There are quite a few companies today who are able to offer you free  Audit Software  that is extremely well equipped to handle all your accounting and auditing needs. Your audit software should ensure that you have not headache at all when it comes to getting things right and straightened out as per the rules and orders of the IRS. When you are sure that you have everything in intact, you can be even surer if you have the right kind of audit software installed in your business. There are various kinds of legislations such as Cobit and COSO that need to be incorporated into the software used.