diff --git a/timespans/userbudget.go b/timespans/userbudget.go
index 0fce67cd3..e403752bf 100644
--- a/timespans/userbudget.go
+++ b/timespans/userbudget.go
@@ -116,6 +116,21 @@ func (ub *UserBudget) getTariffPlan(storage StorageGetter) (tp *TariffPlan, err
 	return ub.tariffPlan, err
 }
 
+func (ub *UserBudget) getVolumeDiscount(storage StorageGetter) (float64, error) {
+	tariffPlan, err := ub.getTariffPlan(storage)
+	if err != nil {
+		return 0.0, err
+	}
+	thresholds := len(tariffPlan.VolumeDiscountThresholds)
+	for i, vd := range tariffPlan.VolumeDiscountThresholds {
+		if ub.VolumeDiscountSeconds >= vd.Volume &&
+			(i > thresholds-2 || ub.VolumeDiscountSeconds < tariffPlan.VolumeDiscountThresholds[i+1].Volume) {
+			return vd.Discount, nil
+		}
+	}
+	return 0, nil
+}
+
 /*
 Returns user's avaliable minutes for the specified destination
 */
diff --git a/timespans/userbudget_test.go b/timespans/userbudget_test.go
index 0d5a61f0d..d4e311cd5 100644
--- a/timespans/userbudget_test.go
+++ b/timespans/userbudget_test.go
@@ -295,6 +295,37 @@ func TestResetUserBudget(t *testing.T) {
 
 }
 
+func TestGetVolumeDiscountHaving(t *testing.T) {
+	vd := &VolumeDiscount{100, 11}
+	seara := &TariffPlan{Id: "seara", SmsCredit: 100, VolumeDiscountThresholds: []*VolumeDiscount{vd}}
+	rifsBudget := &UserBudget{Id: "other", Credit: 21, tariffPlan: seara, ResetDayOfTheMonth: 10, VolumeDiscountSeconds: 100}
+	result, err := rifsBudget.getVolumeDiscount(nil)
+	if err != nil || result != 11 {
+		t.Errorf("Expected %v was %v", 11, result)
+	}
+}
+
+func TestGetVolumeDiscountNotHaving(t *testing.T) {
+	vd := &VolumeDiscount{100, 11}
+	seara := &TariffPlan{Id: "seara", SmsCredit: 100, VolumeDiscountThresholds: []*VolumeDiscount{vd}}
+	rifsBudget := &UserBudget{Id: "other", Credit: 21, tariffPlan: seara, ResetDayOfTheMonth: 10, VolumeDiscountSeconds: 99}
+	result, err := rifsBudget.getVolumeDiscount(nil)
+	if err != nil || result != 0 {
+		t.Errorf("Expected %v was %v", 0, result)
+	}
+}
+
+func TestGetVolumeDiscountNotSteps(t *testing.T) {
+	vd1 := &VolumeDiscount{100, 11}
+	vd2 := &VolumeDiscount{500, 20}
+	seara := &TariffPlan{Id: "seara", SmsCredit: 100, VolumeDiscountThresholds: []*VolumeDiscount{vd1, vd2}}
+	rifsBudget := &UserBudget{Id: "other", Credit: 21, tariffPlan: seara, ResetDayOfTheMonth: 10, VolumeDiscountSeconds: 551}
+	result, err := rifsBudget.getVolumeDiscount(nil)
+	if err != nil || result != 20 {
+		t.Errorf("Expected %v was %v", 20, result)
+	}
+}
+
 /*********************************** Benchmarks *******************************/
 
 func BenchmarkGetSecondForPrefix(b *testing.B) {