diff --git a/engine/account.go b/engine/account.go
index 44d1dda1e..20f5b9d33 100644
--- a/engine/account.go
+++ b/engine/account.go
@@ -158,10 +158,10 @@ func (ub *Account) debitBalanceAction(a *Action) error {
 func (ub *Account) getBalancesForPrefix(prefix string, balances BalanceChain, sharedGroup string) BalanceChain {
 	var usefulBalances BalanceChain
 	for _, b := range balances {
-		if b.IsExpired() || (ub.AllowNegative == false && b.Value <= 0) {
+		if b.IsExpired() || (ub.AllowNegative == false && b.SharedGroup == "" && b.Value <= 0) {
 			continue
 		}
-		if sharedGroup != "" && b.SharedGroup != sharedGroup {
+		if sharedGroup != "" && sharedGroup != "" && b.SharedGroup != sharedGroup {
 			continue
 		}
 		if b.SharedGroup != "" {
diff --git a/engine/balances.go b/engine/balances.go
index 7ec85c336..ccdadfdd8 100644
--- a/engine/balances.go
+++ b/engine/balances.go
@@ -56,7 +56,10 @@ func (b *Balance) Equal(o *Balance) bool {
 
 // the default balance has no destinationid, Expirationdate or ratesubject
 func (b *Balance) IsDefault() bool {
-	return (b.DestinationId == "" || b.DestinationId == utils.ANY) && b.RateSubject == "" && b.ExpirationDate.IsZero()
+	return (b.DestinationId == "" || b.DestinationId == utils.ANY) &&
+		b.RateSubject == "" &&
+		b.ExpirationDate.IsZero() &&
+		b.SharedGroup == ""
 }
 
 func (b *Balance) IsExpired() bool {
diff --git a/engine/calldesc_test.go b/engine/calldesc_test.go
index 9ef7f043b..1c9fd8280 100644
--- a/engine/calldesc_test.go
+++ b/engine/calldesc_test.go
@@ -340,6 +340,45 @@ func TestMaxSessionTimeWithAccountAlias(t *testing.T) {
 	}
 }
 
+func TestMaxSessionTimeWithAccountShared(t *testing.T) {
+	ap, _ := accountingStorage.GetActionTimings("TOPUP_SHARED0_AT")
+	for _, at := range ap {
+		at.Execute()
+	}
+	ap, _ = accountingStorage.GetActionTimings("TOPUP_SHARED10_AT")
+	for _, at := range ap {
+		at.Execute()
+	}
+
+	cd0 := &CallDescriptor{
+		TimeStart:   time.Date(2013, 10, 21, 18, 34, 0, 0, time.UTC),
+		TimeEnd:     time.Date(2013, 10, 21, 18, 35, 0, 0, time.UTC),
+		Direction:   "*out",
+		TOR:         "0",
+		Tenant:      "vdf",
+		Subject:     "rif",
+		Account:     "empty0",
+		Destination: "0723",
+	}
+
+	cd1 := &CallDescriptor{
+		TimeStart:   time.Date(2013, 10, 21, 18, 34, 0, 0, time.UTC),
+		TimeEnd:     time.Date(2013, 10, 21, 18, 35, 0, 0, time.UTC),
+		Direction:   "*out",
+		TOR:         "0",
+		Tenant:      "vdf",
+		Subject:     "rif",
+		Account:     "empty10",
+		Destination: "0723",
+	}
+
+	result0, err := cd0.GetMaxSessionDuration()
+	result1, err := cd1.GetMaxSessionDuration()
+	if result0 != result1 || err != nil {
+		t.Errorf("Expected %v was %v, %v", result1, result0, err)
+	}
+}
+
 func TestMaxSessionTimeWithAccountAccount(t *testing.T) {
 	cd := &CallDescriptor{
 		TimeStart:   time.Date(2013, 10, 21, 18, 34, 0, 0, time.UTC),
diff --git a/engine/loader_csv_test.go b/engine/loader_csv_test.go
index a0b0c9044..05b6e01b0 100644
--- a/engine/loader_csv_test.go
+++ b/engine/loader_csv_test.go
@@ -132,12 +132,16 @@ MINI,*topup,*minutes,*out,100,*unlimited,NAT,test,10,,,10
 SHARED,*topup,*monetary,*out,100,*unlimited,,,10,SG1,,10
 TOPUP10_AC,*topup_reset,*monetary,*out,1,*unlimited,*any,,10,,,10
 TOPUP10_AC1,*topup_reset,*minutes,*out,40,*unlimited,DST_UK_Mobile_BIG5,discounted_minutes,10,,,10
+SE0,*topup_reset,*monetary,*out,0,*unlimited,,,10,SG2,,10
+SE10,*topup_reset,*monetary,*out,10,*unlimited,,,10,SG2,,10
 `
 	actionTimings = `
 MORE_MINUTES,MINI,ONE_TIME_RUN,10
 MORE_MINUTES,SHARED,ONE_TIME_RUN,10
 TOPUP10_AT,TOPUP10_AC,ASAP,10
 TOPUP10_AT,TOPUP10_AC1,ASAP,10
+TOPUP_SHARED0_AT,SE0,ASAP,10
+TOPUP_SHARED10_AT,SE10,ASAP,10
 `
 	actionTriggers = `
 STANDARD_TRIGGER,*minutes,*out,*min_counter,10,GERMANY_O2,SOME_1,10
@@ -149,6 +153,8 @@ STANDARD_TRIGGERS,*monetary,*out,*max_counter,5,FS_USERS,LOG_WARNING,10
 	accountActions = `
 vdf,minitsboy;a1;a2,*out,MORE_MINUTES,STANDARD_TRIGGER
 cgrates.directvoip.co.uk,12345,*out,TOPUP10_AT,STANDARD_TRIGGERS
+vdf,empty0,*out,TOPUP_SHARED0_AT,
+vdf,empty10,*out,TOPUP_SHARED10_AT,
 `
 )
 
@@ -592,7 +598,7 @@ func TestLoadRatingProfiles(t *testing.T) {
 }
 
 func TestLoadActions(t *testing.T) {
-	if len(csvr.actions) != 4 {
+	if len(csvr.actions) != 6 {
 		t.Error("Failed to load actions: ", csvr.actions)
 	}
 	as1 := csvr.actions["MINI"]
@@ -701,7 +707,7 @@ func TestLoadSharedGroups(t *testing.T) {
 }
 
 func TestLoadActionTimings(t *testing.T) {
-	if len(csvr.actionsTimings) != 2 {
+	if len(csvr.actionsTimings) != 4 {
 		t.Error("Failed to load action timings: ", csvr.actionsTimings)
 	}
 	atm := csvr.actionsTimings["MORE_MINUTES"][0]
@@ -763,7 +769,7 @@ func TestLoadActionTriggers(t *testing.T) {
 }
 
 func TestLoadAccountActions(t *testing.T) {
-	if len(csvr.accountActions) != 2 {
+	if len(csvr.accountActions) != 4 {
 		t.Error("Failed to load account actions: ", csvr.accountActions)
 	}
 	aa := csvr.accountActions["*out:vdf:minitsboy"]