diff --git a/TransactionProcessor.Settlement.DomainEvents/SettlementAggregateDomainEvents.cs b/TransactionProcessor.Settlement.DomainEvents/SettlementAggregateDomainEvents.cs
index d7dba482..2ecc4b20 100644
--- a/TransactionProcessor.Settlement.DomainEvents/SettlementAggregateDomainEvents.cs
+++ b/TransactionProcessor.Settlement.DomainEvents/SettlementAggregateDomainEvents.cs
@@ -28,7 +28,8 @@ public record MerchantFeeSettledEvent(Guid SettlementId,
 
     [ExcludeFromCodeCoverage]
     public record SettlementCompletedEvent(Guid SettlementId,
-                                           Guid EstateId) : DomainEvent(SettlementId, Guid.NewGuid());
+                                           Guid EstateId,
+                                           Guid MerchantId) : DomainEvent(SettlementId, Guid.NewGuid());
 
     [ExcludeFromCodeCoverage]
     public record SettlementCreatedForDateEvent(Guid SettlementId,
diff --git a/TransactionProcessor.SettlementAggregates/SettlementAggregate.cs b/TransactionProcessor.SettlementAggregates/SettlementAggregate.cs
index d4dade68..87e7c1b0 100644
--- a/TransactionProcessor.SettlementAggregates/SettlementAggregate.cs
+++ b/TransactionProcessor.SettlementAggregates/SettlementAggregate.cs
@@ -29,7 +29,7 @@ public static void ManuallyComplete(this SettlementAggregate aggregate){
             if (aggregate.SettlementComplete)
                 return;
 
-            SettlementCompletedEvent pendingSettlementCompletedEvent = new SettlementCompletedEvent(aggregate.AggregateId, aggregate.EstateId);
+            SettlementCompletedEvent pendingSettlementCompletedEvent = new SettlementCompletedEvent(aggregate.AggregateId, aggregate.EstateId, aggregate.MerchantId);
             aggregate.ApplyAndAppend(pendingSettlementCompletedEvent);
         }
 
@@ -58,7 +58,7 @@ public static void MarkFeeAsSettled(this SettlementAggregate aggregate, Guid mer
             if (aggregate.CalculatedFeesPendingSettlement.Any() == false)
             {
                 // Settlement is completed
-                SettlementCompletedEvent pendingSettlementCompletedEvent = new SettlementCompletedEvent(aggregate.AggregateId, aggregate.EstateId);
+                SettlementCompletedEvent pendingSettlementCompletedEvent = new SettlementCompletedEvent(aggregate.AggregateId, aggregate.EstateId, aggregate.MerchantId);
                 aggregate.ApplyAndAppend(pendingSettlementCompletedEvent);
             }
         }