diff --git a/lib/data/models/invoice_model.dart b/lib/data/models/invoice_model.dart
index 690cfdab1..282c099b2 100644
--- a/lib/data/models/invoice_model.dart
+++ b/lib/data/models/invoice_model.dart
@@ -573,6 +573,22 @@ abstract class InvoiceEntity extends Object
       case InvoiceFields.date:
         response = invoiceA.date.compareTo(invoiceB.date);
         break;
+      case InvoiceFields.lastSentDate:
+        response = invoiceA.lastSentDate.compareTo(invoiceB.lastSentDate);
+        break;
+      case InvoiceFields.reminder1Sent:
+        response = invoiceA.reminder1Sent.compareTo(invoiceB.reminder1Sent);
+        break;
+      case InvoiceFields.reminder2Sent:
+        response = invoiceA.reminder2Sent.compareTo(invoiceB.reminder2Sent);
+        break;
+      case InvoiceFields.reminder3Sent:
+        response = invoiceA.reminder3Sent.compareTo(invoiceB.reminder3Sent);
+        break;
+      case InvoiceFields.reminderLastSent:
+        response =
+            invoiceA.reminderLastSent.compareTo(invoiceB.reminderLastSent);
+        break;
       case InvoiceFields.balance:
         response = invoiceA.balanceOrAmount.compareTo(invoiceB.balanceOrAmount);
         break;