You can reset your holiday year date within - Administration -> Company -> Settings -> Time off settings (Global)

• Holiday year: If your holiday year starts on a set day then you should leave this at "Set date" and enter the date in "Start of holiday year". If each employees holiday year starts on the anniversary of their start date then choose "Employee start date".
• Start of Holiday Year: If the Holiday Year field is set to 'Set Date', enter the date in this field. This will indicate the first day in your current holiday year.
• Carryover days and expiry date: If you want to allow employees to carry over days from one holiday year to the next then you can enter the maximum number of days and the date on which they must be used by. If you leave these blank then carryover will not be available - if you'd like to have no maximum days and/or no expiry date then simply enter values and dates which will never be reached such as 400 days and date year of 2030 for example.
• Include Carryover in Summary Type: If there has been carryover allocated to an employee and this option is set to yes and a Summary Time Off Type has been created, the carry-over can be included in this type.

And also if you have site level time off settings enabled within Administration -> HR -> Data Management -> Sites

Holiday Year: Select whether your holiday year starts from the employee start date or a set date in the year. If 'Set date' is selected, a date picker field will appear so you can make your choice. 

Carryover days: Select the maximum number of carryover days which employees on this site are entitled to

Expiry date for carryover days: Select the date upon which carryover values will automatically expire.

You do have the option to Duplicate your global time off settings with the button above  your fields.