First Day of financial year is April 1st.
T-SQL Query to return April 1st for the getdate()
Financial Year: April 1st to March 31st
Try this:
select DATEFROMPARTS(Yr, 4, 1) [start], DATEFROMPARTS(Yr + 1, 3, 31) [end] from
(select case when DATEPART(month, getdate()) < 4 then DATEPART(year, getdate()) - 1 else DATEPART(year, getdate()) end Yr) a