Simple date subtraction excel

-It seems soo simple, yet I haven't been able to find the solution. I need to display a date that is five years in the past from today.

-I tried a couple of formulas with no success, =days(-1826) and =days(today(), -1826). Daysif, days360, datevalue... etc.

-I've tried searching for a solution with no success. I chose 1826 days as that will incorporate at least 1 leap year, although the 5-year period will occasionally include 2 leap years. 

-This is the tricky part, I would like it to display in the header if possible. I understand there may be rules that need to be followed and that it may not work there. But that's my perfect world solution. I'm understandable that it may not work that way. This will be displayed on a single worksheet in a multi-sheet workbook in excel. (if vcoolio answers this, it's on the historical worksheet you helped me with). I can always find another location to place the code.

-I also need the verbiage of, "Delete if older than (display date 5 years before today)"