diff --git a/sweep/sweeper.go b/sweep/sweeper.go
index 9c8e59c7..1785d70b 100644
--- a/sweep/sweeper.go
+++ b/sweep/sweeper.go
@@ -80,6 +80,10 @@ type pendingInput struct {
 	// map it into a fee rate whenever we attempt to cluster inputs for a
 	// sweep.
 	feePreference FeePreference
+
+	// lastFeeRate is the most recent fee rate used for this input within a
+	// transaction broadcast to the network.
+	lastFeeRate lnwallet.SatPerKWeight
 }
 
 // pendingInputs is a type alias for a set of pending inputs.
@@ -580,6 +584,8 @@ func (s *UtxoSweeper) clusterBySweepFeeRate() []inputCluster {
 			inputs = make(pendingInputs)
 			bucketInputs[bucket] = inputs
 		}
+
+		input.lastFeeRate = feeRate
 		inputs[op] = input
 		inputFeeRates[op] = feeRate
 	}