We have added the option for users to include additional bank items that will be included in the 13th Month Generation From the banks page, you can set which bank items you want to include for the 13th month computation.
Release Note: 13th Month Payment Effectivity Date
When generating the 13th Month Payment before, it will automatically use the date you have generated the 13th Month. We have now updated the 13th Month Payment generation to include an “effectivity date”. The effectivity date will let you set the payment effectivity date of your 13th Month Pay.