diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -1802,29 +1802,30 @@
             "is finalized\n"
             "      \"missing\" : {               (json object, optional) "
             "Things that are missing that are required to complete this input\n"
-            "        \"pubkeys\" : [             (array)\n"
+            "        \"pubkeys\" : [             (array), optional\n"
             "          \"keyid\"                 (string) Public key ID, "
             "hash160 of the public key, of a public key whose BIP 32 "
             "derivation path is missing\n"
             "        ]\n"
-            "        \"signatures\" : [          (array)\n"
+            "        \"signatures\" : [          (array), optional\n"
             "          \"keyid\"                 (string) Public key ID, "
             "hash160 of the public key, of a public key whose signature is "
             "missing\n"
             "        ]\n"
-            "        \"redeemscript\" : \"hash\"   (string) Hash160 of the "
-            "redeemScript that is missing\n"
+            "        \"redeemscript\" : \"hash\"   (string, optional) Hash160 "
+            "of the redeemScript that is missing\n"
             "      }\n"
-            "      \"next\" : \"role\"           (string) Role of the next "
-            "person that this input needs to go to\n"
+            "      \"next\" : \"role\"           (string, optional) Role of "
+            "the next person that this input needs to go to\n"
             "    }\n"
             "    ,...\n"
             "  ]\n"
-            "  \"estimated_vsize\" : vsize       (numeric) Estimated vsize of "
-            "the final signed transaction\n"
+            "  \"estimated_vsize\" : vsize       (numeric, optional) Estimated "
+            "vsize of the final signed transaction\n"
             "  \"estimated_feerate\" : feerate   (numeric, optional) Estimated "
-            "feerate of the final signed transaction. Shown only if all UTXO "
-            "slots in the PSBT have been filled.\n"
+            "feerate of the final signed transaction in " +
+            CURRENCY_UNIT +
+            "/kB. Shown only if all UTXO slots in the PSBT have been filled.\n"
             "  \"fee\" : fee                     (numeric, optional) The "
             "transaction fee paid. Shown only if all UTXO slots in the PSBT "
             "have been filled.\n"
diff --git a/test/functional/rpc_psbt.py b/test/functional/rpc_psbt.py
--- a/test/functional/rpc_psbt.py
+++ b/test/functional/rpc_psbt.py
@@ -328,7 +328,7 @@
 
         # Check fee and size things
         assert analyzed['fee'] == Decimal(
-            '0.00100000') and analyzed['estimated_vsize'] == 191 and analyzed['estimated_feerate'] == Decimal('0.00523560')
+            '0.001') and analyzed['estimated_vsize'] == 191 and analyzed['estimated_feerate'] == Decimal('0.00523560')
 
         # After signing and finalizing, needs extracting
         signed = self.nodes[1].walletprocesspsbt(updated)['psbt']