diff --git a/server/AyaNova/biz/ServiceBankBiz.cs b/server/AyaNova/biz/ServiceBankBiz.cs
index 88faa535..961687b9 100644
--- a/server/AyaNova/biz/ServiceBankBiz.cs
+++ b/server/AyaNova/biz/ServiceBankBiz.cs
@@ -141,17 +141,17 @@ namespace AyaNova.Biz
             }
 
             //values must add up
-            if (proposedObj.IncidentsBalance != proposedObj.LastIncidentsBalance + proposedObj.Incidents)
+            if (proposedObj.LastIncidentsBalance != null && proposedObj.IncidentsBalance != proposedObj.LastIncidentsBalance + proposedObj.Incidents)
             {
                 AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "generalerror", "LT:ServiceBankIncidentsBalance");
                 return;
             }
-            if (proposedObj.CurrencyBalance != proposedObj.LastCurrencyBalance + proposedObj.Currency)
+            if (proposedObj.LastCurrencyBalance != null && proposedObj.CurrencyBalance != proposedObj.LastCurrencyBalance + proposedObj.Currency)
             {
                 AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "generalerror", "LT:ServiceBankCurrencyBalance");
                 return;
             }
-            if (proposedObj.HoursBalance != proposedObj.LastHoursBalance + proposedObj.Hours)
+            if (proposedObj.LastHoursBalance != null && proposedObj.HoursBalance != proposedObj.LastHoursBalance + proposedObj.Hours)
             {
                 AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "generalerror", "LT:ServiceBankHoursBalance");
                 return;
@@ -252,7 +252,7 @@ namespace AyaNova.Biz
 
             //SPECIFIC EVENTS FOR THIS OBJECT
             var o = (ServiceBank)proposedObj;
-            
+
 
             //SERVICE BANK DEPLETED   
             {