diff --git a/src/Neo/Ledger/TransactionVerificationContext.cs b/src/Neo/Ledger/TransactionVerificationContext.cs
index 021f71ad9c..03ae0ca6ec 100644
--- a/src/Neo/Ledger/TransactionVerificationContext.cs
+++ b/src/Neo/Ledger/TransactionVerificationContext.cs
@@ -12,6 +12,7 @@
 using Neo.Persistence;
 using Neo.SmartContract.Native;
 using System.Collections.Generic;
+using System.Linq;
 using System.Numerics;
 
 namespace Neo.Ledger
@@ -59,7 +60,7 @@ public bool CheckTransaction(Transaction tx, IEnumerable<Transaction> conflictin
             senderFee.TryGetValue(tx.Sender, out var totalSenderFeeFromPool);
 
             BigInteger fee = tx.SystemFee + tx.NetworkFee + totalSenderFeeFromPool;
-            foreach (var conflictTx in conflictingTxs)
+            foreach (var conflictTx in conflictingTxs.Where(c => c.Sender.Equals(tx.Sender)))
             {
                 fee -= conflictTx.NetworkFee + conflictTx.SystemFee;
             }
diff --git a/src/Neo/Network/P2P/Payloads/Transaction.cs b/src/Neo/Network/P2P/Payloads/Transaction.cs
index 5babf5b822..24581e2b18 100644
--- a/src/Neo/Network/P2P/Payloads/Transaction.cs
+++ b/src/Neo/Network/P2P/Payloads/Transaction.cs
@@ -338,7 +338,7 @@ public JObject ToJson(ProtocolSettings settings)
         /// <param name="settings">The <see cref="ProtocolSettings"/> used to verify the transaction.</param>
         /// <param name="snapshot">The snapshot used to verify the transaction.</param>
         /// <param name="context">The <see cref="TransactionVerificationContext"/> used to verify the transaction.</param>
-        /// <param name="conflictsList">The list of conflicting <see cref="Transaction"/> those fee should be excluded from sender's overall fee during <see cref="TransactionVerificationContext"/>-based verification.</param>
+        /// <param name="conflictsList">The list of conflicting <see cref="Transaction"/> those fee should be excluded from sender's overall fee during <see cref="TransactionVerificationContext"/>-based verification in case of sender's match.</param>
         /// <returns>The result of the verification.</returns>
         public VerifyResult Verify(ProtocolSettings settings, DataCache snapshot, TransactionVerificationContext context, IEnumerable<Transaction> conflictsList)
         {
@@ -353,7 +353,7 @@ public VerifyResult Verify(ProtocolSettings settings, DataCache snapshot, Transa
         /// <param name="settings">The <see cref="ProtocolSettings"/> used to verify the transaction.</param>
         /// <param name="snapshot">The snapshot used to verify the transaction.</param>
         /// <param name="context">The <see cref="TransactionVerificationContext"/> used to verify the transaction.</param>
-        /// <param name="conflictsList">The list of conflicting <see cref="Transaction"/> those fee should be excluded from sender's overall fee during <see cref="TransactionVerificationContext"/>-based verification.</param>
+        /// <param name="conflictsList">The list of conflicting <see cref="Transaction"/> those fee should be excluded from sender's overall fee during <see cref="TransactionVerificationContext"/>-based verification in case of sender's match.</param>
         /// <returns>The result of the verification.</returns>
         public virtual VerifyResult VerifyStateDependent(ProtocolSettings settings, DataCache snapshot, TransactionVerificationContext context, IEnumerable<Transaction> conflictsList)
         {