Productivity Use Form SS-4 to open the business of your dreams in 2017 If you are going to do something you are interested in or invest in a business that you believe has great potential in 2017, you should know how to ... Productivity How to Apply for an Employer Identification Number Using Form SS-4 If you need the Employer Identification Number, you must file IRS Form SS-4. It is a key document for every individual who wants to establish his own business on ...