diff --git a/src/app/components/add-data.component.html b/src/app/components/add-data.component.html
index 62459d8..15197b6 100644
--- a/src/app/components/add-data.component.html
+++ b/src/app/components/add-data.component.html
@@ -146,6 +146,13 @@
         </div>
         <form class="form-horizontal" [formGroup]="singleSupplierForm" (ngSubmit)="onSubmitSingleSupplier()">
           <div class="card-block">
+            <div class="form-group row">
+              <label class="col-md-3 form-control-label" for="text-input"><strong>Period of entry month</strong></label>
+              <div class="col-md-9">
+                <input type="month" class="form-control" formControlName="entryperiod">
+                <span class="help-block">Must be filled in to submit this data.</span>
+              </div>
+            </div>
             <div class="form-group row">
               <label class="col-md-3 form-control-label" for="text-input">Supplier Business Name</label>
               <div class="col-md-9">
@@ -183,6 +190,13 @@
         </div>
         <form class="form-horizontal" [formGroup]="employeeForm" (ngSubmit)="onSubmitEmployee()">
           <div class="card-block">
+            <div class="form-group row">
+              <label class="col-md-3 form-control-label" for="text-input"><strong>Period of entry month</strong></label>
+              <div class="col-md-9">
+                <input type="month" class="form-control" formControlName="entryperiod">
+                <span class="help-block">Must be filled in to submit this data.</span>
+              </div>
+            </div>
             <div class="form-group row">
               <label class="col-md-3 form-control-label" for="text-input">Employee number</label>
               <div class="col-md-9">
diff --git a/src/app/components/add-data.component.ts b/src/app/components/add-data.component.ts
index 688245e..5abd822 100644
--- a/src/app/components/add-data.component.ts
+++ b/src/app/components/add-data.component.ts
@@ -37,11 +37,13 @@ export class AddDataComponent {
 		localsuppliersamount: ['', [Validators.required]],
 	  });
     this.singleSupplierForm = this.formBuilder.group({
+    entryperiod:          ['', [Validators.required]],
     supplierbusinessname: [''],
     postcode:             [''],
     monthlyspend:         [''],
 	  });
     this.employeeForm = this.formBuilder.group({
+    entryperiod:          ['', [Validators.required]],
     employeeno:           [''],
     employeeincometax:    [''],
     employeegrosswage:    [''],