diff --git a/Src/Dlhis.ScheduledTask/TaskAssignment/Controllers/AssignmentsController.cs b/Src/Dlhis.ScheduledTask/TaskAssignment/Controllers/AssignmentsController.cs
index aaade91f..44bdbc42 100644
--- a/Src/Dlhis.ScheduledTask/TaskAssignment/Controllers/AssignmentsController.cs
+++ b/Src/Dlhis.ScheduledTask/TaskAssignment/Controllers/AssignmentsController.cs
@@ -246,7 +246,7 @@ public class AssignmentsController : ControllerBase
             CostAmount = data.CostAmount,
             PaidAmount = request.Pay,
             RefundAmount = 0,
-            ClosingAmount = data.ClosingAmount - request.Pay,
+            ClosingAmount = data.ClosingAmount + request.Pay,
             Valid = true,
             TenantId = data.TenantId
         };
@@ -282,7 +282,7 @@ public class AssignmentsController : ControllerBase
             CostAmount = data.CostAmount,
             PaidAmount = 0,
             RefundAmount = request.Refund,
-            ClosingAmount = data.ClosingAmount - request.Refund,
+            ClosingAmount = data.ClosingAmount + request.Refund,
             Valid = true,
             TenantId = data.TenantId
         };