diff --git a/app/src/main/java/io/horizontalsystems/bitcoinkit/demo/BalanceFragment.kt b/app/src/main/java/io/horizontalsystems/bitcoinkit/demo/BalanceFragment.kt
index 3fac4efd..cbe0f98a 100644
--- a/app/src/main/java/io/horizontalsystems/bitcoinkit/demo/BalanceFragment.kt
+++ b/app/src/main/java/io/horizontalsystems/bitcoinkit/demo/BalanceFragment.kt
@@ -41,7 +41,7 @@ class BalanceFragment : Fragment() {
                 }
                 else -> {
                     balanceValue.text = NumberFormatHelper.cryptoAmountFormat.format(balance.spendable / 100_000_000.0)
-                    balanceUnspendableValue.text = NumberFormatHelper.cryptoAmountFormat.format(balance.unspendable / 100_000_000.0)
+                    balanceUnspendableValue.text = NumberFormatHelper.cryptoAmountFormat.format((balance.unspendableTimeLocked + balance.unspendableNotRelayed) / 100_000_000.0)
                 }
             }
         })
diff --git a/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/BitcoinCoreBuilder.kt b/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/BitcoinCoreBuilder.kt
index da4ee20c..141baaaa 100644
--- a/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/BitcoinCoreBuilder.kt
+++ b/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/BitcoinCoreBuilder.kt
@@ -491,7 +491,7 @@ class BitcoinCoreBuilder {
             val signer = TransactionSigner(ecdsaInputSigner, schnorrInputSigner)
             transactionCreator = TransactionCreator(transactionBuilder, pendingTransactionProcessor, transactionSenderInstance, signer, bloomFilterManager)
             replacementTransactionBuilder = ReplacementTransactionBuilder(
-                storage, transactionSizeCalculator, dustCalculator, metadataExtractor, pluginManager, unspentOutputProvider, publicKeyManager, conflictsResolver
+                storage, transactionSizeCalculator, dustCalculator, metadataExtractor, pluginManager, unspentOutputProvider, publicKeyManager, conflictsResolver, lockTimeSetter
             )
         }
 
diff --git a/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/managers/UnspentOutputProvider.kt b/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/managers/UnspentOutputProvider.kt
index a3d0e3ac..81e63953 100644
--- a/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/managers/UnspentOutputProvider.kt
+++ b/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/managers/UnspentOutputProvider.kt
@@ -18,17 +18,20 @@ class UnspentOutputProvider(
         }
     }
 
-    private fun getUnspendableUtxo(): List<UnspentOutput> {
-        return allUtxo().filter {
-            !pluginManager.isSpendable(it) || it.transaction.status != Transaction.Status.RELAYED
-        }
+    private fun getUnspendableTimeLockedUtxo() = allUtxo().filter {
+        !pluginManager.isSpendable(it)
+    }
+
+    private fun getUnspendableNotRelayedUtxo() = allUtxo().filter {
+        it.transaction.status != Transaction.Status.RELAYED
     }
 
     fun getBalance(): BalanceInfo {
         val spendable = getSpendableUtxo().sumOf { it.output.value }
-        val unspendable = getUnspendableUtxo().sumOf { it.output.value }
+        val unspendableTimeLocked = getUnspendableTimeLockedUtxo().sumOf { it.output.value }
+        val unspendableNotRelayed = getUnspendableNotRelayedUtxo().sumOf { it.output.value }
 
-        return BalanceInfo(spendable, unspendable)
+        return BalanceInfo(spendable, unspendableTimeLocked, unspendableNotRelayed)
     }
 
     // Only confirmed spendable outputs
diff --git a/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/models/TransactionInfo.kt b/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/models/TransactionInfo.kt
index 6b4c014f..3bea1fd6 100644
--- a/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/models/TransactionInfo.kt
+++ b/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/models/TransactionInfo.kt
@@ -187,4 +187,4 @@ data class BlockInfo(
         val timestamp: Long
 )
 
-data class BalanceInfo(val spendable: Long, val unspendable: Long)
+data class BalanceInfo(val spendable: Long, val unspendableTimeLocked: Long, val unspendableNotRelayed: Long)
diff --git a/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/rbf/ReplacementTransactionBuilder.kt b/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/rbf/ReplacementTransactionBuilder.kt
index 4cca8a22..d12fcbe2 100644
--- a/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/rbf/ReplacementTransactionBuilder.kt
+++ b/bitcoincore/src/main/kotlin/io/horizontalsystems/bitcoincore/rbf/ReplacementTransactionBuilder.kt
@@ -19,6 +19,7 @@ import io.horizontalsystems.bitcoincore.storage.InputWithPreviousOutput
 import io.horizontalsystems.bitcoincore.storage.UnspentOutput
 import io.horizontalsystems.bitcoincore.transactions.TransactionConflictsResolver
 import io.horizontalsystems.bitcoincore.transactions.TransactionSizeCalculator
+import io.horizontalsystems.bitcoincore.transactions.builder.LockTimeSetter
 import io.horizontalsystems.bitcoincore.transactions.builder.MutableTransaction
 import io.horizontalsystems.bitcoincore.transactions.extractors.TransactionMetadataExtractor
 import io.horizontalsystems.bitcoincore.utils.ShuffleSorter
@@ -32,7 +33,8 @@ class ReplacementTransactionBuilder(
     private val pluginManager: PluginManager,
     private val unspentOutputProvider: UnspentOutputProvider,
     private val publicKeyManager: IPublicKeyManager,
-    private val conflictsResolver: TransactionConflictsResolver
+    private val conflictsResolver: TransactionConflictsResolver,
+    private val lockTimeSetter: LockTimeSetter
 ) {
 
     private fun replacementTransaction(
@@ -181,6 +183,7 @@ class ReplacementTransactionBuilder(
                 mutableTransaction = mutableTransaction,
                 outputs = fixedOutputs + outputs
             )
+            lockTimeSetter.setLockTime(mutableTransaction)
             mutableTransaction
         }
     }
@@ -382,9 +385,13 @@ class ReplacementTransactionBuilder(
         }
 
         val confirmedUtxoTotalValue = unspentOutputProvider.getConfirmedSpendableUtxo().sumOf { it.output.value }
-        val feeRange = LongRange(absoluteFee, originalFee + removableOutputsValue + confirmedUtxoTotalValue)
+        val maxFeeAmount = originalFee + removableOutputsValue + confirmedUtxoTotalValue
 
-        return ReplacementTransactionInfo(replacementTxMinSize, feeRange)
+        return if (absoluteFee > maxFeeAmount) {
+            null
+        } else {
+            ReplacementTransactionInfo(replacementTxMinSize, LongRange(absoluteFee, maxFeeAmount))
+        }
     }
 
     sealed class BuildError : Throwable() {