Computer software, office supplies & equipment, telephone, Internet, cell phone, percentage of your rent/mortgage, seminars & training, travels to exotic destinations like Hawaii (to investigate “investment opportunities” ;P ), and even some possible fringe benefits (you the employee/president need to be pampered from time to time – maybe a nice Mercedes for a “job well done”, leased for tax deductibility). All these things (and more) that you would normally pay for out of your own pockets (AFTER tax) can be paid for through your corporation (BEFORE tax). For this reason alone you want to have a corporation to handle your legitimate expenses, as it adds up to HUGE TAX SAVINGS.