It really depends on your Company needs. You can use quickbooks which is relatively easy, as is peachtree. They both would have to be upgraded each year for tax recording. How fast and furious do you expect your business to grow? Look at a program that can grow with the company without having to change over to a new software. I have used CTI,Skyline,Quickbooks Pro and Peachtree. Peachtree is probably what you would want as it is widely used (unlikely to be discontinued any time soon) and when you hire all the workers to use it for your Company,most Accounting people know it.