diff --git a/services/integration/invoiceIntegration.js b/services/integration/invoiceIntegration.js
index 3cef4a0..b2a49b0 100644
--- a/services/integration/invoiceIntegration.js
+++ b/services/integration/invoiceIntegration.js
@@ -228,7 +228,7 @@ const createNegativeFeeForDiscount = (memberData, dateRange) => {
     const { totalBookedHours, totalChargedHours, totalBookingChargedFee } = bookingData;
     const { memberId, officeId } = member;
 
-    let dateForDiscount = moment.utc().startOf('day').subtract(1, 'month').toISOString();
+    let dateForDiscount = moment.utc().subtract(1, 'month').startOf('month').toISOString();
     if (dateRange.startDate){
         dateForDiscount = moment.utc(dateRange.startDate, DEFAULT_DATE_FORMAT).startOf('month').toISOString();
     }