diff --git a/src/models/Staff.ts b/src/models/Staff.ts
index 25ddc02..ee38f7c 100644
--- a/src/models/Staff.ts
+++ b/src/models/Staff.ts
@@ -14,5 +14,18 @@ export interface Department {
     departmentName: string;
 }
 
-
+export interface Invoice {
+    invoiceNo: string;
+    invoiceCode: string;
+    invoiceDate: string;
+    invoiceUploader: string;
+    invoiceUploadTime: string;
+    invoiceState: number;
+    invoiceApprovalOpinion: string;
+    invoiceNote: string;
+    invoiceKind: string;
+    invoiceAmount: number;
+    reimbursementId: number;
+    modified: boolean;
+}