Off-the-shelf financial software tends to be very generic in it's design and structure, which could mean you are paying for features you will never use and complicating the user's experience. Whereas custom built financial software will make these tasks much more efficient and will save money by reducing the number of hours required to undertake these tasks manually. From a managerial point-of-view, this frees up many man-hours, enables staff to use their time more productively, in turn increasing your profit margin.