SSRS calculation for current financial year

Hi All 

I have a dataset which gives all the Dates total as shown below 

In teh same table i neeed totals of current financial year as well ]

for e.g Totals from April 2014 to March 2015

i tried something like this 

=Sum(IIf( 
 CDate(Fields!new_claimstartdateValue.Value )< ="30/04/2015" and 
CDate(Fields!new_claimstartdateValue.Value) >="01/03/2014",
(Fields!new_profilenumberValue.Value),0),"ProgrammeProfile1")

but gae an error

Any help on this much appreciated

Thanks

Pradnya07