Provide Form to the CRA. Give Form to the CRA. Louisville KY 40. Email to request form or call. Call to verify that it is the right form. Call to verify that Form W-9 is correctly completed in accordance with the instructions. Post office box addresses for mailing W-9 and W-3 form: Louisville Kentucky (outside Louisville) Post office box: 40291 Post office box number: 4110 Postal Code: 40241 Louisville KY 40241. Post office box numbers for mailing W-9 and W-3 form: Louisville, KY (outside Louisville) Post office box: 40291 Post office box number: 4129 Postal Code: 40241 Postal Address: Box 1234, Louisville, KY 40241 Louisville KY. Post office boxes for mailing W-9 and W-3 form: Louisville KY (outside Louisville) Post office box: 40291 Post office box number: 4131 Postal Code: 40241 Postal Address: Box 1234, Louisville, KY 40241 Post office box numbers for mailing W-9 and W-3 form: Louisville KY (outside Louisville) Post office box: 40291 Post office box number: 4131 Postal Code: 40241 Postal address: Box 1234, Louisville, KY 40241 Louisville, KY (out of town) Post office box numbers for mailing W-9 and W-3 form: Louisville, KY (out of town) Post office box #40291#4110#4129 Postal Code: 40241 Postal Address: Box 1234, Louisville, KY 40241 LOUISIANA Information on Form W-2 and W-3 from the Internal Revenue Service — Form W-2 and W-3. Louisiana Information The Internal Revenue Code requires that tax returns be filed (except federal income tax returns), the required tax is paid, and a receipt is received stating that the return has been filed and the required payment made. These requirements are known as requirements of Federal “FATWA.” These requirements are generally discussed in detail in the following tables: IRS Form 8863 for Federal and State Income Taxes.