> For the complete documentation index, see [llms.txt](https://docs.a1erp.digiwin.com/a1faq/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.a1erp.digiwin.com/a1faq/12.-gong-yong-she-ding/13.001-zuo-piao-de-li.md).

# 13.001 作廢發票的處理？

開立電子發票後，作廢的發票還要請客戶寄回嗎？

B2C的發票還是建議請客戶寄回，避免發票中獎，有兌獎時企業要自付損失，例如A客戶銷退商品，發票作廢後，發票有中獎，拿去兌獎了，這樣就要由營業人負擔這筆中獎金額，故在退款給客戶之前，還是應請客戶將發票寄回，公司收到發票後蓋印作廢章留抵，再從系統建立銷貨退回單，並上傳作廢資料喲。

![](https://4269000034-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LIKjbHjLny03GLOhut4%2F-LMpV67RiSLe4Gui_S_D%2F-LMphrEgxSJ4G6t_B_tX%2F2018-09-20_%E7%99%BC%E7%A5%A8-01.png?alt=media\&token=259f2c7b-95bc-4d60-a6ee-63cdae4151f6)