diff --git a/core/src/main/java/tech/pegasys/web3signer/core/service/jsonrpc/handlers/sendtransaction/transaction/BesuPrivateTransaction.java b/core/src/main/java/tech/pegasys/web3signer/core/service/jsonrpc/handlers/sendtransaction/transaction/BesuPrivateTransaction.java
index 8d0963a9d..cffded33a 100644
--- a/core/src/main/java/tech/pegasys/web3signer/core/service/jsonrpc/handlers/sendtransaction/transaction/BesuPrivateTransaction.java
+++ b/core/src/main/java/tech/pegasys/web3signer/core/service/jsonrpc/handlers/sendtransaction/transaction/BesuPrivateTransaction.java
@@ -51,14 +51,29 @@ private BesuPrivateTransaction(
 
   @Override
   protected RawPrivateTransaction createTransaction() {
-    return RawPrivateTransaction.createTransaction(
-        nonce,
-        transactionJsonParameters.gasPrice().orElse(DEFAULT_GAS_PRICE),
-        transactionJsonParameters.gas().orElse(DEFAULT_GAS),
-        transactionJsonParameters.receiver().orElse(DEFAULT_TO),
-        transactionJsonParameters.data().orElse(DEFAULT_DATA),
-        transactionJsonParameters.privateFrom(),
-        privacyGroupId,
-        Restriction.fromString(transactionJsonParameters.restriction()));
+    if (transactionJsonParameters.maxPriorityFeePerGas().isPresent()
+        && transactionJsonParameters.maxFeePerGas().isPresent()) {
+      return RawPrivateTransaction.createTransaction(
+          chainId,
+          nonce,
+          transactionJsonParameters.maxPriorityFeePerGas().orElseThrow(),
+          transactionJsonParameters.maxFeePerGas().orElseThrow(),
+          transactionJsonParameters.gas().orElse(DEFAULT_GAS),
+          transactionJsonParameters.receiver().orElse(DEFAULT_TO),
+          transactionJsonParameters.data().orElse(DEFAULT_DATA),
+          transactionJsonParameters.privateFrom(),
+          privacyGroupId,
+          Restriction.fromString(transactionJsonParameters.restriction()));
+    } else {
+      return RawPrivateTransaction.createTransaction(
+          nonce,
+          transactionJsonParameters.gasPrice().orElse(DEFAULT_GAS_PRICE),
+          transactionJsonParameters.gas().orElse(DEFAULT_GAS),
+          transactionJsonParameters.receiver().orElse(DEFAULT_TO),
+          transactionJsonParameters.data().orElse(DEFAULT_DATA),
+          transactionJsonParameters.privateFrom(),
+          privacyGroupId,
+          Restriction.fromString(transactionJsonParameters.restriction()));
+    }
   }
 }
diff --git a/core/src/main/java/tech/pegasys/web3signer/core/service/jsonrpc/handlers/sendtransaction/transaction/EeaPrivateTransaction.java b/core/src/main/java/tech/pegasys/web3signer/core/service/jsonrpc/handlers/sendtransaction/transaction/EeaPrivateTransaction.java
index 27239c658..1abec01af 100644
--- a/core/src/main/java/tech/pegasys/web3signer/core/service/jsonrpc/handlers/sendtransaction/transaction/EeaPrivateTransaction.java
+++ b/core/src/main/java/tech/pegasys/web3signer/core/service/jsonrpc/handlers/sendtransaction/transaction/EeaPrivateTransaction.java
@@ -67,14 +67,28 @@ public String toString() {
 
   @Override
   protected RawPrivateTransaction createTransaction() {
-    return RawPrivateTransaction.createTransaction(
-        nonce,
-        transactionJsonParameters.gasPrice().orElse(DEFAULT_GAS_PRICE),
-        transactionJsonParameters.gas().orElse(DEFAULT_GAS),
-        transactionJsonParameters.receiver().orElse(DEFAULT_TO),
-        transactionJsonParameters.data().orElse(DEFAULT_DATA),
-        transactionJsonParameters.privateFrom(),
-        privateFor,
-        Restriction.fromString(transactionJsonParameters.restriction()));
+    if (isEip1559()) {
+      return RawPrivateTransaction.createTransaction(
+          chainId,
+          nonce,
+          transactionJsonParameters.maxPriorityFeePerGas().orElseThrow(),
+          transactionJsonParameters.maxFeePerGas().orElseThrow(),
+          transactionJsonParameters.gas().orElse(DEFAULT_GAS),
+          transactionJsonParameters.receiver().orElse(DEFAULT_TO),
+          transactionJsonParameters.data().orElse(DEFAULT_DATA),
+          transactionJsonParameters.privateFrom(),
+          privateFor,
+          Restriction.fromString(transactionJsonParameters.restriction()));
+    } else {
+      return RawPrivateTransaction.createTransaction(
+          nonce,
+          transactionJsonParameters.gasPrice().orElse(DEFAULT_GAS_PRICE),
+          transactionJsonParameters.gas().orElse(DEFAULT_GAS),
+          transactionJsonParameters.receiver().orElse(DEFAULT_TO),
+          transactionJsonParameters.data().orElse(DEFAULT_DATA),
+          transactionJsonParameters.privateFrom(),
+          privateFor,
+          Restriction.fromString(transactionJsonParameters.restriction()));
+    }
   }
 }
diff --git a/core/src/test/java/tech/pegasys/web3signer/core/service/jsonrpc/sendtransaction/transaction/EeaPrivateTransactionTest.java b/core/src/test/java/tech/pegasys/web3signer/core/service/jsonrpc/sendtransaction/transaction/EeaPrivateTransactionTest.java
index 342078b42..5edf3018c 100644
--- a/core/src/test/java/tech/pegasys/web3signer/core/service/jsonrpc/sendtransaction/transaction/EeaPrivateTransactionTest.java
+++ b/core/src/test/java/tech/pegasys/web3signer/core/service/jsonrpc/sendtransaction/transaction/EeaPrivateTransactionTest.java
@@ -24,12 +24,17 @@
 import tech.pegasys.web3signer.core.service.jsonrpc.handlers.sendtransaction.transaction.PrivateTransaction;
 
