Does anyone know a site where I can help FREE economics, business and accounts homework help?
There are probably many free sites, depending on what level you are studying. The question you need to ask yourself is what is their value to you. Free normally equals generic or poor. I am a tutor on a number of sites and my time is as precious to me as your time is to you and that is why I charge. I also like to eat and this helps pay my bills. Unfortunately (NO sarcasm intended) life isn't free.
Good luck (genuinely) in finding a good reliable site who can help you for free