The job description on the tax return is apparently not very important. A wordor two is sufficient like manager physician route sales clerical servicesor whatever is appropriate is all that is needed on that form. Include enoughthat the IRS can see the relationship to any significant expenses you havelike a lot of mileage. But if you have such significant expenses you would befiling Schedule C. We do not always include the business code and have had noissues with that from the IRS.If you have an EIN for your business you should include that so the IRS knowsthe business return has been filed.