=(YEAR(E7)-YEAR(hiredate))-(((DATE(YEAR(E7),MONTH(hiredate),DAY(hiredate)))-E7)/365)
Not sure if this will help, but it is what I use to tall years of employment.
HIREDATE equals the cell with the hire date. Example (1/4/1985)
E7 in my formula is actually date of end of our payweek. Which you could make current date. Hope this helps