You must file an Amended Business Certificate for Individual form if a sole proprietorship or an Amended Business Certificate for Partners form. This is free of charge.Please note that a new business registration is required to change your business name. Articles of Amendment can be filed to amend (add, change or remove) provisions set out in a corporation's articles. Please enter the current corporation name, OCN, company key and official email address of the Ontario business corporation filing the articles of amendment. After downloading and printing applicable forms, please fill out and mail to: Suffolk County Police Department Headquarters 30 Yaphank Ave Yaphank, NY 11980. Most forms and fees can be processed online. Paper submissions do not qualify for expedited services. Some New York LLCs end up having to change their company name. If this is the case for you, your LLC has to go through a legal process.