ok I got it with your help.
SELECT Sum(TblPayments.Creditamt) AS SumOfCreditamt, Format([Recdate],"mmmm") AS AMonth, DatePart("yyyy",[Recdate]) AS AYear
FROM TblPayments
GROUP BY Format([Recdate],"mmmm"), DatePart("yyyy",[Recdate]), DatePart("m",[Recdate])
ORDER BY DatePart("m",[Recdate])...