diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 5546d6a..ed31451 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -1512,6 +1512,8 @@ model Task {
   requestWorkId   String
   requestWorkStep RequestWorkStepStatus @relation(fields: [step, requestWorkId], references: [step, requestWorkId])
 
+  discount Float @default(0)
+
   failedType    String?
   failedComment String?
 
diff --git a/src/controllers/07-task-controller.ts b/src/controllers/07-task-controller.ts
index 57df7ea..e7450b1 100644
--- a/src/controllers/07-task-controller.ts
+++ b/src/controllers/07-task-controller.ts
@@ -214,7 +214,7 @@ export class TaskController extends Controller {
       institutionId: string;
       registeredBranchId?: string;
 
-      taskList: { requestWorkId: string; step: number }[];
+      taskList: { requestWorkId: string; step: number; discount?: number }[];
     },
   ) {
     return await prisma.$transaction(async (tx) => {
@@ -343,7 +343,7 @@ export class TaskController extends Controller {
 
       institutionId: string;
 
-      taskList: { requestWorkId: string; step: number }[];
+      taskList: { requestWorkId: string; step: number; discount?: number }[];
     },
   ) {
     const record = await prisma.taskOrder.findFirst({