SELECT
ID
CAST(CalMonth AS CHAR(2)) + '/' + CAST(CalYear AS CHAR(4)) AS Date,
Total
FROM (
SELECT
ID,
MONTH(Date) AS CalMonth,
YEAR(Date) AS CalYear,
SUM(Total) AS Total
FROM [TableName]
WHERE
Date BETWEEN '04/04/2014' AND '04/03/2015'
GROUP BY
ID,
MONTH(Date),
YEAR(Date))