diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -871,7 +871,9 @@
     // Parse the prevtxs array
     ParsePrevouts(request.params[2], &keystore, coins);
 
-    return SignTransaction(mtx, &keystore, coins, request.params[3]);
+    UniValue result(UniValue::VOBJ);
+    SignTransaction(mtx, &keystore, coins, request.params[3], result);
+    return result;
 }
 
 static UniValue sendrawtransaction(const Config &config,
diff --git a/src/rpc/rawtransaction_util.h b/src/rpc/rawtransaction_util.h
--- a/src/rpc/rawtransaction_util.h
+++ b/src/rpc/rawtransaction_util.h
@@ -24,12 +24,11 @@
  * @param  coins         Map of unspent outputs - coins in mempool and current
  * chain UTXO set, may be extended by previous txns outputs after call
  * @param  hashType      The signature hash type
- * @returns JSON object with details of signed transaction
+ * @param result         JSON object where signed transaction results accumulate
  */
-UniValue SignTransaction(CMutableTransaction &mtx,
-                         const SigningProvider *keystore,
-                         std::map<COutPoint, Coin> &coins,
-                         const UniValue &hashType);
+void SignTransaction(CMutableTransaction &mtx, const SigningProvider *keystore,
+                     std::map<COutPoint, Coin> &coins, const UniValue &hashType,
+                     UniValue &result);
 
 /**
  * Parse a prevtxs UniValue array and get the map of coins from it
diff --git a/src/rpc/rawtransaction_util.cpp b/src/rpc/rawtransaction_util.cpp
--- a/src/rpc/rawtransaction_util.cpp
+++ b/src/rpc/rawtransaction_util.cpp
@@ -254,10 +254,9 @@
     }
 }
 
-UniValue SignTransaction(CMutableTransaction &mtx,
-                         const SigningProvider *keystore,
-                         std::map<COutPoint, Coin> &coins,
-                         const UniValue &hashType) {
+void SignTransaction(CMutableTransaction &mtx, const SigningProvider *keystore,
+                     std::map<COutPoint, Coin> &coins, const UniValue &hashType,
+                     UniValue &result) {
     SigHashType sigHashType = ParseSighashString(hashType);
     if (!sigHashType.hasForkId()) {
         throw JSONRPCError(RPC_INVALID_PARAMETER,
@@ -313,12 +312,12 @@
 
     bool fComplete = vErrors.empty();
 
-    UniValue result(UniValue::VOBJ);
     result.pushKV("hex", EncodeHexTx(CTransaction(mtx)));
     result.pushKV("complete", fComplete);
     if (!vErrors.empty()) {
+        if (result.exists("errors")) {
+            vErrors.push_backV(result["errors"].getValues());
+        }
         result.pushKV("errors", vErrors);
     }
-
-    return result;
 }
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -3894,8 +3894,10 @@
     // Parse the prevtxs array
     ParsePrevouts(request.params[1], nullptr, coins);
 
-    return SignTransaction(mtx, &*pwallet->GetLegacyScriptPubKeyMan(), coins,
-                           request.params[2]);
+    UniValue result(UniValue::VOBJ);
+    SignTransaction(mtx, &*pwallet->GetLegacyScriptPubKeyMan(), coins,
+                    request.params[2], result);
+    return result;
 }
 
 UniValue rescanblockchain(const Config &config, const JSONRPCRequest &request) {