# Internal account

## Introduction to internal accounts

Internal accounts are the bank's technical accounts in the account module, used to reflect incoming or outgoing funds movements. The funds held in internal accounts are not categorised as customer deposits.

In the account module, internal accounts can operate in two modes:

1. [Adjustable account balance mode](#adjustable-balance-mode).
2. [Immutable account balance mode](#immutable-account-balance-mode). 

## Adjustable balance mode

### Regular automated adjustment

By default, the internal accounts balances are set to zero daily, a few minutes before the [Tuum day-change process](#user-content-fn-1)[^1] begins.

<figure><picture><source srcset="/files/5YKXXyJFEk6O3MEieOC3" media="(prefers-color-scheme: dark)"><img src="/files/tfUKFTYgHnCEXaizcWze" alt=""></picture><figcaption></figcaption></figure>

In financial accounting, the reset transaction moves the funds from the deposit and overdraft portfolio GL accounts to the default or dedicated GL suspense account.

### Irregular manual adjustment

In addition to regular automated adjustments, you can manually reset the balances of all internal accounts or just one particular account during the day.

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{% hint style="info" %}
Learn more by referring to the description of the [reset internal account balance](/backoffice-user-guides/iDyT31cW9CYApPltrXUd/account-how-to-guides/internal-account-balance-reset.md).
{% endhint %}

## Immutable account balance mode

You can also avoid automatic or manual balance reset by turning off the internal account balance reset option.&#x20;

<figure><picture><source srcset="/files/9DxXj2DbRr4pInOoclXN" media="(prefers-color-scheme: dark)"><img src="/files/HChd9VjmVcTBOetMnKVu" alt=""></picture><figcaption></figcaption></figure>

In financial accounting, the funds are reflected on deposit and overdraft portfolio GL accounts.

{% hint style="info" %}
Find more information on [disabling the automatic balance reset](/backoffice-user-guides/iDyT31cW9CYApPltrXUd/account-how-to-guides/internal-account-balance-reset/turn-off-balance-reset.md) for a particular internal account.
{% endhint %}

[^1]: A process that changes Tuum banking date in all Tuum business modules and starts business module related nightly batch process such as interest calculation, repayments, invoice generation etc. The day-change process starts at 00:00.


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