There is VERY little chance of be audited.
It is definitely a "gray area". Personally, I think you are an Independent Contractor, but you could easily make an arguement that you are a Household Employee.
Another thing to consider: An an Independent Contractor, you will be able to deduct any business expenses that you have (including mileage, *IF* you qualify for it), which will reduce your 'profit' and therefore reduce your taxes. As a Household Employee, you won't benefit from any business deductions.
Again, you can probably make an argument either way, so think about, decide, then don't worry about your decision. 🙂
