So it's coming to the end of 2017, and you still have 5 vacation days left. Luckily your company allows for residual days to carry over into the new year, which means more vacation days for you in 2018! Yay!
But why isn't your planned 2018 vacation not using those 5 residual days when you request the absence?
Don't worry! It will.
absence.io will automatically recalculate once the new vacation year starts. That means even though when you make the request now (in 2017), it's deducting from your 2018 allowance, once the 2018 vacation year comes - that planned vacation will use your residual days from 2017.