In recent time, GIS technology has been used in banking sector. Geographical  Information System uses to make a better management in various sectors in the real life world. The GIS technology covered how to make a decision, data sourcing, data quality and used them in real time environments. Now days GIS is one of the useful analysis  tool,  where  we  can  implement  our  thinking  based  on  several  real  life  applications. Developed countries have made proper utilization of GIS technology. At present  Bangladesh  need  to  utilizes  GIS  technology  to  develop  in  different  organizational  sectors  such  as  banking,  fleet  management,  emergency  services,  and tourism and government infrastructure. For example, In the banking sector, we can implement this technology to provides high quality of services to the customers within short  time.  Therefore,  GIS  technology  provide  the  proper  support  in  bank  industry  and our thesis title “Usability of GIS in banking sector” will provide an experimental outline  about  the  banking  sector  in  Dhaka,  Bangladesh.  Generally,  it  is  a  demo  version  for  a  banking  sector,  that  would  be  provide  to  identify  their  customers,  the location  of  the  ATM  booths,  evaluate  land  value,  and  find  out  the  shortest  path,  nearest service centre, important building and city information. At present there is no such  kind  of  existing  model  for  banking  sector  in  Bangladesh.  So,  we  identify  the  problem  and  decide  to  implement  our  model.  In  our  proposed  frame  work,  we  used different type of GIS tools such as ArcMap, ArcCatalog, ArcPad, CartaLinx, ArcView etc. To implement this model we needed to digitize Dhaka city base map and input different  type  of  data.  For  the  experiment  part,  we  have  chosen  secondary  data  collection method and theoretical frame work support. We have made our own data model to do this experiment and we have covered maximum area in Dhaka city, where we choose a model area named “Motijheel”. Finally we have discussed the simulation result  according  to  our  framework,  which  provides  user  friendly  information.  Our  thesis paper focuses an integrated approach of GIS based system which increases the bank profitability.