| Name | Type | Description | Notes |
|---|---|---|---|
| payroll_calendar_id | str | Xero unique identifier for the payroll calendar of the employee | [optional] |
| start_date | date | Start date of the employment (YYYY-MM-DD) | [optional] |
| employee_number | str | The employment number of the employee | [optional] |
| ni_category | NICategoryLetter | [optional] | |
| ni_categories | list[NICategory] | The employee's NI categories | [optional] |