That's right Rick. I want 12 (or other variable number) billing periods that
include the start date as one of them. You're formula result goes back 1 year
instead of forward. Can you post through an amendment? Here's my actual test:

A1: 30-Jun-06
A2: 12 (or any other variable periods)
A3: 31-May-07 (your formula goes here)

Thanks!