Is this what you're looking for?
=IF(ISERROR((YEAR(O8)-YEAR(K8))*12+MONTH(O8)-MONTH(K8)/12),"NA",IF(R8="Full
Duty","NA",((YEAR(O8)-YEAR(K8))*12+MONTH(O8)-MONTH(K8))/12))

FYI, there is a IsText( ) function but no IfText( ) function.
--
Hope this helps.
If it does, please click the Yes button.
Thanks in advance for your feedback.
Gary Brown



"DonaMil" wrote:

I am in Excel 2003. The error comes back with a "#value" entry. The
original formula was okay until I wanted to add the condition that if there
was text reading "Full Duty" in R8 I wanted the cell to show "NA" instead of
the formula result. I've tried several different ways but always come up
with either an error message telling me my formula is wrong or it goes
through and I get an "#value"entry

=IF(ISERROR((YEAR(O8)-YEAR(K8))*12+MONTH(O8)-MONTH(K8))/12,"NA",((YEAR(O8)-YEAR(K8))*12+MONTH(O8)-MONTH(K8))/12),IFText(R8="Full
Duty","NA",((YEAR(O8)-YEAR(K8))*12+MONTH(O8)-MONTH(K8))/12)