diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 51bc218d3..a77fea8ea 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -18,6 +18,7 @@
 #include <key_io.h>
 #include <policy/feerate.h>
 #include <policy/policy.h>
+#include <policy/rbf.h>
 #include <primitives/transaction.h>
 #include <rpc/server.h>
 #include <script/descriptor.h>
@@ -379,7 +380,8 @@ static std::string EntryDescriptionString()
            "       ... ]\n"
            "    \"spentby\" : [           (array) unconfirmed transactions spending outputs from this transaction\n"
            "        \"transactionid\",    (string) child transaction id\n"
-           "       ... ]\n";
+           "       ... ]\n"
+           "    \"bip125-replaceable\" : true|false,  (boolean) Whether this transaction could be replaced due to BIP125 (replace-by-fee)\n";
 }
 
 static void entryToJSON(UniValue &info, const CTxMemPoolEntry &e) EXCLUSIVE_LOCKS_REQUIRED(::mempool.cs)
@@ -429,6 +431,17 @@ static void entryToJSON(UniValue &info, const CTxMemPoolEntry &e) EXCLUSIVE_LOCK
     }
 
     info.pushKV("spentby", spent);
+
+    // Add opt-in RBF status
+    bool rbfStatus = false;
+    RBFTransactionState rbfState = IsRBFOptIn(tx, mempool);
+    if (rbfState == RBFTransactionState::UNKNOWN) {
+        throw JSONRPCError(RPC_MISC_ERROR, "Transaction is not in mempool");
+    } else if (rbfState == RBFTransactionState::REPLACEABLE_BIP125) {
+        rbfStatus = true;
+    }
+
+    info.pushKV("bip125-replaceable", rbfStatus);
 }
 
 UniValue mempoolToJSON(bool fVerbose)
diff --git a/test/functional/feature_rbf.py b/test/functional/feature_rbf.py
index 6105da810..7e84ba43b 100755
--- a/test/functional/feature_rbf.py
+++ b/test/functional/feature_rbf.py
@@ -429,6 +429,9 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         tx1a_hex = txToHex(tx1a)
         tx1a_txid = self.nodes[0].sendrawtransaction(tx1a_hex, True)
 
+        # This transaction isn't shown as replaceable
+        assert_equal(self.nodes[0].getmempoolentry(tx1a_txid)['bip125-replaceable'], False)
+
         # Shouldn't be able to double-spend
         tx1b = CTransaction()
         tx1b.vin = [CTxIn(tx0_outpoint, nSequence=0)]
@@ -469,7 +472,10 @@ class ReplaceByFeeTest(BitcoinTestFramework):
         tx3a.vout = [CTxOut(int(0.9*COIN), CScript([b'c'])), CTxOut(int(0.9*COIN), CScript([b'd']))]
         tx3a_hex = txToHex(tx3a)
 
-        self.nodes[0].sendrawtransaction(tx3a_hex, True)
+        tx3a_txid = self.nodes[0].sendrawtransaction(tx3a_hex, True)
+
+        # This transaction is shown as replaceable
+        assert_equal(self.nodes[0].getmempoolentry(tx3a_txid)['bip125-replaceable'], True)
 
         tx3b = CTransaction()
         tx3b.vin = [CTxIn(COutPoint(tx1a_txid, 0), nSequence=0)]