> For the complete documentation index, see [llms.txt](https://gtecbest.gitbook.io/gtec/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gtecbest.gitbook.io/gtec/commission-rules/share-system-fee.md).

# B.共同負擔費用

共同負擔費用包含以下4種費用:

* 營業稅
* 會員點數
* 優惠券