diff --git a/src/rpc/mempool.cpp b/src/rpc/mempool.cpp
index 919c30464dd..147af369d34 100644
--- a/src/rpc/mempool.cpp
+++ b/src/rpc/mempool.cpp
@@ -955,7 +955,7 @@ static RPCHelpMan submitpackage()
             RPCResult::Type::OBJ, "", "",
             {
                 {RPCResult::Type::STR, "package_msg", "The transaction package result message. \"success\" indicates all transactions were accepted into or are already in the mempool."},
-                {RPCResult::Type::OBJ_DYN, "tx-results", "transaction results keyed by wtxid",
+                {RPCResult::Type::OBJ_DYN, "tx-results", "The transaction results keyed by wtxid. An entry is returned for every submitted wtxid.",
                 {
                     {RPCResult::Type::OBJ, "wtxid", "transaction wtxid", {
                         {RPCResult::Type::STR_HEX, "txid", "The transaction hash in hex"},
@@ -968,7 +968,7 @@ static RPCHelpMan submitpackage()
                                 {{RPCResult::Type::STR_HEX, "", "transaction wtxid in hex"},
                             }},
                         }},
-                        {RPCResult::Type::STR, "error", /*optional=*/true, "The transaction error string, if it was rejected by the mempool"},
+                        {RPCResult::Type::STR, "error", /*optional=*/true, "Error string if rejected from mempool, or \"package-not-validated\" when the package aborts before any per-tx processing."},
                     }}
                 }},
                 {RPCResult::Type::ARR, "replaced-transactions", /*optional=*/true, "List of txids of replaced transactions",
@@ -1082,10 +1082,15 @@ static RPCHelpMan submitpackage()
             for (const auto& tx : txns) {
                 UniValue result_inner{UniValue::VOBJ};
                 result_inner.pushKV("txid", tx->GetHash().GetHex());
+                const auto wtxid_hex = tx->GetWitnessHash().GetHex();
                 auto it = package_result.m_tx_results.find(tx->GetWitnessHash());
                 if (it == package_result.m_tx_results.end()) {
-                    // No results, report error and continue
-                    result_inner.pushKV("error", "unevaluated");
+                    // No per-tx result for this wtxid
+                    // Current invariant: per-tx results are all-or-none (every member or empty on package abort).
+                    // If any exist yet this one is missing, it's an unexpected partial map.
+                    CHECK_NONFATAL(package_result.m_tx_results.empty());
+                    result_inner.pushKV("error", "package-not-validated");
+                    tx_result_map.pushKV(wtxid_hex, std::move(result_inner));
                     continue;
                 }
                 const auto& tx_result = it->second;
@@ -1118,7 +1123,7 @@ static RPCHelpMan submitpackage()
                     }
                     break;
                 }
-                tx_result_map.pushKV(tx->GetWitnessHash().GetHex(), std::move(result_inner));
+                tx_result_map.pushKV(wtxid_hex, std::move(result_inner));
             }
             rpc_result.pushKV("tx-results", std::move(tx_result_map));
             UniValue replaced_list(UniValue::VARR);
diff --git a/test/functional/rpc_packages.py b/test/functional/rpc_packages.py
index 325a29c4efc..2249fe49b56 100755
--- a/test/functional/rpc_packages.py
+++ b/test/functional/rpc_packages.py
@@ -263,13 +263,23 @@ class RPCPackagesTest(BitcoinTestFramework):
         ])
 
         submitres = node.submitpackage([tx1["hex"], tx2["hex"], tx_child["hex"]])
-        assert_equal(submitres, {'package_msg': 'conflict-in-package', 'tx-results': {}, 'replaced-transactions': []})
+        expected = {
+            tx1["wtxid"]: {"txid": tx1["txid"], "error": "package-not-validated"},
+            tx2["wtxid"]: {"txid": tx2["txid"], "error": "package-not-validated"},
+            tx_child["wtxid"]: {"txid": tx_child["txid"], "error": "package-not-validated"},
+        }
+        assert_equal(submitres, {"package_msg": "conflict-in-package", "tx-results": expected,"replaced-transactions": []})
 
         # Submit tx1 to mempool, then try the same package again
         node.sendrawtransaction(tx1["hex"])
 
         submitres = node.submitpackage([tx1["hex"], tx2["hex"], tx_child["hex"]])
-        assert_equal(submitres, {'package_msg': 'conflict-in-package', 'tx-results': {}, 'replaced-transactions': []})
+        expected = {
+            tx1["wtxid"]: {"txid": tx1["txid"], "error": "package-not-validated"},
+            tx2["wtxid"]: {"txid": tx2["txid"], "error": "package-not-validated"},
+            tx_child["wtxid"]: {"txid": tx_child["txid"], "error": "package-not-validated"},
+        }
+        assert_equal(submitres, {"package_msg": "conflict-in-package", "tx-results": expected,"replaced-transactions": []})
         assert tx_child["txid"] not in node.getrawmempool()
 
         # without the in-mempool ancestor tx1 included in the call, tx2 can be submitted, but