Just an alternative:

=IF(COUNT(A1:B1)<2,"",CHOOSE(MIN(CEILING(B1-A1,30)/30,3),"Up to 30 days
overdue","31 - 60 days overdue","Over 60 days overdue"))

--
HTH

Sandy
In Perth, the ancient capital of Scotland
and the crowning place of kings


Replace @mailinator.com with @tiscali.co.uk


"Annie" wrote in message
...
Hi

I am trying to work out a formula that will tell me the number of days
between two dates. For example, if I have a column that contains one set
of
dates and another column that contains a set of dates - is there a formula
I
can use to see the number of days difference between the two dates. I
need
to be able to see whether a customer is 30 60 or 90 days overdue with
payment.

Hope that is clear

Many thanks

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Kind regards

Ann Shaw