diff --git a/issuing_transaction.go b/issuing_transaction.go
index 4601460d51..bd8404e011 100644
--- a/issuing_transaction.go
+++ b/issuing_transaction.go
@@ -11,6 +11,27 @@ const (
 	IssuingTransactionTypeRefund  IssuingTransactionType = "refund"
 )
 
+// IssuingTransactionPurchaseDetailsFuelType is the type of fuel purchased in a transaction.
+type IssuingTransactionPurchaseDetailsFuelType string
+
+// List of values that IssuingTransactionType can take.
+const (
+	IssuingTransactionPurchaseDetailsFuelTypeDiesel          IssuingTransactionPurchaseDetailsFuelType = "diesel"
+	IssuingTransactionPurchaseDetailsFuelTypeOther           IssuingTransactionPurchaseDetailsFuelType = "other"
+	IssuingTransactionPurchaseDetailsFuelTypeUnleadedPlus    IssuingTransactionPurchaseDetailsFuelType = "unleaded_plus"
+	IssuingTransactionPurchaseDetailsFuelTypeUnleadedRegular IssuingTransactionPurchaseDetailsFuelType = "unleaded_regular"
+	IssuingTransactionPurchaseDetailsFuelTypeUnleadedSuper   IssuingTransactionPurchaseDetailsFuelType = "unleaded_super"
+)
+
+// IssuingTransactionPurchaseDetailsFuelUnit is the unit of fuel purchased in a transaction.
+type IssuingTransactionPurchaseDetailsFuelUnit string
+
+// List of values that IssuingTransactionPurchaseDetailsFuelUnit can take.
+const (
+	IssuingTransactionPurchaseDetailsFuelUnitLiter    IssuingTransactionPurchaseDetailsFuelUnit = "liter"
+	IssuingTransactionPurchaseDetailsFuelUnitUSGallon IssuingTransactionPurchaseDetailsFuelUnit = "us_gallon"
+)
+
 // IssuingTransactionParams is the set of parameters that can be used when creating or updating an issuing transaction.
 type IssuingTransactionParams struct {
 	Params `form:"*"`
@@ -25,25 +46,76 @@ type IssuingTransactionListParams struct {
 	CreatedRange *RangeQueryParams `form:"created"`
 }
 
+// IssuingTransactionPurchaseDetailsFlightSegment contains extra information about the flight in this transaction.
+type IssuingTransactionPurchaseDetailsFlightSegment struct {
+	ArrivalAirportCode   string `json:"arrival_airport_code"`
+	Carrier              string `json:"carrier"`
+	DepartureAirportCode string `json:"departure_airport_code"`
+	FlightNumber         string `json:"flight_number"`
+	ServiceClass         string `json:"service_class"`
+	StopoverAllowed      bool   `json:"stopover_allowed"`
+}
+
+// IssuingTransactionPurchaseDetailsFlight contains extra information about the flight in this transaction.
+type IssuingTransactionPurchaseDetailsFlight struct {
+	DepartureAt   int64                                             `json:"departure_at"`
+	PassengerName string                                            `json:"passenger_name"`
+	Refundable    bool                                              `json:"refundable"`
+	Segments      []*IssuingTransactionPurchaseDetailsFlightSegment `json:"segments"`
+	TravelAgency  string                                            `json:"travel_agency"`
+}
+
+// IssuingTransactionPurchaseDetailsFuel contains extra information about the fuel purchase in this transaction.
+type IssuingTransactionPurchaseDetailsFuel struct {
+	Type            IssuingTransactionPurchaseDetailsFuelType `json:"type"`
+	Unit            IssuingTransactionPurchaseDetailsFuelUnit `json:"unit"`
+	UnitCostDecimal float64                                   `json:"unit_cost_decimal,string"`
+	VolumeDecimal   float64                                   `json:"volume_decimal,string"`
+}
+
+// IssuingTransactionPurchaseDetailsLodging contains extra information about the lodging purchase in this transaction.
+type IssuingTransactionPurchaseDetailsLodging struct {
+	CheckInAt int64 `json:"check_in_at"`
+	Nights    int64 `json:"nights"`
+}
+
+// IssuingTransactionPurchaseDetailsReceipt contains extra information about the line items this transaction.
+type IssuingTransactionPurchaseDetailsReceipt struct {
+	Description string  `json:"description"`
+	Quantity    float64 `json:"quantity"`
+	Total       int64   `json:"total"`
+	UnitCost    int64   `json:"unit_cost"`
+}
+
+// IssuingTransactionPurchaseDetails contains extra information provided by the merchant.
+type IssuingTransactionPurchaseDetails struct {
+	Flight    *IssuingTransactionPurchaseDetailsFlight    `json:"flight"`
+	Fuel      *IssuingTransactionPurchaseDetailsFuel      `json:"fuel"`
+	Lodging   *IssuingTransactionPurchaseDetailsLodging   `json:"lodging"`
+	Receipt   []*IssuingTransactionPurchaseDetailsReceipt `json:"receipt"`
+	Reference string                                      `json:"reference"`
+}
+
 // IssuingTransaction is the resource representing a Stripe issuing transaction.
 type IssuingTransaction struct {
 	APIResource
-	Amount             int64                             `json:"amount"`
-	Authorization      *IssuingAuthorization             `json:"authorization"`
-	BalanceTransaction *BalanceTransaction               `json:"balance_transaction"`
-	Card               *IssuingCard                      `json:"card"`
-	Cardholder         *IssuingCardholder                `json:"cardholder"`
-	Created            int64                             `json:"created"`
-	Currency           Currency                          `json:"currency"`
-	Dispute            *IssuingDispute                   `json:"dispute"`
-	ID                 string                            `json:"id"`
-	Livemode           bool                              `json:"livemode"`
-	MerchantData       *IssuingAuthorizationMerchantData `json:"merchant_data"`
-	MerchantAmount     int64                             `json:"merchant_amount"`
-	MerchantCurrency   Currency                          `json:"merchant_currency"`
-	Metadata           map[string]string                 `json:"metadata"`
-	Object             string                            `json:"object"`
-	Type               IssuingTransactionType            `json:"type"`
+	Amount             int64                              `json:"amount"`
+	Authorization      *IssuingAuthorization              `json:"authorization"`
+	BalanceTransaction *BalanceTransaction                `json:"balance_transaction"`
+	Card               *IssuingCard                       `json:"card"`
+	Cardholder         *IssuingCardholder                 `json:"cardholder"`
+	Created            int64                              `json:"created"`
+	Currency           Currency                           `json:"currency"`
+	Dispute            *IssuingDispute                    `json:"dispute"`
+	ID                 string                             `json:"id"`
+	Livemode           bool                               `json:"livemode"`
+	MerchantData       *IssuingAuthorizationMerchantData  `json:"merchant_data"`
+	MerchantAmount     int64                              `json:"merchant_amount"`
+	MerchantCurrency   Currency                           `json:"merchant_currency"`
+	Metadata           map[string]string                  `json:"metadata"`
+	Object             string                             `json:"object"`
+	PurchaseDetails    *IssuingTransactionPurchaseDetails `json:"purchase_details"`
+	Type               IssuingTransactionType             `json:"type"`
 }
 
 // IssuingTransactionList is a list of issuing transactions as retrieved from a list endpoint.