In the My Leave page, you are shown your current allowance. It looks like the screenshot below.

So, what do they all mean?

Allowance

Your 'allowance' is the total amount of leave you are allowed to take during the year and is set by your company.

Time off in lieu

Some companies choose to allow their staff to record Time off in lieu (or TOIL).

This is overtime which staff have worked resulting in extra time off, rather than extra payments. If you do not have time off in lieu enabled for your company then you will not see this line in your summary.

Total

This is the total amount of leave which can be taken by the staff member during the year.

Total is calculated as Allowance + Time off in lieu. 

Taken

This is showing you how many days (or hours) of your allowance you have already taken.

Specifically, we are showing the number of leave dates in approved or pending approval status where the start date of the leave is in the past. Leave starting today is treated as taken.

Booked

This is showing you how many days (or hours) of your allowance you have already booked in total. Therefore this will show all your booked leave, whether it has already been taken or is due to be taken in the future.

To calculate this figure we add up the number of leave dates in approved or pending approval status for the year.

We do not allow the amount of booked leave to exceed the total allowance.

Remaining to take

This gives you an idea of how much leave you still need to take before the end of the leave year in order to use up your full allowance. This will include the leave you have already booked to take in the future as well as any leave you still need to book.

Remaining to book

This tells you how many more days (or hours) you have available to book before you will exceed your allowance. It is not possible to request more leave than you have 'remaining to book'.