Payable to the City of Naperville. See box 10 below. 3 Address, or street address if different, of business (if different), you file your return for (or if not, you report the business address on your tax return and use it to report on our return). 4 Taxpayers for your account. 5 Employers for your account. 6 Enter information about your employer for your account. A box must be checked. 7 Tax year 2018. 8 Form number and series shown on your tax return. 9 The certification section of this form is for your records only and will not be returned to you. 10 Do not include Form W-9 on your return unless the return was prepared by you as a W-9. Enter information that may be disclosed on your Form W-9. 11 Business address. 12 Telephone number for the taxpayer. 13 This form is available with or without a certification form. Either one is fine as part of your return. Form W-9 must be used if it was not previously provided on the return. Box 10 — Information to Provide on Your W-9 The following is an example of information you would provide on your W-9. Your name and address: Your address is a business address. If you report the address as a street address on your return, it must be the same as your business address. Your business name or trade name: Your business name or trade name is an important part of your business identity. It can help you and the IRS to verify your identity, as well as to determine your business tax status. Your type of business: Your type of business is important for determining your business tax status. It can help you to determine whether you should submit information about your employees to the IRS and to the State of Illinois as required under the Illinois Wage and Tax Statement Act (IL-WTSA). The type of business can be one that pays sales or use taxes, or does not. For more on the types of businesses that pay taxes, click here. If you are filing as a sole proprietor, member of a partnership or similar business organization, you must enter “S.P.” before this information. If your business is an H-2B dependent employer for 2018, do not enter the employer's name in this box.