 import java.math.BigInteger;
+import java.nio.ByteBuffer;
 import java.util.List;
 
 import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import org.web3j.crypto.Sign.SignatureData;
+import org.web3j.crypto.transaction.type.Transaction1559;
+import org.web3j.crypto.transaction.type.TransactionType;
 import org.web3j.protocol.eea.crypto.PrivateTransactionDecoder;
+import org.web3j.protocol.eea.crypto.RawPrivateTransaction;
 import org.web3j.protocol.eea.crypto.SignedRawPrivateTransaction;
 import org.web3j.utils.Base64String;
 import org.web3j.utils.Numeric;
@@ -92,6 +97,62 @@ public void rlpEncodesTransaction() {
     assertThat(trimLeadingZeroes(decodedSignatureData.getS())).isEqualTo(new byte[] {3});
   }
 
+  @Disabled("TODO SLD")
+  @Test
+  public void rlpEncodesEip1559Transaction() {
+    final EeaSendTransactionJsonParameters params =
+        new EeaSendTransactionJsonParameters(
+            "0x7577919ae5df4941180eac211965f275cdce314d",
+            "ZlapEsl9qDLPy/e88+/6yvCUEVIvH83y0N4A6wHuKXI=",
+            "restricted");
+    params.receiver("0xd46e8dd67c5d32be8058bb8eb970870f07244567");
+    params.gas("0x76c0");
+    params.maxPriorityFeePerGas("0x9184e72a000");
+    params.maxFeePerGas("0x9184e72a001");
+    params.value("0x0");
+    params.nonce("0x1");
+    params.data(
+        "0xd46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675");
+    params.privateFor(new String[] {"GV8m0VZAccYGAAYMBuYQtKEj0XtpXeaw2APcoBmtA2w="});
+
+    privateTransaction =
+        EeaPrivateTransaction.from(1337L, params, () -> BigInteger.ZERO, new JsonRpcRequestId(1));
+
+    final SignatureData signatureData = null;
+    final byte[] rlpEncodedBytes = privateTransaction.rlpEncode(signatureData);
+    final String rlpString = Numeric.toHexString(prependEip1559TransactionType(rlpEncodedBytes));
+
+    final RawPrivateTransaction decodedTransaction = PrivateTransactionDecoder.decode(rlpString);
+    final Transaction1559 decoded1559Transaction =
+        (Transaction1559) decodedTransaction.getTransaction();
+    assertThat(decoded1559Transaction.getTo())
+        .isEqualTo("0xd46e8dd67c5d32be8058bb8eb970870f07244567");
+    assertThat(decoded1559Transaction.getGasLimit()).isEqualTo(decodeQuantity("0x76c0"));
+    assertThat(decoded1559Transaction.getMaxPriorityFeePerGas())
+        .isEqualTo(decodeQuantity("0x9184e72a000"));
+    assertThat(decoded1559Transaction.getMaxFeePerGas()).isEqualTo(decodeQuantity("0x9184e72a001"));
+    assertThat(decoded1559Transaction.getNonce()).isEqualTo(decodeQuantity("0x1"));
+    assertThat(decoded1559Transaction.getValue()).isEqualTo(decodeQuantity("0x0"));
+    assertThat(decoded1559Transaction.getData())
+        .isEqualTo(
+            "d46e8dd67c5d32be8d46e8dd67c5d32be8058bb8eb970870f072445675058bb8eb970870f072445675");
+    assertThat(decodedTransaction.getRestriction()).isEqualTo(Restriction.RESTRICTED);
+
+    final Base64String expectedDecodedPrivateFrom = params.privateFrom();
+    final Base64String expectedDecodedPrivateFor = params.privateFor().get().get(0);
+
+    assertThat(decodedTransaction.getPrivateFrom()).isEqualTo(expectedDecodedPrivateFrom);
+    assertThat(decodedTransaction.getPrivateFor().get().get(0))
+        .isEqualTo(expectedDecodedPrivateFor);
+  }
+
+  private static byte[] prependEip1559TransactionType(byte[] bytesToSign) {
+    return ByteBuffer.allocate(bytesToSign.length + 1)
+        .put(TransactionType.EIP1559.getRlpType())
+        .put(bytesToSign)
+        .array();
+  }
+
   @Test
   @SuppressWarnings("unchecked")
   public void createsJsonEeaRequest() {