Can the fiscal start date of a new corporation be dated prior to the incorporation date? I'm a small business bookkeeper for a client who has registered his new company as a corporation as of March 3 but he has expenses dating back to February 4. I haven't finished entering the history...can I back-date the fiscal start to February 4 so he can claim those expenses? Sage 50 will let me do that but is it permitted for a corporation to do that? Thank-you for any advice.