The degree of risk depends on what exactly is involved and what the OP is going to do. I have no idea of the complexity of the "client's" business, the state of the records, etc. Just because a business might be relatively small does not guarantee that it has simple issues. I also do not know the knowledge and skill of the OP. The OP is still just a student, and I have no idea how far along he/she is in the accounting program. As a result, I certainly could not say that this is a risk free undertaking for the OP, or even say that it is a low risk undertaking. The OP ought to at least consult a professor at his school who knows his/her skill level fairly well about whether this is something he is really able to tackle and whether he should instead refer the "client" to someone with more skill and experience.