'Advance' holiday payments are payments for holidays that are in advance of the current pay period and although the holiday falls outside the current pay period in a future pay period, you want to process the payment for it now.
In the Payrun section, click on the Other Payments link. Select Advance Holiday from the Holiday Payment Type drop down list. Advanced Holiday Pay should not be entered as an Other Payment because NICs are calculated differently on Advanced Holiday pay. Enter the number of complete pay periods you wish to advance (The 'From Date' and 'To Date' and 'Day or No.' will be calculated accordingly) You can only enter full pay periods as Advanced, i.e. full weeks or full months. It is not possible to advance fractions of pay periods. Enter the rate / hour and click the save button to save the entered data.