> For the complete documentation index, see [llms.txt](https://lti.gitbook.io/user_guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://lti.gitbook.io/user_guide/zh-cn/xiang-guan-gai-nian/ying-ji-fei-yong-qian-kuan-de-kou-chu-ji-zhi.md).

# 应计费用欠款的扣除机制

应计费用欠款是指已向投资者收取但因投资账户资金不足而无法成功扣除的跟单订阅费用。系统会针对每种费用类型分别记录欠款。

当资金存入投资账户时，系统会在完成投资者的标准费用计算和扣除流程后，立即触发欠款扣除机制。标准费用计算和扣除流程会在以下情况下执行：

* 达到费用方案中规定的支付周期时
* 从存在有效跟单订阅的投资账户中提款时
* 取消对主账户的订阅时

### 示例 1

假设投资账户存在 48 USD 的应计管理费欠款。

投资者向投资账户存入 20 USD，但该金额不足以偿还全部应计欠款。

当投资账户触发欠款扣除机制时，系统只会扣除部分管理费欠款，并保留剩余的 28 USD 欠款。

与费用欠款扣除相关的余额操作会包含以下格式的备注：

从中扣除费用欠款的投资账户：

`-<fee type> AD|<master account number>|`

接收相应款项的主账户：

`<fee type> AD|<investment account number>|<ID of the balance operation for fund deduction>|`

以下是在 MT Manager 中，从投资账户扣除应计费用欠款时显示的备注示例：

<figure><img src="https://1963181118-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNxwcNnEuBTBq87kginPk%2Fuploads%2Fgit-blob-f2b098cdde059567d2eabcfcd35d257ff62da6e4%2Fcomment-to-fee-debt-deduction.png?alt=media" alt="Comment to the fee debt deduction in the MT Manager"><figcaption><p>Comment to the fee debt deduction in the MT Manager</p></figcaption></figure>

### 示例 2

假设投资账户存在以下多种类型的应计费用欠款：

* 管理费欠款：28 USD
* 业绩费欠款：2.30 USD
* 订阅费欠款：10 USD

投资者向投资账户存入 30 USD，但该金额不足以偿还全部应计费用欠款。

系统会从最近记录的欠款开始依次扣除。

在此过程中，订阅费欠款和业绩费欠款将被全额扣除。此外，系统还会从管理费欠款中扣除 17.70 USD，并保留剩余的 10.30 USD 管理费欠款。

以下是在 MT Manager 中，从投资账户扣除应计费用欠款时显示的备注示例：

<figure><img src="https://1963181118-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNxwcNnEuBTBq87kginPk%2Fuploads%2Fgit-blob-03912fa3336571babb713cf5f7011de1d1f45537%2Fcomments-to-several-fee-debt-deductions.png?alt=media" alt="Comments to fee debt deductions in the MT Manager"><figcaption><p>Comments to fee debt deductions in the MT Manager</p></figcaption></figure>


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