diff --git a/engine/account.go b/engine/account.go
index ad4bf6857..611235346 100644
--- a/engine/account.go
+++ b/engine/account.go
@@ -532,6 +532,28 @@ func (ub *Account) debitCreditBalance(cd *CallDescriptor, count bool, dryRun boo
 				cost := increment.Cost
 				defaultBalance := ub.GetDefaultMoneyBalance()
 				defaultBalance.SubstractValue(cost)
+				//send default balance to thresholdS to be processed
+				acntTnt := utils.NewTenantID(ub.ID)
+				thEv := &ArgsProcessEvent{
+					CGREvent: utils.CGREvent{
+						Tenant: acntTnt.Tenant,
+						ID:     utils.GenUUID(),
+						Event: map[string]interface{}{
+							utils.EventType:   utils.BalanceUpdate,
+							utils.EventSource: utils.AccountService,
+							utils.Account:     acntTnt.ID,
+							utils.BalanceID:   defaultBalance.ID,
+							utils.Units:       defaultBalance.Value}}}
+				if thresholdS != nil {
+					var tIDs []string
+					if err := thresholdS.Call(utils.ThresholdSv1ProcessEvent, thEv, &tIDs); err != nil &&
+						err.Error() != utils.ErrNotFound.Error() {
+						utils.Logger.Warning(
+							fmt.Sprintf("<AccountS> error: %s processing balance event %+v with ThresholdS.",
+								err.Error(), thEv))
+					}
+				}
+
 				increment.BalanceInfo.Monetary = &MonetaryInfo{
 					UUID:  defaultBalance.Uuid,
 					ID:    defaultBalance.ID,