransactionEncodingTest.java
+++ b/ethereum/core/src/test/java/org/hyperledger/besu/ethereum/core/encoding/BlobTransactionEncodingTest.java
@@ -63,7 +63,7 @@ public void blobTransactionEncodingDecodingForNetWorkTest(
     final BytesValueRLPOutput bytesValueRLPOutput = new BytesValueRLPOutput();
     TransactionEncoder.encodeRLP(
         transaction, bytesValueRLPOutput, EncodingContext.POOLED_TRANSACTION);
-    assertThat(transaction.getSize()).isEqualTo(output.encodedSize());
+    assertThat(transaction.getSize()).isEqualTo(bytes.size());
   }
 
   @ParameterizedTest(name = "{index} {0}")
@@ -81,7 +81,7 @@ public void blobTransactionEncodingDecodingTest(final TypedTransactionBytesArgum
 
     final BytesValueRLPOutput rlpOutput = new BytesValueRLPOutput();
     TransactionEncoder.encodeRLP(transaction.getType(), bytes, rlpOutput);
-    assertThat(transaction.getSize()).isEqualTo(rlpOutput.encodedSize());
+    assertThat(transaction.getSize()).isEqualTo(bytes.size());
   }
 
   private static Arguments createArgumentFromFile(final String path) throws IOException {
diff --git a/ethereum/core/src/test/java/org/hyperledger/besu/ethereum/core/encoding/TransactionRLPDecoderTest.java b/ethereum/core/src/test/java/org/hyperledger/besu/ethereum/core/encoding/TransactionRLPDecoderTest.java
index 882a2329d8e..245561158b0 100644
--- a/ethereum/core/src/test/java/org/hyperledger/besu/ethereum/core/encoding/TransactionRLPDecoderTest.java
+++ b/ethereum/core/src/test/java/org/hyperledger/besu/ethereum/core/encoding/TransactionRLPDecoderTest.java
@@ -94,9 +94,11 @@ void shouldCalculateCorrectTransactionSize(final String rlp_tx, final String ign
     // Create bytes from String
     final Bytes bytes = Bytes.fromHexString(rlp_tx);
     // Decode bytes into a transaction
-    final Transaction transaction = decodeRLP(RLP.input(Bytes.fromHexString(rlp_tx)));
+    final Transaction transaction = decodeRLP(RLP.input(bytes));
+    Bytes transactionBytes =
+        TransactionEncoder.encodeOpaqueBytes(transaction, EncodingContext.POOLED_TRANSACTION);
     // Bytes size should be equal to transaction size
-    assertThat(transaction.getSize()).isEqualTo(bytes.size());
+    assertThat(transaction.getSize()).isEqualTo(transactionBytes.size());
   }
 
   @ParameterizedTest
@@ -107,6 +109,6 @@ void shouldReturnCorrectEncodedBytes(final String txRlp) {
   }
 
   private Transaction decodeRLP(final RLPInput input) {
-    return TransactionDecoder.decodeRLP(input, EncodingContext.BLOCK_BODY);
+    return TransactionDecoder.decodeRLP(input, EncodingContext.POOLED_TRANSACTION);
   }
 }