(A1) + 3 month :

=DATE(YEAR(A1),MONTH(A1)+3,DAY(A1))

HTH
--
AP

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I have a date in column A. I want to set up quarterly windows using this
date. What is the formula for adding 3 months to date? I can get the
ending
date by subtracting a day from the beginning of the next quarter date.