diff --git a/ik3cloud/receivable.go b/ik3cloud/receivable.go
index 38c3bdf..6758205 100644
--- a/ik3cloud/receivable.go
+++ b/ik3cloud/receivable.go
@@ -36,6 +36,9 @@ type ReceivableProductItem struct {
 	TaxAmount       decimal.Decimal // 税额
 	UnitAmount      decimal.Decimal // 含税金额
 	ExTaxUnitAmount decimal.Decimal // 不含税金额
+	ExportCost      decimal.Decimal // 外销成本
+	MinusTaxRate    decimal.Decimal // 退税率
+	MinusTaxAmount  decimal.Decimal // 退税额
 }
 
 // Save @TITLE 保存应收