Developing Computer Programs for Banks based on 
Interest
Question

                I am a software developer by profession. My question is 
whether I could develop software for a bank which deals in 
ribaa (interest).
Praise be to Allah.It is not permitted, because Allah has forbidden it in the aayah 
(interpretation of the meaning):
". . . but do not help one another in sin and transgression. . ." 
[al-Maa'idah 5:2]
There is no doubt that by doing this work you are making it easy for the 
bank to deal in the haraam matter of ribaa using the programs that you 
have developed. May Allah help us and you to do the things that will 
please Him, and keep us away from the things that will earn His wrath. 
May Allah bless our Prophet Muhammad.