Bob Phillips wrote

You are right, I got carried away with my TODAY()s.

I should have said

=IF(E4="","",IF(E4<=TODAY()+21,E4+21,DATE(YEAR(E4) ,MONTH(E4)+6,DAY(E4))))

and

=IF(E4="","",IF(E4<=TODAY()+21,E4+90,DATE(YEAR(E4) +1,MONTH(E4),DAY(E4))))

but it still gives different answers than you predict, as according to my
math, 4th April is <= TODAY + 21 days, so it is just E4 + 21 and 90.


Ok, now I'm thoroughly confused by the results.
Let's try this again.
If E4 is more than 21 days ago, F4 should be 6 months from E4 and G4 should
be 1 year from E4
If E4 is less than 21 days ago, F4 should be 21 days from E4 and G4 should
be 90 days from E4

--
David