#### Accounting periods

This page contains the list of current accounting periods with the interface for adding or editing them.

An accounting period can not be removed.

Once a period finishes, a new period of the same type is created automatically.

Below is the list of accounting period parameters and their meanings:

- Start time is the date and time when the period begins.
- End time is the date and time when the period ends. When creating a new period, this field is missing, since the date is calculated automatically.
- Period type is selected among the following:

- daily;
- weekly;
- monthly;
- quarterly;
- annual;
- custom duration.

| Monthly period ends in the next calendar month after its start, on the same day of month. However, if the starting date exceeds the number of days in the next month (say, January 30), the period lasts only till the end of the next month.

- Custom duration is the length of period in seconds. Enabled only if Period type is set to Custom duration. The shortest possible duration is 3600 seconds.

- Set number of charges enables setting number of charges per week.

- Charges per week is the number of periodic charge-offs per week. Enabled only if Set number of charges is checked.

When an existing period is edited, its ending date is the only property that may be changed.