diff --git a/balance.go b/balance.go
index 8f8afb78c8..84a37257f2 100644
--- a/balance.go
+++ b/balance.go
@@ -35,10 +35,11 @@ type BalanceDetails struct {
 // For more details see https://stripe.com/docs/api/#balance.
 type Balance struct {
 	APIResource
-	Available       []*Amount       `json:"available"`
-	ConnectReserved []*Amount       `json:"connect_reserved"`
-	Issuing         *BalanceDetails `json:"issuing"`
-	Livemode        bool            `json:"livemode"`
-	Object          string          `json:"object"`
-	Pending         []*Amount       `json:"pending"`
+	Available        []*Amount       `json:"available"`
+	ConnectReserved  []*Amount       `json:"connect_reserved"`
+	InstantAvailable *BalanceDetails `json:"instant_available"`
+	Issuing          *BalanceDetails `json:"issuing"`
+	Livemode         bool            `json:"livemode"`
+	Object           string          `json:"object"`
+	Pending          []*Amount       `json:"pending"`
 }