Give this a try:
=SUMPRODUCT(--(A1:A24="Ted"),--(B1:B24="January")+(B1:B24="February")+(B1:B24="Ma rch")+(B1:B24="April"),--(C1:C24))

http://www.excelforum.com/excel-work...l-countif.html

HTH,
Ryan---

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Ryan---
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"Benjamin" wrote:


=SUMPRODUCT(--(A1:A24="Ted"),--(B1:B24="May"),--(C1:C24))
column a <Person, column b <Month, Column C <Cost

I need to total all of Ted's Costs for May.
But Now I need to do it for the quarter.
So for say January, Feburary, March and April, four month blocks.
How would I tweak Sumproduct to do that ...
All cost for those four months.