The Illinois Sales Questionnaire is a comprehensive questionnaire designed to collect information from individuals who are engaged in selling goods or services in Illinois. The questionnaire is used to determine a business's eligibility to collect and remit Illinois sales taxes. There are two main types of Illinois Sales Questionnaires: an Initial Sales Tax Registration Questionnaire and an Annual Sales Tax Return. The Initial Sales Tax Registration Questionnaire collects information about the business, its location, and the type of goods or services it sells, as well as contact information for the individual responsible for filing the sales tax returns. The Annual Sales Tax Return collects information about the business's sales activity, including the total amount of sales made in Illinois, the total amount of taxes collected from customers, and the total amount of taxes paid to Illinois. The questionnaire also requires detailed records of all sales transactions, including the customer's name, address, and the amount of taxes charged on each sale.