I've got a beauty for you.
From 0-4 years, the employees get 0.83 days accrued per month.
From 5-8 years, the employess get 1.25 days accrued per month.
9 and over years, they get 1.70 days per month.
I've currently got the worksheet to calculate starting from Jan 1st of each
year through December 31st, depending on the years they worked.

What I don't have is if they start in the middle of the year, how to
calculate accrued time.

Also, I've got it set up so that at todays date, if I've used more vacation
time than I've accrued, this is the amount that I have to pay back. However,
we also need to have it show 30 or 60 days from now in case the employee
gives notice.